senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkLightingImageFilter.h" |
| 9 | #include "SkBitmap.h" |
| 10 | #include "SkColorPriv.h" |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 11 | #include "SkDevice.h" |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 12 | #include "SkPoint3.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 13 | #include "SkReadBuffer.h" |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 14 | #include "SkTypes.h" |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 15 | #include "SkWriteBuffer.h" |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 16 | |
| 17 | #if SK_SUPPORT_GPU |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 18 | #include "GrContext.h" |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 19 | #include "GrDrawContext.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 20 | #include "GrFragmentProcessor.h" |
| 21 | #include "GrInvariantOutput.h" |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 22 | #include "GrPaint.h" |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 23 | #include "effects/GrSingleTextureEffect.h" |
wangyix | 6af0c93 | 2015-07-22 10:21:17 -0700 | [diff] [blame] | 24 | #include "gl/GrGLFragmentProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 25 | #include "gl/builders/GrGLProgramBuilder.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 26 | |
| 27 | class GrGLDiffuseLightingEffect; |
| 28 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 29 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 30 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 31 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 32 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 33 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 34 | namespace { |
| 35 | |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 36 | const SkScalar gOneThird = SkIntToScalar(1) / 3; |
| 37 | const SkScalar gTwoThirds = SkIntToScalar(2) / 3; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 38 | const SkScalar gOneHalf = 0.5f; |
| 39 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 40 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 41 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 42 | void setUniformPoint3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 43 | const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 44 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 45 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 46 | } |
| 47 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 48 | void setUniformNormal3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 49 | const SkPoint3& point) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 50 | setUniformPoint3(pdman, uni, point); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 51 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 52 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 53 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 54 | // Shift matrix components to the left, as we advance pixels to the right. |
| 55 | inline void shiftMatrixLeft(int m[9]) { |
| 56 | m[0] = m[1]; |
| 57 | m[3] = m[4]; |
| 58 | m[6] = m[7]; |
| 59 | m[1] = m[2]; |
| 60 | m[4] = m[5]; |
| 61 | m[7] = m[8]; |
| 62 | } |
| 63 | |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 64 | static inline void fast_normalize(SkPoint3* vector) { |
| 65 | // add a tiny bit so we don't have to worry about divide-by-zero |
| 66 | SkScalar magSq = vector->dot(*vector) + SK_ScalarNearlyZero; |
| 67 | SkScalar scale = sk_float_rsqrt(magSq); |
| 68 | vector->fX *= scale; |
| 69 | vector->fY *= scale; |
| 70 | vector->fZ *= scale; |
| 71 | } |
| 72 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 73 | class DiffuseLightingType { |
| 74 | public: |
| 75 | DiffuseLightingType(SkScalar kd) |
| 76 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 77 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 78 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 79 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 80 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 81 | SkPoint3 color = lightColor.makeScale(colorScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 82 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 83 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 84 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 85 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 86 | } |
| 87 | private: |
| 88 | SkScalar fKD; |
| 89 | }; |
| 90 | |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 91 | static SkScalar max_component(const SkPoint3& p) { |
| 92 | return p.x() > p.y() ? (p.x() > p.z() ? p.x() : p.z()) : (p.y() > p.z() ? p.y() : p.z()); |
| 93 | } |
| 94 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 95 | class SpecularLightingType { |
| 96 | public: |
| 97 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 98 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 99 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 100 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 101 | SkPoint3 halfDir(surfaceTolight); |
| 102 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 103 | fast_normalize(&halfDir); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 104 | SkScalar colorScale = SkScalarMul(fKS, |
| 105 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 106 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 107 | SkPoint3 color = lightColor.makeScale(colorScale); |
| 108 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(max_component(color)), 255), |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 109 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 110 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 111 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 112 | } |
| 113 | private: |
| 114 | SkScalar fKS; |
| 115 | SkScalar fShininess; |
| 116 | }; |
| 117 | |
| 118 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 119 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 120 | } |
| 121 | |
| 122 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 123 | SkPoint3 vector = SkPoint3::Make(SkScalarMul(-x, surfaceScale), |
| 124 | SkScalarMul(-y, surfaceScale), |
| 125 | SK_Scalar1); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 126 | fast_normalize(&vector); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 127 | return vector; |
| 128 | } |
| 129 | |
| 130 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 131 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 132 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 133 | surfaceScale); |
| 134 | } |
| 135 | |
| 136 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 137 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 138 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 139 | surfaceScale); |
| 140 | } |
| 141 | |
| 142 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 143 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 144 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 145 | surfaceScale); |
| 146 | } |
| 147 | |
| 148 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 149 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 150 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 151 | surfaceScale); |
| 152 | } |
| 153 | |
| 154 | |
| 155 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 156 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 157 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 158 | surfaceScale); |
| 159 | } |
| 160 | |
| 161 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 162 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 163 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 164 | surfaceScale); |
| 165 | } |
| 166 | |
| 167 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 168 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 169 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 170 | surfaceScale); |
| 171 | } |
| 172 | |
| 173 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 174 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 175 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 176 | surfaceScale); |
| 177 | } |
| 178 | |
| 179 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 180 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 181 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 182 | surfaceScale); |
| 183 | } |
| 184 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 185 | template <class LightingType, class LightType> void lightBitmap(const LightingType& lightingType, |
| 186 | const SkImageFilterLight* light, |
| 187 | const SkBitmap& src, |
| 188 | SkBitmap* dst, |
| 189 | SkScalar surfaceScale, |
| 190 | const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 191 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 192 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 193 | int left = bounds.left(), right = bounds.right(); |
| 194 | int bottom = bounds.bottom(); |
| 195 | int y = bounds.top(); |
| 196 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 197 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 198 | int x = left; |
| 199 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 200 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 201 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 202 | m[4] = SkGetPackedA32(*row1++); |
| 203 | m[5] = SkGetPackedA32(*row1++); |
| 204 | m[7] = SkGetPackedA32(*row2++); |
| 205 | m[8] = SkGetPackedA32(*row2++); |
| 206 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 207 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 208 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 209 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 210 | { |
| 211 | shiftMatrixLeft(m); |
| 212 | m[5] = SkGetPackedA32(*row1++); |
| 213 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 214 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 215 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 216 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 217 | } |
| 218 | shiftMatrixLeft(m); |
| 219 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 220 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 221 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 222 | } |
| 223 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 224 | for (++y; y < bottom - 1; ++y) { |
| 225 | int x = left; |
| 226 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 227 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 228 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 229 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 230 | m[1] = SkGetPackedA32(*row0++); |
| 231 | m[2] = SkGetPackedA32(*row0++); |
| 232 | m[4] = SkGetPackedA32(*row1++); |
| 233 | m[5] = SkGetPackedA32(*row1++); |
| 234 | m[7] = SkGetPackedA32(*row2++); |
| 235 | m[8] = SkGetPackedA32(*row2++); |
| 236 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 237 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 238 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 239 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 240 | shiftMatrixLeft(m); |
| 241 | m[2] = SkGetPackedA32(*row0++); |
| 242 | m[5] = SkGetPackedA32(*row1++); |
| 243 | m[8] = SkGetPackedA32(*row2++); |
| 244 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 245 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 246 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 247 | } |
| 248 | shiftMatrixLeft(m); |
| 249 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 250 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 251 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 255 | int x = left; |
| 256 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 257 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 258 | int m[9]; |
| 259 | m[1] = SkGetPackedA32(*row0++); |
| 260 | m[2] = SkGetPackedA32(*row0++); |
| 261 | m[4] = SkGetPackedA32(*row1++); |
| 262 | m[5] = SkGetPackedA32(*row1++); |
| 263 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 264 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 265 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 266 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 267 | { |
| 268 | shiftMatrixLeft(m); |
| 269 | m[2] = SkGetPackedA32(*row0++); |
| 270 | m[5] = SkGetPackedA32(*row1++); |
| 271 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 272 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 273 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 274 | } |
| 275 | shiftMatrixLeft(m); |
| 276 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 277 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 278 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 279 | } |
| 280 | } |
| 281 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 282 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 283 | SkPoint3 point; |
| 284 | point.fX = buffer.readScalar(); |
| 285 | point.fY = buffer.readScalar(); |
| 286 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 287 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 288 | SkScalarIsFinite(point.fY) && |
| 289 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 290 | return point; |
| 291 | }; |
| 292 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 293 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 294 | buffer.writeScalar(point.fX); |
| 295 | buffer.writeScalar(point.fY); |
| 296 | buffer.writeScalar(point.fZ); |
| 297 | }; |
| 298 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 299 | enum BoundaryMode { |
| 300 | kTopLeft_BoundaryMode, |
| 301 | kTop_BoundaryMode, |
| 302 | kTopRight_BoundaryMode, |
| 303 | kLeft_BoundaryMode, |
| 304 | kInterior_BoundaryMode, |
| 305 | kRight_BoundaryMode, |
| 306 | kBottomLeft_BoundaryMode, |
| 307 | kBottom_BoundaryMode, |
| 308 | kBottomRight_BoundaryMode, |
| 309 | |
| 310 | kBoundaryModeCount, |
| 311 | }; |
| 312 | |
| 313 | class SkLightingImageFilterInternal : public SkLightingImageFilter { |
| 314 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 315 | SkLightingImageFilterInternal(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 316 | SkScalar surfaceScale, |
| 317 | SkImageFilter* input, |
| 318 | const CropRect* cropRect) |
| 319 | : INHERITED(light, surfaceScale, input, cropRect) {} |
| 320 | |
| 321 | #if SK_SUPPORT_GPU |
| 322 | bool canFilterImageGPU() const override { return true; } |
| 323 | bool filterImageGPU(Proxy*, const SkBitmap& src, const Context&, |
| 324 | SkBitmap* result, SkIPoint* offset) const override; |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 325 | virtual GrFragmentProcessor* getFragmentProcessor(GrTexture*, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 326 | const SkMatrix&, |
| 327 | const SkIRect& bounds, |
| 328 | BoundaryMode boundaryMode) const = 0; |
| 329 | #endif |
| 330 | private: |
| 331 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 332 | void drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 333 | GrTexture* src, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 334 | const SkMatrix& matrix, |
| 335 | const GrClip& clip, |
| 336 | const SkRect& dstRect, |
| 337 | BoundaryMode boundaryMode, |
| 338 | const SkIRect& bounds) const; |
| 339 | #endif |
| 340 | typedef SkLightingImageFilter INHERITED; |
| 341 | }; |
| 342 | |
| 343 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 344 | void SkLightingImageFilterInternal::drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 345 | GrTexture* src, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 346 | const SkMatrix& matrix, |
| 347 | const GrClip& clip, |
| 348 | const SkRect& dstRect, |
| 349 | BoundaryMode boundaryMode, |
| 350 | const SkIRect& bounds) const { |
| 351 | SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 352 | GrPaint paint; |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 353 | GrFragmentProcessor* fp = this->getFragmentProcessor(src, matrix, bounds, boundaryMode); |
bsalomon | ac856c9 | 2015-08-27 06:30:17 -0700 | [diff] [blame] | 354 | paint.addColorFragmentProcessor(fp)->unref(); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 355 | drawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | bool SkLightingImageFilterInternal::filterImageGPU(Proxy* proxy, |
| 359 | const SkBitmap& src, |
| 360 | const Context& ctx, |
| 361 | SkBitmap* result, |
| 362 | SkIPoint* offset) const { |
| 363 | SkBitmap input = src; |
| 364 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | 9a70b6e | 2015-10-16 11:35:14 -0700 | [diff] [blame] | 365 | if (!this->filterInputGPU(0, proxy, src, ctx, &input, &srcOffset)) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 366 | return false; |
| 367 | } |
| 368 | SkIRect bounds; |
| 369 | if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) { |
| 370 | return false; |
| 371 | } |
| 372 | SkRect dstRect = SkRect::MakeWH(SkIntToScalar(bounds.width()), |
| 373 | SkIntToScalar(bounds.height())); |
| 374 | GrTexture* srcTexture = input.getTexture(); |
| 375 | GrContext* context = srcTexture->getContext(); |
| 376 | |
| 377 | GrSurfaceDesc desc; |
| 378 | desc.fFlags = kRenderTarget_GrSurfaceFlag, |
| 379 | desc.fWidth = bounds.width(); |
| 380 | desc.fHeight = bounds.height(); |
| 381 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 382 | |
bsalomon | eae6200 | 2015-07-31 13:59:30 -0700 | [diff] [blame] | 383 | SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc)); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 384 | if (!dst) { |
| 385 | return false; |
| 386 | } |
| 387 | |
| 388 | // setup new clip |
| 389 | GrClip clip(dstRect); |
| 390 | |
| 391 | offset->fX = bounds.left(); |
| 392 | offset->fY = bounds.top(); |
| 393 | SkMatrix matrix(ctx.ctm()); |
| 394 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 395 | bounds.offset(-srcOffset); |
| 396 | SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1); |
| 397 | SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1); |
| 398 | SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1); |
| 399 | SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2); |
| 400 | SkRect interior = dstRect.makeInset(1, 1); |
| 401 | SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2); |
| 402 | SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1); |
| 403 | SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1); |
| 404 | SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 405 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 406 | SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget())); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 407 | if (!drawContext) { |
| 408 | return false; |
| 409 | } |
| 410 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 411 | this->drawRect(drawContext, srcTexture, matrix, clip, topLeft, kTopLeft_BoundaryMode, bounds); |
| 412 | this->drawRect(drawContext, srcTexture, matrix, clip, top, kTop_BoundaryMode, bounds); |
| 413 | this->drawRect(drawContext, srcTexture, matrix, clip, topRight, kTopRight_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 414 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 415 | this->drawRect(drawContext, srcTexture, matrix, clip, left, kLeft_BoundaryMode, bounds); |
| 416 | this->drawRect(drawContext, srcTexture, matrix, clip, interior, kInterior_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 417 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 418 | this->drawRect(drawContext, srcTexture, matrix, clip, right, kRight_BoundaryMode, bounds); |
| 419 | this->drawRect(drawContext, srcTexture, matrix, clip, bottomLeft, kBottomLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 420 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 421 | this->drawRect(drawContext, srcTexture, matrix, clip, bottom, kBottom_BoundaryMode, bounds); |
| 422 | this->drawRect(drawContext, srcTexture, matrix, clip, bottomRight, |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 423 | kBottomRight_BoundaryMode, bounds); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 424 | WrapTexture(dst, bounds.width(), bounds.height(), result); |
| 425 | return true; |
| 426 | } |
| 427 | #endif |
| 428 | |
| 429 | class SkDiffuseLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 430 | public: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 431 | static SkImageFilter* Create(SkImageFilterLight* light, SkScalar surfaceScale, |
| 432 | SkScalar kd, SkImageFilter*, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 433 | const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 434 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 435 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 436 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 437 | SkScalar kd() const { return fKD; } |
| 438 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 439 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 440 | SkDiffuseLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 441 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 442 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 443 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 444 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 445 | #if SK_SUPPORT_GPU |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 446 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, const SkIRect& bounds, |
| 447 | BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 448 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 449 | |
| 450 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 451 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 452 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 453 | SkScalar fKD; |
| 454 | }; |
| 455 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 456 | class SkSpecularLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 457 | public: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 458 | static SkImageFilter* Create(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 459 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 460 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 461 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 462 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 463 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 464 | SkScalar ks() const { return fKS; } |
| 465 | SkScalar shininess() const { return fShininess; } |
| 466 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 467 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 468 | SkSpecularLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 469 | SkScalar shininess, SkImageFilter* input, const CropRect*); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 470 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 471 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 472 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 473 | #if SK_SUPPORT_GPU |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 474 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, const SkIRect& bounds, |
| 475 | BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 476 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 477 | |
| 478 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 479 | SkScalar fKS; |
| 480 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 481 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 482 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 483 | }; |
| 484 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 485 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 486 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 487 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 488 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 489 | GrLightingEffect(GrTexture* texture, const SkImageFilterLight* light, SkScalar surfaceScale, |
| 490 | const SkMatrix& matrix, BoundaryMode boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 491 | virtual ~GrLightingEffect(); |
| 492 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 493 | const SkImageFilterLight* light() const { return fLight; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 494 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 495 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 496 | BoundaryMode boundaryMode() const { return fBoundaryMode; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 497 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 498 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 499 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 500 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 501 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 502 | // lighting shaders are complicated. We just throw up our hands. |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 503 | inout->mulByUnknownFourComponents(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 504 | } |
| 505 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 506 | private: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 507 | const SkImageFilterLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 508 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 509 | SkMatrix fFilterMatrix; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 510 | BoundaryMode fBoundaryMode; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 511 | |
| 512 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 513 | }; |
| 514 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 515 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 516 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 517 | static GrFragmentProcessor* Create(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 518 | const SkImageFilterLight* light, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 519 | SkScalar surfaceScale, |
| 520 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 521 | SkScalar kd, |
| 522 | BoundaryMode boundaryMode) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 523 | return new GrDiffuseLightingEffect(texture, light, surfaceScale, matrix, kd, boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 524 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 525 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 526 | const char* name() const override { return "DiffuseLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 527 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 528 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 529 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 530 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 531 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 532 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 533 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 534 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 535 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 536 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 537 | GrDiffuseLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 538 | const SkImageFilterLight* light, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 539 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 540 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 541 | SkScalar kd, |
| 542 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 543 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 544 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 545 | typedef GrLightingEffect INHERITED; |
| 546 | SkScalar fKD; |
| 547 | }; |
| 548 | |
| 549 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 550 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 551 | static GrFragmentProcessor* Create(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 552 | const SkImageFilterLight* light, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 553 | SkScalar surfaceScale, |
| 554 | const SkMatrix& matrix, |
| 555 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 556 | SkScalar shininess, |
| 557 | BoundaryMode boundaryMode) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 558 | return new GrSpecularLightingEffect(texture, light, surfaceScale, matrix, ks, shininess, |
| 559 | boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 560 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 561 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 562 | const char* name() const override { return "SpecularLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 563 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 564 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 565 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 566 | SkScalar ks() const { return fKS; } |
| 567 | SkScalar shininess() const { return fShininess; } |
| 568 | |
| 569 | private: |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 570 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 571 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 572 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 573 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 574 | GrSpecularLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 575 | const SkImageFilterLight* light, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 576 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 577 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 578 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 579 | SkScalar shininess, |
| 580 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 581 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 582 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 583 | typedef GrLightingEffect INHERITED; |
| 584 | SkScalar fKS; |
| 585 | SkScalar fShininess; |
| 586 | }; |
| 587 | |
| 588 | /////////////////////////////////////////////////////////////////////////////// |
| 589 | |
| 590 | class GrGLLight { |
| 591 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 592 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 593 | |
| 594 | /** |
| 595 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 596 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 597 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 598 | void emitLightColorUniform(GrGLFPBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 599 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 600 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 601 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 602 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 603 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 604 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 605 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 606 | * and so this function only needs to be overridden if the light color varies spatially. |
| 607 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 608 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) = 0; |
| 609 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 610 | |
| 611 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 612 | // INHERITED::setData(). |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 613 | virtual void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 614 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 615 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 616 | /** |
| 617 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 618 | * function. |
| 619 | */ |
| 620 | UniformHandle lightColorUni() const { return fColorUni; } |
| 621 | |
| 622 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 623 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 624 | |
| 625 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 626 | }; |
| 627 | |
| 628 | /////////////////////////////////////////////////////////////////////////////// |
| 629 | |
| 630 | class GrGLDistantLight : public GrGLLight { |
| 631 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 632 | virtual ~GrGLDistantLight() {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 633 | void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 634 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 635 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 636 | private: |
| 637 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 638 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 639 | }; |
| 640 | |
| 641 | /////////////////////////////////////////////////////////////////////////////// |
| 642 | |
| 643 | class GrGLPointLight : public GrGLLight { |
| 644 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 645 | virtual ~GrGLPointLight() {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 646 | void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 647 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 648 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 649 | private: |
| 650 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 651 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 652 | }; |
| 653 | |
| 654 | /////////////////////////////////////////////////////////////////////////////// |
| 655 | |
| 656 | class GrGLSpotLight : public GrGLLight { |
| 657 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 658 | virtual ~GrGLSpotLight() {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 659 | void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 660 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
| 661 | void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 662 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 663 | private: |
| 664 | typedef GrGLLight INHERITED; |
| 665 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 666 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 667 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 668 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 669 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 670 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 671 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 672 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 673 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 674 | #else |
| 675 | |
| 676 | class GrGLLight; |
| 677 | |
| 678 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 679 | |
| 680 | }; |
| 681 | |
| 682 | /////////////////////////////////////////////////////////////////////////////// |
| 683 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 684 | class SkImageFilterLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 685 | public: |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 686 | |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 687 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 688 | enum LightType { |
| 689 | kDistant_LightType, |
| 690 | kPoint_LightType, |
| 691 | kSpot_LightType, |
| 692 | }; |
| 693 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 694 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 695 | virtual GrGLLight* createGLLight() const = 0; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 696 | virtual bool isEqual(const SkImageFilterLight& other) const { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 697 | return fColor == other.fColor; |
| 698 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 699 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 700 | virtual bool requiresFragmentPosition() const = 0; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 701 | virtual SkImageFilterLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 702 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 703 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 704 | void flattenLight(SkWriteBuffer& buffer) const; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 705 | static SkImageFilterLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 706 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 707 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 708 | SkImageFilterLight(SkColor color) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 709 | fColor = SkPoint3::Make(SkIntToScalar(SkColorGetR(color)), |
| 710 | SkIntToScalar(SkColorGetG(color)), |
| 711 | SkIntToScalar(SkColorGetB(color))); |
| 712 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 713 | SkImageFilterLight(const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 714 | : fColor(color) {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 715 | SkImageFilterLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 716 | fColor = readPoint3(buffer); |
| 717 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 718 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 719 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 720 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 721 | |
| 722 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 723 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 724 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 725 | }; |
| 726 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 727 | /////////////////////////////////////////////////////////////////////////////// |
| 728 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 729 | class SkDistantLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 730 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 731 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 732 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 733 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 734 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 735 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 736 | return fDirection; |
| 737 | }; |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 738 | const SkPoint3& lightColor(const SkPoint3&) const { return this->color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 739 | LightType type() const override { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 740 | const SkPoint3& direction() const { return fDirection; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 741 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 742 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 743 | return new GrGLDistantLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 744 | #else |
| 745 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 746 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 747 | #endif |
| 748 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 749 | bool requiresFragmentPosition() const override { return false; } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 750 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 751 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 752 | if (other.type() != kDistant_LightType) { |
| 753 | return false; |
| 754 | } |
| 755 | |
| 756 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 757 | return INHERITED::isEqual(other) && |
| 758 | fDirection == o.fDirection; |
| 759 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 760 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 761 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 762 | fDirection = readPoint3(buffer); |
| 763 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 764 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 765 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 766 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 767 | : INHERITED(color), fDirection(direction) { |
| 768 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 769 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 770 | return new SkDistantLight(direction(), color()); |
| 771 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 772 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 773 | writePoint3(fDirection, buffer); |
| 774 | } |
| 775 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 776 | private: |
| 777 | SkPoint3 fDirection; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 778 | |
| 779 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 780 | }; |
| 781 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 782 | /////////////////////////////////////////////////////////////////////////////// |
| 783 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 784 | class SkPointLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 785 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 786 | SkPointLight(const SkPoint3& location, SkColor color) |
| 787 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 788 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 789 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 790 | SkPoint3 direction = SkPoint3::Make(fLocation.fX - SkIntToScalar(x), |
| 791 | fLocation.fY - SkIntToScalar(y), |
| 792 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), |
| 793 | surfaceScale)); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 794 | fast_normalize(&direction); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 795 | return direction; |
| 796 | }; |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 797 | const SkPoint3& lightColor(const SkPoint3&) const { return this->color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 798 | LightType type() const override { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 799 | const SkPoint3& location() const { return fLocation; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 800 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 801 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 802 | return new GrGLPointLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 803 | #else |
| 804 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 805 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 806 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 807 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 808 | bool requiresFragmentPosition() const override { return true; } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 809 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 810 | if (other.type() != kPoint_LightType) { |
| 811 | return false; |
| 812 | } |
| 813 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 814 | return INHERITED::isEqual(other) && |
| 815 | fLocation == o.fLocation; |
| 816 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 817 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 818 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 819 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 820 | // Use X scale and Y scale on Z and average the result |
| 821 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 822 | matrix.mapVectors(&locationZ, 1); |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 823 | SkPoint3 location = SkPoint3::Make(location2.fX, |
| 824 | location2.fY, |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 825 | SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 826 | return new SkPointLight(location, color()); |
| 827 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 828 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 829 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 830 | fLocation = readPoint3(buffer); |
| 831 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 832 | |
| 833 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 834 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 835 | : INHERITED(color), fLocation(location) {} |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 836 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 837 | writePoint3(fLocation, buffer); |
| 838 | } |
| 839 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 840 | private: |
| 841 | SkPoint3 fLocation; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 842 | |
| 843 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 844 | }; |
| 845 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 846 | /////////////////////////////////////////////////////////////////////////////// |
| 847 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 848 | class SkSpotLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 849 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 850 | SkSpotLight(const SkPoint3& location, |
| 851 | const SkPoint3& target, |
| 852 | SkScalar specularExponent, |
| 853 | SkScalar cutoffAngle, |
| 854 | SkColor color) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 855 | : INHERITED(color), |
| 856 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 857 | fTarget(target), |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 858 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 859 | { |
| 860 | fS = target - location; |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 861 | fast_normalize(&fS); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 862 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 863 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 864 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 865 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 866 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 867 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 868 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 869 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 870 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 871 | // Use X scale and Y scale on Z and average the result |
| 872 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 873 | matrix.mapVectors(&locationZ, 1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 874 | SkPoint3 location = SkPoint3::Make(location2.fX, location2.fY, |
| 875 | SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 876 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 877 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 878 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 879 | matrix.mapVectors(&targetZ, 1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 880 | SkPoint3 target = SkPoint3::Make(target2.fX, target2.fY, |
| 881 | SkScalarAve(targetZ.fX, targetZ.fY)); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 882 | SkPoint3 s = target - location; |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 883 | fast_normalize(&s); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 884 | return new SkSpotLight(location, |
| 885 | target, |
| 886 | fSpecularExponent, |
| 887 | fCosOuterConeAngle, |
| 888 | fCosInnerConeAngle, |
| 889 | fConeScale, |
| 890 | s, |
| 891 | color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 892 | } |
| 893 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 894 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 895 | SkPoint3 direction = SkPoint3::Make(fLocation.fX - SkIntToScalar(x), |
| 896 | fLocation.fY - SkIntToScalar(y), |
| 897 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), |
| 898 | surfaceScale)); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 899 | fast_normalize(&direction); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 900 | return direction; |
| 901 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 902 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 903 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 904 | SkScalar scale = 0; |
| 905 | if (cosAngle >= fCosOuterConeAngle) { |
| 906 | scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 907 | if (cosAngle < fCosInnerConeAngle) { |
| 908 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
| 909 | scale *= fConeScale; |
| 910 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 911 | } |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 912 | return this->color().makeScale(scale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 913 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 914 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 915 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 916 | return new GrGLSpotLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 917 | #else |
| 918 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 919 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 920 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 921 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 922 | bool requiresFragmentPosition() const override { return true; } |
| 923 | LightType type() const override { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 924 | const SkPoint3& location() const { return fLocation; } |
| 925 | const SkPoint3& target() const { return fTarget; } |
| 926 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 927 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 928 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 929 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 930 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 931 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 932 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 933 | fLocation = readPoint3(buffer); |
| 934 | fTarget = readPoint3(buffer); |
| 935 | fSpecularExponent = buffer.readScalar(); |
| 936 | fCosOuterConeAngle = buffer.readScalar(); |
| 937 | fCosInnerConeAngle = buffer.readScalar(); |
| 938 | fConeScale = buffer.readScalar(); |
| 939 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 940 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 941 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 942 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 943 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 944 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 945 | protected: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 946 | SkSpotLight(const SkPoint3& location, |
| 947 | const SkPoint3& target, |
| 948 | SkScalar specularExponent, |
| 949 | SkScalar cosOuterConeAngle, |
| 950 | SkScalar cosInnerConeAngle, |
| 951 | SkScalar coneScale, |
| 952 | const SkPoint3& s, |
| 953 | const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 954 | : INHERITED(color), |
| 955 | fLocation(location), |
| 956 | fTarget(target), |
| 957 | fSpecularExponent(specularExponent), |
| 958 | fCosOuterConeAngle(cosOuterConeAngle), |
| 959 | fCosInnerConeAngle(cosInnerConeAngle), |
| 960 | fConeScale(coneScale), |
| 961 | fS(s) |
| 962 | { |
| 963 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 964 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 965 | writePoint3(fLocation, buffer); |
| 966 | writePoint3(fTarget, buffer); |
| 967 | buffer.writeScalar(fSpecularExponent); |
| 968 | buffer.writeScalar(fCosOuterConeAngle); |
| 969 | buffer.writeScalar(fCosInnerConeAngle); |
| 970 | buffer.writeScalar(fConeScale); |
| 971 | writePoint3(fS, buffer); |
| 972 | } |
| 973 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 974 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 975 | if (other.type() != kSpot_LightType) { |
| 976 | return false; |
| 977 | } |
| 978 | |
| 979 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 980 | return INHERITED::isEqual(other) && |
| 981 | fLocation == o.fLocation && |
| 982 | fTarget == o.fTarget && |
| 983 | fSpecularExponent == o.fSpecularExponent && |
| 984 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 985 | } |
| 986 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 987 | private: |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 988 | static const SkScalar kSpecularExponentMin; |
| 989 | static const SkScalar kSpecularExponentMax; |
| 990 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 991 | SkPoint3 fLocation; |
| 992 | SkPoint3 fTarget; |
| 993 | SkScalar fSpecularExponent; |
| 994 | SkScalar fCosOuterConeAngle; |
| 995 | SkScalar fCosInnerConeAngle; |
| 996 | SkScalar fConeScale; |
| 997 | SkPoint3 fS; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 998 | |
| 999 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1000 | }; |
| 1001 | |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 1002 | // According to the spec, the specular term should be in the range [1, 128] : |
| 1003 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
| 1004 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 1005 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
| 1006 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1007 | /////////////////////////////////////////////////////////////////////////////// |
| 1008 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1009 | void SkImageFilterLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1010 | // Write type first, then baseclass, then subclass. |
| 1011 | buffer.writeInt(this->type()); |
| 1012 | writePoint3(fColor, buffer); |
| 1013 | this->onFlattenLight(buffer); |
| 1014 | } |
| 1015 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1016 | /*static*/ SkImageFilterLight* SkImageFilterLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1017 | // Read type first. |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1018 | const SkImageFilterLight::LightType type = (SkImageFilterLight::LightType)buffer.readInt(); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1019 | switch (type) { |
| 1020 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 1021 | // then subclass, same order as flattenLight. |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1022 | case SkImageFilterLight::kDistant_LightType: |
| 1023 | return new SkDistantLight(buffer); |
| 1024 | case SkImageFilterLight::kPoint_LightType: |
| 1025 | return new SkPointLight(buffer); |
| 1026 | case SkImageFilterLight::kSpot_LightType: |
| 1027 | return new SkSpotLight(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1028 | default: |
| 1029 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1030 | buffer.validate(false); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1031 | return nullptr; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1032 | } |
| 1033 | } |
| 1034 | /////////////////////////////////////////////////////////////////////////////// |
| 1035 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1036 | SkLightingImageFilter::SkLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1037 | SkImageFilter* input, const CropRect* cropRect) |
| 1038 | : INHERITED(1, &input, cropRect) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1039 | , fLight(SkRef(light)) |
| 1040 | , fSurfaceScale(surfaceScale / 255) |
| 1041 | {} |
| 1042 | |
| 1043 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 1044 | SkColor lightColor, |
| 1045 | SkScalar surfaceScale, |
| 1046 | SkScalar kd, |
| 1047 | SkImageFilter* input, |
| 1048 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1049 | SkAutoTUnref<SkImageFilterLight> light(new SkDistantLight(direction, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1050 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1051 | } |
| 1052 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1053 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 1054 | SkColor lightColor, |
| 1055 | SkScalar surfaceScale, |
| 1056 | SkScalar kd, |
| 1057 | SkImageFilter* input, |
| 1058 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1059 | SkAutoTUnref<SkImageFilterLight> light(new SkPointLight(location, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1060 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1061 | } |
| 1062 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1063 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 1064 | const SkPoint3& target, |
| 1065 | SkScalar specularExponent, |
| 1066 | SkScalar cutoffAngle, |
| 1067 | SkColor lightColor, |
| 1068 | SkScalar surfaceScale, |
| 1069 | SkScalar kd, |
| 1070 | SkImageFilter* input, |
| 1071 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1072 | SkAutoTUnref<SkImageFilterLight> light( |
| 1073 | new SkSpotLight(location, target, specularExponent, cutoffAngle, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1074 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1075 | } |
| 1076 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1077 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 1078 | SkColor lightColor, |
| 1079 | SkScalar surfaceScale, |
| 1080 | SkScalar ks, |
| 1081 | SkScalar shine, |
| 1082 | SkImageFilter* input, |
| 1083 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1084 | SkAutoTUnref<SkImageFilterLight> light(new SkDistantLight(direction, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1085 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1086 | } |
| 1087 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1088 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 1089 | SkColor lightColor, |
| 1090 | SkScalar surfaceScale, |
| 1091 | SkScalar ks, |
| 1092 | SkScalar shine, |
| 1093 | SkImageFilter* input, |
| 1094 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1095 | SkAutoTUnref<SkImageFilterLight> light(new SkPointLight(location, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1096 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1097 | } |
| 1098 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1099 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 1100 | const SkPoint3& target, |
| 1101 | SkScalar specularExponent, |
| 1102 | SkScalar cutoffAngle, |
| 1103 | SkColor lightColor, |
| 1104 | SkScalar surfaceScale, |
| 1105 | SkScalar ks, |
| 1106 | SkScalar shine, |
| 1107 | SkImageFilter* input, |
| 1108 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1109 | SkAutoTUnref<SkImageFilterLight> light( |
| 1110 | new SkSpotLight(location, target, specularExponent, cutoffAngle, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1111 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1112 | } |
| 1113 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1114 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1115 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1116 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1117 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1118 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1119 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1120 | } |
| 1121 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1122 | /////////////////////////////////////////////////////////////////////////////// |
| 1123 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1124 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkImageFilterLight* light, |
| 1125 | SkScalar surfaceScale, |
| 1126 | SkScalar kd, |
| 1127 | SkImageFilter* input, |
| 1128 | const CropRect* cropRect) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1129 | if (nullptr == light) { |
| 1130 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1131 | } |
| 1132 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1133 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1134 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1135 | // According to the spec, kd can be any non-negative number : |
| 1136 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1137 | if (kd < 0) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1138 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1139 | } |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1140 | return new SkDiffuseLightingImageFilter(light, surfaceScale, kd, input, cropRect); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1141 | } |
| 1142 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1143 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1144 | SkScalar surfaceScale, |
| 1145 | SkScalar kd, |
| 1146 | SkImageFilter* input, |
| 1147 | const CropRect* cropRect) |
| 1148 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1149 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1150 | { |
| 1151 | } |
| 1152 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1153 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1154 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1155 | SkAutoTUnref<SkImageFilterLight> light(SkImageFilterLight::UnflattenLight(buffer)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1156 | SkScalar surfaceScale = buffer.readScalar(); |
| 1157 | SkScalar kd = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1158 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1159 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1160 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1161 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1162 | this->INHERITED::flatten(buffer); |
| 1163 | buffer.writeScalar(fKD); |
| 1164 | } |
| 1165 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1166 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1167 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1168 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1169 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1170 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1171 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1172 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | b9519f8 | 2015-10-15 12:15:13 -0700 | [diff] [blame] | 1173 | if (!this->filterInput(0, proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1174 | return false; |
| 1175 | } |
| 1176 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1177 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1178 | return false; |
| 1179 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1180 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1181 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1182 | return false; |
| 1183 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1184 | |
| 1185 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1186 | return false; |
| 1187 | } |
| 1188 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1189 | SkAutoLockPixels alp(src); |
| 1190 | if (!src.getPixels()) { |
| 1191 | return false; |
| 1192 | } |
| 1193 | |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1194 | SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds.width(), bounds.height())); |
| 1195 | if (!device) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1196 | return false; |
| 1197 | } |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1198 | *dst = device->accessBitmap(false); |
| 1199 | SkAutoLockPixels alp_dst(*dst); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1200 | |
senorblanco | 7b7ecfc | 2015-08-26 14:26:40 -0700 | [diff] [blame] | 1201 | SkMatrix matrix(ctx.ctm()); |
| 1202 | matrix.postTranslate(SkIntToScalar(-srcOffset.x()), SkIntToScalar(-srcOffset.y())); |
| 1203 | SkAutoTUnref<SkImageFilterLight> transformedLight(light()->transform(matrix)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1204 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1205 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1206 | offset->fX = bounds.left(); |
| 1207 | offset->fY = bounds.top(); |
| 1208 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1209 | switch (transformedLight->type()) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1210 | case SkImageFilterLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1211 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, |
| 1212 | transformedLight, |
| 1213 | src, |
| 1214 | dst, |
| 1215 | surfaceScale(), |
| 1216 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1217 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1218 | case SkImageFilterLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1219 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, |
| 1220 | transformedLight, |
| 1221 | src, |
| 1222 | dst, |
| 1223 | surfaceScale(), |
| 1224 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1225 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1226 | case SkImageFilterLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1227 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, |
| 1228 | transformedLight, |
| 1229 | src, |
| 1230 | dst, |
| 1231 | surfaceScale(), |
| 1232 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1233 | break; |
| 1234 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1235 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1236 | return true; |
| 1237 | } |
| 1238 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1239 | #ifndef SK_IGNORE_TO_STRING |
| 1240 | void SkDiffuseLightingImageFilter::toString(SkString* str) const { |
| 1241 | str->appendf("SkDiffuseLightingImageFilter: ("); |
| 1242 | str->appendf("kD: %f\n", fKD); |
| 1243 | str->append(")"); |
| 1244 | } |
| 1245 | #endif |
| 1246 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1247 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1248 | GrFragmentProcessor* SkDiffuseLightingImageFilter::getFragmentProcessor( |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1249 | GrTexture* texture, |
| 1250 | const SkMatrix& matrix, |
| 1251 | const SkIRect&, |
| 1252 | BoundaryMode boundaryMode |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1253 | ) const { |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1254 | SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255)); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1255 | return GrDiffuseLightingEffect::Create(texture, this->light(), scale, matrix, this->kd(), |
| 1256 | boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1257 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1258 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1259 | |
| 1260 | /////////////////////////////////////////////////////////////////////////////// |
| 1261 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1262 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkImageFilterLight* light, |
| 1263 | SkScalar surfaceScale, |
| 1264 | SkScalar ks, |
| 1265 | SkScalar shininess, |
| 1266 | SkImageFilter* input, |
| 1267 | const CropRect* cropRect) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1268 | if (nullptr == light) { |
| 1269 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1270 | } |
| 1271 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1272 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1273 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1274 | // According to the spec, ks can be any non-negative number : |
| 1275 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1276 | if (ks < 0) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1277 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1278 | } |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1279 | return new SkSpecularLightingImageFilter(light, surfaceScale, ks, shininess, input, cropRect); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1280 | } |
| 1281 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1282 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1283 | SkScalar surfaceScale, |
| 1284 | SkScalar ks, |
| 1285 | SkScalar shininess, |
| 1286 | SkImageFilter* input, |
| 1287 | const CropRect* cropRect) |
| 1288 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1289 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1290 | fShininess(shininess) |
| 1291 | { |
| 1292 | } |
| 1293 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1294 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1295 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1296 | SkAutoTUnref<SkImageFilterLight> light(SkImageFilterLight::UnflattenLight(buffer)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1297 | SkScalar surfaceScale = buffer.readScalar(); |
| 1298 | SkScalar ks = buffer.readScalar(); |
| 1299 | SkScalar shine = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1300 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1301 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1302 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1303 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1304 | this->INHERITED::flatten(buffer); |
| 1305 | buffer.writeScalar(fKS); |
| 1306 | buffer.writeScalar(fShininess); |
| 1307 | } |
| 1308 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1309 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1310 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1311 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1312 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1313 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1314 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1315 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | b9519f8 | 2015-10-15 12:15:13 -0700 | [diff] [blame] | 1316 | if (!this->filterInput(0, proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1317 | return false; |
| 1318 | } |
| 1319 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1320 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1321 | return false; |
| 1322 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1323 | |
| 1324 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1325 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1326 | return false; |
| 1327 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1328 | |
| 1329 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1330 | return false; |
| 1331 | } |
| 1332 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1333 | SkAutoLockPixels alp(src); |
| 1334 | if (!src.getPixels()) { |
| 1335 | return false; |
| 1336 | } |
| 1337 | |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1338 | SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds.width(), bounds.height())); |
| 1339 | if (!device) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1340 | return false; |
| 1341 | } |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1342 | *dst = device->accessBitmap(false); |
| 1343 | SkAutoLockPixels alp_dst(*dst); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1344 | |
| 1345 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1346 | offset->fX = bounds.left(); |
| 1347 | offset->fY = bounds.top(); |
senorblanco | 7b7ecfc | 2015-08-26 14:26:40 -0700 | [diff] [blame] | 1348 | SkMatrix matrix(ctx.ctm()); |
| 1349 | matrix.postTranslate(SkIntToScalar(-srcOffset.x()), SkIntToScalar(-srcOffset.y())); |
| 1350 | SkAutoTUnref<SkImageFilterLight> transformedLight(light()->transform(matrix)); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1351 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1352 | switch (transformedLight->type()) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1353 | case SkImageFilterLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1354 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, |
| 1355 | transformedLight, |
| 1356 | src, |
| 1357 | dst, |
| 1358 | surfaceScale(), |
| 1359 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1360 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1361 | case SkImageFilterLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1362 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, |
| 1363 | transformedLight, |
| 1364 | src, |
| 1365 | dst, |
| 1366 | surfaceScale(), |
| 1367 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1368 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1369 | case SkImageFilterLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1370 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, |
| 1371 | transformedLight, |
| 1372 | src, |
| 1373 | dst, |
| 1374 | surfaceScale(), |
| 1375 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1376 | break; |
| 1377 | } |
| 1378 | return true; |
| 1379 | } |
| 1380 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1381 | #ifndef SK_IGNORE_TO_STRING |
| 1382 | void SkSpecularLightingImageFilter::toString(SkString* str) const { |
| 1383 | str->appendf("SkSpecularLightingImageFilter: ("); |
| 1384 | str->appendf("kS: %f shininess: %f", fKS, fShininess); |
| 1385 | str->append(")"); |
| 1386 | } |
| 1387 | #endif |
| 1388 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1389 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1390 | GrFragmentProcessor* SkSpecularLightingImageFilter::getFragmentProcessor( |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1391 | GrTexture* texture, |
| 1392 | const SkMatrix& matrix, |
| 1393 | const SkIRect&, |
| 1394 | BoundaryMode boundaryMode) const { |
| 1395 | SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255)); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1396 | return GrSpecularLightingEffect::Create(texture, this->light(), scale, matrix, this->ks(), |
| 1397 | this->shininess(), boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1398 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1399 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1400 | |
| 1401 | /////////////////////////////////////////////////////////////////////////////// |
| 1402 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1403 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1404 | |
| 1405 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1406 | SkPoint3 random_point3(SkRandom* random) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1407 | return SkPoint3::Make(SkScalarToFloat(random->nextSScalar1()), |
| 1408 | SkScalarToFloat(random->nextSScalar1()), |
| 1409 | SkScalarToFloat(random->nextSScalar1())); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1410 | } |
| 1411 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1412 | SkImageFilterLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1413 | int type = random->nextULessThan(3); |
| 1414 | switch (type) { |
| 1415 | case 0: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1416 | return new SkDistantLight(random_point3(random), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1417 | } |
| 1418 | case 1: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1419 | return new SkPointLight(random_point3(random), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1420 | } |
| 1421 | case 2: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1422 | return new SkSpotLight(random_point3(random), random_point3(random), |
| 1423 | random->nextUScalar1(), random->nextUScalar1(), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1424 | } |
| 1425 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1426 | SkFAIL("Unexpected value."); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1427 | return nullptr; |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1428 | } |
| 1429 | } |
| 1430 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1431 | SkString emitNormalFunc(BoundaryMode mode, |
| 1432 | const char* pointToNormalName, |
| 1433 | const char* sobelFuncName) { |
| 1434 | SkString result; |
| 1435 | switch (mode) { |
| 1436 | case kTopLeft_BoundaryMode: |
| 1437 | result.printf("\treturn %s(%s(0.0, 0.0, m[4], m[5], m[7], m[8], %g),\n" |
| 1438 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1439 | "\t surfaceScale);\n", |
| 1440 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1441 | sobelFuncName, gTwoThirds); |
| 1442 | break; |
| 1443 | case kTop_BoundaryMode: |
| 1444 | result.printf("\treturn %s(%s(0.0, 0.0, m[3], m[5], m[6], m[8], %g),\n" |
| 1445 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1446 | "\t surfaceScale);\n", |
| 1447 | pointToNormalName, sobelFuncName, gOneThird, |
| 1448 | sobelFuncName, gOneHalf); |
| 1449 | break; |
| 1450 | case kTopRight_BoundaryMode: |
| 1451 | result.printf("\treturn %s(%s( 0.0, 0.0, m[3], m[4], m[6], m[7], %g),\n" |
| 1452 | "\t %s(m[3], m[6], m[4], m[7], 0.0, 0.0, %g),\n" |
| 1453 | "\t surfaceScale);\n", |
| 1454 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1455 | sobelFuncName, gTwoThirds); |
| 1456 | break; |
| 1457 | case kLeft_BoundaryMode: |
| 1458 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], m[7], m[8], %g),\n" |
| 1459 | "\t %s( 0.0, 0.0, m[1], m[7], m[2], m[8], %g),\n" |
| 1460 | "\t surfaceScale);\n", |
| 1461 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1462 | sobelFuncName, gOneThird); |
| 1463 | break; |
| 1464 | case kInterior_BoundaryMode: |
| 1465 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], %g),\n" |
| 1466 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], %g),\n" |
| 1467 | "\t surfaceScale);\n", |
| 1468 | pointToNormalName, sobelFuncName, gOneQuarter, |
| 1469 | sobelFuncName, gOneQuarter); |
| 1470 | break; |
| 1471 | case kRight_BoundaryMode: |
| 1472 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], m[6], m[7], %g),\n" |
| 1473 | "\t %s(m[0], m[6], m[1], m[7], 0.0, 0.0, %g),\n" |
| 1474 | "\t surfaceScale);\n", |
| 1475 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1476 | sobelFuncName, gOneThird); |
| 1477 | break; |
| 1478 | case kBottomLeft_BoundaryMode: |
| 1479 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], 0.0, 0.0, %g),\n" |
| 1480 | "\t %s( 0.0, 0.0, m[1], m[4], m[2], m[5], %g),\n" |
| 1481 | "\t surfaceScale);\n", |
| 1482 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1483 | sobelFuncName, gTwoThirds); |
| 1484 | break; |
| 1485 | case kBottom_BoundaryMode: |
| 1486 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], 0.0, 0.0, %g),\n" |
| 1487 | "\t %s(m[0], m[3], m[1], m[4], m[2], m[5], %g),\n" |
| 1488 | "\t surfaceScale);\n", |
| 1489 | pointToNormalName, sobelFuncName, gOneThird, |
| 1490 | sobelFuncName, gOneHalf); |
| 1491 | break; |
| 1492 | case kBottomRight_BoundaryMode: |
| 1493 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], 0.0, 0.0, %g),\n" |
| 1494 | "\t %s(m[0], m[3], m[1], m[4], 0.0, 0.0, %g),\n" |
| 1495 | "\t surfaceScale);\n", |
| 1496 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1497 | sobelFuncName, gTwoThirds); |
| 1498 | break; |
| 1499 | default: |
| 1500 | SkASSERT(false); |
| 1501 | break; |
| 1502 | } |
| 1503 | return result; |
| 1504 | } |
| 1505 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1506 | } |
| 1507 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1508 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1509 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1510 | GrGLLightingEffect(const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1511 | virtual ~GrGLLightingEffect(); |
| 1512 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1513 | void emitCode(EmitArgs&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1514 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1515 | static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1516 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1517 | protected: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1518 | /** |
| 1519 | * Subclasses of GrGLLightingEffect must call INHERITED::onSetData(); |
| 1520 | */ |
| 1521 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; |
| 1522 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1523 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1524 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1525 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1526 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1527 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1528 | UniformHandle fImageIncrementUni; |
| 1529 | UniformHandle fSurfaceScaleUni; |
| 1530 | GrGLLight* fLight; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1531 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1532 | }; |
| 1533 | |
| 1534 | /////////////////////////////////////////////////////////////////////////////// |
| 1535 | |
| 1536 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1537 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1538 | GrGLDiffuseLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1539 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1540 | |
| 1541 | protected: |
| 1542 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1543 | |
| 1544 | private: |
| 1545 | typedef GrGLLightingEffect INHERITED; |
| 1546 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1547 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1548 | }; |
| 1549 | |
| 1550 | /////////////////////////////////////////////////////////////////////////////// |
| 1551 | |
| 1552 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1553 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1554 | GrGLSpecularLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1555 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1556 | |
| 1557 | protected: |
| 1558 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1559 | |
| 1560 | private: |
| 1561 | typedef GrGLLightingEffect INHERITED; |
| 1562 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1563 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1564 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1565 | }; |
| 1566 | |
| 1567 | /////////////////////////////////////////////////////////////////////////////// |
| 1568 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1569 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1570 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1571 | SkScalar surfaceScale, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1572 | const SkMatrix& matrix, |
| 1573 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1574 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1575 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1576 | , fSurfaceScale(surfaceScale) |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1577 | , fFilterMatrix(matrix) |
| 1578 | , fBoundaryMode(boundaryMode) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1579 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1580 | if (light->requiresFragmentPosition()) { |
| 1581 | this->setWillReadFragmentPosition(); |
| 1582 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1583 | } |
| 1584 | |
| 1585 | GrLightingEffect::~GrLightingEffect() { |
| 1586 | fLight->unref(); |
| 1587 | } |
| 1588 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1589 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1590 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 1591 | return fLight->isEqual(*s.fLight) && |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1592 | fSurfaceScale == s.fSurfaceScale && |
| 1593 | fBoundaryMode == s.fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1594 | } |
| 1595 | |
| 1596 | /////////////////////////////////////////////////////////////////////////////// |
| 1597 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1598 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1599 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1600 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1601 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1602 | SkScalar kd, |
| 1603 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1604 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), fKD(kd) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1605 | this->initClassID<GrDiffuseLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1606 | } |
| 1607 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1608 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1609 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1610 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1611 | this->kd() == s.kd(); |
| 1612 | } |
| 1613 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1614 | void GrDiffuseLightingEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1615 | GrProcessorKeyBuilder* b) const { |
| 1616 | GrGLDiffuseLightingEffect::GenKey(*this, caps, b); |
| 1617 | } |
| 1618 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1619 | GrGLFragmentProcessor* GrDiffuseLightingEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1620 | return new GrGLDiffuseLightingEffect(*this); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1621 | } |
| 1622 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1623 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1624 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1625 | const GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1626 | SkScalar surfaceScale = d->fRandom->nextSScalar1(); |
| 1627 | SkScalar kd = d->fRandom->nextUScalar1(); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1628 | SkAutoTUnref<SkImageFilterLight> light(create_random_light(d->fRandom)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1629 | SkMatrix matrix; |
| 1630 | for (int i = 0; i < 9; i++) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1631 | matrix[i] = d->fRandom->nextUScalar1(); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1632 | } |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1633 | BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1634 | return GrDiffuseLightingEffect::Create(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1635 | light, surfaceScale, matrix, kd, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1636 | } |
| 1637 | |
| 1638 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1639 | /////////////////////////////////////////////////////////////////////////////// |
| 1640 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1641 | GrGLLightingEffect::GrGLLightingEffect(const GrProcessor& fp) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1642 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1643 | fLight = m.light()->createGLLight(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1644 | fBoundaryMode = m.boundaryMode(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1645 | } |
| 1646 | |
| 1647 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1648 | delete fLight; |
| 1649 | } |
| 1650 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1651 | void GrGLLightingEffect::emitCode(EmitArgs& args) { |
| 1652 | fImageIncrementUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1653 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1654 | "ImageIncrement"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1655 | fSurfaceScaleUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1656 | kFloat_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1657 | "SurfaceScale"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1658 | fLight->emitLightColorUniform(args.fBuilder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1659 | SkString lightFunc; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1660 | this->emitLightFunc(args.fBuilder, &lightFunc); |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame^] | 1661 | static const GrGLSLShaderVar gSobelArgs[] = { |
| 1662 | GrGLSLShaderVar("a", kFloat_GrSLType), |
| 1663 | GrGLSLShaderVar("b", kFloat_GrSLType), |
| 1664 | GrGLSLShaderVar("c", kFloat_GrSLType), |
| 1665 | GrGLSLShaderVar("d", kFloat_GrSLType), |
| 1666 | GrGLSLShaderVar("e", kFloat_GrSLType), |
| 1667 | GrGLSLShaderVar("f", kFloat_GrSLType), |
| 1668 | GrGLSLShaderVar("scale", kFloat_GrSLType), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1669 | }; |
| 1670 | SkString sobelFuncName; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1671 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 1672 | SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1673 | |
| 1674 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1675 | "sobel", |
| 1676 | SK_ARRAY_COUNT(gSobelArgs), |
| 1677 | gSobelArgs, |
| 1678 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1679 | &sobelFuncName); |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame^] | 1680 | static const GrGLSLShaderVar gPointToNormalArgs[] = { |
| 1681 | GrGLSLShaderVar("x", kFloat_GrSLType), |
| 1682 | GrGLSLShaderVar("y", kFloat_GrSLType), |
| 1683 | GrGLSLShaderVar("scale", kFloat_GrSLType), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1684 | }; |
| 1685 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1686 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1687 | "pointToNormal", |
| 1688 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1689 | gPointToNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1690 | "\treturn normalize(vec3(-x * scale, -y * scale, 1));\n", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1691 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1692 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame^] | 1693 | static const GrGLSLShaderVar gInteriorNormalArgs[] = { |
| 1694 | GrGLSLShaderVar("m", kFloat_GrSLType, 9), |
| 1695 | GrGLSLShaderVar("surfaceScale", kFloat_GrSLType), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1696 | }; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1697 | SkString normalBody = emitNormalFunc(fBoundaryMode, |
| 1698 | pointToNormalName.c_str(), |
| 1699 | sobelFuncName.c_str()); |
| 1700 | SkString normalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1701 | fsBuilder->emitFunction(kVec3f_GrSLType, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1702 | "normal", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1703 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1704 | gInteriorNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1705 | normalBody.c_str(), |
| 1706 | &normalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1707 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1708 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1709 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1710 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1711 | const char* imgInc = args.fBuilder->getUniformCStr(fImageIncrementUni); |
| 1712 | const char* surfScale = args.fBuilder->getUniformCStr(fSurfaceScaleUni); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1713 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1714 | int index = 0; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1715 | for (int dy = 1; dy >= -1; dy--) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1716 | for (int dx = -1; dx <= 1; dx++) { |
| 1717 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1718 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1719 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1720 | fsBuilder->appendTextureLookup(args.fSamplers[0], texCoords.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1721 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1722 | } |
| 1723 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1724 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1725 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1726 | arg.appendf("%s * m[4]", surfScale); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1727 | fLight->emitSurfaceToLight(args.fBuilder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1728 | fsBuilder->codeAppend(";\n"); |
| 1729 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1730 | args.fOutputColor, lightFunc.c_str(), normalName.c_str(), surfScale); |
| 1731 | fLight->emitLightColor(args.fBuilder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1732 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1733 | SkString modulate; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1734 | GrGLSLMulVarBy4f(&modulate, args.fOutputColor, args.fInputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1735 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1736 | } |
| 1737 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1738 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1739 | const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1740 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
| 1741 | b->add32(lighting.boundaryMode() << 2 | lighting.light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1742 | } |
| 1743 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1744 | void GrGLLightingEffect::onSetData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1745 | const GrProcessor& proc) { |
| 1746 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1747 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1748 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1749 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1750 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1751 | SkAutoTUnref<SkImageFilterLight> transformedLight( |
| 1752 | lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1753 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1754 | } |
| 1755 | |
| 1756 | /////////////////////////////////////////////////////////////////////////////// |
| 1757 | |
| 1758 | /////////////////////////////////////////////////////////////////////////////// |
| 1759 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1760 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrProcessor& proc) |
| 1761 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1762 | } |
| 1763 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1764 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1765 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1766 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1767 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1768 | "KD", &kd); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1769 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame^] | 1770 | static const GrGLSLShaderVar gLightArgs[] = { |
| 1771 | GrGLSLShaderVar("normal", kVec3f_GrSLType), |
| 1772 | GrGLSLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1773 | GrGLSLShaderVar("lightColor", kVec3f_GrSLType) |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1774 | }; |
| 1775 | SkString lightBody; |
| 1776 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1777 | lightBody.appendf("\treturn vec4(lightColor * clamp(colorScale, 0.0, 1.0), 1.0);\n"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1778 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1779 | "light", |
| 1780 | SK_ARRAY_COUNT(gLightArgs), |
| 1781 | gLightArgs, |
| 1782 | lightBody.c_str(), |
| 1783 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1784 | } |
| 1785 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1786 | void GrGLDiffuseLightingEffect::onSetData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1787 | const GrProcessor& proc) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1788 | INHERITED::onSetData(pdman, proc); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1789 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1790 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1791 | } |
| 1792 | |
| 1793 | /////////////////////////////////////////////////////////////////////////////// |
| 1794 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1795 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1796 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1797 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1798 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1799 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1800 | SkScalar shininess, |
| 1801 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1802 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode) |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1803 | , fKS(ks) |
| 1804 | , fShininess(shininess) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1805 | this->initClassID<GrSpecularLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1806 | } |
| 1807 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1808 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1809 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1810 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1811 | this->ks() == s.ks() && |
| 1812 | this->shininess() == s.shininess(); |
| 1813 | } |
| 1814 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1815 | void GrSpecularLightingEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1816 | GrProcessorKeyBuilder* b) const { |
| 1817 | GrGLSpecularLightingEffect::GenKey(*this, caps, b); |
| 1818 | } |
| 1819 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1820 | GrGLFragmentProcessor* GrSpecularLightingEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1821 | return new GrGLSpecularLightingEffect(*this); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1822 | } |
| 1823 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1824 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1825 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1826 | const GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1827 | SkScalar surfaceScale = d->fRandom->nextSScalar1(); |
| 1828 | SkScalar ks = d->fRandom->nextUScalar1(); |
| 1829 | SkScalar shininess = d->fRandom->nextUScalar1(); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1830 | SkAutoTUnref<SkImageFilterLight> light(create_random_light(d->fRandom)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1831 | SkMatrix matrix; |
| 1832 | for (int i = 0; i < 9; i++) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1833 | matrix[i] = d->fRandom->nextUScalar1(); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1834 | } |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1835 | BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1836 | return GrSpecularLightingEffect::Create(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1837 | light, surfaceScale, matrix, ks, shininess, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1838 | } |
| 1839 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1840 | /////////////////////////////////////////////////////////////////////////////// |
| 1841 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1842 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrProcessor& proc) |
| 1843 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1844 | } |
| 1845 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1846 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1847 | const char* ks; |
| 1848 | const char* shininess; |
| 1849 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1850 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1851 | kFloat_GrSLType, kDefault_GrSLPrecision, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1852 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1853 | kFloat_GrSLType, |
| 1854 | kDefault_GrSLPrecision, |
| 1855 | "Shininess", |
| 1856 | &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1857 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame^] | 1858 | static const GrGLSLShaderVar gLightArgs[] = { |
| 1859 | GrGLSLShaderVar("normal", kVec3f_GrSLType), |
| 1860 | GrGLSLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1861 | GrGLSLShaderVar("lightColor", kVec3f_GrSLType) |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1862 | }; |
| 1863 | SkString lightBody; |
| 1864 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1865 | lightBody.appendf("\tfloat colorScale = %s * pow(dot(normal, halfDir), %s);\n", ks, shininess); |
senorblanco@chromium.org | 7b734e0 | 2012-10-29 19:47:06 +0000 | [diff] [blame] | 1866 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1867 | lightBody.appendf("\treturn vec4(color, max(max(color.r, color.g), color.b));\n"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1868 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1869 | "light", |
| 1870 | SK_ARRAY_COUNT(gLightArgs), |
| 1871 | gLightArgs, |
| 1872 | lightBody.c_str(), |
| 1873 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1874 | } |
| 1875 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1876 | void GrGLSpecularLightingEffect::onSetData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1877 | const GrProcessor& effect) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1878 | INHERITED::onSetData(pdman, effect); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1879 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1880 | pdman.set1f(fKSUni, spec.ks()); |
| 1881 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1882 | } |
| 1883 | |
| 1884 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1885 | void GrGLLight::emitLightColorUniform(GrGLFPBuilder* builder) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1886 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1887 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1888 | "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1889 | } |
| 1890 | |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1891 | void GrGLLight::emitLightColor(GrGLFPBuilder* builder, const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1892 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1893 | } |
| 1894 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1895 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
| 1896 | const SkImageFilterLight* light) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1897 | setUniformPoint3(pdman, fColorUni, |
| 1898 | light->color().makeScale(SkScalarInvert(SkIntToScalar(255)))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1899 | } |
| 1900 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1901 | /////////////////////////////////////////////////////////////////////////////// |
| 1902 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1903 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1904 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1905 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1906 | SkASSERT(light->type() == SkImageFilterLight::kDistant_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1907 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1908 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1909 | } |
| 1910 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1911 | void GrGLDistantLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1912 | const char* dir; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1913 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1914 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1915 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1916 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1917 | } |
| 1918 | |
| 1919 | /////////////////////////////////////////////////////////////////////////////// |
| 1920 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1921 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1922 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1923 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1924 | SkASSERT(light->type() == SkImageFilterLight::kPoint_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1925 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1926 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1927 | } |
| 1928 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1929 | void GrGLPointLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1930 | const char* loc; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1931 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1932 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1933 | "LightLocation", &loc); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1934 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1935 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1936 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1937 | } |
| 1938 | |
| 1939 | /////////////////////////////////////////////////////////////////////////////// |
| 1940 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1941 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1942 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1943 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1944 | SkASSERT(light->type() == SkImageFilterLight::kSpot_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1945 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1946 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1947 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1948 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1949 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1950 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1951 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1952 | } |
| 1953 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1954 | void GrGLSpotLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1955 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1956 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1957 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1958 | "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1959 | |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1960 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1961 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1962 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1963 | } |
| 1964 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1965 | void GrGLSpotLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1966 | const char *surfaceToLight) { |
| 1967 | |
| 1968 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1969 | |
| 1970 | const char* exponent; |
| 1971 | const char* cosInner; |
| 1972 | const char* cosOuter; |
| 1973 | const char* coneScale; |
| 1974 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1975 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1976 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1977 | "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1978 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1979 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1980 | "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1981 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1982 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1983 | "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1984 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1985 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1986 | "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1987 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1988 | kVec3f_GrSLType, kDefault_GrSLPrecision, "S", &s); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1989 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame^] | 1990 | static const GrGLSLShaderVar gLightColorArgs[] = { |
| 1991 | GrGLSLShaderVar("surfaceToLight", kVec3f_GrSLType) |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1992 | }; |
| 1993 | SkString lightColorBody; |
| 1994 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1995 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1996 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1997 | lightColorBody.appendf("\t}\n"); |
| 1998 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1999 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 2000 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 2001 | color, cosOuter, coneScale); |
| 2002 | lightColorBody.appendf("\t}\n"); |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 2003 | lightColorBody.appendf("\treturn %s;\n", color); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 2004 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 2005 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 2006 | "lightColor", |
| 2007 | SK_ARRAY_COUNT(gLightColorArgs), |
| 2008 | gLightColorArgs, |
| 2009 | lightColorBody.c_str(), |
| 2010 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 2011 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 2012 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 2013 | } |
| 2014 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 2015 | #endif |
| 2016 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2017 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 2018 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 2019 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2020 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |