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" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 11 | #include "SkReadBuffer.h" |
| 12 | #include "SkWriteBuffer.h" |
| 13 | #include "SkReadBuffer.h" |
| 14 | #include "SkWriteBuffer.h" |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 15 | #include "SkTypes.h" |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 16 | |
| 17 | #if SK_SUPPORT_GPU |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 18 | #include "effects/GrSingleTextureEffect.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 19 | #include "gl/GrGLProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 20 | #include "gl/builders/GrGLProgramBuilder.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 21 | #include "GrProcessor.h" |
| 22 | #include "GrTBackendProcessorFactory.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 23 | |
| 24 | class GrGLDiffuseLightingEffect; |
| 25 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 26 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 27 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 28 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 29 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 30 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 31 | namespace { |
| 32 | |
| 33 | const SkScalar gOneThird = SkScalarInvert(SkIntToScalar(3)); |
| 34 | const SkScalar gTwoThirds = SkScalarDiv(SkIntToScalar(2), SkIntToScalar(3)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 35 | const SkScalar gOneHalf = 0.5f; |
| 36 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 37 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 38 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 39 | void setUniformPoint3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 40 | const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 41 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 42 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 43 | } |
| 44 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 45 | void setUniformNormal3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 46 | const SkPoint3& point) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 47 | setUniformPoint3(pdman, uni, SkPoint3(point.fX, point.fY, point.fZ)); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 48 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 49 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 50 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 51 | // Shift matrix components to the left, as we advance pixels to the right. |
| 52 | inline void shiftMatrixLeft(int m[9]) { |
| 53 | m[0] = m[1]; |
| 54 | m[3] = m[4]; |
| 55 | m[6] = m[7]; |
| 56 | m[1] = m[2]; |
| 57 | m[4] = m[5]; |
| 58 | m[7] = m[8]; |
| 59 | } |
| 60 | |
| 61 | class DiffuseLightingType { |
| 62 | public: |
| 63 | DiffuseLightingType(SkScalar kd) |
| 64 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 65 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 66 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 67 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 68 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 69 | SkPoint3 color(lightColor * colorScale); |
| 70 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 71 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 72 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 73 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 74 | } |
| 75 | private: |
| 76 | SkScalar fKD; |
| 77 | }; |
| 78 | |
| 79 | class SpecularLightingType { |
| 80 | public: |
| 81 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 82 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 83 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 84 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 85 | SkPoint3 halfDir(surfaceTolight); |
| 86 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
| 87 | halfDir.normalize(); |
| 88 | SkScalar colorScale = SkScalarMul(fKS, |
| 89 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 90 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 91 | SkPoint3 color(lightColor * colorScale); |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 92 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(color.maxComponent()), 255), |
| 93 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 94 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 95 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 96 | } |
| 97 | private: |
| 98 | SkScalar fKS; |
| 99 | SkScalar fShininess; |
| 100 | }; |
| 101 | |
| 102 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 103 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 104 | } |
| 105 | |
| 106 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
| 107 | SkPoint3 vector(SkScalarMul(-x, surfaceScale), |
| 108 | SkScalarMul(-y, surfaceScale), |
| 109 | SK_Scalar1); |
| 110 | vector.normalize(); |
| 111 | return vector; |
| 112 | } |
| 113 | |
| 114 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 115 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 116 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 117 | surfaceScale); |
| 118 | } |
| 119 | |
| 120 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 121 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 122 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 123 | surfaceScale); |
| 124 | } |
| 125 | |
| 126 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 127 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 128 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 129 | surfaceScale); |
| 130 | } |
| 131 | |
| 132 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 133 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 134 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 135 | surfaceScale); |
| 136 | } |
| 137 | |
| 138 | |
| 139 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 140 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 141 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 142 | surfaceScale); |
| 143 | } |
| 144 | |
| 145 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 146 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 147 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 148 | surfaceScale); |
| 149 | } |
| 150 | |
| 151 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 152 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 153 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 154 | surfaceScale); |
| 155 | } |
| 156 | |
| 157 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 158 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 159 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 160 | surfaceScale); |
| 161 | } |
| 162 | |
| 163 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 164 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 165 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 166 | surfaceScale); |
| 167 | } |
| 168 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 169 | template <class LightingType, class LightType> void lightBitmap( |
| 170 | const LightingType& lightingType, const SkLight* light, const SkBitmap& src, SkBitmap* dst, |
| 171 | SkScalar surfaceScale, const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 172 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 173 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 174 | int left = bounds.left(), right = bounds.right(); |
| 175 | int bottom = bounds.bottom(); |
| 176 | int y = bounds.top(); |
| 177 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 178 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 179 | int x = left; |
| 180 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 181 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 182 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 183 | m[4] = SkGetPackedA32(*row1++); |
| 184 | m[5] = SkGetPackedA32(*row1++); |
| 185 | m[7] = SkGetPackedA32(*row2++); |
| 186 | m[8] = SkGetPackedA32(*row2++); |
| 187 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 188 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 189 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 190 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 191 | { |
| 192 | shiftMatrixLeft(m); |
| 193 | m[5] = SkGetPackedA32(*row1++); |
| 194 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 195 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 196 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 197 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 198 | } |
| 199 | shiftMatrixLeft(m); |
| 200 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 201 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 202 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 203 | } |
| 204 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 205 | for (++y; y < bottom - 1; ++y) { |
| 206 | int x = left; |
| 207 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 208 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 209 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 210 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 211 | m[1] = SkGetPackedA32(*row0++); |
| 212 | m[2] = SkGetPackedA32(*row0++); |
| 213 | m[4] = SkGetPackedA32(*row1++); |
| 214 | m[5] = SkGetPackedA32(*row1++); |
| 215 | m[7] = SkGetPackedA32(*row2++); |
| 216 | m[8] = SkGetPackedA32(*row2++); |
| 217 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 218 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 219 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 220 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 221 | shiftMatrixLeft(m); |
| 222 | m[2] = SkGetPackedA32(*row0++); |
| 223 | m[5] = SkGetPackedA32(*row1++); |
| 224 | m[8] = SkGetPackedA32(*row2++); |
| 225 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 226 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 227 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 228 | } |
| 229 | shiftMatrixLeft(m); |
| 230 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 231 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 232 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 236 | int x = left; |
| 237 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 238 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 239 | int m[9]; |
| 240 | m[1] = SkGetPackedA32(*row0++); |
| 241 | m[2] = SkGetPackedA32(*row0++); |
| 242 | m[4] = SkGetPackedA32(*row1++); |
| 243 | m[5] = SkGetPackedA32(*row1++); |
| 244 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 245 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 246 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 247 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 248 | { |
| 249 | shiftMatrixLeft(m); |
| 250 | m[2] = SkGetPackedA32(*row0++); |
| 251 | m[5] = SkGetPackedA32(*row1++); |
| 252 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 253 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 254 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 255 | } |
| 256 | shiftMatrixLeft(m); |
| 257 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 258 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 259 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 260 | } |
| 261 | } |
| 262 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 263 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 264 | SkPoint3 point; |
| 265 | point.fX = buffer.readScalar(); |
| 266 | point.fY = buffer.readScalar(); |
| 267 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 268 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 269 | SkScalarIsFinite(point.fY) && |
| 270 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 271 | return point; |
| 272 | }; |
| 273 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 274 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 275 | buffer.writeScalar(point.fX); |
| 276 | buffer.writeScalar(point.fY); |
| 277 | buffer.writeScalar(point.fZ); |
| 278 | }; |
| 279 | |
| 280 | class SkDiffuseLightingImageFilter : public SkLightingImageFilter { |
| 281 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 282 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter*, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 283 | const CropRect*, uint32_t uniqueID = 0); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 284 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 285 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 286 | SkScalar kd() const { return fKD; } |
| 287 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 288 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 289 | SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 290 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect, |
| 291 | uint32_t uniqueID); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 292 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 293 | explicit SkDiffuseLightingImageFilter(SkReadBuffer& buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 294 | #endif |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 295 | virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 296 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 297 | SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 298 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 299 | virtual bool asFragmentProcessor(GrFragmentProcessor**, GrTexture*, const SkMatrix&, |
| 300 | const SkIRect& bounds) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 301 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 302 | |
| 303 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 304 | friend class SkLightingImageFilter; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 305 | typedef SkLightingImageFilter INHERITED; |
| 306 | SkScalar fKD; |
| 307 | }; |
| 308 | |
| 309 | class SkSpecularLightingImageFilter : public SkLightingImageFilter { |
| 310 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 311 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 312 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*, |
| 313 | uint32_t uniqueID = 0); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 314 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 315 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 316 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 317 | SkScalar ks() const { return fKS; } |
| 318 | SkScalar shininess() const { return fShininess; } |
| 319 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 320 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 321 | SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 322 | SkScalar shininess, SkImageFilter* input, const CropRect*, |
| 323 | uint32_t uniqueID); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 324 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 325 | explicit SkSpecularLightingImageFilter(SkReadBuffer& buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 326 | #endif |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 327 | virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 328 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 329 | SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 330 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 331 | virtual bool asFragmentProcessor(GrFragmentProcessor**, GrTexture*, const SkMatrix&, |
| 332 | const SkIRect& bounds) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 333 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 334 | |
| 335 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 336 | SkScalar fKS; |
| 337 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 338 | friend class SkLightingImageFilter; |
| 339 | typedef SkLightingImageFilter INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 340 | }; |
| 341 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 342 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 343 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 344 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 345 | public: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 346 | GrLightingEffect(GrTexture* texture, const SkLight* light, SkScalar surfaceScale, const SkMatrix& matrix); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 347 | virtual ~GrLightingEffect(); |
| 348 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 349 | const SkLight* light() const { return fLight; } |
| 350 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 351 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 352 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 353 | protected: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 354 | virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 355 | |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame^] | 356 | virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERRIDE { |
| 357 | // lighting shaders are complicated. We just throw up our hands. |
| 358 | inout->fValidFlags = 0; |
| 359 | inout->fIsSingleComponent = false; |
| 360 | } |
| 361 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 362 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 363 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 364 | const SkLight* fLight; |
| 365 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 366 | SkMatrix fFilterMatrix; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 367 | }; |
| 368 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 369 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 370 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 371 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 372 | const SkLight* light, |
| 373 | SkScalar surfaceScale, |
| 374 | const SkMatrix& matrix, |
| 375 | SkScalar kd) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 376 | return SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 377 | light, |
| 378 | surfaceScale, |
| 379 | matrix, |
| 380 | kd)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 381 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 382 | |
| 383 | static const char* Name() { return "DiffuseLighting"; } |
| 384 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 385 | typedef GrGLDiffuseLightingEffect GLProcessor; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 386 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 387 | virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 388 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 389 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 390 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 391 | virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 392 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 393 | GrDiffuseLightingEffect(GrTexture* texture, |
| 394 | const SkLight* light, |
| 395 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 396 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 397 | SkScalar kd); |
| 398 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 399 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 400 | typedef GrLightingEffect INHERITED; |
| 401 | SkScalar fKD; |
| 402 | }; |
| 403 | |
| 404 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 405 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 406 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 407 | const SkLight* light, |
| 408 | SkScalar surfaceScale, |
| 409 | const SkMatrix& matrix, |
| 410 | SkScalar ks, |
| 411 | SkScalar shininess) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 412 | return SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 413 | light, |
| 414 | surfaceScale, |
| 415 | matrix, |
| 416 | ks, |
| 417 | shininess)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 418 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 419 | static const char* Name() { return "SpecularLighting"; } |
| 420 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 421 | typedef GrGLSpecularLightingEffect GLProcessor; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 422 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 423 | virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 424 | SkScalar ks() const { return fKS; } |
| 425 | SkScalar shininess() const { return fShininess; } |
| 426 | |
| 427 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 428 | virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 429 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 430 | GrSpecularLightingEffect(GrTexture* texture, |
| 431 | const SkLight* light, |
| 432 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 433 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 434 | SkScalar ks, |
| 435 | SkScalar shininess); |
| 436 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 437 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 438 | typedef GrLightingEffect INHERITED; |
| 439 | SkScalar fKS; |
| 440 | SkScalar fShininess; |
| 441 | }; |
| 442 | |
| 443 | /////////////////////////////////////////////////////////////////////////////// |
| 444 | |
| 445 | class GrGLLight { |
| 446 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 447 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 448 | |
| 449 | /** |
| 450 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 451 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 452 | */ |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 453 | void emitLightColorUniform(GrGLProgramBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 454 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 455 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 456 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 457 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 458 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 459 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 460 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 461 | * and so this function only needs to be overridden if the light color varies spatially. |
| 462 | */ |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 463 | virtual void emitSurfaceToLight(GrGLProgramBuilder*, const char* z) = 0; |
| 464 | virtual void emitLightColor(GrGLProgramBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 465 | |
| 466 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 467 | // INHERITED::setData(). |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 468 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 469 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 470 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 471 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 472 | /** |
| 473 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 474 | * function. |
| 475 | */ |
| 476 | UniformHandle lightColorUni() const { return fColorUni; } |
| 477 | |
| 478 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 479 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 480 | |
| 481 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 482 | }; |
| 483 | |
| 484 | /////////////////////////////////////////////////////////////////////////////// |
| 485 | |
| 486 | class GrGLDistantLight : public GrGLLight { |
| 487 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 488 | virtual ~GrGLDistantLight() {} |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 489 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 490 | const SkLight* light) const SK_OVERRIDE; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 491 | virtual void emitSurfaceToLight(GrGLProgramBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 492 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 493 | private: |
| 494 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 495 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 496 | }; |
| 497 | |
| 498 | /////////////////////////////////////////////////////////////////////////////// |
| 499 | |
| 500 | class GrGLPointLight : public GrGLLight { |
| 501 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 502 | virtual ~GrGLPointLight() {} |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 503 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 504 | const SkLight* light) const SK_OVERRIDE; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 505 | virtual void emitSurfaceToLight(GrGLProgramBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 506 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 507 | private: |
| 508 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 509 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 510 | }; |
| 511 | |
| 512 | /////////////////////////////////////////////////////////////////////////////// |
| 513 | |
| 514 | class GrGLSpotLight : public GrGLLight { |
| 515 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 516 | virtual ~GrGLSpotLight() {} |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 517 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 518 | const SkLight* light) const SK_OVERRIDE; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 519 | virtual void emitSurfaceToLight(GrGLProgramBuilder*, const char* z) SK_OVERRIDE; |
| 520 | virtual void emitLightColor(GrGLProgramBuilder*, const char *surfaceToLight) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 521 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 522 | private: |
| 523 | typedef GrGLLight INHERITED; |
| 524 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 525 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 526 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 527 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 528 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 529 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 530 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 531 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 532 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 533 | #else |
| 534 | |
| 535 | class GrGLLight; |
| 536 | |
| 537 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 538 | |
| 539 | }; |
| 540 | |
| 541 | /////////////////////////////////////////////////////////////////////////////// |
| 542 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 543 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 544 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 545 | SK_DECLARE_INST_COUNT(SkLight) |
| 546 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 547 | enum LightType { |
| 548 | kDistant_LightType, |
| 549 | kPoint_LightType, |
| 550 | kSpot_LightType, |
| 551 | }; |
| 552 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 553 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 554 | virtual GrGLLight* createGLLight() const = 0; |
| 555 | virtual bool isEqual(const SkLight& other) const { |
| 556 | return fColor == other.fColor; |
| 557 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 558 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 559 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 560 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 561 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 562 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 563 | void flattenLight(SkWriteBuffer& buffer) const; |
| 564 | static SkLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 565 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 566 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 567 | SkLight(SkColor color) |
| 568 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 569 | SkIntToScalar(SkColorGetG(color)), |
| 570 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 571 | SkLight(const SkPoint3& color) |
| 572 | : fColor(color) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 573 | SkLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 574 | fColor = readPoint3(buffer); |
| 575 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 576 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 577 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 578 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 579 | |
| 580 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 581 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 582 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 583 | }; |
| 584 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 585 | /////////////////////////////////////////////////////////////////////////////// |
| 586 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 587 | class SkDistantLight : public SkLight { |
| 588 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 589 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 590 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 591 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 592 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 593 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 594 | return fDirection; |
| 595 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 596 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 597 | virtual LightType type() const { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 598 | const SkPoint3& direction() const { return fDirection; } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 599 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
| 600 | #if SK_SUPPORT_GPU |
| 601 | return SkNEW(GrGLDistantLight); |
| 602 | #else |
| 603 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 604 | return NULL; |
| 605 | #endif |
| 606 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 607 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return false; } |
| 608 | |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 609 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
| 610 | if (other.type() != kDistant_LightType) { |
| 611 | return false; |
| 612 | } |
| 613 | |
| 614 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 615 | return INHERITED::isEqual(other) && |
| 616 | fDirection == o.fDirection; |
| 617 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 618 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 619 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 620 | fDirection = readPoint3(buffer); |
| 621 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 622 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 623 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 624 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 625 | : INHERITED(color), fDirection(direction) { |
| 626 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 627 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 628 | return new SkDistantLight(direction(), color()); |
| 629 | } |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 630 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 631 | writePoint3(fDirection, buffer); |
| 632 | } |
| 633 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 634 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 635 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 636 | SkPoint3 fDirection; |
| 637 | }; |
| 638 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 639 | /////////////////////////////////////////////////////////////////////////////// |
| 640 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 641 | class SkPointLight : public SkLight { |
| 642 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 643 | SkPointLight(const SkPoint3& location, SkColor color) |
| 644 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 645 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 646 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 647 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 648 | fLocation.fY - SkIntToScalar(y), |
| 649 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 650 | direction.normalize(); |
| 651 | return direction; |
| 652 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 653 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 654 | virtual LightType type() const { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 655 | const SkPoint3& location() const { return fLocation; } |
| 656 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 657 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 658 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 659 | #else |
| 660 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 661 | return NULL; |
| 662 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 663 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 664 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 665 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 666 | if (other.type() != kPoint_LightType) { |
| 667 | return false; |
| 668 | } |
| 669 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 670 | return INHERITED::isEqual(other) && |
| 671 | fLocation == o.fLocation; |
| 672 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 673 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 674 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 675 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 676 | // Use X scale and Y scale on Z and average the result |
| 677 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 678 | matrix.mapVectors(&locationZ, 1); |
| 679 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 680 | return new SkPointLight(location, color()); |
| 681 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 682 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 683 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 684 | fLocation = readPoint3(buffer); |
| 685 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 686 | |
| 687 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 688 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 689 | : INHERITED(color), fLocation(location) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 690 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 691 | writePoint3(fLocation, buffer); |
| 692 | } |
| 693 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 694 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 695 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 696 | SkPoint3 fLocation; |
| 697 | }; |
| 698 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 699 | /////////////////////////////////////////////////////////////////////////////// |
| 700 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 701 | class SkSpotLight : public SkLight { |
| 702 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 703 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle, SkColor color) |
| 704 | : INHERITED(color), |
| 705 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 706 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 707 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 708 | { |
| 709 | fS = target - location; |
| 710 | fS.normalize(); |
| 711 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 712 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 713 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 714 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 715 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 716 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 717 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 718 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 719 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 720 | // Use X scale and Y scale on Z and average the result |
| 721 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 722 | matrix.mapVectors(&locationZ, 1); |
| 723 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 724 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 725 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 726 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 727 | matrix.mapVectors(&targetZ, 1); |
| 728 | SkPoint3 target(target2.fX, target2.fY, SkScalarAve(targetZ.fX, targetZ.fY)); |
| 729 | SkPoint3 s = target - location; |
| 730 | s.normalize(); |
| 731 | return new SkSpotLight(location, target, fSpecularExponent, fCosOuterConeAngle, fCosInnerConeAngle, fConeScale, s, color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 732 | } |
| 733 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 734 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 735 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 736 | fLocation.fY - SkIntToScalar(y), |
| 737 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 738 | direction.normalize(); |
| 739 | return direction; |
| 740 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 741 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 742 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 743 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 744 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 745 | } |
| 746 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 747 | if (cosAngle < fCosInnerConeAngle) { |
| 748 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 749 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 750 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 751 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 752 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 753 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 754 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 755 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 756 | #else |
| 757 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 758 | return NULL; |
| 759 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 760 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 761 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 762 | virtual LightType type() const { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 763 | const SkPoint3& location() const { return fLocation; } |
| 764 | const SkPoint3& target() const { return fTarget; } |
| 765 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 766 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 767 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 768 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 769 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 770 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 771 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 772 | fLocation = readPoint3(buffer); |
| 773 | fTarget = readPoint3(buffer); |
| 774 | fSpecularExponent = buffer.readScalar(); |
| 775 | fCosOuterConeAngle = buffer.readScalar(); |
| 776 | fCosInnerConeAngle = buffer.readScalar(); |
| 777 | fConeScale = buffer.readScalar(); |
| 778 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 779 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 780 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 781 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 782 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 783 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 784 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 785 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cosOuterConeAngle, SkScalar cosInnerConeAngle, SkScalar coneScale, const SkPoint3& s, const SkPoint3& color) |
| 786 | : INHERITED(color), |
| 787 | fLocation(location), |
| 788 | fTarget(target), |
| 789 | fSpecularExponent(specularExponent), |
| 790 | fCosOuterConeAngle(cosOuterConeAngle), |
| 791 | fCosInnerConeAngle(cosInnerConeAngle), |
| 792 | fConeScale(coneScale), |
| 793 | fS(s) |
| 794 | { |
| 795 | } |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 796 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 797 | writePoint3(fLocation, buffer); |
| 798 | writePoint3(fTarget, buffer); |
| 799 | buffer.writeScalar(fSpecularExponent); |
| 800 | buffer.writeScalar(fCosOuterConeAngle); |
| 801 | buffer.writeScalar(fCosInnerConeAngle); |
| 802 | buffer.writeScalar(fConeScale); |
| 803 | writePoint3(fS, buffer); |
| 804 | } |
| 805 | |
senorblanco@chromium.org | bd9fad6 | 2012-07-11 16:25:37 +0000 | [diff] [blame] | 806 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 807 | if (other.type() != kSpot_LightType) { |
| 808 | return false; |
| 809 | } |
| 810 | |
| 811 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 812 | return INHERITED::isEqual(other) && |
| 813 | fLocation == o.fLocation && |
| 814 | fTarget == o.fTarget && |
| 815 | fSpecularExponent == o.fSpecularExponent && |
| 816 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 817 | } |
| 818 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 819 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 820 | static const SkScalar kSpecularExponentMin; |
| 821 | static const SkScalar kSpecularExponentMax; |
| 822 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 823 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 824 | SkPoint3 fLocation; |
| 825 | SkPoint3 fTarget; |
| 826 | SkScalar fSpecularExponent; |
| 827 | SkScalar fCosOuterConeAngle; |
| 828 | SkScalar fCosInnerConeAngle; |
| 829 | SkScalar fConeScale; |
| 830 | SkPoint3 fS; |
| 831 | }; |
| 832 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 833 | // According to the spec, the specular term should be in the range [1, 128] : |
| 834 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 835 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 836 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 837 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 838 | /////////////////////////////////////////////////////////////////////////////// |
| 839 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 840 | void SkLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 841 | // Write type first, then baseclass, then subclass. |
| 842 | buffer.writeInt(this->type()); |
| 843 | writePoint3(fColor, buffer); |
| 844 | this->onFlattenLight(buffer); |
| 845 | } |
| 846 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 847 | /*static*/ SkLight* SkLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 848 | // Read type first. |
| 849 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 850 | switch (type) { |
| 851 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 852 | // then subclass, same order as flattenLight. |
| 853 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 854 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 855 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 856 | default: |
| 857 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 858 | buffer.validate(false); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 859 | return NULL; |
| 860 | } |
| 861 | } |
| 862 | /////////////////////////////////////////////////////////////////////////////// |
| 863 | |
senorblanco | 9ea3d57 | 2014-07-08 09:16:22 -0700 | [diff] [blame] | 864 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 865 | SkImageFilter* input, const CropRect* cropRect, |
| 866 | uint32_t uniqueID) |
| 867 | : INHERITED(1, &input, cropRect, uniqueID) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 868 | , fLight(SkRef(light)) |
| 869 | , fSurfaceScale(surfaceScale / 255) |
| 870 | {} |
| 871 | |
| 872 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 873 | SkColor lightColor, |
| 874 | SkScalar surfaceScale, |
| 875 | SkScalar kd, |
| 876 | SkImageFilter* input, |
| 877 | const CropRect* cropRect) { |
| 878 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 879 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 880 | } |
| 881 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 882 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 883 | SkColor lightColor, |
| 884 | SkScalar surfaceScale, |
| 885 | SkScalar kd, |
| 886 | SkImageFilter* input, |
| 887 | const CropRect* cropRect) { |
| 888 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 889 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 890 | } |
| 891 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 892 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 893 | const SkPoint3& target, |
| 894 | SkScalar specularExponent, |
| 895 | SkScalar cutoffAngle, |
| 896 | SkColor lightColor, |
| 897 | SkScalar surfaceScale, |
| 898 | SkScalar kd, |
| 899 | SkImageFilter* input, |
| 900 | const CropRect* cropRect) { |
| 901 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 902 | cutoffAngle, lightColor))); |
| 903 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 904 | } |
| 905 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 906 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 907 | SkColor lightColor, |
| 908 | SkScalar surfaceScale, |
| 909 | SkScalar ks, |
| 910 | SkScalar shine, |
| 911 | SkImageFilter* input, |
| 912 | const CropRect* cropRect) { |
| 913 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 914 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 915 | } |
| 916 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 917 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 918 | SkColor lightColor, |
| 919 | SkScalar surfaceScale, |
| 920 | SkScalar ks, |
| 921 | SkScalar shine, |
| 922 | SkImageFilter* input, |
| 923 | const CropRect* cropRect) { |
| 924 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 925 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 926 | } |
| 927 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 928 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 929 | const SkPoint3& target, |
| 930 | SkScalar specularExponent, |
| 931 | SkScalar cutoffAngle, |
| 932 | SkColor lightColor, |
| 933 | SkScalar surfaceScale, |
| 934 | SkScalar ks, |
| 935 | SkScalar shine, |
| 936 | SkImageFilter* input, |
| 937 | const CropRect* cropRect) { |
| 938 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 939 | cutoffAngle, lightColor))); |
| 940 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 941 | } |
| 942 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 943 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 944 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 945 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 946 | SkLightingImageFilter::SkLightingImageFilter(SkReadBuffer& buffer) |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 947 | : INHERITED(1, buffer) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 948 | fLight.reset(SkLight::UnflattenLight(buffer)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 949 | fSurfaceScale = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 950 | buffer.validate(SkScalarIsFinite(fSurfaceScale)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 951 | } |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 952 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 953 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 954 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 955 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 956 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 957 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 958 | } |
| 959 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 960 | /////////////////////////////////////////////////////////////////////////////// |
| 961 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 962 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 963 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 964 | if (NULL == light) { |
| 965 | return NULL; |
| 966 | } |
| 967 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
| 968 | return NULL; |
| 969 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 970 | // According to the spec, kd can be any non-negative number : |
| 971 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 972 | if (kd < 0) { |
| 973 | return NULL; |
| 974 | } |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 975 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, (light, surfaceScale, kd, input, cropRect, uniqueID)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 976 | } |
| 977 | |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 978 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) |
| 979 | : SkLightingImageFilter(light, surfaceScale, input, cropRect, uniqueID), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 980 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 981 | { |
| 982 | } |
| 983 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 984 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 985 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkReadBuffer& buffer) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 986 | : INHERITED(buffer) |
| 987 | { |
| 988 | fKD = buffer.readScalar(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 989 | buffer.validate(SkScalarIsFinite(fKD) && (fKD >= 0)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 990 | } |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 991 | #endif |
| 992 | |
| 993 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 994 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 995 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 996 | SkScalar surfaceScale = buffer.readScalar(); |
| 997 | SkScalar kd = buffer.readScalar(); |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 998 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect(), common.uniqueID()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 999 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1000 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1001 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1002 | this->INHERITED::flatten(buffer); |
| 1003 | buffer.writeScalar(fKD); |
| 1004 | } |
| 1005 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1006 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1007 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1008 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1009 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1010 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1011 | SkImageFilter* input = getInput(0); |
| 1012 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1013 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1014 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1015 | return false; |
| 1016 | } |
| 1017 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1018 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1019 | return false; |
| 1020 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1021 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1022 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1023 | return false; |
| 1024 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1025 | |
| 1026 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1027 | return false; |
| 1028 | } |
| 1029 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1030 | SkAutoLockPixels alp(src); |
| 1031 | if (!src.getPixels()) { |
| 1032 | return false; |
| 1033 | } |
| 1034 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1035 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1036 | return false; |
| 1037 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1038 | |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1039 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1040 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1041 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1042 | offset->fX = bounds.left(); |
| 1043 | offset->fY = bounds.top(); |
| 1044 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1045 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1046 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1047 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1048 | break; |
| 1049 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1050 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1051 | break; |
| 1052 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1053 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1054 | break; |
| 1055 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1056 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1057 | return true; |
| 1058 | } |
| 1059 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1060 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1061 | bool SkDiffuseLightingImageFilter::asFragmentProcessor(GrFragmentProcessor** fp, |
| 1062 | GrTexture* texture, |
| 1063 | const SkMatrix& matrix, |
| 1064 | const SkIRect&) const { |
| 1065 | if (fp) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1066 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1067 | *fp = GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1068 | } |
| 1069 | return true; |
| 1070 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1071 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1072 | |
| 1073 | /////////////////////////////////////////////////////////////////////////////// |
| 1074 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1075 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1076 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1077 | if (NULL == light) { |
| 1078 | return NULL; |
| 1079 | } |
| 1080 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
| 1081 | return NULL; |
| 1082 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1083 | // According to the spec, ks can be any non-negative number : |
| 1084 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1085 | if (ks < 0) { |
| 1086 | return NULL; |
| 1087 | } |
| 1088 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1089 | (light, surfaceScale, ks, shininess, input, cropRect, uniqueID)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1090 | } |
| 1091 | |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1092 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) |
| 1093 | : SkLightingImageFilter(light, surfaceScale, input, cropRect, uniqueID), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1094 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1095 | fShininess(shininess) |
| 1096 | { |
| 1097 | } |
| 1098 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1099 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1100 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkReadBuffer& buffer) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1101 | : INHERITED(buffer) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1102 | { |
| 1103 | fKS = buffer.readScalar(); |
| 1104 | fShininess = buffer.readScalar(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1105 | buffer.validate(SkScalarIsFinite(fKS) && (fKS >= 0) && |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 1106 | SkScalarIsFinite(fShininess)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1107 | } |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1108 | #endif |
| 1109 | |
| 1110 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1111 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1112 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1113 | SkScalar surfaceScale = buffer.readScalar(); |
| 1114 | SkScalar ks = buffer.readScalar(); |
| 1115 | SkScalar shine = buffer.readScalar(); |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1116 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect(), common.uniqueID()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1117 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1118 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1119 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1120 | this->INHERITED::flatten(buffer); |
| 1121 | buffer.writeScalar(fKS); |
| 1122 | buffer.writeScalar(fShininess); |
| 1123 | } |
| 1124 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1125 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1126 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1127 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1128 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1129 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1130 | SkImageFilter* input = getInput(0); |
| 1131 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1132 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1133 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1134 | return false; |
| 1135 | } |
| 1136 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1137 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1138 | return false; |
| 1139 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1140 | |
| 1141 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1142 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1143 | return false; |
| 1144 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1145 | |
| 1146 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1147 | return false; |
| 1148 | } |
| 1149 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1150 | SkAutoLockPixels alp(src); |
| 1151 | if (!src.getPixels()) { |
| 1152 | return false; |
| 1153 | } |
| 1154 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1155 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1156 | return false; |
| 1157 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1158 | |
| 1159 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1160 | offset->fX = bounds.left(); |
| 1161 | offset->fY = bounds.top(); |
| 1162 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1163 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1164 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1165 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1166 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1167 | break; |
| 1168 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1169 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1170 | break; |
| 1171 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1172 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1173 | break; |
| 1174 | } |
| 1175 | return true; |
| 1176 | } |
| 1177 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1178 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1179 | bool SkSpecularLightingImageFilter::asFragmentProcessor(GrFragmentProcessor** fp, |
| 1180 | GrTexture* texture, |
| 1181 | const SkMatrix& matrix, |
| 1182 | const SkIRect&) const { |
| 1183 | if (fp) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1184 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1185 | *fp = GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1186 | } |
| 1187 | return true; |
| 1188 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1189 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1190 | |
| 1191 | /////////////////////////////////////////////////////////////////////////////// |
| 1192 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1193 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1194 | |
| 1195 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1196 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1197 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1198 | SkScalarToFloat(random->nextSScalar1()), |
| 1199 | SkScalarToFloat(random->nextSScalar1())); |
| 1200 | } |
| 1201 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1202 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1203 | int type = random->nextULessThan(3); |
| 1204 | switch (type) { |
| 1205 | case 0: { |
| 1206 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1207 | } |
| 1208 | case 1: { |
| 1209 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1210 | } |
| 1211 | case 2: { |
| 1212 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1213 | random_point3(random), |
| 1214 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1215 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1216 | random->nextU())); |
| 1217 | } |
| 1218 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1219 | SkFAIL("Unexpected value."); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1220 | return NULL; |
| 1221 | } |
| 1222 | } |
| 1223 | |
| 1224 | } |
| 1225 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1226 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1227 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1228 | GrGLLightingEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1229 | virtual ~GrGLLightingEffect(); |
| 1230 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1231 | virtual void emitCode(GrGLProgramBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1232 | const GrFragmentProcessor&, |
| 1233 | const GrProcessorKey&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1234 | const char* outputColor, |
| 1235 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1236 | const TransformedCoordsArray&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1237 | const TextureSamplerArray&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1238 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1239 | static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1240 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1241 | /** |
| 1242 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1243 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1244 | virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1245 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1246 | protected: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1247 | virtual void emitLightFunc(GrGLProgramBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1248 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1249 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1250 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1251 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1252 | UniformHandle fImageIncrementUni; |
| 1253 | UniformHandle fSurfaceScaleUni; |
| 1254 | GrGLLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1255 | }; |
| 1256 | |
| 1257 | /////////////////////////////////////////////////////////////////////////////// |
| 1258 | |
| 1259 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1260 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1261 | GrGLDiffuseLightingEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1262 | virtual void emitLightFunc(GrGLProgramBuilder*, SkString* funcName) SK_OVERRIDE; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1263 | virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1264 | |
| 1265 | private: |
| 1266 | typedef GrGLLightingEffect INHERITED; |
| 1267 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1268 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1269 | }; |
| 1270 | |
| 1271 | /////////////////////////////////////////////////////////////////////////////// |
| 1272 | |
| 1273 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1274 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1275 | GrGLSpecularLightingEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1276 | virtual void emitLightFunc(GrGLProgramBuilder*, SkString* funcName) SK_OVERRIDE; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1277 | virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1278 | |
| 1279 | private: |
| 1280 | typedef GrGLLightingEffect INHERITED; |
| 1281 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1282 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1283 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1284 | }; |
| 1285 | |
| 1286 | /////////////////////////////////////////////////////////////////////////////// |
| 1287 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1288 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1289 | const SkLight* light, |
| 1290 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1291 | const SkMatrix& matrix) |
bsalomon | 6267f81 | 2014-08-29 15:05:53 -0700 | [diff] [blame] | 1292 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1293 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1294 | , fSurfaceScale(surfaceScale) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1295 | , fFilterMatrix(matrix) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1296 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1297 | if (light->requiresFragmentPosition()) { |
| 1298 | this->setWillReadFragmentPosition(); |
| 1299 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1300 | } |
| 1301 | |
| 1302 | GrLightingEffect::~GrLightingEffect() { |
| 1303 | fLight->unref(); |
| 1304 | } |
| 1305 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1306 | bool GrLightingEffect::onIsEqual(const GrProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1307 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1308 | return this->texture(0) == s.texture(0) && |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1309 | fLight->isEqual(*s.fLight) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1310 | fSurfaceScale == s.fSurfaceScale; |
| 1311 | } |
| 1312 | |
| 1313 | /////////////////////////////////////////////////////////////////////////////// |
| 1314 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1315 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1316 | const SkLight* light, |
| 1317 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1318 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1319 | SkScalar kd) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1320 | : INHERITED(texture, light, surfaceScale, matrix), fKD(kd) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1321 | } |
| 1322 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1323 | const GrBackendFragmentProcessorFactory& GrDiffuseLightingEffect::getFactory() const { |
| 1324 | return GrTBackendFragmentProcessorFactory<GrDiffuseLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1325 | } |
| 1326 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1327 | bool GrDiffuseLightingEffect::onIsEqual(const GrProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1328 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1329 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1330 | this->kd() == s.kd(); |
| 1331 | } |
| 1332 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1333 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1334 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1335 | GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1336 | GrContext* context, |
| 1337 | const GrDrawTargetCaps&, |
| 1338 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1339 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1340 | SkScalar kd = random->nextUScalar1(); |
| 1341 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1342 | SkMatrix matrix; |
| 1343 | for (int i = 0; i < 9; i++) { |
| 1344 | matrix[i] = random->nextUScalar1(); |
| 1345 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1346 | return GrDiffuseLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1347 | light, surfaceScale, matrix, kd); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1348 | } |
| 1349 | |
| 1350 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1351 | /////////////////////////////////////////////////////////////////////////////// |
| 1352 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1353 | GrGLLightingEffect::GrGLLightingEffect(const GrBackendProcessorFactory& factory, |
| 1354 | const GrProcessor& fp) |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1355 | : INHERITED(factory) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1356 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1357 | fLight = m.light()->createGLLight(); |
| 1358 | } |
| 1359 | |
| 1360 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1361 | delete fLight; |
| 1362 | } |
| 1363 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1364 | void GrGLLightingEffect::emitCode(GrGLProgramBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1365 | const GrFragmentProcessor&, |
| 1366 | const GrProcessorKey& key, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1367 | const char* outputColor, |
| 1368 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1369 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1370 | const TextureSamplerArray& samplers) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1371 | fImageIncrementUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1372 | kVec2f_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1373 | "ImageIncrement"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1374 | fSurfaceScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1375 | kFloat_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1376 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1377 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1378 | SkString lightFunc; |
| 1379 | this->emitLightFunc(builder, &lightFunc); |
| 1380 | static const GrGLShaderVar gSobelArgs[] = { |
| 1381 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1382 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1383 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1384 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1385 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1386 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1387 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1388 | }; |
| 1389 | SkString sobelFuncName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1390 | GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| 1391 | SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0); |
| 1392 | |
| 1393 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1394 | "sobel", |
| 1395 | SK_ARRAY_COUNT(gSobelArgs), |
| 1396 | gSobelArgs, |
| 1397 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1398 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1399 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1400 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1401 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1402 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1403 | }; |
| 1404 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1405 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1406 | "pointToNormal", |
| 1407 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1408 | gPointToNormalArgs, |
| 1409 | "\treturn normalize(vec3(-x * scale, y * scale, 1));\n", |
| 1410 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1411 | |
| 1412 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1413 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1414 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1415 | }; |
| 1416 | SkString interiorNormalBody; |
| 1417 | interiorNormalBody.appendf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], 0.25),\n" |
| 1418 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], 0.25),\n" |
| 1419 | "\t surfaceScale);\n", |
| 1420 | pointToNormalName.c_str(), |
| 1421 | sobelFuncName.c_str(), |
| 1422 | sobelFuncName.c_str()); |
| 1423 | SkString interiorNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1424 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1425 | "interiorNormal", |
| 1426 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1427 | gInteriorNormalArgs, |
| 1428 | interiorNormalBody.c_str(), |
| 1429 | &interiorNormalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1430 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1431 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1432 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1433 | |
| 1434 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1435 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1436 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1437 | int index = 0; |
| 1438 | for (int dy = -1; dy <= 1; dy++) { |
| 1439 | for (int dx = -1; dx <= 1; dx++) { |
| 1440 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1441 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1442 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
| 1443 | fsBuilder->appendTextureLookup(samplers[0], texCoords.c_str()); |
| 1444 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1445 | } |
| 1446 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1447 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1448 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1449 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1450 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1451 | fsBuilder->codeAppend(";\n"); |
| 1452 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1453 | outputColor, lightFunc.c_str(), interiorNormalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1454 | fLight->emitLightColor(builder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1455 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1456 | SkString modulate; |
| 1457 | GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1458 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1459 | } |
| 1460 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1461 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
| 1462 | const GrGLCaps& caps, GrProcessorKeyBuilder* b) { |
| 1463 | b->add32(proc.cast<GrLightingEffect>().light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1464 | } |
| 1465 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1466 | void GrGLLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1467 | const GrProcessor& proc) { |
| 1468 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1469 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1470 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1471 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1472 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1473 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1474 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1475 | } |
| 1476 | |
| 1477 | /////////////////////////////////////////////////////////////////////////////// |
| 1478 | |
| 1479 | /////////////////////////////////////////////////////////////////////////////// |
| 1480 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1481 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrBackendProcessorFactory& factory, |
| 1482 | const GrProcessor& proc) |
| 1483 | : INHERITED(factory, proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1484 | } |
| 1485 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1486 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLProgramBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1487 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1488 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1489 | kFloat_GrSLType, |
| 1490 | "KD", |
| 1491 | &kd); |
| 1492 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1493 | static const GrGLShaderVar gLightArgs[] = { |
| 1494 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1495 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1496 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1497 | }; |
| 1498 | SkString lightBody; |
| 1499 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1500 | lightBody.appendf("\treturn vec4(lightColor * clamp(colorScale, 0.0, 1.0), 1.0);\n"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1501 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1502 | "light", |
| 1503 | SK_ARRAY_COUNT(gLightArgs), |
| 1504 | gLightArgs, |
| 1505 | lightBody.c_str(), |
| 1506 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1507 | } |
| 1508 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1509 | void GrGLDiffuseLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1510 | const GrProcessor& proc) { |
| 1511 | INHERITED::setData(pdman, proc); |
| 1512 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1513 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1514 | } |
| 1515 | |
| 1516 | /////////////////////////////////////////////////////////////////////////////// |
| 1517 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1518 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1519 | const SkLight* light, |
| 1520 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1521 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1522 | SkScalar ks, |
| 1523 | SkScalar shininess) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1524 | : INHERITED(texture, light, surfaceScale, matrix), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1525 | fKS(ks), |
| 1526 | fShininess(shininess) { |
| 1527 | } |
| 1528 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1529 | const GrBackendFragmentProcessorFactory& GrSpecularLightingEffect::getFactory() const { |
| 1530 | return GrTBackendFragmentProcessorFactory<GrSpecularLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1531 | } |
| 1532 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1533 | bool GrSpecularLightingEffect::onIsEqual(const GrProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1534 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1535 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1536 | this->ks() == s.ks() && |
| 1537 | this->shininess() == s.shininess(); |
| 1538 | } |
| 1539 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1540 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1541 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1542 | GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
| 1543 | GrContext* context, |
| 1544 | const GrDrawTargetCaps&, |
| 1545 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1546 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1547 | SkScalar ks = random->nextUScalar1(); |
| 1548 | SkScalar shininess = random->nextUScalar1(); |
| 1549 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1550 | SkMatrix matrix; |
| 1551 | for (int i = 0; i < 9; i++) { |
| 1552 | matrix[i] = random->nextUScalar1(); |
| 1553 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1554 | return GrSpecularLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1555 | light, surfaceScale, matrix, ks, shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1556 | } |
| 1557 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1558 | /////////////////////////////////////////////////////////////////////////////// |
| 1559 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1560 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrBackendProcessorFactory& factory, |
| 1561 | const GrProcessor& proc) |
| 1562 | : INHERITED(factory, proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1563 | } |
| 1564 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1565 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLProgramBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1566 | const char* ks; |
| 1567 | const char* shininess; |
| 1568 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1569 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1570 | kFloat_GrSLType, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1571 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1572 | kFloat_GrSLType, "Shininess", &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1573 | |
| 1574 | static const GrGLShaderVar gLightArgs[] = { |
| 1575 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1576 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1577 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1578 | }; |
| 1579 | SkString lightBody; |
| 1580 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1581 | 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] | 1582 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1583 | lightBody.appendf("\treturn vec4(color, max(max(color.r, color.g), color.b));\n"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1584 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1585 | "light", |
| 1586 | SK_ARRAY_COUNT(gLightArgs), |
| 1587 | gLightArgs, |
| 1588 | lightBody.c_str(), |
| 1589 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1590 | } |
| 1591 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1592 | void GrGLSpecularLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1593 | const GrProcessor& effect) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1594 | INHERITED::setData(pdman, effect); |
| 1595 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1596 | pdman.set1f(fKSUni, spec.ks()); |
| 1597 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1598 | } |
| 1599 | |
| 1600 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1601 | void GrGLLight::emitLightColorUniform(GrGLProgramBuilder* builder) { |
| 1602 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1603 | kVec3f_GrSLType, "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1604 | } |
| 1605 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1606 | void GrGLLight::emitLightColor(GrGLProgramBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1607 | const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1608 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1609 | } |
| 1610 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1611 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1612 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1613 | setUniformPoint3(pdman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1614 | } |
| 1615 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1616 | /////////////////////////////////////////////////////////////////////////////// |
| 1617 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1618 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1619 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1620 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1621 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1622 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1623 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1624 | } |
| 1625 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1626 | void GrGLDistantLight::emitSurfaceToLight(GrGLProgramBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1627 | const char* dir; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1628 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1629 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1630 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1631 | } |
| 1632 | |
| 1633 | /////////////////////////////////////////////////////////////////////////////// |
| 1634 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1635 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1636 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1637 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1638 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1639 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1640 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1641 | } |
| 1642 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1643 | void GrGLPointLight::emitSurfaceToLight(GrGLProgramBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1644 | const char* loc; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1645 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1646 | "LightLocation", &loc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1647 | GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| 1648 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1649 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1650 | } |
| 1651 | |
| 1652 | /////////////////////////////////////////////////////////////////////////////// |
| 1653 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1654 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1655 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1656 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1657 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1658 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1659 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1660 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1661 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1662 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1663 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1664 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1665 | } |
| 1666 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1667 | void GrGLSpotLight::emitSurfaceToLight(GrGLProgramBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1668 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1669 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1670 | kVec3f_GrSLType, "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1671 | |
| 1672 | GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| 1673 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1674 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1675 | } |
| 1676 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1677 | void GrGLSpotLight::emitLightColor(GrGLProgramBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1678 | const char *surfaceToLight) { |
| 1679 | |
| 1680 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1681 | |
| 1682 | const char* exponent; |
| 1683 | const char* cosInner; |
| 1684 | const char* cosOuter; |
| 1685 | const char* coneScale; |
| 1686 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1687 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1688 | kFloat_GrSLType, "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1689 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1690 | kFloat_GrSLType, "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1691 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1692 | kFloat_GrSLType, "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1693 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1694 | kFloat_GrSLType, "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1695 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1696 | kVec3f_GrSLType, "S", &s); |
| 1697 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1698 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1699 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1700 | }; |
| 1701 | SkString lightColorBody; |
| 1702 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1703 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1704 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1705 | lightColorBody.appendf("\t}\n"); |
| 1706 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1707 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1708 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1709 | color, cosOuter, coneScale); |
| 1710 | lightColorBody.appendf("\t}\n"); |
| 1711 | lightColorBody.appendf("\treturn %s;\n", color); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1712 | GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| 1713 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1714 | "lightColor", |
| 1715 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1716 | gLightColorArgs, |
| 1717 | lightColorBody.c_str(), |
| 1718 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1719 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1720 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1721 | } |
| 1722 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1723 | #endif |
| 1724 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1725 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 1726 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 1727 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1728 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |