senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkLightingImageFilter.h" |
| 9 | #include "SkBitmap.h" |
| 10 | #include "SkColorPriv.h" |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 11 | #include "SkDevice.h" |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 12 | #include "SkPoint3.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 13 | #include "SkReadBuffer.h" |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 14 | #include "SkTypes.h" |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 15 | #include "SkWriteBuffer.h" |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 16 | |
| 17 | #if SK_SUPPORT_GPU |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 18 | #include "GrContext.h" |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 19 | #include "GrDrawContext.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 20 | #include "GrFragmentProcessor.h" |
| 21 | #include "GrInvariantOutput.h" |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 22 | #include "GrPaint.h" |
robertphillips | 1de87df | 2016-01-14 06:03:29 -0800 | [diff] [blame] | 23 | #include "SkGr.h" |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 24 | #include "effects/GrSingleTextureEffect.h" |
egdaniel | 64c4728 | 2015-11-13 06:54:19 -0800 | [diff] [blame] | 25 | #include "glsl/GrGLSLFragmentProcessor.h" |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame] | 26 | #include "glsl/GrGLSLFragmentShaderBuilder.h" |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 27 | #include "glsl/GrGLSLProgramDataManager.h" |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 28 | #include "glsl/GrGLSLUniformHandler.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 29 | |
| 30 | class GrGLDiffuseLightingEffect; |
| 31 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 32 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 33 | // For brevity |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 34 | typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 35 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 36 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 37 | namespace { |
| 38 | |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 39 | const SkScalar gOneThird = SkIntToScalar(1) / 3; |
| 40 | const SkScalar gTwoThirds = SkIntToScalar(2) / 3; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 41 | const SkScalar gOneHalf = 0.5f; |
| 42 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 43 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 44 | #if SK_SUPPORT_GPU |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 45 | void setUniformPoint3(const GrGLSLProgramDataManager& pdman, UniformHandle uni, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 46 | const SkPoint3& point) { |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 47 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(float)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 48 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 49 | } |
| 50 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 51 | void setUniformNormal3(const GrGLSLProgramDataManager& pdman, UniformHandle uni, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 52 | const SkPoint3& point) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 53 | setUniformPoint3(pdman, uni, point); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 54 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 55 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 56 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 57 | // Shift matrix components to the left, as we advance pixels to the right. |
| 58 | inline void shiftMatrixLeft(int m[9]) { |
| 59 | m[0] = m[1]; |
| 60 | m[3] = m[4]; |
| 61 | m[6] = m[7]; |
| 62 | m[1] = m[2]; |
| 63 | m[4] = m[5]; |
| 64 | m[7] = m[8]; |
| 65 | } |
| 66 | |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 67 | static inline void fast_normalize(SkPoint3* vector) { |
| 68 | // add a tiny bit so we don't have to worry about divide-by-zero |
| 69 | SkScalar magSq = vector->dot(*vector) + SK_ScalarNearlyZero; |
| 70 | SkScalar scale = sk_float_rsqrt(magSq); |
| 71 | vector->fX *= scale; |
| 72 | vector->fY *= scale; |
| 73 | vector->fZ *= scale; |
| 74 | } |
| 75 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 76 | class DiffuseLightingType { |
| 77 | public: |
| 78 | DiffuseLightingType(SkScalar kd) |
| 79 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 80 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 81 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 82 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 83 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 84 | SkPoint3 color = lightColor.makeScale(colorScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 85 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 86 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 87 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 88 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 89 | } |
| 90 | private: |
| 91 | SkScalar fKD; |
| 92 | }; |
| 93 | |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 94 | static SkScalar max_component(const SkPoint3& p) { |
| 95 | return p.x() > p.y() ? (p.x() > p.z() ? p.x() : p.z()) : (p.y() > p.z() ? p.y() : p.z()); |
| 96 | } |
| 97 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 98 | class SpecularLightingType { |
| 99 | public: |
| 100 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 101 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 102 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 103 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 104 | SkPoint3 halfDir(surfaceTolight); |
| 105 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 106 | fast_normalize(&halfDir); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 107 | SkScalar colorScale = SkScalarMul(fKS, |
| 108 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 109 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 110 | SkPoint3 color = lightColor.makeScale(colorScale); |
| 111 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(max_component(color)), 255), |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 112 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 113 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 114 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 115 | } |
| 116 | private: |
| 117 | SkScalar fKS; |
| 118 | SkScalar fShininess; |
| 119 | }; |
| 120 | |
| 121 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 122 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 123 | } |
| 124 | |
| 125 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 126 | SkPoint3 vector = SkPoint3::Make(SkScalarMul(-x, surfaceScale), |
| 127 | SkScalarMul(-y, surfaceScale), |
| 128 | SK_Scalar1); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 129 | fast_normalize(&vector); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 130 | return vector; |
| 131 | } |
| 132 | |
| 133 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 134 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 135 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 136 | surfaceScale); |
| 137 | } |
| 138 | |
| 139 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 140 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 141 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 142 | surfaceScale); |
| 143 | } |
| 144 | |
| 145 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 146 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 147 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 148 | surfaceScale); |
| 149 | } |
| 150 | |
| 151 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 152 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 153 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 154 | surfaceScale); |
| 155 | } |
| 156 | |
| 157 | |
| 158 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 159 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 160 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 161 | surfaceScale); |
| 162 | } |
| 163 | |
| 164 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 165 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 166 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 167 | surfaceScale); |
| 168 | } |
| 169 | |
| 170 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 171 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 172 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 173 | surfaceScale); |
| 174 | } |
| 175 | |
| 176 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 177 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 178 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 179 | surfaceScale); |
| 180 | } |
| 181 | |
| 182 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 183 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 184 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 185 | surfaceScale); |
| 186 | } |
| 187 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 188 | template <class LightingType, class LightType> void lightBitmap(const LightingType& lightingType, |
| 189 | const SkImageFilterLight* light, |
| 190 | const SkBitmap& src, |
| 191 | SkBitmap* dst, |
| 192 | SkScalar surfaceScale, |
| 193 | const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 194 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 195 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 196 | int left = bounds.left(), right = bounds.right(); |
| 197 | int bottom = bounds.bottom(); |
| 198 | int y = bounds.top(); |
| 199 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 200 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 201 | int x = left; |
| 202 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 203 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 204 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 205 | m[4] = SkGetPackedA32(*row1++); |
| 206 | m[5] = SkGetPackedA32(*row1++); |
| 207 | m[7] = SkGetPackedA32(*row2++); |
| 208 | m[8] = SkGetPackedA32(*row2++); |
| 209 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 210 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 211 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 212 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 213 | { |
| 214 | shiftMatrixLeft(m); |
| 215 | m[5] = SkGetPackedA32(*row1++); |
| 216 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 217 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 218 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 219 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 220 | } |
| 221 | shiftMatrixLeft(m); |
| 222 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 223 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 224 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 225 | } |
| 226 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 227 | for (++y; y < bottom - 1; ++y) { |
| 228 | int x = left; |
| 229 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 230 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 231 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 232 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 233 | m[1] = SkGetPackedA32(*row0++); |
| 234 | m[2] = SkGetPackedA32(*row0++); |
| 235 | m[4] = SkGetPackedA32(*row1++); |
| 236 | m[5] = SkGetPackedA32(*row1++); |
| 237 | m[7] = SkGetPackedA32(*row2++); |
| 238 | m[8] = SkGetPackedA32(*row2++); |
| 239 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 240 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 241 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 242 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 243 | shiftMatrixLeft(m); |
| 244 | m[2] = SkGetPackedA32(*row0++); |
| 245 | m[5] = SkGetPackedA32(*row1++); |
| 246 | m[8] = SkGetPackedA32(*row2++); |
| 247 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 248 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 249 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 250 | } |
| 251 | shiftMatrixLeft(m); |
| 252 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 253 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 254 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 258 | int x = left; |
| 259 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 260 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 261 | int m[9]; |
| 262 | m[1] = SkGetPackedA32(*row0++); |
| 263 | m[2] = SkGetPackedA32(*row0++); |
| 264 | m[4] = SkGetPackedA32(*row1++); |
| 265 | m[5] = SkGetPackedA32(*row1++); |
| 266 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 267 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 268 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 269 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 270 | { |
| 271 | shiftMatrixLeft(m); |
| 272 | m[2] = SkGetPackedA32(*row0++); |
| 273 | m[5] = SkGetPackedA32(*row1++); |
| 274 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 275 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 276 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 277 | } |
| 278 | shiftMatrixLeft(m); |
| 279 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 280 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 281 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 282 | } |
| 283 | } |
| 284 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 285 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 286 | SkPoint3 point; |
| 287 | point.fX = buffer.readScalar(); |
| 288 | point.fY = buffer.readScalar(); |
| 289 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 290 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 291 | SkScalarIsFinite(point.fY) && |
| 292 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 293 | return point; |
| 294 | }; |
| 295 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 296 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 297 | buffer.writeScalar(point.fX); |
| 298 | buffer.writeScalar(point.fY); |
| 299 | buffer.writeScalar(point.fZ); |
| 300 | }; |
| 301 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 302 | enum BoundaryMode { |
| 303 | kTopLeft_BoundaryMode, |
| 304 | kTop_BoundaryMode, |
| 305 | kTopRight_BoundaryMode, |
| 306 | kLeft_BoundaryMode, |
| 307 | kInterior_BoundaryMode, |
| 308 | kRight_BoundaryMode, |
| 309 | kBottomLeft_BoundaryMode, |
| 310 | kBottom_BoundaryMode, |
| 311 | kBottomRight_BoundaryMode, |
| 312 | |
| 313 | kBoundaryModeCount, |
| 314 | }; |
| 315 | |
| 316 | class SkLightingImageFilterInternal : public SkLightingImageFilter { |
| 317 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 318 | SkLightingImageFilterInternal(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 319 | SkScalar surfaceScale, |
| 320 | SkImageFilter* input, |
| 321 | const CropRect* cropRect) |
| 322 | : INHERITED(light, surfaceScale, input, cropRect) {} |
| 323 | |
| 324 | #if SK_SUPPORT_GPU |
| 325 | bool canFilterImageGPU() const override { return true; } |
| 326 | bool filterImageGPU(Proxy*, const SkBitmap& src, const Context&, |
| 327 | SkBitmap* result, SkIPoint* offset) const override; |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 328 | virtual GrFragmentProcessor* getFragmentProcessor(GrTexture*, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 329 | const SkMatrix&, |
| 330 | const SkIRect& bounds, |
| 331 | BoundaryMode boundaryMode) const = 0; |
| 332 | #endif |
| 333 | private: |
| 334 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 335 | void drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 336 | GrTexture* src, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 337 | const SkMatrix& matrix, |
| 338 | const GrClip& clip, |
| 339 | const SkRect& dstRect, |
| 340 | BoundaryMode boundaryMode, |
| 341 | const SkIRect& bounds) const; |
| 342 | #endif |
| 343 | typedef SkLightingImageFilter INHERITED; |
| 344 | }; |
| 345 | |
| 346 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 347 | void SkLightingImageFilterInternal::drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 348 | GrTexture* src, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 349 | const SkMatrix& matrix, |
| 350 | const GrClip& clip, |
| 351 | const SkRect& dstRect, |
| 352 | BoundaryMode boundaryMode, |
| 353 | const SkIRect& bounds) const { |
| 354 | SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 355 | GrPaint paint; |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 356 | GrFragmentProcessor* fp = this->getFragmentProcessor(src, matrix, bounds, boundaryMode); |
bsalomon | ac856c9 | 2015-08-27 06:30:17 -0700 | [diff] [blame] | 357 | paint.addColorFragmentProcessor(fp)->unref(); |
egdaniel | c4b7272 | 2015-11-23 13:20:41 -0800 | [diff] [blame] | 358 | paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode); |
bsalomon | a2e69fc | 2015-11-05 10:41:43 -0800 | [diff] [blame] | 359 | drawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 360 | } |
| 361 | |
| 362 | bool SkLightingImageFilterInternal::filterImageGPU(Proxy* proxy, |
| 363 | const SkBitmap& src, |
| 364 | const Context& ctx, |
| 365 | SkBitmap* result, |
| 366 | SkIPoint* offset) const { |
| 367 | SkBitmap input = src; |
| 368 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | 9a70b6e | 2015-10-16 11:35:14 -0700 | [diff] [blame] | 369 | if (!this->filterInputGPU(0, proxy, src, ctx, &input, &srcOffset)) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 370 | return false; |
| 371 | } |
| 372 | SkIRect bounds; |
| 373 | if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) { |
| 374 | return false; |
| 375 | } |
| 376 | SkRect dstRect = SkRect::MakeWH(SkIntToScalar(bounds.width()), |
| 377 | SkIntToScalar(bounds.height())); |
| 378 | GrTexture* srcTexture = input.getTexture(); |
| 379 | GrContext* context = srcTexture->getContext(); |
| 380 | |
| 381 | GrSurfaceDesc desc; |
| 382 | desc.fFlags = kRenderTarget_GrSurfaceFlag, |
| 383 | desc.fWidth = bounds.width(); |
| 384 | desc.fHeight = bounds.height(); |
| 385 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 386 | |
reed | 4e23cda | 2016-01-11 10:56:59 -0800 | [diff] [blame] | 387 | SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc)); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 388 | if (!dst) { |
| 389 | return false; |
| 390 | } |
| 391 | |
| 392 | // setup new clip |
| 393 | GrClip clip(dstRect); |
| 394 | |
| 395 | offset->fX = bounds.left(); |
| 396 | offset->fY = bounds.top(); |
| 397 | SkMatrix matrix(ctx.ctm()); |
| 398 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 399 | bounds.offset(-srcOffset); |
| 400 | SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1); |
| 401 | SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1); |
| 402 | SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1); |
| 403 | SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2); |
| 404 | SkRect interior = dstRect.makeInset(1, 1); |
| 405 | SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2); |
| 406 | SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1); |
| 407 | SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1); |
| 408 | SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 409 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 410 | SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget())); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 411 | if (!drawContext) { |
| 412 | return false; |
| 413 | } |
| 414 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 415 | this->drawRect(drawContext, srcTexture, matrix, clip, topLeft, kTopLeft_BoundaryMode, bounds); |
| 416 | this->drawRect(drawContext, srcTexture, matrix, clip, top, kTop_BoundaryMode, bounds); |
| 417 | this->drawRect(drawContext, srcTexture, matrix, clip, topRight, kTopRight_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 418 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 419 | this->drawRect(drawContext, srcTexture, matrix, clip, left, kLeft_BoundaryMode, bounds); |
| 420 | this->drawRect(drawContext, srcTexture, matrix, clip, interior, kInterior_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 421 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 422 | this->drawRect(drawContext, srcTexture, matrix, clip, right, kRight_BoundaryMode, bounds); |
| 423 | this->drawRect(drawContext, srcTexture, matrix, clip, bottomLeft, kBottomLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 424 | bounds); |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 425 | this->drawRect(drawContext, srcTexture, matrix, clip, bottom, kBottom_BoundaryMode, bounds); |
| 426 | this->drawRect(drawContext, srcTexture, matrix, clip, bottomRight, |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 427 | kBottomRight_BoundaryMode, bounds); |
robertphillips | 1de87df | 2016-01-14 06:03:29 -0800 | [diff] [blame] | 428 | GrWrapTextureInBitmap(dst, bounds.width(), bounds.height(), false, result); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 429 | return true; |
| 430 | } |
| 431 | #endif |
| 432 | |
| 433 | class SkDiffuseLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 434 | public: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 435 | static SkImageFilter* Create(SkImageFilterLight* light, SkScalar surfaceScale, |
| 436 | SkScalar kd, SkImageFilter*, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 437 | const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 438 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 439 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 440 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 441 | SkScalar kd() const { return fKD; } |
| 442 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 443 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 444 | SkDiffuseLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 445 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 446 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 447 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 448 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 449 | #if SK_SUPPORT_GPU |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 450 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, const SkIRect& bounds, |
| 451 | BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 452 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 453 | |
| 454 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 455 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 456 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 457 | SkScalar fKD; |
| 458 | }; |
| 459 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 460 | class SkSpecularLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 461 | public: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 462 | static SkImageFilter* Create(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 463 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 464 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 465 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 466 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 467 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 468 | SkScalar ks() const { return fKS; } |
| 469 | SkScalar shininess() const { return fShininess; } |
| 470 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 471 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 472 | SkSpecularLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 473 | SkScalar shininess, SkImageFilter* input, const CropRect*); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 474 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 475 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 476 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 477 | #if SK_SUPPORT_GPU |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 478 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, const SkIRect& bounds, |
| 479 | BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 480 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 481 | |
| 482 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 483 | SkScalar fKS; |
| 484 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 485 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 486 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 487 | }; |
| 488 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 489 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 490 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 491 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 492 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 493 | GrLightingEffect(GrTexture* texture, const SkImageFilterLight* light, SkScalar surfaceScale, |
| 494 | const SkMatrix& matrix, BoundaryMode boundaryMode); |
robertphillips | e004bfc | 2015-11-16 09:06:59 -0800 | [diff] [blame] | 495 | ~GrLightingEffect() override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 496 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 497 | const SkImageFilterLight* light() const { return fLight; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 498 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 499 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 500 | BoundaryMode boundaryMode() const { return fBoundaryMode; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 501 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 502 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 503 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 504 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 505 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 506 | // lighting shaders are complicated. We just throw up our hands. |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 507 | inout->mulByUnknownFourComponents(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 508 | } |
| 509 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 510 | private: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 511 | const SkImageFilterLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 512 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 513 | SkMatrix fFilterMatrix; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 514 | BoundaryMode fBoundaryMode; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 515 | |
| 516 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 517 | }; |
| 518 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 519 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 520 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 521 | static GrFragmentProcessor* Create(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 522 | const SkImageFilterLight* light, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 523 | SkScalar surfaceScale, |
| 524 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 525 | SkScalar kd, |
| 526 | BoundaryMode boundaryMode) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 527 | return new GrDiffuseLightingEffect(texture, light, surfaceScale, matrix, kd, boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 528 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 529 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 530 | const char* name() const override { return "DiffuseLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 531 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 532 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 533 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 534 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 535 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 536 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 537 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 538 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 539 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 540 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 541 | GrDiffuseLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 542 | const SkImageFilterLight* light, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 543 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 544 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 545 | SkScalar kd, |
| 546 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 547 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 548 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 549 | typedef GrLightingEffect INHERITED; |
| 550 | SkScalar fKD; |
| 551 | }; |
| 552 | |
| 553 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 554 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 555 | static GrFragmentProcessor* Create(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 556 | const SkImageFilterLight* light, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 557 | SkScalar surfaceScale, |
| 558 | const SkMatrix& matrix, |
| 559 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 560 | SkScalar shininess, |
| 561 | BoundaryMode boundaryMode) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 562 | return new GrSpecularLightingEffect(texture, light, surfaceScale, matrix, ks, shininess, |
| 563 | boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 564 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 565 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 566 | const char* name() const override { return "SpecularLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 567 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 568 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 569 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 570 | SkScalar ks() const { return fKS; } |
| 571 | SkScalar shininess() const { return fShininess; } |
| 572 | |
| 573 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 574 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 575 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 576 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 577 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 578 | GrSpecularLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 579 | const SkImageFilterLight* light, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 580 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 581 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 582 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 583 | SkScalar shininess, |
| 584 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 585 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 586 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 587 | typedef GrLightingEffect INHERITED; |
| 588 | SkScalar fKS; |
| 589 | SkScalar fShininess; |
| 590 | }; |
| 591 | |
| 592 | /////////////////////////////////////////////////////////////////////////////// |
| 593 | |
| 594 | class GrGLLight { |
| 595 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 596 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 597 | |
| 598 | /** |
| 599 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 600 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 601 | */ |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 602 | void emitLightColorUniform(GrGLSLUniformHandler*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 603 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 604 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 605 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 606 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 607 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 608 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 609 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 610 | * and so this function only needs to be overridden if the light color varies spatially. |
| 611 | */ |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 612 | virtual void emitSurfaceToLight(GrGLSLUniformHandler*, |
| 613 | GrGLSLFragmentBuilder*, |
| 614 | const char* z) = 0; |
| 615 | virtual void emitLightColor(GrGLSLUniformHandler*, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 616 | GrGLSLFragmentBuilder*, |
| 617 | const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 618 | |
| 619 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 620 | // INHERITED::setData(). |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 621 | virtual void setData(const GrGLSLProgramDataManager&, const SkImageFilterLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 622 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 623 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 624 | /** |
| 625 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 626 | * function. |
| 627 | */ |
| 628 | UniformHandle lightColorUni() const { return fColorUni; } |
| 629 | |
| 630 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 631 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 632 | |
| 633 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 634 | }; |
| 635 | |
| 636 | /////////////////////////////////////////////////////////////////////////////// |
| 637 | |
| 638 | class GrGLDistantLight : public GrGLLight { |
| 639 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 640 | virtual ~GrGLDistantLight() {} |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 641 | void setData(const GrGLSLProgramDataManager&, const SkImageFilterLight* light) const override; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 642 | void emitSurfaceToLight(GrGLSLUniformHandler*, GrGLSLFragmentBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 643 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 644 | private: |
| 645 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 646 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 647 | }; |
| 648 | |
| 649 | /////////////////////////////////////////////////////////////////////////////// |
| 650 | |
| 651 | class GrGLPointLight : public GrGLLight { |
| 652 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 653 | virtual ~GrGLPointLight() {} |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 654 | void setData(const GrGLSLProgramDataManager&, const SkImageFilterLight* light) const override; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 655 | void emitSurfaceToLight(GrGLSLUniformHandler*, GrGLSLFragmentBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 656 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 657 | private: |
| 658 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 659 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 660 | }; |
| 661 | |
| 662 | /////////////////////////////////////////////////////////////////////////////// |
| 663 | |
| 664 | class GrGLSpotLight : public GrGLLight { |
| 665 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 666 | virtual ~GrGLSpotLight() {} |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 667 | void setData(const GrGLSLProgramDataManager&, const SkImageFilterLight* light) const override; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 668 | void emitSurfaceToLight(GrGLSLUniformHandler*, GrGLSLFragmentBuilder*, const char* z) override; |
| 669 | void emitLightColor(GrGLSLUniformHandler*, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 670 | GrGLSLFragmentBuilder*, |
| 671 | const char *surfaceToLight) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 672 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 673 | private: |
| 674 | typedef GrGLLight INHERITED; |
| 675 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 676 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 677 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 678 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 679 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 680 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 681 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 682 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 683 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 684 | #else |
| 685 | |
| 686 | class GrGLLight; |
| 687 | |
| 688 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 689 | |
| 690 | }; |
| 691 | |
| 692 | /////////////////////////////////////////////////////////////////////////////// |
| 693 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 694 | class SkImageFilterLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 695 | public: |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 696 | |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 697 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 698 | enum LightType { |
| 699 | kDistant_LightType, |
| 700 | kPoint_LightType, |
| 701 | kSpot_LightType, |
| 702 | }; |
| 703 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 704 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 705 | virtual GrGLLight* createGLLight() const = 0; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 706 | virtual bool isEqual(const SkImageFilterLight& other) const { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 707 | return fColor == other.fColor; |
| 708 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 709 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 710 | virtual bool requiresFragmentPosition() const = 0; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 711 | virtual SkImageFilterLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 712 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 713 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 714 | void flattenLight(SkWriteBuffer& buffer) const; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 715 | static SkImageFilterLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 716 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 717 | protected: |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 718 | SkImageFilterLight(SkColor color) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 719 | fColor = SkPoint3::Make(SkIntToScalar(SkColorGetR(color)), |
| 720 | SkIntToScalar(SkColorGetG(color)), |
| 721 | SkIntToScalar(SkColorGetB(color))); |
| 722 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 723 | SkImageFilterLight(const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 724 | : fColor(color) {} |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 725 | SkImageFilterLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 726 | fColor = readPoint3(buffer); |
| 727 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 728 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 729 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 730 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 731 | |
| 732 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 733 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 734 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 735 | }; |
| 736 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 737 | /////////////////////////////////////////////////////////////////////////////// |
| 738 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 739 | class SkDistantLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 740 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 741 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 742 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 743 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 744 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 745 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 746 | return fDirection; |
| 747 | }; |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 748 | const SkPoint3& lightColor(const SkPoint3&) const { return this->color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 749 | LightType type() const override { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 750 | const SkPoint3& direction() const { return fDirection; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 751 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 752 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 753 | return new GrGLDistantLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 754 | #else |
| 755 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 756 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 757 | #endif |
| 758 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 759 | bool requiresFragmentPosition() const override { return false; } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 760 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 761 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 762 | if (other.type() != kDistant_LightType) { |
| 763 | return false; |
| 764 | } |
| 765 | |
| 766 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 767 | return INHERITED::isEqual(other) && |
| 768 | fDirection == o.fDirection; |
| 769 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 770 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 771 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 772 | fDirection = readPoint3(buffer); |
| 773 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 774 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 775 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 776 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 777 | : INHERITED(color), fDirection(direction) { |
| 778 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 779 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 780 | return new SkDistantLight(direction(), color()); |
| 781 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 782 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 783 | writePoint3(fDirection, buffer); |
| 784 | } |
| 785 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 786 | private: |
| 787 | SkPoint3 fDirection; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 788 | |
| 789 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 790 | }; |
| 791 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 792 | /////////////////////////////////////////////////////////////////////////////// |
| 793 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 794 | class SkPointLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 795 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 796 | SkPointLight(const SkPoint3& location, SkColor color) |
| 797 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 798 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 799 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 800 | SkPoint3 direction = SkPoint3::Make(fLocation.fX - SkIntToScalar(x), |
| 801 | fLocation.fY - SkIntToScalar(y), |
| 802 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), |
| 803 | surfaceScale)); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 804 | fast_normalize(&direction); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 805 | return direction; |
| 806 | }; |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 807 | const SkPoint3& lightColor(const SkPoint3&) const { return this->color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 808 | LightType type() const override { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 809 | const SkPoint3& location() const { return fLocation; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 810 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 811 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 812 | return new GrGLPointLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 813 | #else |
| 814 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 815 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 816 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 817 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 818 | bool requiresFragmentPosition() const override { return true; } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 819 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 820 | if (other.type() != kPoint_LightType) { |
| 821 | return false; |
| 822 | } |
| 823 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 824 | return INHERITED::isEqual(other) && |
| 825 | fLocation == o.fLocation; |
| 826 | } |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 827 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 828 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 829 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 830 | // Use X scale and Y scale on Z and average the result |
| 831 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 832 | matrix.mapVectors(&locationZ, 1); |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 833 | SkPoint3 location = SkPoint3::Make(location2.fX, |
| 834 | location2.fY, |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 835 | SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 836 | return new SkPointLight(location, color()); |
| 837 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 838 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 839 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 840 | fLocation = readPoint3(buffer); |
| 841 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 842 | |
| 843 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 844 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 845 | : INHERITED(color), fLocation(location) {} |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 846 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 847 | writePoint3(fLocation, buffer); |
| 848 | } |
| 849 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 850 | private: |
| 851 | SkPoint3 fLocation; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 852 | |
| 853 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 854 | }; |
| 855 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 856 | /////////////////////////////////////////////////////////////////////////////// |
| 857 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 858 | class SkSpotLight : public SkImageFilterLight { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 859 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 860 | SkSpotLight(const SkPoint3& location, |
| 861 | const SkPoint3& target, |
| 862 | SkScalar specularExponent, |
| 863 | SkScalar cutoffAngle, |
| 864 | SkColor color) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 865 | : INHERITED(color), |
| 866 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 867 | fTarget(target), |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 868 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 869 | { |
| 870 | fS = target - location; |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 871 | fast_normalize(&fS); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 872 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 873 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 874 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 875 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 876 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 877 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 878 | SkImageFilterLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 879 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 880 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 881 | // Use X scale and Y scale on Z and average the result |
| 882 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 883 | matrix.mapVectors(&locationZ, 1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 884 | SkPoint3 location = SkPoint3::Make(location2.fX, location2.fY, |
| 885 | SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 886 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 887 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 888 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 889 | matrix.mapVectors(&targetZ, 1); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 890 | SkPoint3 target = SkPoint3::Make(target2.fX, target2.fY, |
| 891 | SkScalarAve(targetZ.fX, targetZ.fY)); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 892 | SkPoint3 s = target - location; |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 893 | fast_normalize(&s); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 894 | return new SkSpotLight(location, |
| 895 | target, |
| 896 | fSpecularExponent, |
| 897 | fCosOuterConeAngle, |
| 898 | fCosInnerConeAngle, |
| 899 | fConeScale, |
| 900 | s, |
| 901 | color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 902 | } |
| 903 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 904 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 905 | SkPoint3 direction = SkPoint3::Make(fLocation.fX - SkIntToScalar(x), |
| 906 | fLocation.fY - SkIntToScalar(y), |
| 907 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), |
| 908 | surfaceScale)); |
jvanverth | 992c761 | 2015-07-17 07:22:30 -0700 | [diff] [blame] | 909 | fast_normalize(&direction); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 910 | return direction; |
| 911 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 912 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 913 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 914 | SkScalar scale = 0; |
| 915 | if (cosAngle >= fCosOuterConeAngle) { |
| 916 | scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 917 | if (cosAngle < fCosInnerConeAngle) { |
| 918 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
| 919 | scale *= fConeScale; |
| 920 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 921 | } |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 922 | return this->color().makeScale(scale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 923 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 924 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 925 | #if SK_SUPPORT_GPU |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 926 | return new GrGLSpotLight; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 927 | #else |
| 928 | SkDEBUGFAIL("Should not call in GPU-less build"); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 929 | return nullptr; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 930 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 931 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 932 | bool requiresFragmentPosition() const override { return true; } |
| 933 | LightType type() const override { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 934 | const SkPoint3& location() const { return fLocation; } |
| 935 | const SkPoint3& target() const { return fTarget; } |
| 936 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 937 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 938 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 939 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 940 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 941 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 942 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 943 | fLocation = readPoint3(buffer); |
| 944 | fTarget = readPoint3(buffer); |
| 945 | fSpecularExponent = buffer.readScalar(); |
| 946 | fCosOuterConeAngle = buffer.readScalar(); |
| 947 | fCosInnerConeAngle = buffer.readScalar(); |
| 948 | fConeScale = buffer.readScalar(); |
| 949 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 950 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 951 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 952 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 953 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 954 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 955 | protected: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 956 | SkSpotLight(const SkPoint3& location, |
| 957 | const SkPoint3& target, |
| 958 | SkScalar specularExponent, |
| 959 | SkScalar cosOuterConeAngle, |
| 960 | SkScalar cosInnerConeAngle, |
| 961 | SkScalar coneScale, |
| 962 | const SkPoint3& s, |
| 963 | const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 964 | : INHERITED(color), |
| 965 | fLocation(location), |
| 966 | fTarget(target), |
| 967 | fSpecularExponent(specularExponent), |
| 968 | fCosOuterConeAngle(cosOuterConeAngle), |
| 969 | fCosInnerConeAngle(cosInnerConeAngle), |
| 970 | fConeScale(coneScale), |
| 971 | fS(s) |
| 972 | { |
| 973 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 974 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 975 | writePoint3(fLocation, buffer); |
| 976 | writePoint3(fTarget, buffer); |
| 977 | buffer.writeScalar(fSpecularExponent); |
| 978 | buffer.writeScalar(fCosOuterConeAngle); |
| 979 | buffer.writeScalar(fCosInnerConeAngle); |
| 980 | buffer.writeScalar(fConeScale); |
| 981 | writePoint3(fS, buffer); |
| 982 | } |
| 983 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 984 | bool isEqual(const SkImageFilterLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 985 | if (other.type() != kSpot_LightType) { |
| 986 | return false; |
| 987 | } |
| 988 | |
| 989 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 990 | return INHERITED::isEqual(other) && |
| 991 | fLocation == o.fLocation && |
| 992 | fTarget == o.fTarget && |
| 993 | fSpecularExponent == o.fSpecularExponent && |
| 994 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 995 | } |
| 996 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 997 | private: |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 998 | static const SkScalar kSpecularExponentMin; |
| 999 | static const SkScalar kSpecularExponentMax; |
| 1000 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1001 | SkPoint3 fLocation; |
| 1002 | SkPoint3 fTarget; |
| 1003 | SkScalar fSpecularExponent; |
| 1004 | SkScalar fCosOuterConeAngle; |
| 1005 | SkScalar fCosInnerConeAngle; |
| 1006 | SkScalar fConeScale; |
| 1007 | SkPoint3 fS; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1008 | |
| 1009 | typedef SkImageFilterLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1010 | }; |
| 1011 | |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 1012 | // According to the spec, the specular term should be in the range [1, 128] : |
| 1013 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
| 1014 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 1015 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
| 1016 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1017 | /////////////////////////////////////////////////////////////////////////////// |
| 1018 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1019 | void SkImageFilterLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1020 | // Write type first, then baseclass, then subclass. |
| 1021 | buffer.writeInt(this->type()); |
| 1022 | writePoint3(fColor, buffer); |
| 1023 | this->onFlattenLight(buffer); |
| 1024 | } |
| 1025 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1026 | /*static*/ SkImageFilterLight* SkImageFilterLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1027 | // Read type first. |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1028 | const SkImageFilterLight::LightType type = (SkImageFilterLight::LightType)buffer.readInt(); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1029 | switch (type) { |
| 1030 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 1031 | // then subclass, same order as flattenLight. |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1032 | case SkImageFilterLight::kDistant_LightType: |
| 1033 | return new SkDistantLight(buffer); |
| 1034 | case SkImageFilterLight::kPoint_LightType: |
| 1035 | return new SkPointLight(buffer); |
| 1036 | case SkImageFilterLight::kSpot_LightType: |
| 1037 | return new SkSpotLight(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1038 | default: |
| 1039 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1040 | buffer.validate(false); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1041 | return nullptr; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1042 | } |
| 1043 | } |
| 1044 | /////////////////////////////////////////////////////////////////////////////// |
| 1045 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1046 | SkLightingImageFilter::SkLightingImageFilter(SkImageFilterLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1047 | SkImageFilter* input, const CropRect* cropRect) |
| 1048 | : INHERITED(1, &input, cropRect) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1049 | , fLight(SkRef(light)) |
| 1050 | , fSurfaceScale(surfaceScale / 255) |
| 1051 | {} |
| 1052 | |
| 1053 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 1054 | SkColor lightColor, |
| 1055 | SkScalar surfaceScale, |
| 1056 | SkScalar kd, |
| 1057 | SkImageFilter* input, |
| 1058 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1059 | SkAutoTUnref<SkImageFilterLight> light(new SkDistantLight(direction, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1060 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1061 | } |
| 1062 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1063 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 1064 | SkColor lightColor, |
| 1065 | SkScalar surfaceScale, |
| 1066 | SkScalar kd, |
| 1067 | SkImageFilter* input, |
| 1068 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1069 | SkAutoTUnref<SkImageFilterLight> light(new SkPointLight(location, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1070 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1071 | } |
| 1072 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1073 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 1074 | const SkPoint3& target, |
| 1075 | SkScalar specularExponent, |
| 1076 | SkScalar cutoffAngle, |
| 1077 | SkColor lightColor, |
| 1078 | SkScalar surfaceScale, |
| 1079 | SkScalar kd, |
| 1080 | SkImageFilter* input, |
| 1081 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1082 | SkAutoTUnref<SkImageFilterLight> light( |
| 1083 | new SkSpotLight(location, target, specularExponent, cutoffAngle, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1084 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, 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::CreateDistantLitSpecular(const SkPoint3& direction, |
| 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 SkDistantLight(direction, 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::CreatePointLitSpecular(const SkPoint3& location, |
| 1099 | SkColor lightColor, |
| 1100 | SkScalar surfaceScale, |
| 1101 | SkScalar ks, |
| 1102 | SkScalar shine, |
| 1103 | SkImageFilter* input, |
| 1104 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1105 | SkAutoTUnref<SkImageFilterLight> light(new SkPointLight(location, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1106 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1107 | } |
| 1108 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1109 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 1110 | const SkPoint3& target, |
| 1111 | SkScalar specularExponent, |
| 1112 | SkScalar cutoffAngle, |
| 1113 | SkColor lightColor, |
| 1114 | SkScalar surfaceScale, |
| 1115 | SkScalar ks, |
| 1116 | SkScalar shine, |
| 1117 | SkImageFilter* input, |
| 1118 | const CropRect* cropRect) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1119 | SkAutoTUnref<SkImageFilterLight> light( |
| 1120 | new SkSpotLight(location, target, specularExponent, cutoffAngle, lightColor)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1121 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1122 | } |
| 1123 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1124 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1125 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1126 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1127 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1128 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1129 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1130 | } |
| 1131 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1132 | /////////////////////////////////////////////////////////////////////////////// |
| 1133 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1134 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkImageFilterLight* light, |
| 1135 | SkScalar surfaceScale, |
| 1136 | SkScalar kd, |
| 1137 | SkImageFilter* input, |
| 1138 | const CropRect* cropRect) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1139 | if (nullptr == light) { |
| 1140 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1141 | } |
| 1142 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1143 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1144 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1145 | // According to the spec, kd can be any non-negative number : |
| 1146 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1147 | if (kd < 0) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1148 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1149 | } |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1150 | return new SkDiffuseLightingImageFilter(light, surfaceScale, kd, input, cropRect); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1151 | } |
| 1152 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1153 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1154 | SkScalar surfaceScale, |
| 1155 | SkScalar kd, |
| 1156 | SkImageFilter* input, |
| 1157 | const CropRect* cropRect) |
| 1158 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1159 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1160 | { |
| 1161 | } |
| 1162 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1163 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1164 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1165 | SkAutoTUnref<SkImageFilterLight> light(SkImageFilterLight::UnflattenLight(buffer)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1166 | SkScalar surfaceScale = buffer.readScalar(); |
| 1167 | SkScalar kd = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1168 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1169 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1170 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1171 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1172 | this->INHERITED::flatten(buffer); |
| 1173 | buffer.writeScalar(fKD); |
| 1174 | } |
| 1175 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1176 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1177 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1178 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1179 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1180 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1181 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1182 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | b9519f8 | 2015-10-15 12:15:13 -0700 | [diff] [blame] | 1183 | if (!this->filterInput(0, proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1184 | return false; |
| 1185 | } |
| 1186 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1187 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1188 | return false; |
| 1189 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1190 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1191 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1192 | return false; |
| 1193 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1194 | |
| 1195 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1196 | return false; |
| 1197 | } |
| 1198 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1199 | SkAutoLockPixels alp(src); |
| 1200 | if (!src.getPixels()) { |
| 1201 | return false; |
| 1202 | } |
| 1203 | |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1204 | SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds.width(), bounds.height())); |
| 1205 | if (!device) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1206 | return false; |
| 1207 | } |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1208 | *dst = device->accessBitmap(false); |
| 1209 | SkAutoLockPixels alp_dst(*dst); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1210 | |
senorblanco | 7b7ecfc | 2015-08-26 14:26:40 -0700 | [diff] [blame] | 1211 | SkMatrix matrix(ctx.ctm()); |
| 1212 | matrix.postTranslate(SkIntToScalar(-srcOffset.x()), SkIntToScalar(-srcOffset.y())); |
| 1213 | SkAutoTUnref<SkImageFilterLight> transformedLight(light()->transform(matrix)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1214 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1215 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1216 | offset->fX = bounds.left(); |
| 1217 | offset->fY = bounds.top(); |
| 1218 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1219 | switch (transformedLight->type()) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1220 | case SkImageFilterLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1221 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, |
| 1222 | transformedLight, |
| 1223 | src, |
| 1224 | dst, |
| 1225 | surfaceScale(), |
| 1226 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1227 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1228 | case SkImageFilterLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1229 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, |
| 1230 | transformedLight, |
| 1231 | src, |
| 1232 | dst, |
| 1233 | surfaceScale(), |
| 1234 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1235 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1236 | case SkImageFilterLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1237 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, |
| 1238 | transformedLight, |
| 1239 | src, |
| 1240 | dst, |
| 1241 | surfaceScale(), |
| 1242 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1243 | break; |
| 1244 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1245 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1246 | return true; |
| 1247 | } |
| 1248 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1249 | #ifndef SK_IGNORE_TO_STRING |
| 1250 | void SkDiffuseLightingImageFilter::toString(SkString* str) const { |
| 1251 | str->appendf("SkDiffuseLightingImageFilter: ("); |
| 1252 | str->appendf("kD: %f\n", fKD); |
| 1253 | str->append(")"); |
| 1254 | } |
| 1255 | #endif |
| 1256 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1257 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1258 | GrFragmentProcessor* SkDiffuseLightingImageFilter::getFragmentProcessor( |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1259 | GrTexture* texture, |
| 1260 | const SkMatrix& matrix, |
| 1261 | const SkIRect&, |
| 1262 | BoundaryMode boundaryMode |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1263 | ) const { |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1264 | SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255)); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1265 | return GrDiffuseLightingEffect::Create(texture, this->light(), scale, matrix, this->kd(), |
| 1266 | boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1267 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1268 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1269 | |
| 1270 | /////////////////////////////////////////////////////////////////////////////// |
| 1271 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1272 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkImageFilterLight* light, |
| 1273 | SkScalar surfaceScale, |
| 1274 | SkScalar ks, |
| 1275 | SkScalar shininess, |
| 1276 | SkImageFilter* input, |
| 1277 | const CropRect* cropRect) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1278 | if (nullptr == light) { |
| 1279 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1280 | } |
| 1281 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1282 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1283 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1284 | // According to the spec, ks can be any non-negative number : |
| 1285 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1286 | if (ks < 0) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1287 | return nullptr; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1288 | } |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1289 | return new SkSpecularLightingImageFilter(light, surfaceScale, ks, shininess, input, cropRect); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1290 | } |
| 1291 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1292 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkImageFilterLight* light, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1293 | SkScalar surfaceScale, |
| 1294 | SkScalar ks, |
| 1295 | SkScalar shininess, |
| 1296 | SkImageFilter* input, |
| 1297 | const CropRect* cropRect) |
| 1298 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1299 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1300 | fShininess(shininess) |
| 1301 | { |
| 1302 | } |
| 1303 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1304 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1305 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1306 | SkAutoTUnref<SkImageFilterLight> light(SkImageFilterLight::UnflattenLight(buffer)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1307 | SkScalar surfaceScale = buffer.readScalar(); |
| 1308 | SkScalar ks = buffer.readScalar(); |
| 1309 | SkScalar shine = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1310 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1311 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1312 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1313 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1314 | this->INHERITED::flatten(buffer); |
| 1315 | buffer.writeScalar(fKS); |
| 1316 | buffer.writeScalar(fShininess); |
| 1317 | } |
| 1318 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1319 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1320 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1321 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1322 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1323 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1324 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1325 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco | b9519f8 | 2015-10-15 12:15:13 -0700 | [diff] [blame] | 1326 | if (!this->filterInput(0, proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1327 | return false; |
| 1328 | } |
| 1329 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1330 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1331 | return false; |
| 1332 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1333 | |
| 1334 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1335 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1336 | return false; |
| 1337 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1338 | |
| 1339 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1340 | return false; |
| 1341 | } |
| 1342 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1343 | SkAutoLockPixels alp(src); |
| 1344 | if (!src.getPixels()) { |
| 1345 | return false; |
| 1346 | } |
| 1347 | |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1348 | SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds.width(), bounds.height())); |
| 1349 | if (!device) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1350 | return false; |
| 1351 | } |
senorblanco | 1d3ff43 | 2015-10-20 10:17:34 -0700 | [diff] [blame] | 1352 | *dst = device->accessBitmap(false); |
| 1353 | SkAutoLockPixels alp_dst(*dst); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1354 | |
| 1355 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1356 | offset->fX = bounds.left(); |
| 1357 | offset->fY = bounds.top(); |
senorblanco | 7b7ecfc | 2015-08-26 14:26:40 -0700 | [diff] [blame] | 1358 | SkMatrix matrix(ctx.ctm()); |
| 1359 | matrix.postTranslate(SkIntToScalar(-srcOffset.x()), SkIntToScalar(-srcOffset.y())); |
| 1360 | SkAutoTUnref<SkImageFilterLight> transformedLight(light()->transform(matrix)); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1361 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1362 | switch (transformedLight->type()) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1363 | case SkImageFilterLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1364 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, |
| 1365 | transformedLight, |
| 1366 | src, |
| 1367 | dst, |
| 1368 | surfaceScale(), |
| 1369 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1370 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1371 | case SkImageFilterLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1372 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, |
| 1373 | transformedLight, |
| 1374 | src, |
| 1375 | dst, |
| 1376 | surfaceScale(), |
| 1377 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1378 | break; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1379 | case SkImageFilterLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1380 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, |
| 1381 | transformedLight, |
| 1382 | src, |
| 1383 | dst, |
| 1384 | surfaceScale(), |
| 1385 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1386 | break; |
| 1387 | } |
| 1388 | return true; |
| 1389 | } |
| 1390 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1391 | #ifndef SK_IGNORE_TO_STRING |
| 1392 | void SkSpecularLightingImageFilter::toString(SkString* str) const { |
| 1393 | str->appendf("SkSpecularLightingImageFilter: ("); |
| 1394 | str->appendf("kS: %f shininess: %f", fKS, fShininess); |
| 1395 | str->append(")"); |
| 1396 | } |
| 1397 | #endif |
| 1398 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1399 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1400 | GrFragmentProcessor* SkSpecularLightingImageFilter::getFragmentProcessor( |
joshualitt | 5f10b5c | 2015-07-09 10:24:35 -0700 | [diff] [blame] | 1401 | GrTexture* texture, |
| 1402 | const SkMatrix& matrix, |
| 1403 | const SkIRect&, |
| 1404 | BoundaryMode boundaryMode) const { |
| 1405 | SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255)); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1406 | return GrSpecularLightingEffect::Create(texture, this->light(), scale, matrix, this->ks(), |
| 1407 | this->shininess(), boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1408 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1409 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1410 | |
| 1411 | /////////////////////////////////////////////////////////////////////////////// |
| 1412 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1413 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1414 | |
| 1415 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1416 | SkPoint3 random_point3(SkRandom* random) { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1417 | return SkPoint3::Make(SkScalarToFloat(random->nextSScalar1()), |
| 1418 | SkScalarToFloat(random->nextSScalar1()), |
| 1419 | SkScalarToFloat(random->nextSScalar1())); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1420 | } |
| 1421 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1422 | SkImageFilterLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1423 | int type = random->nextULessThan(3); |
| 1424 | switch (type) { |
| 1425 | case 0: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1426 | return new SkDistantLight(random_point3(random), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1427 | } |
| 1428 | case 1: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1429 | return new SkPointLight(random_point3(random), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1430 | } |
| 1431 | case 2: { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1432 | return new SkSpotLight(random_point3(random), random_point3(random), |
| 1433 | random->nextUScalar1(), random->nextUScalar1(), random->nextU()); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1434 | } |
| 1435 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1436 | SkFAIL("Unexpected value."); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1437 | return nullptr; |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1438 | } |
| 1439 | } |
| 1440 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1441 | SkString emitNormalFunc(BoundaryMode mode, |
| 1442 | const char* pointToNormalName, |
| 1443 | const char* sobelFuncName) { |
| 1444 | SkString result; |
| 1445 | switch (mode) { |
| 1446 | case kTopLeft_BoundaryMode: |
| 1447 | result.printf("\treturn %s(%s(0.0, 0.0, m[4], m[5], m[7], m[8], %g),\n" |
| 1448 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1449 | "\t surfaceScale);\n", |
| 1450 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1451 | sobelFuncName, gTwoThirds); |
| 1452 | break; |
| 1453 | case kTop_BoundaryMode: |
| 1454 | result.printf("\treturn %s(%s(0.0, 0.0, m[3], m[5], m[6], m[8], %g),\n" |
| 1455 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1456 | "\t surfaceScale);\n", |
| 1457 | pointToNormalName, sobelFuncName, gOneThird, |
| 1458 | sobelFuncName, gOneHalf); |
| 1459 | break; |
| 1460 | case kTopRight_BoundaryMode: |
| 1461 | result.printf("\treturn %s(%s( 0.0, 0.0, m[3], m[4], m[6], m[7], %g),\n" |
| 1462 | "\t %s(m[3], m[6], m[4], m[7], 0.0, 0.0, %g),\n" |
| 1463 | "\t surfaceScale);\n", |
| 1464 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1465 | sobelFuncName, gTwoThirds); |
| 1466 | break; |
| 1467 | case kLeft_BoundaryMode: |
| 1468 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], m[7], m[8], %g),\n" |
| 1469 | "\t %s( 0.0, 0.0, m[1], m[7], m[2], m[8], %g),\n" |
| 1470 | "\t surfaceScale);\n", |
| 1471 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1472 | sobelFuncName, gOneThird); |
| 1473 | break; |
| 1474 | case kInterior_BoundaryMode: |
| 1475 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], %g),\n" |
| 1476 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], %g),\n" |
| 1477 | "\t surfaceScale);\n", |
| 1478 | pointToNormalName, sobelFuncName, gOneQuarter, |
| 1479 | sobelFuncName, gOneQuarter); |
| 1480 | break; |
| 1481 | case kRight_BoundaryMode: |
| 1482 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], m[6], m[7], %g),\n" |
| 1483 | "\t %s(m[0], m[6], m[1], m[7], 0.0, 0.0, %g),\n" |
| 1484 | "\t surfaceScale);\n", |
| 1485 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1486 | sobelFuncName, gOneThird); |
| 1487 | break; |
| 1488 | case kBottomLeft_BoundaryMode: |
| 1489 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], 0.0, 0.0, %g),\n" |
| 1490 | "\t %s( 0.0, 0.0, m[1], m[4], m[2], m[5], %g),\n" |
| 1491 | "\t surfaceScale);\n", |
| 1492 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1493 | sobelFuncName, gTwoThirds); |
| 1494 | break; |
| 1495 | case kBottom_BoundaryMode: |
| 1496 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], 0.0, 0.0, %g),\n" |
| 1497 | "\t %s(m[0], m[3], m[1], m[4], m[2], m[5], %g),\n" |
| 1498 | "\t surfaceScale);\n", |
| 1499 | pointToNormalName, sobelFuncName, gOneThird, |
| 1500 | sobelFuncName, gOneHalf); |
| 1501 | break; |
| 1502 | case kBottomRight_BoundaryMode: |
| 1503 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], 0.0, 0.0, %g),\n" |
| 1504 | "\t %s(m[0], m[3], m[1], m[4], 0.0, 0.0, %g),\n" |
| 1505 | "\t surfaceScale);\n", |
| 1506 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1507 | sobelFuncName, gTwoThirds); |
| 1508 | break; |
| 1509 | default: |
| 1510 | SkASSERT(false); |
| 1511 | break; |
| 1512 | } |
| 1513 | return result; |
| 1514 | } |
| 1515 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1516 | } |
| 1517 | |
egdaniel | 64c4728 | 2015-11-13 06:54:19 -0800 | [diff] [blame] | 1518 | class GrGLLightingEffect : public GrGLSLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1519 | public: |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1520 | GrGLLightingEffect() : fLight(nullptr) { } |
| 1521 | virtual ~GrGLLightingEffect() { delete fLight; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1522 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1523 | void emitCode(EmitArgs&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1524 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1525 | static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1526 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1527 | protected: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1528 | /** |
| 1529 | * Subclasses of GrGLLightingEffect must call INHERITED::onSetData(); |
| 1530 | */ |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1531 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1532 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1533 | virtual void emitLightFunc(GrGLSLUniformHandler*, |
| 1534 | GrGLSLFragmentBuilder*, |
| 1535 | SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1536 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1537 | private: |
egdaniel | 64c4728 | 2015-11-13 06:54:19 -0800 | [diff] [blame] | 1538 | typedef GrGLSLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1539 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1540 | UniformHandle fImageIncrementUni; |
| 1541 | UniformHandle fSurfaceScaleUni; |
| 1542 | GrGLLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1543 | }; |
| 1544 | |
| 1545 | /////////////////////////////////////////////////////////////////////////////// |
| 1546 | |
| 1547 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1548 | public: |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1549 | void emitLightFunc(GrGLSLUniformHandler*, GrGLSLFragmentBuilder*, SkString* funcName) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1550 | |
| 1551 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1552 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1553 | |
| 1554 | private: |
| 1555 | typedef GrGLLightingEffect INHERITED; |
| 1556 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1557 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1558 | }; |
| 1559 | |
| 1560 | /////////////////////////////////////////////////////////////////////////////// |
| 1561 | |
| 1562 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1563 | public: |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1564 | void emitLightFunc(GrGLSLUniformHandler*, GrGLSLFragmentBuilder*, SkString* funcName) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1565 | |
| 1566 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1567 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1568 | |
| 1569 | private: |
| 1570 | typedef GrGLLightingEffect INHERITED; |
| 1571 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1572 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1573 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1574 | }; |
| 1575 | |
| 1576 | /////////////////////////////////////////////////////////////////////////////// |
| 1577 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1578 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1579 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1580 | SkScalar surfaceScale, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1581 | const SkMatrix& matrix, |
| 1582 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1583 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1584 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1585 | , fSurfaceScale(surfaceScale) |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1586 | , fFilterMatrix(matrix) |
| 1587 | , fBoundaryMode(boundaryMode) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1588 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1589 | if (light->requiresFragmentPosition()) { |
| 1590 | this->setWillReadFragmentPosition(); |
| 1591 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1592 | } |
| 1593 | |
| 1594 | GrLightingEffect::~GrLightingEffect() { |
| 1595 | fLight->unref(); |
| 1596 | } |
| 1597 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1598 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1599 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 1600 | return fLight->isEqual(*s.fLight) && |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1601 | fSurfaceScale == s.fSurfaceScale && |
| 1602 | fBoundaryMode == s.fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1603 | } |
| 1604 | |
| 1605 | /////////////////////////////////////////////////////////////////////////////// |
| 1606 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1607 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1608 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1609 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1610 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1611 | SkScalar kd, |
| 1612 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1613 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), fKD(kd) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1614 | this->initClassID<GrDiffuseLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1615 | } |
| 1616 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1617 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1618 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1619 | return INHERITED::onIsEqual(sBase) && this->kd() == s.kd(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1620 | } |
| 1621 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1622 | void GrDiffuseLightingEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 1623 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1624 | GrGLDiffuseLightingEffect::GenKey(*this, caps, b); |
| 1625 | } |
| 1626 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1627 | GrGLSLFragmentProcessor* GrDiffuseLightingEffect::onCreateGLSLInstance() const { |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1628 | return new GrGLDiffuseLightingEffect; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1629 | } |
| 1630 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1631 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1632 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1633 | const GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1634 | SkScalar surfaceScale = d->fRandom->nextSScalar1(); |
| 1635 | SkScalar kd = d->fRandom->nextUScalar1(); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1636 | SkAutoTUnref<SkImageFilterLight> light(create_random_light(d->fRandom)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1637 | SkMatrix matrix; |
| 1638 | for (int i = 0; i < 9; i++) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1639 | matrix[i] = d->fRandom->nextUScalar1(); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1640 | } |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1641 | BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1642 | return GrDiffuseLightingEffect::Create(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1643 | light, surfaceScale, matrix, kd, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1644 | } |
| 1645 | |
| 1646 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1647 | /////////////////////////////////////////////////////////////////////////////// |
| 1648 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1649 | void GrGLLightingEffect::emitCode(EmitArgs& args) { |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1650 | const GrLightingEffect& le = args.fFp.cast<GrLightingEffect>(); |
| 1651 | if (!fLight) { |
| 1652 | fLight = le.light()->createGLLight(); |
| 1653 | } |
| 1654 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1655 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 1656 | fImageIncrementUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1657 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 1658 | "ImageIncrement"); |
| 1659 | fSurfaceScaleUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1660 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1661 | "SurfaceScale"); |
| 1662 | fLight->emitLightColorUniform(uniformHandler); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1663 | GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1664 | SkString lightFunc; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1665 | this->emitLightFunc(uniformHandler, fragBuilder, &lightFunc); |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1666 | static const GrGLSLShaderVar gSobelArgs[] = { |
| 1667 | GrGLSLShaderVar("a", kFloat_GrSLType), |
| 1668 | GrGLSLShaderVar("b", kFloat_GrSLType), |
| 1669 | GrGLSLShaderVar("c", kFloat_GrSLType), |
| 1670 | GrGLSLShaderVar("d", kFloat_GrSLType), |
| 1671 | GrGLSLShaderVar("e", kFloat_GrSLType), |
| 1672 | GrGLSLShaderVar("f", kFloat_GrSLType), |
| 1673 | GrGLSLShaderVar("scale", kFloat_GrSLType), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1674 | }; |
| 1675 | SkString sobelFuncName; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1676 | SkString coords2D = fragBuilder->ensureFSCoords2D(args.fCoords, 0); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1677 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1678 | fragBuilder->emitFunction(kFloat_GrSLType, |
| 1679 | "sobel", |
| 1680 | SK_ARRAY_COUNT(gSobelArgs), |
| 1681 | gSobelArgs, |
| 1682 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1683 | &sobelFuncName); |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1684 | static const GrGLSLShaderVar gPointToNormalArgs[] = { |
| 1685 | GrGLSLShaderVar("x", kFloat_GrSLType), |
| 1686 | GrGLSLShaderVar("y", kFloat_GrSLType), |
| 1687 | GrGLSLShaderVar("scale", kFloat_GrSLType), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1688 | }; |
| 1689 | SkString pointToNormalName; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1690 | fragBuilder->emitFunction(kVec3f_GrSLType, |
| 1691 | "pointToNormal", |
| 1692 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1693 | gPointToNormalArgs, |
| 1694 | "\treturn normalize(vec3(-x * scale, -y * scale, 1));\n", |
| 1695 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1696 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1697 | static const GrGLSLShaderVar gInteriorNormalArgs[] = { |
| 1698 | GrGLSLShaderVar("m", kFloat_GrSLType, 9), |
| 1699 | GrGLSLShaderVar("surfaceScale", kFloat_GrSLType), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1700 | }; |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1701 | SkString normalBody = emitNormalFunc(le.boundaryMode(), |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1702 | pointToNormalName.c_str(), |
| 1703 | sobelFuncName.c_str()); |
| 1704 | SkString normalName; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1705 | fragBuilder->emitFunction(kVec3f_GrSLType, |
| 1706 | "normal", |
| 1707 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1708 | gInteriorNormalArgs, |
| 1709 | normalBody.c_str(), |
| 1710 | &normalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1711 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1712 | fragBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1713 | fragBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1714 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1715 | const char* imgInc = uniformHandler->getUniformCStr(fImageIncrementUni); |
| 1716 | const char* surfScale = uniformHandler->getUniformCStr(fSurfaceScaleUni); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1717 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1718 | int index = 0; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1719 | for (int dy = 1; dy >= -1; dy--) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1720 | for (int dx = -1; dx <= 1; dx++) { |
| 1721 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1722 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1723 | fragBuilder->codeAppendf("\t\tm[%d] = ", index++); |
| 1724 | fragBuilder->appendTextureLookup(args.fSamplers[0], texCoords.c_str()); |
| 1725 | fragBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1726 | } |
| 1727 | } |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1728 | fragBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1729 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1730 | arg.appendf("%s * m[4]", surfScale); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1731 | fLight->emitSurfaceToLight(uniformHandler, fragBuilder, arg.c_str()); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1732 | fragBuilder->codeAppend(";\n"); |
| 1733 | fragBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
| 1734 | args.fOutputColor, lightFunc.c_str(), normalName.c_str(), surfScale); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1735 | fLight->emitLightColor(uniformHandler, fragBuilder, "surfaceToLight"); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1736 | fragBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1737 | SkString modulate; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1738 | GrGLSLMulVarBy4f(&modulate, args.fOutputColor, args.fInputColor); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1739 | fragBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1740 | } |
| 1741 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1742 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1743 | const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1744 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
| 1745 | b->add32(lighting.boundaryMode() << 2 | lighting.light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1746 | } |
| 1747 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1748 | void GrGLLightingEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 1749 | const GrProcessor& proc) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1750 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1751 | if (!fLight) { |
| 1752 | fLight = lighting.light()->createGLLight(); |
| 1753 | } |
| 1754 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1755 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1756 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1757 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1758 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1759 | SkAutoTUnref<SkImageFilterLight> transformedLight( |
| 1760 | lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1761 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1762 | } |
| 1763 | |
| 1764 | /////////////////////////////////////////////////////////////////////////////// |
| 1765 | |
| 1766 | /////////////////////////////////////////////////////////////////////////////// |
| 1767 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1768 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1769 | GrGLSLFragmentBuilder* fragBuilder, |
| 1770 | SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1771 | const char* kd; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1772 | fKDUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1773 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1774 | "KD", &kd); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1775 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1776 | static const GrGLSLShaderVar gLightArgs[] = { |
| 1777 | GrGLSLShaderVar("normal", kVec3f_GrSLType), |
| 1778 | GrGLSLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1779 | GrGLSLShaderVar("lightColor", kVec3f_GrSLType) |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1780 | }; |
| 1781 | SkString lightBody; |
| 1782 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1783 | lightBody.appendf("\treturn vec4(lightColor * clamp(colorScale, 0.0, 1.0), 1.0);\n"); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1784 | fragBuilder->emitFunction(kVec4f_GrSLType, |
| 1785 | "light", |
| 1786 | SK_ARRAY_COUNT(gLightArgs), |
| 1787 | gLightArgs, |
| 1788 | lightBody.c_str(), |
| 1789 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1790 | } |
| 1791 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1792 | void GrGLDiffuseLightingEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 1793 | const GrProcessor& proc) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1794 | INHERITED::onSetData(pdman, proc); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1795 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1796 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1797 | } |
| 1798 | |
| 1799 | /////////////////////////////////////////////////////////////////////////////// |
| 1800 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1801 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1802 | const SkImageFilterLight* light, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1803 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1804 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1805 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1806 | SkScalar shininess, |
| 1807 | BoundaryMode boundaryMode) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1808 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode) |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1809 | , fKS(ks) |
| 1810 | , fShininess(shininess) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1811 | this->initClassID<GrSpecularLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1812 | } |
| 1813 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1814 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1815 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1816 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1817 | this->ks() == s.ks() && |
| 1818 | this->shininess() == s.shininess(); |
| 1819 | } |
| 1820 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1821 | void GrSpecularLightingEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 1822 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1823 | GrGLSpecularLightingEffect::GenKey(*this, caps, b); |
| 1824 | } |
| 1825 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1826 | GrGLSLFragmentProcessor* GrSpecularLightingEffect::onCreateGLSLInstance() const { |
robertphillips | d3b32bf | 2016-02-05 07:15:39 -0800 | [diff] [blame^] | 1827 | return new GrGLSpecularLightingEffect; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1828 | } |
| 1829 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1830 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1831 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1832 | const GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1833 | SkScalar surfaceScale = d->fRandom->nextSScalar1(); |
| 1834 | SkScalar ks = d->fRandom->nextUScalar1(); |
| 1835 | SkScalar shininess = d->fRandom->nextUScalar1(); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1836 | SkAutoTUnref<SkImageFilterLight> light(create_random_light(d->fRandom)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1837 | SkMatrix matrix; |
| 1838 | for (int i = 0; i < 9; i++) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1839 | matrix[i] = d->fRandom->nextUScalar1(); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1840 | } |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1841 | BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1842 | return GrSpecularLightingEffect::Create(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1843 | light, surfaceScale, matrix, ks, shininess, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1844 | } |
| 1845 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1846 | /////////////////////////////////////////////////////////////////////////////// |
| 1847 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1848 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1849 | GrGLSLFragmentBuilder* fragBuilder, |
| 1850 | SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1851 | const char* ks; |
| 1852 | const char* shininess; |
| 1853 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1854 | fKSUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1855 | kFloat_GrSLType, kDefault_GrSLPrecision, "KS", &ks); |
| 1856 | fShininessUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1857 | kFloat_GrSLType, |
| 1858 | kDefault_GrSLPrecision, |
| 1859 | "Shininess", |
| 1860 | &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1861 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1862 | static const GrGLSLShaderVar gLightArgs[] = { |
| 1863 | GrGLSLShaderVar("normal", kVec3f_GrSLType), |
| 1864 | GrGLSLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1865 | GrGLSLShaderVar("lightColor", kVec3f_GrSLType) |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1866 | }; |
| 1867 | SkString lightBody; |
| 1868 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1869 | 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] | 1870 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1871 | lightBody.appendf("\treturn vec4(color, max(max(color.r, color.g), color.b));\n"); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1872 | fragBuilder->emitFunction(kVec4f_GrSLType, |
| 1873 | "light", |
| 1874 | SK_ARRAY_COUNT(gLightArgs), |
| 1875 | gLightArgs, |
| 1876 | lightBody.c_str(), |
| 1877 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1878 | } |
| 1879 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1880 | void GrGLSpecularLightingEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 1881 | const GrProcessor& effect) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1882 | INHERITED::onSetData(pdman, effect); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1883 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1884 | pdman.set1f(fKSUni, spec.ks()); |
| 1885 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1886 | } |
| 1887 | |
| 1888 | /////////////////////////////////////////////////////////////////////////////// |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1889 | void GrGLLight::emitLightColorUniform(GrGLSLUniformHandler* uniformHandler) { |
| 1890 | fColorUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1891 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1892 | "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1893 | } |
| 1894 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1895 | void GrGLLight::emitLightColor(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1896 | GrGLSLFragmentBuilder* fragBuilder, |
| 1897 | const char *surfaceToLight) { |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1898 | fragBuilder->codeAppend(uniformHandler->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1899 | } |
| 1900 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1901 | void GrGLLight::setData(const GrGLSLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1902 | const SkImageFilterLight* light) const { |
robertphillips | 3d32d76 | 2015-07-13 13:16:44 -0700 | [diff] [blame] | 1903 | setUniformPoint3(pdman, fColorUni, |
| 1904 | light->color().makeScale(SkScalarInvert(SkIntToScalar(255)))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1905 | } |
| 1906 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1907 | /////////////////////////////////////////////////////////////////////////////// |
| 1908 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1909 | void GrGLDistantLight::setData(const GrGLSLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1910 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1911 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1912 | SkASSERT(light->type() == SkImageFilterLight::kDistant_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1913 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1914 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1915 | } |
| 1916 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1917 | void GrGLDistantLight::emitSurfaceToLight(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1918 | GrGLSLFragmentBuilder* fragBuilder, |
| 1919 | const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1920 | const char* dir; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1921 | fDirectionUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1922 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1923 | "LightDirection", &dir); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1924 | fragBuilder->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1925 | } |
| 1926 | |
| 1927 | /////////////////////////////////////////////////////////////////////////////// |
| 1928 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1929 | void GrGLPointLight::setData(const GrGLSLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1930 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1931 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1932 | SkASSERT(light->type() == SkImageFilterLight::kPoint_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1933 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1934 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1935 | } |
| 1936 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1937 | void GrGLPointLight::emitSurfaceToLight(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1938 | GrGLSLFragmentBuilder* fragBuilder, |
| 1939 | const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1940 | const char* loc; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1941 | fLocationUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1942 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1943 | "LightLocation", &loc); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1944 | fragBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1945 | loc, fragBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1946 | } |
| 1947 | |
| 1948 | /////////////////////////////////////////////////////////////////////////////// |
| 1949 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1950 | void GrGLSpotLight::setData(const GrGLSLProgramDataManager& pdman, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1951 | const SkImageFilterLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1952 | INHERITED::setData(pdman, light); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 1953 | SkASSERT(light->type() == SkImageFilterLight::kSpot_LightType); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1954 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1955 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1956 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1957 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1958 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1959 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1960 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1961 | } |
| 1962 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1963 | void GrGLSpotLight::emitSurfaceToLight(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1964 | GrGLSLFragmentBuilder* fragBuilder, |
| 1965 | const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1966 | const char* location; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1967 | fLocationUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1968 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1969 | "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1970 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1971 | fragBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1972 | location, fragBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1973 | } |
| 1974 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1975 | void GrGLSpotLight::emitLightColor(GrGLSLUniformHandler* uniformHandler, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1976 | GrGLSLFragmentBuilder* fragBuilder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1977 | const char *surfaceToLight) { |
| 1978 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1979 | const char* color = uniformHandler->getUniformCStr(this->lightColorUni()); // created by parent class. |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1980 | |
| 1981 | const char* exponent; |
| 1982 | const char* cosInner; |
| 1983 | const char* cosOuter; |
| 1984 | const char* coneScale; |
| 1985 | const char* s; |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1986 | fExponentUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1987 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1988 | "Exponent", &exponent); |
| 1989 | fCosInnerConeAngleUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1990 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1991 | "CosInnerConeAngle", &cosInner); |
| 1992 | fCosOuterConeAngleUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1993 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1994 | "CosOuterConeAngle", &cosOuter); |
| 1995 | fConeScaleUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1996 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1997 | "ConeScale", &coneScale); |
| 1998 | fSUni = uniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility, |
| 1999 | kVec3f_GrSLType, kDefault_GrSLPrecision, "S", &s); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 2000 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 2001 | static const GrGLSLShaderVar gLightColorArgs[] = { |
| 2002 | GrGLSLShaderVar("surfaceToLight", kVec3f_GrSLType) |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 2003 | }; |
| 2004 | SkString lightColorBody; |
| 2005 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 2006 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 2007 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 2008 | lightColorBody.appendf("\t}\n"); |
| 2009 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 2010 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 2011 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 2012 | color, cosOuter, coneScale); |
| 2013 | lightColorBody.appendf("\t}\n"); |
caryclark | 0bccd87 | 2015-10-20 10:04:03 -0700 | [diff] [blame] | 2014 | lightColorBody.appendf("\treturn %s;\n", color); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 2015 | fragBuilder->emitFunction(kVec3f_GrSLType, |
| 2016 | "lightColor", |
| 2017 | SK_ARRAY_COUNT(gLightColorArgs), |
| 2018 | gLightColorArgs, |
| 2019 | lightColorBody.c_str(), |
| 2020 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 2021 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 2022 | fragBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 2023 | } |
| 2024 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 2025 | #endif |
| 2026 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2027 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 2028 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 2029 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2030 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |