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" |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 11 | #include "SkPoint3.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 12 | #include "SkReadBuffer.h" |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 13 | #include "SkTypes.h" |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 14 | #include "SkWriteBuffer.h" |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 15 | |
| 16 | #if SK_SUPPORT_GPU |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 17 | #include "GrContext.h" |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 18 | #include "GrDrawContext.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 19 | #include "GrFragmentProcessor.h" |
| 20 | #include "GrInvariantOutput.h" |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 21 | #include "GrPaint.h" |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 22 | #include "effects/GrSingleTextureEffect.h" |
wangyix | 6af0c93 | 2015-07-22 10:21:17 -0700 | [diff] [blame] | 23 | #include "gl/GrGLFragmentProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 24 | #include "gl/builders/GrGLProgramBuilder.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 25 | |
| 26 | class GrGLDiffuseLightingEffect; |
| 27 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 28 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 29 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 30 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 31 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 32 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 33 | namespace { |
| 34 | |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 35 | const SkScalar gOneThird = SkIntToScalar(1) / 3; |
| 36 | const SkScalar gTwoThirds = SkIntToScalar(2) / 3; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 37 | const SkScalar gOneHalf = 0.5f; |
| 38 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 39 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 40 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 41 | void setUniformPoint3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 42 | const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 43 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 44 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 45 | } |
| 46 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 47 | void setUniformNormal3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 48 | const SkPoint3& point) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 49 | setUniformPoint3(pdman, uni, point); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 50 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 51 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 52 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 53 | // Shift matrix components to the left, as we advance pixels to the right. |
| 54 | inline void shiftMatrixLeft(int m[9]) { |
| 55 | m[0] = m[1]; |
| 56 | m[3] = m[4]; |
| 57 | m[6] = m[7]; |
| 58 | m[1] = m[2]; |
| 59 | m[4] = m[5]; |
| 60 | m[7] = m[8]; |
| 61 | } |
| 62 | |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 63 | static inline void fast_normalize(SkPoint3* vector) { |
| 64 | // add a tiny bit so we don't have to worry about divide-by-zero |
| 65 | SkScalar magSq = vector->dot(*vector) + SK_ScalarNearlyZero; |
| 66 | SkScalar scale = sk_float_rsqrt(magSq); |
| 67 | vector->fX *= scale; |
| 68 | vector->fY *= scale; |
| 69 | vector->fZ *= scale; |
| 70 | } |
| 71 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 72 | class DiffuseLightingType { |
| 73 | public: |
| 74 | DiffuseLightingType(SkScalar kd) |
| 75 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 76 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 77 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 78 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 79 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 80 | SkPoint3 color = lightColor.makeScale(colorScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 81 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 82 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 83 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 84 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 85 | } |
| 86 | private: |
| 87 | SkScalar fKD; |
| 88 | }; |
| 89 | |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 90 | static SkScalar max_component(const SkPoint3& p) { |
| 91 | return p.x() > p.y() ? (p.x() > p.z() ? p.x() : p.z()) : (p.y() > p.z() ? p.y() : p.z()); |
| 92 | } |
| 93 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 94 | class SpecularLightingType { |
| 95 | public: |
| 96 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 97 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 98 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 99 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 100 | SkPoint3 halfDir(surfaceTolight); |
| 101 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 102 | fast_normalize(&halfDir); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 103 | SkScalar colorScale = SkScalarMul(fKS, |
| 104 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 105 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 106 | SkPoint3 color = lightColor.makeScale(colorScale); |
| 107 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(max_component(color)), 255), |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 108 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 109 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 110 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 111 | } |
| 112 | private: |
| 113 | SkScalar fKS; |
| 114 | SkScalar fShininess; |
| 115 | }; |
| 116 | |
| 117 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 118 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 119 | } |
| 120 | |
| 121 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 122 | SkPoint3 vector = SkPoint3::Make(SkScalarMul(-x, surfaceScale), |
| 123 | SkScalarMul(-y, surfaceScale), |
| 124 | SK_Scalar1); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 125 | fast_normalize(&vector); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 126 | return vector; |
| 127 | } |
| 128 | |
| 129 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 130 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 131 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 132 | surfaceScale); |
| 133 | } |
| 134 | |
| 135 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 136 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 137 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 138 | surfaceScale); |
| 139 | } |
| 140 | |
| 141 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 142 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 143 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 144 | surfaceScale); |
| 145 | } |
| 146 | |
| 147 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 148 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 149 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 150 | surfaceScale); |
| 151 | } |
| 152 | |
| 153 | |
| 154 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 155 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 156 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 157 | surfaceScale); |
| 158 | } |
| 159 | |
| 160 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 161 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 162 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 163 | surfaceScale); |
| 164 | } |
| 165 | |
| 166 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 167 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 168 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 169 | surfaceScale); |
| 170 | } |
| 171 | |
| 172 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 173 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 174 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 175 | surfaceScale); |
| 176 | } |
| 177 | |
| 178 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 179 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 180 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 181 | surfaceScale); |
| 182 | } |
| 183 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 184 | template <class LightingType, class LightType> void lightBitmap(const LightingType& lightingType, |
| 185 | const SkImageFilterLight* light, |
| 186 | const SkBitmap& src, |
| 187 | SkBitmap* dst, |
| 188 | SkScalar surfaceScale, |
| 189 | const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 190 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 191 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 192 | int left = bounds.left(), right = bounds.right(); |
| 193 | int bottom = bounds.bottom(); |
| 194 | int y = bounds.top(); |
| 195 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 196 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 197 | int x = left; |
| 198 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 199 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 200 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 201 | m[4] = SkGetPackedA32(*row1++); |
| 202 | m[5] = SkGetPackedA32(*row1++); |
| 203 | m[7] = SkGetPackedA32(*row2++); |
| 204 | m[8] = SkGetPackedA32(*row2++); |
| 205 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 206 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 207 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 208 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 209 | { |
| 210 | shiftMatrixLeft(m); |
| 211 | m[5] = SkGetPackedA32(*row1++); |
| 212 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 213 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 214 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 215 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 216 | } |
| 217 | shiftMatrixLeft(m); |
| 218 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 219 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 220 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 221 | } |
| 222 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 223 | for (++y; y < bottom - 1; ++y) { |
| 224 | int x = left; |
| 225 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 226 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 227 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 228 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 229 | m[1] = SkGetPackedA32(*row0++); |
| 230 | m[2] = SkGetPackedA32(*row0++); |
| 231 | m[4] = SkGetPackedA32(*row1++); |
| 232 | m[5] = SkGetPackedA32(*row1++); |
| 233 | m[7] = SkGetPackedA32(*row2++); |
| 234 | m[8] = SkGetPackedA32(*row2++); |
| 235 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 236 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 237 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 238 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 239 | shiftMatrixLeft(m); |
| 240 | m[2] = SkGetPackedA32(*row0++); |
| 241 | m[5] = SkGetPackedA32(*row1++); |
| 242 | m[8] = SkGetPackedA32(*row2++); |
| 243 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 244 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 245 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 246 | } |
| 247 | shiftMatrixLeft(m); |
| 248 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 249 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 250 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 254 | int x = left; |
| 255 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 256 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 257 | int m[9]; |
| 258 | m[1] = SkGetPackedA32(*row0++); |
| 259 | m[2] = SkGetPackedA32(*row0++); |
| 260 | m[4] = SkGetPackedA32(*row1++); |
| 261 | m[5] = SkGetPackedA32(*row1++); |
| 262 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 263 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 264 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 265 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 266 | { |
| 267 | shiftMatrixLeft(m); |
| 268 | m[2] = SkGetPackedA32(*row0++); |
| 269 | m[5] = SkGetPackedA32(*row1++); |
| 270 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 271 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 272 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 273 | } |
| 274 | shiftMatrixLeft(m); |
| 275 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 276 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 277 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 278 | } |
| 279 | } |
| 280 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 281 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 282 | SkPoint3 point; |
| 283 | point.fX = buffer.readScalar(); |
| 284 | point.fY = buffer.readScalar(); |
| 285 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 286 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 287 | SkScalarIsFinite(point.fY) && |
| 288 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 289 | return point; |
| 290 | }; |
| 291 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 292 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 293 | buffer.writeScalar(point.fX); |
| 294 | buffer.writeScalar(point.fY); |
| 295 | buffer.writeScalar(point.fZ); |
| 296 | }; |
| 297 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 298 | enum BoundaryMode { |
| 299 | kTopLeft_BoundaryMode, |
| 300 | kTop_BoundaryMode, |
| 301 | kTopRight_BoundaryMode, |
| 302 | kLeft_BoundaryMode, |
| 303 | kInterior_BoundaryMode, |
| 304 | kRight_BoundaryMode, |
| 305 | kBottomLeft_BoundaryMode, |
| 306 | kBottom_BoundaryMode, |
| 307 | kBottomRight_BoundaryMode, |
| 308 | |
| 309 | kBoundaryModeCount, |
| 310 | }; |
| 311 | |
| 312 | class SkLightingImageFilterInternal : public SkLightingImageFilter { |
| 313 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 314 | SkLightingImageFilterInternal(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 315 | SkScalar surfaceScale, |
| 316 | SkImageFilter* input, |
| 317 | const CropRect* cropRect) |
| 318 | : INHERITED(light, surfaceScale, input, cropRect) {} |
| 319 | |
| 320 | #if SK_SUPPORT_GPU |
| 321 | bool canFilterImageGPU() const override { return true; } |
| 322 | bool filterImageGPU(Proxy*, const SkBitmap& src, const Context&, |
| 323 | SkBitmap* result, SkIPoint* offset) const override; |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 324 | virtual GrFragmentProcessor* getFragmentProcessor(GrTexture*, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 325 | const SkMatrix&, |
| 326 | const SkIRect& bounds, |
| 327 | BoundaryMode boundaryMode) const = 0; |
| 328 | #endif |
| 329 | private: |
| 330 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 331 | void drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 332 | GrTexture* src, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 333 | const SkMatrix& matrix, |
| 334 | const GrClip& clip, |
| 335 | const SkRect& dstRect, |
| 336 | BoundaryMode boundaryMode, |
| 337 | const SkIRect& bounds) const; |
| 338 | #endif |
| 339 | typedef SkLightingImageFilter INHERITED; |
| 340 | }; |
| 341 | |
| 342 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 343 | void SkLightingImageFilterInternal::drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 344 | GrTexture* src, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 345 | const SkMatrix& matrix, |
| 346 | const GrClip& clip, |
| 347 | const SkRect& dstRect, |
| 348 | BoundaryMode boundaryMode, |
| 349 | const SkIRect& bounds) const { |
| 350 | SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 351 | GrPaint paint; |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 352 | GrFragmentProcessor* fp = this->getFragmentProcessor(src, matrix, bounds, boundaryMode); |
bsalomon | ac856c9 | 2015-08-27 06:30:17 -0700 | [diff] [blame] | 353 | paint.addColorFragmentProcessor(fp)->unref(); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 354 | drawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 355 | } |
| 356 | |
| 357 | bool SkLightingImageFilterInternal::filterImageGPU(Proxy* proxy, |
| 358 | const SkBitmap& src, |
| 359 | const Context& ctx, |
| 360 | SkBitmap* result, |
| 361 | SkIPoint* offset) const { |
| 362 | SkBitmap input = src; |
| 363 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | 9a70b6e | 2015-10-16 11:35:14 -0700 | [diff] [blame] | 364 | if (!this->filterInputGPU(0, proxy, src, ctx, &input, &srcOffset)) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 365 | return false; |
| 366 | } |
| 367 | SkIRect bounds; |
| 368 | if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) { |
| 369 | return false; |
| 370 | } |
| 371 | SkRect dstRect = SkRect::MakeWH(SkIntToScalar(bounds.width()), |
| 372 | SkIntToScalar(bounds.height())); |
| 373 | GrTexture* srcTexture = input.getTexture(); |
| 374 | GrContext* context = srcTexture->getContext(); |
| 375 | |
| 376 | GrSurfaceDesc desc; |
| 377 | desc.fFlags = kRenderTarget_GrSurfaceFlag, |
| 378 | desc.fWidth = bounds.width(); |
| 379 | desc.fHeight = bounds.height(); |
| 380 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 381 | |
bsalomon | eae6200 | 2015-07-31 13:59:30 -0700 | [diff] [blame] | 382 | SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc)); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 383 | if (!dst) { |
| 384 | return false; |
| 385 | } |
| 386 | |
| 387 | // setup new clip |
| 388 | GrClip clip(dstRect); |
| 389 | |
| 390 | offset->fX = bounds.left(); |
| 391 | offset->fY = bounds.top(); |
| 392 | SkMatrix matrix(ctx.ctm()); |
| 393 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 394 | bounds.offset(-srcOffset); |
| 395 | SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1); |
| 396 | SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1); |
| 397 | SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1); |
| 398 | SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2); |
| 399 | SkRect interior = dstRect.makeInset(1, 1); |
| 400 | SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2); |
| 401 | SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1); |
| 402 | SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1); |
| 403 | SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 404 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 405 | SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget())); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 406 | if (!drawContext) { |
| 407 | return false; |
| 408 | } |
| 409 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 410 | this->drawRect(drawContext, srcTexture, matrix, clip, topLeft, kTopLeft_BoundaryMode, bounds); |
| 411 | this->drawRect(drawContext, srcTexture, matrix, clip, top, kTop_BoundaryMode, bounds); |
| 412 | this->drawRect(drawContext, srcTexture, matrix, clip, topRight, kTopRight_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 413 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 414 | this->drawRect(drawContext, srcTexture, matrix, clip, left, kLeft_BoundaryMode, bounds); |
| 415 | this->drawRect(drawContext, srcTexture, matrix, clip, interior, kInterior_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 416 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 417 | this->drawRect(drawContext, srcTexture, matrix, clip, right, kRight_BoundaryMode, bounds); |
| 418 | this->drawRect(drawContext, srcTexture, matrix, clip, bottomLeft, kBottomLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 419 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 420 | this->drawRect(drawContext, srcTexture, matrix, clip, bottom, kBottom_BoundaryMode, bounds); |
| 421 | this->drawRect(drawContext, srcTexture, matrix, clip, bottomRight, |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 422 | kBottomRight_BoundaryMode, bounds); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 423 | WrapTexture(dst, bounds.width(), bounds.height(), result); |
| 424 | return true; |
| 425 | } |
| 426 | #endif |
| 427 | |
| 428 | class SkDiffuseLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 429 | public: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 430 | static SkImageFilter* Create(SkImageFilterLight* light, SkScalar surfaceScale, |
| 431 | SkScalar kd, SkImageFilter*, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 432 | const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 433 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 434 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 435 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 436 | SkScalar kd() const { return fKD; } |
| 437 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 438 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 439 | SkDiffuseLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 440 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 441 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 442 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 443 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 444 | #if SK_SUPPORT_GPU |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 445 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, const SkIRect& bounds, |
| 446 | BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 447 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 448 | |
| 449 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 450 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 451 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 452 | SkScalar fKD; |
| 453 | }; |
| 454 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 455 | class SkSpecularLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 456 | public: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 457 | static SkImageFilter* Create(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 458 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 459 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 460 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 461 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 462 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 463 | SkScalar ks() const { return fKS; } |
| 464 | SkScalar shininess() const { return fShininess; } |
| 465 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 466 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 467 | SkSpecularLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 468 | SkScalar shininess, SkImageFilter* input, const CropRect*); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 469 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 470 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 471 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 472 | #if SK_SUPPORT_GPU |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 473 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, const SkIRect& bounds, |
| 474 | BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 475 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 476 | |
| 477 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 478 | SkScalar fKS; |
| 479 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 480 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 481 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 482 | }; |
| 483 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 484 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 485 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 486 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 487 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 488 | GrLightingEffect(GrTexture* texture, const SkImageFilterLight* light, SkScalar surfaceScale, |
| 489 | const SkMatrix& matrix, BoundaryMode boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 490 | virtual ~GrLightingEffect(); |
| 491 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 492 | const SkImageFilterLight* light() const { return fLight; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 493 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 494 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 495 | BoundaryMode boundaryMode() const { return fBoundaryMode; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 496 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 497 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 498 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 499 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 500 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 501 | // lighting shaders are complicated. We just throw up our hands. |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 502 | inout->mulByUnknownFourComponents(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 503 | } |
| 504 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 505 | private: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 506 | const SkImageFilterLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 507 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 508 | SkMatrix fFilterMatrix; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 509 | BoundaryMode fBoundaryMode; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 510 | |
| 511 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 512 | }; |
| 513 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 514 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 515 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 516 | static GrFragmentProcessor* Create(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 517 | const SkImageFilterLight* light, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 518 | SkScalar surfaceScale, |
| 519 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 520 | SkScalar kd, |
| 521 | BoundaryMode boundaryMode) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 522 | return new GrDiffuseLightingEffect(texture, light, surfaceScale, matrix, kd, boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 523 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 524 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 525 | const char* name() const override { return "DiffuseLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 526 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 527 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 528 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 529 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 530 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 531 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 532 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 533 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 534 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 535 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 536 | GrDiffuseLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 537 | const SkImageFilterLight* light, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 538 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 539 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 540 | SkScalar kd, |
| 541 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 542 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 543 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 544 | typedef GrLightingEffect INHERITED; |
| 545 | SkScalar fKD; |
| 546 | }; |
| 547 | |
| 548 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 549 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 550 | static GrFragmentProcessor* Create(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 551 | const SkImageFilterLight* light, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 552 | SkScalar surfaceScale, |
| 553 | const SkMatrix& matrix, |
| 554 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 555 | SkScalar shininess, |
| 556 | BoundaryMode boundaryMode) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 557 | return new GrSpecularLightingEffect(texture, light, surfaceScale, matrix, ks, shininess, |
| 558 | boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 559 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 560 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 561 | const char* name() const override { return "SpecularLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 562 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 563 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 564 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 565 | SkScalar ks() const { return fKS; } |
| 566 | SkScalar shininess() const { return fShininess; } |
| 567 | |
| 568 | private: |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 569 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 570 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 571 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 572 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 573 | GrSpecularLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 574 | const SkImageFilterLight* light, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 575 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 576 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 577 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 578 | SkScalar shininess, |
| 579 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 580 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 581 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 582 | typedef GrLightingEffect INHERITED; |
| 583 | SkScalar fKS; |
| 584 | SkScalar fShininess; |
| 585 | }; |
| 586 | |
| 587 | /////////////////////////////////////////////////////////////////////////////// |
| 588 | |
| 589 | class GrGLLight { |
| 590 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 591 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 592 | |
| 593 | /** |
| 594 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 595 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 596 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 597 | void emitLightColorUniform(GrGLFPBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 598 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 599 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 600 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 601 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 602 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 603 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 604 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 605 | * and so this function only needs to be overridden if the light color varies spatially. |
| 606 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 607 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) = 0; |
| 608 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 609 | |
| 610 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 611 | // INHERITED::setData(). |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 612 | virtual void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 613 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 614 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 615 | /** |
| 616 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 617 | * function. |
| 618 | */ |
| 619 | UniformHandle lightColorUni() const { return fColorUni; } |
| 620 | |
| 621 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 622 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 623 | |
| 624 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 625 | }; |
| 626 | |
| 627 | /////////////////////////////////////////////////////////////////////////////// |
| 628 | |
| 629 | class GrGLDistantLight : public GrGLLight { |
| 630 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 631 | virtual ~GrGLDistantLight() {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 632 | void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 633 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 634 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 635 | private: |
| 636 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 637 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 638 | }; |
| 639 | |
| 640 | /////////////////////////////////////////////////////////////////////////////// |
| 641 | |
| 642 | class GrGLPointLight : public GrGLLight { |
| 643 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 644 | virtual ~GrGLPointLight() {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 645 | void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 646 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 647 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 648 | private: |
| 649 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 650 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 651 | }; |
| 652 | |
| 653 | /////////////////////////////////////////////////////////////////////////////// |
| 654 | |
| 655 | class GrGLSpotLight : public GrGLLight { |
| 656 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 657 | virtual ~GrGLSpotLight() {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 658 | void setData(const GrGLProgramDataManager&, const SkImageFilterLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 659 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
| 660 | void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 661 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 662 | private: |
| 663 | typedef GrGLLight INHERITED; |
| 664 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 665 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 666 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 667 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 668 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 669 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 670 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 671 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 672 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 673 | #else |
| 674 | |
| 675 | class GrGLLight; |
| 676 | |
| 677 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 678 | |
| 679 | }; |
| 680 | |
| 681 | /////////////////////////////////////////////////////////////////////////////// |
| 682 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 683 | class SkImageFilterLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 684 | public: |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame^] | 685 | |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 686 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 687 | enum LightType { |
| 688 | kDistant_LightType, |
| 689 | kPoint_LightType, |
| 690 | kSpot_LightType, |
| 691 | }; |
| 692 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 693 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 694 | virtual GrGLLight* createGLLight() const = 0; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 695 | virtual bool isEqual(const SkImageFilterLight& other) const { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 696 | return fColor == other.fColor; |
| 697 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 698 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 699 | virtual bool requiresFragmentPosition() const = 0; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 700 | virtual SkImageFilterLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 701 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 702 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 703 | void flattenLight(SkWriteBuffer& buffer) const; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 704 | static SkImageFilterLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 705 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 706 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 707 | SkImageFilterLight(SkColor color) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 708 | fColor = SkPoint3::Make(SkIntToScalar(SkColorGetR(color)), |
| 709 | SkIntToScalar(SkColorGetG(color)), |
| 710 | SkIntToScalar(SkColorGetB(color))); |
| 711 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 712 | SkImageFilterLight(const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 713 | : fColor(color) {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 714 | SkImageFilterLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 715 | fColor = readPoint3(buffer); |
| 716 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 717 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 718 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 719 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 720 | |
| 721 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 722 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 723 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 724 | }; |
| 725 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 726 | /////////////////////////////////////////////////////////////////////////////// |
| 727 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 728 | class SkDistantLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 729 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 730 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 731 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 732 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 733 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 734 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 735 | return fDirection; |
| 736 | }; |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 737 | const SkPoint3& lightColor(const SkPoint3&) const { return this->color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 738 | LightType type() const override { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 739 | const SkPoint3& direction() const { return fDirection; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 740 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 741 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 742 | return new GrGLDistantLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 743 | #else |
| 744 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 745 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 746 | #endif |
| 747 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 748 | bool requiresFragmentPosition() const override { return false; } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 749 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 750 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 751 | if (other.type() != kDistant_LightType) { |
| 752 | return false; |
| 753 | } |
| 754 | |
| 755 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 756 | return INHERITED::isEqual(other) && |
| 757 | fDirection == o.fDirection; |
| 758 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 759 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 760 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 761 | fDirection = readPoint3(buffer); |
| 762 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 763 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 764 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 765 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 766 | : INHERITED(color), fDirection(direction) { |
| 767 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 768 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 769 | return new SkDistantLight(direction(), color()); |
| 770 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 771 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 772 | writePoint3(fDirection, buffer); |
| 773 | } |
| 774 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 775 | private: |
| 776 | SkPoint3 fDirection; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 777 | |
| 778 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 779 | }; |
| 780 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 781 | /////////////////////////////////////////////////////////////////////////////// |
| 782 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 783 | class SkPointLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 784 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 785 | SkPointLight(const SkPoint3& location, SkColor color) |
| 786 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 787 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 788 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 789 | SkPoint3 direction = SkPoint3::Make(fLocation.fX - SkIntToScalar(x), |
| 790 | fLocation.fY - SkIntToScalar(y), |
| 791 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), |
| 792 | surfaceScale)); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 793 | fast_normalize(&direction); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 794 | return direction; |
| 795 | }; |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 796 | const SkPoint3& lightColor(const SkPoint3&) const { return this->color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 797 | LightType type() const override { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 798 | const SkPoint3& location() const { return fLocation; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 799 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 800 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 801 | return new GrGLPointLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 802 | #else |
| 803 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 804 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 805 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 806 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 807 | bool requiresFragmentPosition() const override { return true; } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 808 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 809 | if (other.type() != kPoint_LightType) { |
| 810 | return false; |
| 811 | } |
| 812 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 813 | return INHERITED::isEqual(other) && |
| 814 | fLocation == o.fLocation; |
| 815 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 816 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 817 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 818 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 819 | // Use X scale and Y scale on Z and average the result |
| 820 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 821 | matrix.mapVectors(&locationZ, 1); |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame^] | 822 | SkPoint3 location = SkPoint3::Make(location2.fX, |
| 823 | location2.fY, |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 824 | SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 825 | return new SkPointLight(location, color()); |
| 826 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 827 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 828 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 829 | fLocation = readPoint3(buffer); |
| 830 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 831 | |
| 832 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 833 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 834 | : INHERITED(color), fLocation(location) {} |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 835 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 836 | writePoint3(fLocation, buffer); |
| 837 | } |
| 838 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 839 | private: |
| 840 | SkPoint3 fLocation; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 841 | |
| 842 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 843 | }; |
| 844 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 845 | /////////////////////////////////////////////////////////////////////////////// |
| 846 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 847 | class SkSpotLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 848 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 849 | SkSpotLight(const SkPoint3& location, |
| 850 | const SkPoint3& target, |
| 851 | SkScalar specularExponent, |
| 852 | SkScalar cutoffAngle, |
| 853 | SkColor color) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 854 | : INHERITED(color), |
| 855 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 856 | fTarget(target), |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame^] | 857 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 858 | { |
| 859 | fS = target - location; |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 860 | fast_normalize(&fS); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 861 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 862 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 863 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 864 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 865 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 866 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 867 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 868 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 869 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 870 | // Use X scale and Y scale on Z and average the result |
| 871 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 872 | matrix.mapVectors(&locationZ, 1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 873 | SkPoint3 location = SkPoint3::Make(location2.fX, location2.fY, |
| 874 | SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 875 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 876 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 877 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 878 | matrix.mapVectors(&targetZ, 1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 879 | SkPoint3 target = SkPoint3::Make(target2.fX, target2.fY, |
| 880 | SkScalarAve(targetZ.fX, targetZ.fY)); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 881 | SkPoint3 s = target - location; |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 882 | fast_normalize(&s); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 883 | return new SkSpotLight(location, |
| 884 | target, |
| 885 | fSpecularExponent, |
| 886 | fCosOuterConeAngle, |
| 887 | fCosInnerConeAngle, |
| 888 | fConeScale, |
| 889 | s, |
| 890 | color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 891 | } |
| 892 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 893 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 894 | SkPoint3 direction = SkPoint3::Make(fLocation.fX - SkIntToScalar(x), |
| 895 | fLocation.fY - SkIntToScalar(y), |
| 896 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), |
| 897 | surfaceScale)); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 898 | fast_normalize(&direction); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 899 | return direction; |
| 900 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 901 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 902 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 903 | SkScalar scale = 0; |
| 904 | if (cosAngle >= fCosOuterConeAngle) { |
| 905 | scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 906 | if (cosAngle < fCosInnerConeAngle) { |
| 907 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
| 908 | scale *= fConeScale; |
| 909 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 910 | } |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 911 | return this->color().makeScale(scale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 912 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 913 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 914 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 915 | return new GrGLSpotLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 916 | #else |
| 917 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 918 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 919 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 920 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 921 | bool requiresFragmentPosition() const override { return true; } |
| 922 | LightType type() const override { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 923 | const SkPoint3& location() const { return fLocation; } |
| 924 | const SkPoint3& target() const { return fTarget; } |
| 925 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 926 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 927 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 928 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 929 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 930 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 931 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 932 | fLocation = readPoint3(buffer); |
| 933 | fTarget = readPoint3(buffer); |
| 934 | fSpecularExponent = buffer.readScalar(); |
| 935 | fCosOuterConeAngle = buffer.readScalar(); |
| 936 | fCosInnerConeAngle = buffer.readScalar(); |
| 937 | fConeScale = buffer.readScalar(); |
| 938 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 939 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 940 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 941 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 942 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 943 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 944 | protected: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 945 | SkSpotLight(const SkPoint3& location, |
| 946 | const SkPoint3& target, |
| 947 | SkScalar specularExponent, |
| 948 | SkScalar cosOuterConeAngle, |
| 949 | SkScalar cosInnerConeAngle, |
| 950 | SkScalar coneScale, |
| 951 | const SkPoint3& s, |
| 952 | const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 953 | : INHERITED(color), |
| 954 | fLocation(location), |
| 955 | fTarget(target), |
| 956 | fSpecularExponent(specularExponent), |
| 957 | fCosOuterConeAngle(cosOuterConeAngle), |
| 958 | fCosInnerConeAngle(cosInnerConeAngle), |
| 959 | fConeScale(coneScale), |
| 960 | fS(s) |
| 961 | { |
| 962 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 963 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 964 | writePoint3(fLocation, buffer); |
| 965 | writePoint3(fTarget, buffer); |
| 966 | buffer.writeScalar(fSpecularExponent); |
| 967 | buffer.writeScalar(fCosOuterConeAngle); |
| 968 | buffer.writeScalar(fCosInnerConeAngle); |
| 969 | buffer.writeScalar(fConeScale); |
| 970 | writePoint3(fS, buffer); |
| 971 | } |
| 972 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 973 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 974 | if (other.type() != kSpot_LightType) { |
| 975 | return false; |
| 976 | } |
| 977 | |
| 978 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 979 | return INHERITED::isEqual(other) && |
| 980 | fLocation == o.fLocation && |
| 981 | fTarget == o.fTarget && |
| 982 | fSpecularExponent == o.fSpecularExponent && |
| 983 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 984 | } |
| 985 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 986 | private: |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame^] | 987 | static const SkScalar kSpecularExponentMin; |
| 988 | static const SkScalar kSpecularExponentMax; |
| 989 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 990 | SkPoint3 fLocation; |
| 991 | SkPoint3 fTarget; |
| 992 | SkScalar fSpecularExponent; |
| 993 | SkScalar fCosOuterConeAngle; |
| 994 | SkScalar fCosInnerConeAngle; |
| 995 | SkScalar fConeScale; |
| 996 | SkPoint3 fS; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 997 | |
| 998 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 999 | }; |
| 1000 | |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame^] | 1001 | // According to the spec, the specular term should be in the range [1, 128] : |
| 1002 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
| 1003 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 1004 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
| 1005 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1006 | /////////////////////////////////////////////////////////////////////////////// |
| 1007 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1008 | void SkImageFilterLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1009 | // Write type first, then baseclass, then subclass. |
| 1010 | buffer.writeInt(this->type()); |
| 1011 | writePoint3(fColor, buffer); |
| 1012 | this->onFlattenLight(buffer); |
| 1013 | } |
| 1014 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1015 | /*static*/ SkImageFilterLight* SkImageFilterLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1016 | // Read type first. |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1017 | const SkImageFilterLight::LightType type = (SkImageFilterLight::LightType)buffer.readInt(); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1018 | switch (type) { |
| 1019 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 1020 | // then subclass, same order as flattenLight. |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1021 | case SkImageFilterLight::kDistant_LightType: |
| 1022 | return new SkDistantLight(buffer); |
| 1023 | case SkImageFilterLight::kPoint_LightType: |
| 1024 | return new SkPointLight(buffer); |
| 1025 | case SkImageFilterLight::kSpot_LightType: |
| 1026 | return new SkSpotLight(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1027 | default: |
| 1028 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1029 | buffer.validate(false); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1030 | return nullptr; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1031 | } |
| 1032 | } |
| 1033 | /////////////////////////////////////////////////////////////////////////////// |
| 1034 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1035 | SkLightingImageFilter::SkLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1036 | SkImageFilter* input, const CropRect* cropRect) |
| 1037 | : INHERITED(1, &input, cropRect) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1038 | , fLight(SkRef(light)) |
| 1039 | , fSurfaceScale(surfaceScale / 255) |
| 1040 | {} |
| 1041 | |
| 1042 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 1043 | SkColor lightColor, |
| 1044 | SkScalar surfaceScale, |
| 1045 | SkScalar kd, |
| 1046 | SkImageFilter* input, |
| 1047 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1048 | SkAutoTUnref<SkImageFilterLight> light(new SkDistantLight(direction, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1049 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1050 | } |
| 1051 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1052 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 1053 | SkColor lightColor, |
| 1054 | SkScalar surfaceScale, |
| 1055 | SkScalar kd, |
| 1056 | SkImageFilter* input, |
| 1057 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1058 | SkAutoTUnref<SkImageFilterLight> light(new SkPointLight(location, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1059 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1060 | } |
| 1061 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1062 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 1063 | const SkPoint3& target, |
| 1064 | SkScalar specularExponent, |
| 1065 | SkScalar cutoffAngle, |
| 1066 | SkColor lightColor, |
| 1067 | SkScalar surfaceScale, |
| 1068 | SkScalar kd, |
| 1069 | SkImageFilter* input, |
| 1070 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1071 | SkAutoTUnref<SkImageFilterLight> light( |
| 1072 | new SkSpotLight(location, target, specularExponent, cutoffAngle, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1073 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1074 | } |
| 1075 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1076 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 1077 | SkColor lightColor, |
| 1078 | SkScalar surfaceScale, |
| 1079 | SkScalar ks, |
| 1080 | SkScalar shine, |
| 1081 | SkImageFilter* input, |
| 1082 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1083 | SkAutoTUnref<SkImageFilterLight> light(new SkDistantLight(direction, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1084 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1085 | } |
| 1086 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1087 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 1088 | SkColor lightColor, |
| 1089 | SkScalar surfaceScale, |
| 1090 | SkScalar ks, |
| 1091 | SkScalar shine, |
| 1092 | SkImageFilter* input, |
| 1093 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1094 | SkAutoTUnref<SkImageFilterLight> light(new SkPointLight(location, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1095 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1096 | } |
| 1097 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1098 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 1099 | const SkPoint3& target, |
| 1100 | SkScalar specularExponent, |
| 1101 | SkScalar cutoffAngle, |
| 1102 | SkColor lightColor, |
| 1103 | SkScalar surfaceScale, |
| 1104 | SkScalar ks, |
| 1105 | SkScalar shine, |
| 1106 | SkImageFilter* input, |
| 1107 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1108 | SkAutoTUnref<SkImageFilterLight> light( |
| 1109 | new SkSpotLight(location, target, specularExponent, cutoffAngle, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1110 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1111 | } |
| 1112 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1113 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1114 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1115 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1116 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1117 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1118 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1119 | } |
| 1120 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1121 | /////////////////////////////////////////////////////////////////////////////// |
| 1122 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1123 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkImageFilterLight* light, |
| 1124 | SkScalar surfaceScale, |
| 1125 | SkScalar kd, |
| 1126 | SkImageFilter* input, |
| 1127 | const CropRect* cropRect) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1128 | if (nullptr == light) { |
| 1129 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1130 | } |
| 1131 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1132 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1133 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1134 | // According to the spec, kd can be any non-negative number : |
| 1135 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1136 | if (kd < 0) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1137 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1138 | } |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1139 | return new SkDiffuseLightingImageFilter(light, surfaceScale, kd, input, cropRect); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1140 | } |
| 1141 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1142 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1143 | SkScalar surfaceScale, |
| 1144 | SkScalar kd, |
| 1145 | SkImageFilter* input, |
| 1146 | const CropRect* cropRect) |
| 1147 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1148 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1149 | { |
| 1150 | } |
| 1151 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1152 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1153 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1154 | SkAutoTUnref<SkImageFilterLight> light(SkImageFilterLight::UnflattenLight(buffer)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1155 | SkScalar surfaceScale = buffer.readScalar(); |
| 1156 | SkScalar kd = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1157 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1158 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1159 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1160 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1161 | this->INHERITED::flatten(buffer); |
| 1162 | buffer.writeScalar(fKD); |
| 1163 | } |
| 1164 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1165 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1166 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1167 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1168 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1169 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1170 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1171 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | b9519f8 | 2015-10-15 12:15:13 -0700 | [diff] [blame] | 1172 | if (!this->filterInput(0, proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1173 | return false; |
| 1174 | } |
| 1175 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1176 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1177 | return false; |
| 1178 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1179 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1180 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1181 | return false; |
| 1182 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1183 | |
| 1184 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1185 | return false; |
| 1186 | } |
| 1187 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1188 | SkAutoLockPixels alp(src); |
| 1189 | if (!src.getPixels()) { |
| 1190 | return false; |
| 1191 | } |
| 1192 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1193 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1194 | return false; |
| 1195 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1196 | |
senorblanco | 7b7ecfc | 2015-08-26 14:26:40 -0700 | [diff] [blame] | 1197 | SkMatrix matrix(ctx.ctm()); |
| 1198 | matrix.postTranslate(SkIntToScalar(-srcOffset.x()), SkIntToScalar(-srcOffset.y())); |
| 1199 | SkAutoTUnref<SkImageFilterLight> transformedLight(light()->transform(matrix)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1200 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1201 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1202 | offset->fX = bounds.left(); |
| 1203 | offset->fY = bounds.top(); |
| 1204 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1205 | switch (transformedLight->type()) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1206 | case SkImageFilterLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1207 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, |
| 1208 | transformedLight, |
| 1209 | src, |
| 1210 | dst, |
| 1211 | surfaceScale(), |
| 1212 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1213 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1214 | case SkImageFilterLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1215 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, |
| 1216 | transformedLight, |
| 1217 | src, |
| 1218 | dst, |
| 1219 | surfaceScale(), |
| 1220 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1221 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1222 | case SkImageFilterLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1223 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, |
| 1224 | transformedLight, |
| 1225 | src, |
| 1226 | dst, |
| 1227 | surfaceScale(), |
| 1228 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1229 | break; |
| 1230 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1231 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1232 | return true; |
| 1233 | } |
| 1234 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1235 | #ifndef SK_IGNORE_TO_STRING |
| 1236 | void SkDiffuseLightingImageFilter::toString(SkString* str) const { |
| 1237 | str->appendf("SkDiffuseLightingImageFilter: ("); |
| 1238 | str->appendf("kD: %f\n", fKD); |
| 1239 | str->append(")"); |
| 1240 | } |
| 1241 | #endif |
| 1242 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1243 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1244 | GrFragmentProcessor* SkDiffuseLightingImageFilter::getFragmentProcessor( |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1245 | GrTexture* texture, |
| 1246 | const SkMatrix& matrix, |
| 1247 | const SkIRect&, |
| 1248 | BoundaryMode boundaryMode |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1249 | ) const { |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1250 | SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255)); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1251 | return GrDiffuseLightingEffect::Create(texture, this->light(), scale, matrix, this->kd(), |
| 1252 | boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1253 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1254 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1255 | |
| 1256 | /////////////////////////////////////////////////////////////////////////////// |
| 1257 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1258 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkImageFilterLight* light, |
| 1259 | SkScalar surfaceScale, |
| 1260 | SkScalar ks, |
| 1261 | SkScalar shininess, |
| 1262 | SkImageFilter* input, |
| 1263 | const CropRect* cropRect) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1264 | if (nullptr == light) { |
| 1265 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1266 | } |
| 1267 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1268 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1269 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1270 | // According to the spec, ks can be any non-negative number : |
| 1271 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1272 | if (ks < 0) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1273 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1274 | } |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1275 | return new SkSpecularLightingImageFilter(light, surfaceScale, ks, shininess, input, cropRect); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1276 | } |
| 1277 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1278 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1279 | SkScalar surfaceScale, |
| 1280 | SkScalar ks, |
| 1281 | SkScalar shininess, |
| 1282 | SkImageFilter* input, |
| 1283 | const CropRect* cropRect) |
| 1284 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1285 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1286 | fShininess(shininess) |
| 1287 | { |
| 1288 | } |
| 1289 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1290 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1291 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1292 | SkAutoTUnref<SkImageFilterLight> light(SkImageFilterLight::UnflattenLight(buffer)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1293 | SkScalar surfaceScale = buffer.readScalar(); |
| 1294 | SkScalar ks = buffer.readScalar(); |
| 1295 | SkScalar shine = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1296 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1297 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1298 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1299 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1300 | this->INHERITED::flatten(buffer); |
| 1301 | buffer.writeScalar(fKS); |
| 1302 | buffer.writeScalar(fShininess); |
| 1303 | } |
| 1304 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1305 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1306 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1307 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1308 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1309 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1310 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1311 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | b9519f8 | 2015-10-15 12:15:13 -0700 | [diff] [blame] | 1312 | if (!this->filterInput(0, proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1313 | return false; |
| 1314 | } |
| 1315 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1316 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1317 | return false; |
| 1318 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1319 | |
| 1320 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1321 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1322 | return false; |
| 1323 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1324 | |
| 1325 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1326 | return false; |
| 1327 | } |
| 1328 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1329 | SkAutoLockPixels alp(src); |
| 1330 | if (!src.getPixels()) { |
| 1331 | return false; |
| 1332 | } |
| 1333 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1334 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1335 | return false; |
| 1336 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1337 | |
| 1338 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1339 | offset->fX = bounds.left(); |
| 1340 | offset->fY = bounds.top(); |
senorblanco | 7b7ecfc | 2015-08-26 14:26:40 -0700 | [diff] [blame] | 1341 | SkMatrix matrix(ctx.ctm()); |
| 1342 | matrix.postTranslate(SkIntToScalar(-srcOffset.x()), SkIntToScalar(-srcOffset.y())); |
| 1343 | SkAutoTUnref<SkImageFilterLight> transformedLight(light()->transform(matrix)); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1344 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1345 | switch (transformedLight->type()) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1346 | case SkImageFilterLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1347 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, |
| 1348 | transformedLight, |
| 1349 | src, |
| 1350 | dst, |
| 1351 | surfaceScale(), |
| 1352 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1353 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1354 | case SkImageFilterLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1355 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, |
| 1356 | transformedLight, |
| 1357 | src, |
| 1358 | dst, |
| 1359 | surfaceScale(), |
| 1360 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1361 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1362 | case SkImageFilterLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1363 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, |
| 1364 | transformedLight, |
| 1365 | src, |
| 1366 | dst, |
| 1367 | surfaceScale(), |
| 1368 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1369 | break; |
| 1370 | } |
| 1371 | return true; |
| 1372 | } |
| 1373 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1374 | #ifndef SK_IGNORE_TO_STRING |
| 1375 | void SkSpecularLightingImageFilter::toString(SkString* str) const { |
| 1376 | str->appendf("SkSpecularLightingImageFilter: ("); |
| 1377 | str->appendf("kS: %f shininess: %f", fKS, fShininess); |
| 1378 | str->append(")"); |
| 1379 | } |
| 1380 | #endif |
| 1381 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1382 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1383 | GrFragmentProcessor* SkSpecularLightingImageFilter::getFragmentProcessor( |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1384 | GrTexture* texture, |
| 1385 | const SkMatrix& matrix, |
| 1386 | const SkIRect&, |
| 1387 | BoundaryMode boundaryMode) const { |
| 1388 | SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255)); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1389 | return GrSpecularLightingEffect::Create(texture, this->light(), scale, matrix, this->ks(), |
| 1390 | this->shininess(), boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1391 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1392 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1393 | |
| 1394 | /////////////////////////////////////////////////////////////////////////////// |
| 1395 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1396 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1397 | |
| 1398 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1399 | SkPoint3 random_point3(SkRandom* random) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1400 | return SkPoint3::Make(SkScalarToFloat(random->nextSScalar1()), |
| 1401 | SkScalarToFloat(random->nextSScalar1()), |
| 1402 | SkScalarToFloat(random->nextSScalar1())); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1403 | } |
| 1404 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1405 | SkImageFilterLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1406 | int type = random->nextULessThan(3); |
| 1407 | switch (type) { |
| 1408 | case 0: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1409 | return new SkDistantLight(random_point3(random), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1410 | } |
| 1411 | case 1: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1412 | return new SkPointLight(random_point3(random), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1413 | } |
| 1414 | case 2: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1415 | return new SkSpotLight(random_point3(random), random_point3(random), |
| 1416 | random->nextUScalar1(), random->nextUScalar1(), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1417 | } |
| 1418 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1419 | SkFAIL("Unexpected value."); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1420 | return nullptr; |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1421 | } |
| 1422 | } |
| 1423 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1424 | SkString emitNormalFunc(BoundaryMode mode, |
| 1425 | const char* pointToNormalName, |
| 1426 | const char* sobelFuncName) { |
| 1427 | SkString result; |
| 1428 | switch (mode) { |
| 1429 | case kTopLeft_BoundaryMode: |
| 1430 | result.printf("\treturn %s(%s(0.0, 0.0, m[4], m[5], m[7], m[8], %g),\n" |
| 1431 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1432 | "\t surfaceScale);\n", |
| 1433 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1434 | sobelFuncName, gTwoThirds); |
| 1435 | break; |
| 1436 | case kTop_BoundaryMode: |
| 1437 | result.printf("\treturn %s(%s(0.0, 0.0, m[3], m[5], m[6], 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, gOneThird, |
| 1441 | sobelFuncName, gOneHalf); |
| 1442 | break; |
| 1443 | case kTopRight_BoundaryMode: |
| 1444 | result.printf("\treturn %s(%s( 0.0, 0.0, m[3], m[4], m[6], m[7], %g),\n" |
| 1445 | "\t %s(m[3], m[6], m[4], m[7], 0.0, 0.0, %g),\n" |
| 1446 | "\t surfaceScale);\n", |
| 1447 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1448 | sobelFuncName, gTwoThirds); |
| 1449 | break; |
| 1450 | case kLeft_BoundaryMode: |
| 1451 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], m[7], m[8], %g),\n" |
| 1452 | "\t %s( 0.0, 0.0, m[1], m[7], m[2], m[8], %g),\n" |
| 1453 | "\t surfaceScale);\n", |
| 1454 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1455 | sobelFuncName, gOneThird); |
| 1456 | break; |
| 1457 | case kInterior_BoundaryMode: |
| 1458 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], %g),\n" |
| 1459 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], %g),\n" |
| 1460 | "\t surfaceScale);\n", |
| 1461 | pointToNormalName, sobelFuncName, gOneQuarter, |
| 1462 | sobelFuncName, gOneQuarter); |
| 1463 | break; |
| 1464 | case kRight_BoundaryMode: |
| 1465 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], m[6], m[7], %g),\n" |
| 1466 | "\t %s(m[0], m[6], m[1], m[7], 0.0, 0.0, %g),\n" |
| 1467 | "\t surfaceScale);\n", |
| 1468 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1469 | sobelFuncName, gOneThird); |
| 1470 | break; |
| 1471 | case kBottomLeft_BoundaryMode: |
| 1472 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], 0.0, 0.0, %g),\n" |
| 1473 | "\t %s( 0.0, 0.0, m[1], m[4], m[2], m[5], %g),\n" |
| 1474 | "\t surfaceScale);\n", |
| 1475 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1476 | sobelFuncName, gTwoThirds); |
| 1477 | break; |
| 1478 | case kBottom_BoundaryMode: |
| 1479 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], 0.0, 0.0, %g),\n" |
| 1480 | "\t %s(m[0], m[3], m[1], m[4], m[2], m[5], %g),\n" |
| 1481 | "\t surfaceScale);\n", |
| 1482 | pointToNormalName, sobelFuncName, gOneThird, |
| 1483 | sobelFuncName, gOneHalf); |
| 1484 | break; |
| 1485 | case kBottomRight_BoundaryMode: |
| 1486 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], 0.0, 0.0, %g),\n" |
| 1487 | "\t %s(m[0], m[3], m[1], m[4], 0.0, 0.0, %g),\n" |
| 1488 | "\t surfaceScale);\n", |
| 1489 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1490 | sobelFuncName, gTwoThirds); |
| 1491 | break; |
| 1492 | default: |
| 1493 | SkASSERT(false); |
| 1494 | break; |
| 1495 | } |
| 1496 | return result; |
| 1497 | } |
| 1498 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1499 | } |
| 1500 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1501 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1502 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1503 | GrGLLightingEffect(const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1504 | virtual ~GrGLLightingEffect(); |
| 1505 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1506 | void emitCode(EmitArgs&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1507 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1508 | static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1509 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1510 | protected: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1511 | /** |
| 1512 | * Subclasses of GrGLLightingEffect must call INHERITED::onSetData(); |
| 1513 | */ |
| 1514 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; |
| 1515 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1516 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1517 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1518 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1519 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1520 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1521 | UniformHandle fImageIncrementUni; |
| 1522 | UniformHandle fSurfaceScaleUni; |
| 1523 | GrGLLight* fLight; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1524 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1525 | }; |
| 1526 | |
| 1527 | /////////////////////////////////////////////////////////////////////////////// |
| 1528 | |
| 1529 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1530 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1531 | GrGLDiffuseLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1532 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1533 | |
| 1534 | protected: |
| 1535 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1536 | |
| 1537 | private: |
| 1538 | typedef GrGLLightingEffect INHERITED; |
| 1539 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1540 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1541 | }; |
| 1542 | |
| 1543 | /////////////////////////////////////////////////////////////////////////////// |
| 1544 | |
| 1545 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1546 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1547 | GrGLSpecularLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1548 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1549 | |
| 1550 | protected: |
| 1551 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1552 | |
| 1553 | private: |
| 1554 | typedef GrGLLightingEffect INHERITED; |
| 1555 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1556 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1557 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1558 | }; |
| 1559 | |
| 1560 | /////////////////////////////////////////////////////////////////////////////// |
| 1561 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1562 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1563 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1564 | SkScalar surfaceScale, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1565 | const SkMatrix& matrix, |
| 1566 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1567 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1568 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1569 | , fSurfaceScale(surfaceScale) |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1570 | , fFilterMatrix(matrix) |
| 1571 | , fBoundaryMode(boundaryMode) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1572 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1573 | if (light->requiresFragmentPosition()) { |
| 1574 | this->setWillReadFragmentPosition(); |
| 1575 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1576 | } |
| 1577 | |
| 1578 | GrLightingEffect::~GrLightingEffect() { |
| 1579 | fLight->unref(); |
| 1580 | } |
| 1581 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1582 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1583 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 1584 | return fLight->isEqual(*s.fLight) && |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1585 | fSurfaceScale == s.fSurfaceScale && |
| 1586 | fBoundaryMode == s.fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1587 | } |
| 1588 | |
| 1589 | /////////////////////////////////////////////////////////////////////////////// |
| 1590 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1591 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1592 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1593 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1594 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1595 | SkScalar kd, |
| 1596 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1597 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), fKD(kd) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1598 | this->initClassID<GrDiffuseLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1599 | } |
| 1600 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1601 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1602 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1603 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1604 | this->kd() == s.kd(); |
| 1605 | } |
| 1606 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1607 | void GrDiffuseLightingEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1608 | GrProcessorKeyBuilder* b) const { |
| 1609 | GrGLDiffuseLightingEffect::GenKey(*this, caps, b); |
| 1610 | } |
| 1611 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1612 | GrGLFragmentProcessor* GrDiffuseLightingEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1613 | return new GrGLDiffuseLightingEffect(*this); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1614 | } |
| 1615 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1616 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1617 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1618 | const GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1619 | SkScalar surfaceScale = d->fRandom->nextSScalar1(); |
| 1620 | SkScalar kd = d->fRandom->nextUScalar1(); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1621 | SkAutoTUnref<SkImageFilterLight> light(create_random_light(d->fRandom)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1622 | SkMatrix matrix; |
| 1623 | for (int i = 0; i < 9; i++) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1624 | matrix[i] = d->fRandom->nextUScalar1(); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1625 | } |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1626 | BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1627 | return GrDiffuseLightingEffect::Create(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1628 | light, surfaceScale, matrix, kd, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1629 | } |
| 1630 | |
| 1631 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1632 | /////////////////////////////////////////////////////////////////////////////// |
| 1633 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1634 | GrGLLightingEffect::GrGLLightingEffect(const GrProcessor& fp) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1635 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1636 | fLight = m.light()->createGLLight(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1637 | fBoundaryMode = m.boundaryMode(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1638 | } |
| 1639 | |
| 1640 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1641 | delete fLight; |
| 1642 | } |
| 1643 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1644 | void GrGLLightingEffect::emitCode(EmitArgs& args) { |
| 1645 | fImageIncrementUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1646 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1647 | "ImageIncrement"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1648 | fSurfaceScaleUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1649 | kFloat_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1650 | "SurfaceScale"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1651 | fLight->emitLightColorUniform(args.fBuilder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1652 | SkString lightFunc; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1653 | this->emitLightFunc(args.fBuilder, &lightFunc); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1654 | static const GrGLShaderVar gSobelArgs[] = { |
| 1655 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1656 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1657 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1658 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1659 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1660 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1661 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1662 | }; |
| 1663 | SkString sobelFuncName; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1664 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 1665 | SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1666 | |
| 1667 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1668 | "sobel", |
| 1669 | SK_ARRAY_COUNT(gSobelArgs), |
| 1670 | gSobelArgs, |
| 1671 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1672 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1673 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1674 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1675 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1676 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1677 | }; |
| 1678 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1679 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1680 | "pointToNormal", |
| 1681 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1682 | gPointToNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1683 | "\treturn normalize(vec3(-x * scale, -y * scale, 1));\n", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1684 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1685 | |
| 1686 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1687 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1688 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1689 | }; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1690 | SkString normalBody = emitNormalFunc(fBoundaryMode, |
| 1691 | pointToNormalName.c_str(), |
| 1692 | sobelFuncName.c_str()); |
| 1693 | SkString normalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1694 | fsBuilder->emitFunction(kVec3f_GrSLType, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1695 | "normal", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1696 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1697 | gInteriorNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1698 | normalBody.c_str(), |
| 1699 | &normalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1700 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1701 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1702 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1703 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1704 | const char* imgInc = args.fBuilder->getUniformCStr(fImageIncrementUni); |
| 1705 | const char* surfScale = args.fBuilder->getUniformCStr(fSurfaceScaleUni); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1706 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1707 | int index = 0; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1708 | for (int dy = 1; dy >= -1; dy--) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1709 | for (int dx = -1; dx <= 1; dx++) { |
| 1710 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1711 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1712 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1713 | fsBuilder->appendTextureLookup(args.fSamplers[0], texCoords.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1714 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1715 | } |
| 1716 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1717 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1718 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1719 | arg.appendf("%s * m[4]", surfScale); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1720 | fLight->emitSurfaceToLight(args.fBuilder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1721 | fsBuilder->codeAppend(";\n"); |
| 1722 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1723 | args.fOutputColor, lightFunc.c_str(), normalName.c_str(), surfScale); |
| 1724 | fLight->emitLightColor(args.fBuilder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1725 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1726 | SkString modulate; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1727 | GrGLSLMulVarBy4f(&modulate, args.fOutputColor, args.fInputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1728 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1729 | } |
| 1730 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1731 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1732 | const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1733 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
| 1734 | b->add32(lighting.boundaryMode() << 2 | lighting.light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1735 | } |
| 1736 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1737 | void GrGLLightingEffect::onSetData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1738 | const GrProcessor& proc) { |
| 1739 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1740 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1741 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1742 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1743 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1744 | SkAutoTUnref<SkImageFilterLight> transformedLight( |
| 1745 | lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1746 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1747 | } |
| 1748 | |
| 1749 | /////////////////////////////////////////////////////////////////////////////// |
| 1750 | |
| 1751 | /////////////////////////////////////////////////////////////////////////////// |
| 1752 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1753 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrProcessor& proc) |
| 1754 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1755 | } |
| 1756 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1757 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1758 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1759 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1760 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1761 | "KD", &kd); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1762 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1763 | static const GrGLShaderVar gLightArgs[] = { |
| 1764 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1765 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1766 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1767 | }; |
| 1768 | SkString lightBody; |
| 1769 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1770 | 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] | 1771 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1772 | "light", |
| 1773 | SK_ARRAY_COUNT(gLightArgs), |
| 1774 | gLightArgs, |
| 1775 | lightBody.c_str(), |
| 1776 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1777 | } |
| 1778 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1779 | void GrGLDiffuseLightingEffect::onSetData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1780 | const GrProcessor& proc) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1781 | INHERITED::onSetData(pdman, proc); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1782 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1783 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1784 | } |
| 1785 | |
| 1786 | /////////////////////////////////////////////////////////////////////////////// |
| 1787 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1788 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1789 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1790 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1791 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1792 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1793 | SkScalar shininess, |
| 1794 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1795 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode) |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1796 | , fKS(ks) |
| 1797 | , fShininess(shininess) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1798 | this->initClassID<GrSpecularLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1799 | } |
| 1800 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1801 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1802 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1803 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1804 | this->ks() == s.ks() && |
| 1805 | this->shininess() == s.shininess(); |
| 1806 | } |
| 1807 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1808 | void GrSpecularLightingEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1809 | GrProcessorKeyBuilder* b) const { |
| 1810 | GrGLSpecularLightingEffect::GenKey(*this, caps, b); |
| 1811 | } |
| 1812 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1813 | GrGLFragmentProcessor* GrSpecularLightingEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1814 | return new GrGLSpecularLightingEffect(*this); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1815 | } |
| 1816 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1817 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1818 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1819 | const GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1820 | SkScalar surfaceScale = d->fRandom->nextSScalar1(); |
| 1821 | SkScalar ks = d->fRandom->nextUScalar1(); |
| 1822 | SkScalar shininess = d->fRandom->nextUScalar1(); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1823 | SkAutoTUnref<SkImageFilterLight> light(create_random_light(d->fRandom)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1824 | SkMatrix matrix; |
| 1825 | for (int i = 0; i < 9; i++) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1826 | matrix[i] = d->fRandom->nextUScalar1(); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1827 | } |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1828 | BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1829 | return GrSpecularLightingEffect::Create(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1830 | light, surfaceScale, matrix, ks, shininess, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1831 | } |
| 1832 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1833 | /////////////////////////////////////////////////////////////////////////////// |
| 1834 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1835 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrProcessor& proc) |
| 1836 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1837 | } |
| 1838 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1839 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1840 | const char* ks; |
| 1841 | const char* shininess; |
| 1842 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1843 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1844 | kFloat_GrSLType, kDefault_GrSLPrecision, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1845 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1846 | kFloat_GrSLType, |
| 1847 | kDefault_GrSLPrecision, |
| 1848 | "Shininess", |
| 1849 | &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1850 | |
| 1851 | static const GrGLShaderVar gLightArgs[] = { |
| 1852 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1853 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1854 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1855 | }; |
| 1856 | SkString lightBody; |
| 1857 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1858 | 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] | 1859 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1860 | 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] | 1861 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1862 | "light", |
| 1863 | SK_ARRAY_COUNT(gLightArgs), |
| 1864 | gLightArgs, |
| 1865 | lightBody.c_str(), |
| 1866 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1867 | } |
| 1868 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1869 | void GrGLSpecularLightingEffect::onSetData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1870 | const GrProcessor& effect) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1871 | INHERITED::onSetData(pdman, effect); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1872 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1873 | pdman.set1f(fKSUni, spec.ks()); |
| 1874 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1875 | } |
| 1876 | |
| 1877 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1878 | void GrGLLight::emitLightColorUniform(GrGLFPBuilder* builder) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1879 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1880 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1881 | "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1882 | } |
| 1883 | |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1884 | void GrGLLight::emitLightColor(GrGLFPBuilder* builder, const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1885 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1886 | } |
| 1887 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1888 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
| 1889 | const SkImageFilterLight* light) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1890 | setUniformPoint3(pdman, fColorUni, |
| 1891 | light->color().makeScale(SkScalarInvert(SkIntToScalar(255)))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1892 | } |
| 1893 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1894 | /////////////////////////////////////////////////////////////////////////////// |
| 1895 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1896 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1897 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1898 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1899 | SkASSERT(light->type() == SkImageFilterLight::kDistant_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1900 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1901 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1902 | } |
| 1903 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1904 | void GrGLDistantLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1905 | const char* dir; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1906 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1907 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1908 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1909 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1910 | } |
| 1911 | |
| 1912 | /////////////////////////////////////////////////////////////////////////////// |
| 1913 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1914 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1915 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1916 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1917 | SkASSERT(light->type() == SkImageFilterLight::kPoint_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1918 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1919 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1920 | } |
| 1921 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1922 | void GrGLPointLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1923 | const char* loc; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1924 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1925 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1926 | "LightLocation", &loc); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1927 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1928 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1929 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1930 | } |
| 1931 | |
| 1932 | /////////////////////////////////////////////////////////////////////////////// |
| 1933 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1934 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1935 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1936 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1937 | SkASSERT(light->type() == SkImageFilterLight::kSpot_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1938 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1939 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1940 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1941 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1942 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1943 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1944 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1945 | } |
| 1946 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1947 | void GrGLSpotLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1948 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1949 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1950 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1951 | "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1952 | |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1953 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1954 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1955 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1956 | } |
| 1957 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1958 | void GrGLSpotLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1959 | const char *surfaceToLight) { |
| 1960 | |
| 1961 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1962 | |
| 1963 | const char* exponent; |
| 1964 | const char* cosInner; |
| 1965 | const char* cosOuter; |
| 1966 | const char* coneScale; |
| 1967 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1968 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1969 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1970 | "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1971 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1972 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1973 | "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1974 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1975 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1976 | "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1977 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1978 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1979 | "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1980 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1981 | kVec3f_GrSLType, kDefault_GrSLPrecision, "S", &s); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1982 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1983 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1984 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1985 | }; |
| 1986 | SkString lightColorBody; |
| 1987 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1988 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1989 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1990 | lightColorBody.appendf("\t}\n"); |
| 1991 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1992 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1993 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1994 | color, cosOuter, coneScale); |
| 1995 | lightColorBody.appendf("\t}\n"); |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame^] | 1996 | lightColorBody.appendf("\treturn %s;\n", color); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1997 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1998 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1999 | "lightColor", |
| 2000 | SK_ARRAY_COUNT(gLightColorArgs), |
| 2001 | gLightColorArgs, |
| 2002 | lightColorBody.c_str(), |
| 2003 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 2004 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 2005 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 2006 | } |
| 2007 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 2008 | #endif |
| 2009 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2010 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 2011 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 2012 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2013 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |