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: |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame^] | 354 | virtual bool onIsEqual(const GrFragmentProcessor&) 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. |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 358 | inout->mulByUnknownColor(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 359 | } |
| 360 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 361 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 362 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 363 | const SkLight* fLight; |
| 364 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 365 | SkMatrix fFilterMatrix; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 366 | }; |
| 367 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 368 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 369 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 370 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 371 | const SkLight* light, |
| 372 | SkScalar surfaceScale, |
| 373 | const SkMatrix& matrix, |
| 374 | SkScalar kd) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 375 | return SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 376 | light, |
| 377 | surfaceScale, |
| 378 | matrix, |
| 379 | kd)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 380 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 381 | |
| 382 | static const char* Name() { return "DiffuseLighting"; } |
| 383 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 384 | typedef GrGLDiffuseLightingEffect GLProcessor; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 385 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 386 | virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 387 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 388 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 389 | private: |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame^] | 390 | virtual bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 391 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 392 | GrDiffuseLightingEffect(GrTexture* texture, |
| 393 | const SkLight* light, |
| 394 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 395 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 396 | SkScalar kd); |
| 397 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 398 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 399 | typedef GrLightingEffect INHERITED; |
| 400 | SkScalar fKD; |
| 401 | }; |
| 402 | |
| 403 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 404 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 405 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 406 | const SkLight* light, |
| 407 | SkScalar surfaceScale, |
| 408 | const SkMatrix& matrix, |
| 409 | SkScalar ks, |
| 410 | SkScalar shininess) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 411 | return SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 412 | light, |
| 413 | surfaceScale, |
| 414 | matrix, |
| 415 | ks, |
| 416 | shininess)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 417 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 418 | static const char* Name() { return "SpecularLighting"; } |
| 419 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 420 | typedef GrGLSpecularLightingEffect GLProcessor; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 421 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 422 | virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 423 | SkScalar ks() const { return fKS; } |
| 424 | SkScalar shininess() const { return fShininess; } |
| 425 | |
| 426 | private: |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame^] | 427 | virtual bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 428 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 429 | GrSpecularLightingEffect(GrTexture* texture, |
| 430 | const SkLight* light, |
| 431 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 432 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 433 | SkScalar ks, |
| 434 | SkScalar shininess); |
| 435 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 436 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 437 | typedef GrLightingEffect INHERITED; |
| 438 | SkScalar fKS; |
| 439 | SkScalar fShininess; |
| 440 | }; |
| 441 | |
| 442 | /////////////////////////////////////////////////////////////////////////////// |
| 443 | |
| 444 | class GrGLLight { |
| 445 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 446 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 447 | |
| 448 | /** |
| 449 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 450 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 451 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 452 | void emitLightColorUniform(GrGLFPBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 453 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 454 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 455 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 456 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 457 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 458 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 459 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 460 | * and so this function only needs to be overridden if the light color varies spatially. |
| 461 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 462 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) = 0; |
| 463 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 464 | |
| 465 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 466 | // INHERITED::setData(). |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 467 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 468 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 469 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 470 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 471 | /** |
| 472 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 473 | * function. |
| 474 | */ |
| 475 | UniformHandle lightColorUni() const { return fColorUni; } |
| 476 | |
| 477 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 478 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 479 | |
| 480 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 481 | }; |
| 482 | |
| 483 | /////////////////////////////////////////////////////////////////////////////// |
| 484 | |
| 485 | class GrGLDistantLight : public GrGLLight { |
| 486 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 487 | virtual ~GrGLDistantLight() {} |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 488 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 489 | const SkLight* light) const SK_OVERRIDE; |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 490 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 491 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 492 | private: |
| 493 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 494 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 495 | }; |
| 496 | |
| 497 | /////////////////////////////////////////////////////////////////////////////// |
| 498 | |
| 499 | class GrGLPointLight : public GrGLLight { |
| 500 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 501 | virtual ~GrGLPointLight() {} |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 502 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 503 | const SkLight* light) const SK_OVERRIDE; |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 504 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 505 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 506 | private: |
| 507 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 508 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 509 | }; |
| 510 | |
| 511 | /////////////////////////////////////////////////////////////////////////////// |
| 512 | |
| 513 | class GrGLSpotLight : public GrGLLight { |
| 514 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 515 | virtual ~GrGLSpotLight() {} |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 516 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 517 | const SkLight* light) const SK_OVERRIDE; |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 518 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) SK_OVERRIDE; |
| 519 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 520 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 521 | private: |
| 522 | typedef GrGLLight INHERITED; |
| 523 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 524 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 525 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 526 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 527 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 528 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 529 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 530 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 531 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 532 | #else |
| 533 | |
| 534 | class GrGLLight; |
| 535 | |
| 536 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 537 | |
| 538 | }; |
| 539 | |
| 540 | /////////////////////////////////////////////////////////////////////////////// |
| 541 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 542 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 543 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 544 | SK_DECLARE_INST_COUNT(SkLight) |
| 545 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 546 | enum LightType { |
| 547 | kDistant_LightType, |
| 548 | kPoint_LightType, |
| 549 | kSpot_LightType, |
| 550 | }; |
| 551 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 552 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 553 | virtual GrGLLight* createGLLight() const = 0; |
| 554 | virtual bool isEqual(const SkLight& other) const { |
| 555 | return fColor == other.fColor; |
| 556 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 557 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 558 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 559 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 560 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 561 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 562 | void flattenLight(SkWriteBuffer& buffer) const; |
| 563 | static SkLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 564 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 565 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 566 | SkLight(SkColor color) |
| 567 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 568 | SkIntToScalar(SkColorGetG(color)), |
| 569 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 570 | SkLight(const SkPoint3& color) |
| 571 | : fColor(color) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 572 | SkLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 573 | fColor = readPoint3(buffer); |
| 574 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 575 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 576 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 577 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 578 | |
| 579 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 580 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 581 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 582 | }; |
| 583 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 584 | /////////////////////////////////////////////////////////////////////////////// |
| 585 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 586 | class SkDistantLight : public SkLight { |
| 587 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 588 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 589 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 590 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 591 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 592 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 593 | return fDirection; |
| 594 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 595 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 596 | virtual LightType type() const { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 597 | const SkPoint3& direction() const { return fDirection; } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 598 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
| 599 | #if SK_SUPPORT_GPU |
| 600 | return SkNEW(GrGLDistantLight); |
| 601 | #else |
| 602 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 603 | return NULL; |
| 604 | #endif |
| 605 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 606 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return false; } |
| 607 | |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 608 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
| 609 | if (other.type() != kDistant_LightType) { |
| 610 | return false; |
| 611 | } |
| 612 | |
| 613 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 614 | return INHERITED::isEqual(other) && |
| 615 | fDirection == o.fDirection; |
| 616 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 617 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 618 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 619 | fDirection = readPoint3(buffer); |
| 620 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 621 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 622 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 623 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 624 | : INHERITED(color), fDirection(direction) { |
| 625 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 626 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 627 | return new SkDistantLight(direction(), color()); |
| 628 | } |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 629 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 630 | writePoint3(fDirection, buffer); |
| 631 | } |
| 632 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 633 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 634 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 635 | SkPoint3 fDirection; |
| 636 | }; |
| 637 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 638 | /////////////////////////////////////////////////////////////////////////////// |
| 639 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 640 | class SkPointLight : public SkLight { |
| 641 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 642 | SkPointLight(const SkPoint3& location, SkColor color) |
| 643 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 644 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 645 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 646 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 647 | fLocation.fY - SkIntToScalar(y), |
| 648 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 649 | direction.normalize(); |
| 650 | return direction; |
| 651 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 652 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 653 | virtual LightType type() const { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 654 | const SkPoint3& location() const { return fLocation; } |
| 655 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 656 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 657 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 658 | #else |
| 659 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 660 | return NULL; |
| 661 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 662 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 663 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 664 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 665 | if (other.type() != kPoint_LightType) { |
| 666 | return false; |
| 667 | } |
| 668 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 669 | return INHERITED::isEqual(other) && |
| 670 | fLocation == o.fLocation; |
| 671 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 672 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 673 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 674 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 675 | // Use X scale and Y scale on Z and average the result |
| 676 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 677 | matrix.mapVectors(&locationZ, 1); |
| 678 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 679 | return new SkPointLight(location, color()); |
| 680 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 681 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 682 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 683 | fLocation = readPoint3(buffer); |
| 684 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 685 | |
| 686 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 687 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 688 | : INHERITED(color), fLocation(location) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 689 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 690 | writePoint3(fLocation, buffer); |
| 691 | } |
| 692 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 693 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 694 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 695 | SkPoint3 fLocation; |
| 696 | }; |
| 697 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 698 | /////////////////////////////////////////////////////////////////////////////// |
| 699 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 700 | class SkSpotLight : public SkLight { |
| 701 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 702 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle, SkColor color) |
| 703 | : INHERITED(color), |
| 704 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 705 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 706 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 707 | { |
| 708 | fS = target - location; |
| 709 | fS.normalize(); |
| 710 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 711 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 712 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 713 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 714 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 715 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 716 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 717 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 718 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 719 | // Use X scale and Y scale on Z and average the result |
| 720 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 721 | matrix.mapVectors(&locationZ, 1); |
| 722 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 723 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 724 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 725 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 726 | matrix.mapVectors(&targetZ, 1); |
| 727 | SkPoint3 target(target2.fX, target2.fY, SkScalarAve(targetZ.fX, targetZ.fY)); |
| 728 | SkPoint3 s = target - location; |
| 729 | s.normalize(); |
| 730 | return new SkSpotLight(location, target, fSpecularExponent, fCosOuterConeAngle, fCosInnerConeAngle, fConeScale, s, color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 731 | } |
| 732 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 733 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 734 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 735 | fLocation.fY - SkIntToScalar(y), |
| 736 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 737 | direction.normalize(); |
| 738 | return direction; |
| 739 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 740 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 741 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 742 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 743 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 744 | } |
| 745 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 746 | if (cosAngle < fCosInnerConeAngle) { |
| 747 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 748 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 749 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 750 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 751 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 752 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 753 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 754 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 755 | #else |
| 756 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 757 | return NULL; |
| 758 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 759 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 760 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 761 | virtual LightType type() const { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 762 | const SkPoint3& location() const { return fLocation; } |
| 763 | const SkPoint3& target() const { return fTarget; } |
| 764 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 765 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 766 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 767 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 768 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 769 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 770 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 771 | fLocation = readPoint3(buffer); |
| 772 | fTarget = readPoint3(buffer); |
| 773 | fSpecularExponent = buffer.readScalar(); |
| 774 | fCosOuterConeAngle = buffer.readScalar(); |
| 775 | fCosInnerConeAngle = buffer.readScalar(); |
| 776 | fConeScale = buffer.readScalar(); |
| 777 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 778 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 779 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 780 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 781 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 782 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 783 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 784 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cosOuterConeAngle, SkScalar cosInnerConeAngle, SkScalar coneScale, const SkPoint3& s, const SkPoint3& color) |
| 785 | : INHERITED(color), |
| 786 | fLocation(location), |
| 787 | fTarget(target), |
| 788 | fSpecularExponent(specularExponent), |
| 789 | fCosOuterConeAngle(cosOuterConeAngle), |
| 790 | fCosInnerConeAngle(cosInnerConeAngle), |
| 791 | fConeScale(coneScale), |
| 792 | fS(s) |
| 793 | { |
| 794 | } |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 795 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 796 | writePoint3(fLocation, buffer); |
| 797 | writePoint3(fTarget, buffer); |
| 798 | buffer.writeScalar(fSpecularExponent); |
| 799 | buffer.writeScalar(fCosOuterConeAngle); |
| 800 | buffer.writeScalar(fCosInnerConeAngle); |
| 801 | buffer.writeScalar(fConeScale); |
| 802 | writePoint3(fS, buffer); |
| 803 | } |
| 804 | |
senorblanco@chromium.org | bd9fad6 | 2012-07-11 16:25:37 +0000 | [diff] [blame] | 805 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 806 | if (other.type() != kSpot_LightType) { |
| 807 | return false; |
| 808 | } |
| 809 | |
| 810 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 811 | return INHERITED::isEqual(other) && |
| 812 | fLocation == o.fLocation && |
| 813 | fTarget == o.fTarget && |
| 814 | fSpecularExponent == o.fSpecularExponent && |
| 815 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 816 | } |
| 817 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 818 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 819 | static const SkScalar kSpecularExponentMin; |
| 820 | static const SkScalar kSpecularExponentMax; |
| 821 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 822 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 823 | SkPoint3 fLocation; |
| 824 | SkPoint3 fTarget; |
| 825 | SkScalar fSpecularExponent; |
| 826 | SkScalar fCosOuterConeAngle; |
| 827 | SkScalar fCosInnerConeAngle; |
| 828 | SkScalar fConeScale; |
| 829 | SkPoint3 fS; |
| 830 | }; |
| 831 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 832 | // According to the spec, the specular term should be in the range [1, 128] : |
| 833 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 834 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 835 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 836 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 837 | /////////////////////////////////////////////////////////////////////////////// |
| 838 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 839 | void SkLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 840 | // Write type first, then baseclass, then subclass. |
| 841 | buffer.writeInt(this->type()); |
| 842 | writePoint3(fColor, buffer); |
| 843 | this->onFlattenLight(buffer); |
| 844 | } |
| 845 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 846 | /*static*/ SkLight* SkLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 847 | // Read type first. |
| 848 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 849 | switch (type) { |
| 850 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 851 | // then subclass, same order as flattenLight. |
| 852 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 853 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 854 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 855 | default: |
| 856 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 857 | buffer.validate(false); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 858 | return NULL; |
| 859 | } |
| 860 | } |
| 861 | /////////////////////////////////////////////////////////////////////////////// |
| 862 | |
senorblanco | 9ea3d57 | 2014-07-08 09:16:22 -0700 | [diff] [blame] | 863 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 864 | SkImageFilter* input, const CropRect* cropRect, |
| 865 | uint32_t uniqueID) |
| 866 | : INHERITED(1, &input, cropRect, uniqueID) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 867 | , fLight(SkRef(light)) |
| 868 | , fSurfaceScale(surfaceScale / 255) |
| 869 | {} |
| 870 | |
| 871 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 872 | SkColor lightColor, |
| 873 | SkScalar surfaceScale, |
| 874 | SkScalar kd, |
| 875 | SkImageFilter* input, |
| 876 | const CropRect* cropRect) { |
| 877 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 878 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 879 | } |
| 880 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 881 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 882 | SkColor lightColor, |
| 883 | SkScalar surfaceScale, |
| 884 | SkScalar kd, |
| 885 | SkImageFilter* input, |
| 886 | const CropRect* cropRect) { |
| 887 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 888 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 889 | } |
| 890 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 891 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 892 | const SkPoint3& target, |
| 893 | SkScalar specularExponent, |
| 894 | SkScalar cutoffAngle, |
| 895 | SkColor lightColor, |
| 896 | SkScalar surfaceScale, |
| 897 | SkScalar kd, |
| 898 | SkImageFilter* input, |
| 899 | const CropRect* cropRect) { |
| 900 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 901 | cutoffAngle, lightColor))); |
| 902 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 903 | } |
| 904 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 905 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 906 | SkColor lightColor, |
| 907 | SkScalar surfaceScale, |
| 908 | SkScalar ks, |
| 909 | SkScalar shine, |
| 910 | SkImageFilter* input, |
| 911 | const CropRect* cropRect) { |
| 912 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 913 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 914 | } |
| 915 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 916 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 917 | SkColor lightColor, |
| 918 | SkScalar surfaceScale, |
| 919 | SkScalar ks, |
| 920 | SkScalar shine, |
| 921 | SkImageFilter* input, |
| 922 | const CropRect* cropRect) { |
| 923 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 924 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 925 | } |
| 926 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 927 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 928 | const SkPoint3& target, |
| 929 | SkScalar specularExponent, |
| 930 | SkScalar cutoffAngle, |
| 931 | SkColor lightColor, |
| 932 | SkScalar surfaceScale, |
| 933 | SkScalar ks, |
| 934 | SkScalar shine, |
| 935 | SkImageFilter* input, |
| 936 | const CropRect* cropRect) { |
| 937 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 938 | cutoffAngle, lightColor))); |
| 939 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 940 | } |
| 941 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 942 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 943 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 944 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 945 | SkLightingImageFilter::SkLightingImageFilter(SkReadBuffer& buffer) |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 946 | : INHERITED(1, buffer) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 947 | fLight.reset(SkLight::UnflattenLight(buffer)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 948 | fSurfaceScale = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 949 | buffer.validate(SkScalarIsFinite(fSurfaceScale)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 950 | } |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 951 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 952 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 953 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 954 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 955 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 956 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 957 | } |
| 958 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 959 | /////////////////////////////////////////////////////////////////////////////// |
| 960 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 961 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 962 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 963 | if (NULL == light) { |
| 964 | return NULL; |
| 965 | } |
| 966 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
| 967 | return NULL; |
| 968 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 969 | // According to the spec, kd can be any non-negative number : |
| 970 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 971 | if (kd < 0) { |
| 972 | return NULL; |
| 973 | } |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 974 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, (light, surfaceScale, kd, input, cropRect, uniqueID)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 975 | } |
| 976 | |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 977 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) |
| 978 | : SkLightingImageFilter(light, surfaceScale, input, cropRect, uniqueID), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 979 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 980 | { |
| 981 | } |
| 982 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 983 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 984 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkReadBuffer& buffer) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 985 | : INHERITED(buffer) |
| 986 | { |
| 987 | fKD = buffer.readScalar(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 988 | buffer.validate(SkScalarIsFinite(fKD) && (fKD >= 0)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 989 | } |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 990 | #endif |
| 991 | |
| 992 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 993 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 994 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 995 | SkScalar surfaceScale = buffer.readScalar(); |
| 996 | SkScalar kd = buffer.readScalar(); |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 997 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect(), common.uniqueID()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 998 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 999 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1000 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1001 | this->INHERITED::flatten(buffer); |
| 1002 | buffer.writeScalar(fKD); |
| 1003 | } |
| 1004 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1005 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1006 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1007 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1008 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1009 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1010 | SkImageFilter* input = getInput(0); |
| 1011 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1012 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1013 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1014 | return false; |
| 1015 | } |
| 1016 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1017 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1018 | return false; |
| 1019 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1020 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1021 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1022 | return false; |
| 1023 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1024 | |
| 1025 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1026 | return false; |
| 1027 | } |
| 1028 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1029 | SkAutoLockPixels alp(src); |
| 1030 | if (!src.getPixels()) { |
| 1031 | return false; |
| 1032 | } |
| 1033 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1034 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1035 | return false; |
| 1036 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1037 | |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1038 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1039 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1040 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1041 | offset->fX = bounds.left(); |
| 1042 | offset->fY = bounds.top(); |
| 1043 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1044 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1045 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1046 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1047 | break; |
| 1048 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1049 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1050 | break; |
| 1051 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1052 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1053 | break; |
| 1054 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1055 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1056 | return true; |
| 1057 | } |
| 1058 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1059 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1060 | bool SkDiffuseLightingImageFilter::asFragmentProcessor(GrFragmentProcessor** fp, |
| 1061 | GrTexture* texture, |
| 1062 | const SkMatrix& matrix, |
| 1063 | const SkIRect&) const { |
| 1064 | if (fp) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1065 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1066 | *fp = GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1067 | } |
| 1068 | return true; |
| 1069 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1070 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1071 | |
| 1072 | /////////////////////////////////////////////////////////////////////////////// |
| 1073 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1074 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1075 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1076 | if (NULL == light) { |
| 1077 | return NULL; |
| 1078 | } |
| 1079 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
| 1080 | return NULL; |
| 1081 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1082 | // According to the spec, ks can be any non-negative number : |
| 1083 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1084 | if (ks < 0) { |
| 1085 | return NULL; |
| 1086 | } |
| 1087 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1088 | (light, surfaceScale, ks, shininess, input, cropRect, uniqueID)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1089 | } |
| 1090 | |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1091 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) |
| 1092 | : SkLightingImageFilter(light, surfaceScale, input, cropRect, uniqueID), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1093 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1094 | fShininess(shininess) |
| 1095 | { |
| 1096 | } |
| 1097 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1098 | #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1099 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkReadBuffer& buffer) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1100 | : INHERITED(buffer) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1101 | { |
| 1102 | fKS = buffer.readScalar(); |
| 1103 | fShininess = buffer.readScalar(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1104 | buffer.validate(SkScalarIsFinite(fKS) && (fKS >= 0) && |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 1105 | SkScalarIsFinite(fShininess)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1106 | } |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1107 | #endif |
| 1108 | |
| 1109 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1110 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1111 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1112 | SkScalar surfaceScale = buffer.readScalar(); |
| 1113 | SkScalar ks = buffer.readScalar(); |
| 1114 | SkScalar shine = buffer.readScalar(); |
senorblanco | 5e5f948 | 2014-08-26 12:27:12 -0700 | [diff] [blame] | 1115 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect(), common.uniqueID()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1116 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1117 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1118 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1119 | this->INHERITED::flatten(buffer); |
| 1120 | buffer.writeScalar(fKS); |
| 1121 | buffer.writeScalar(fShininess); |
| 1122 | } |
| 1123 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1124 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1125 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1126 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1127 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1128 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1129 | SkImageFilter* input = getInput(0); |
| 1130 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1131 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1132 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1133 | return false; |
| 1134 | } |
| 1135 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1136 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1137 | return false; |
| 1138 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1139 | |
| 1140 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1141 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1142 | return false; |
| 1143 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1144 | |
| 1145 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1146 | return false; |
| 1147 | } |
| 1148 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1149 | SkAutoLockPixels alp(src); |
| 1150 | if (!src.getPixels()) { |
| 1151 | return false; |
| 1152 | } |
| 1153 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1154 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1155 | return false; |
| 1156 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1157 | |
| 1158 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1159 | offset->fX = bounds.left(); |
| 1160 | offset->fY = bounds.top(); |
| 1161 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1162 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1163 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1164 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1165 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1166 | break; |
| 1167 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1168 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1169 | break; |
| 1170 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1171 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1172 | break; |
| 1173 | } |
| 1174 | return true; |
| 1175 | } |
| 1176 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1177 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1178 | bool SkSpecularLightingImageFilter::asFragmentProcessor(GrFragmentProcessor** fp, |
| 1179 | GrTexture* texture, |
| 1180 | const SkMatrix& matrix, |
| 1181 | const SkIRect&) const { |
| 1182 | if (fp) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1183 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1184 | *fp = GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1185 | } |
| 1186 | return true; |
| 1187 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1188 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1189 | |
| 1190 | /////////////////////////////////////////////////////////////////////////////// |
| 1191 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1192 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1193 | |
| 1194 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1195 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1196 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1197 | SkScalarToFloat(random->nextSScalar1()), |
| 1198 | SkScalarToFloat(random->nextSScalar1())); |
| 1199 | } |
| 1200 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1201 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1202 | int type = random->nextULessThan(3); |
| 1203 | switch (type) { |
| 1204 | case 0: { |
| 1205 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1206 | } |
| 1207 | case 1: { |
| 1208 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1209 | } |
| 1210 | case 2: { |
| 1211 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1212 | random_point3(random), |
| 1213 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1214 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1215 | random->nextU())); |
| 1216 | } |
| 1217 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1218 | SkFAIL("Unexpected value."); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1219 | return NULL; |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | } |
| 1224 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1225 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1226 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1227 | GrGLLightingEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1228 | virtual ~GrGLLightingEffect(); |
| 1229 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1230 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1231 | const GrFragmentProcessor&, |
| 1232 | const GrProcessorKey&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1233 | const char* outputColor, |
| 1234 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1235 | const TransformedCoordsArray&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1236 | const TextureSamplerArray&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1237 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1238 | static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1239 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1240 | /** |
| 1241 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1242 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1243 | virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1244 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1245 | protected: |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1246 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1247 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1248 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1249 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1250 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1251 | UniformHandle fImageIncrementUni; |
| 1252 | UniformHandle fSurfaceScaleUni; |
| 1253 | GrGLLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1254 | }; |
| 1255 | |
| 1256 | /////////////////////////////////////////////////////////////////////////////// |
| 1257 | |
| 1258 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1259 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1260 | GrGLDiffuseLightingEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1261 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) SK_OVERRIDE; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1262 | virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1263 | |
| 1264 | private: |
| 1265 | typedef GrGLLightingEffect INHERITED; |
| 1266 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1267 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1268 | }; |
| 1269 | |
| 1270 | /////////////////////////////////////////////////////////////////////////////// |
| 1271 | |
| 1272 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1273 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1274 | GrGLSpecularLightingEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1275 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) SK_OVERRIDE; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1276 | virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1277 | |
| 1278 | private: |
| 1279 | typedef GrGLLightingEffect INHERITED; |
| 1280 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1281 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1282 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1283 | }; |
| 1284 | |
| 1285 | /////////////////////////////////////////////////////////////////////////////// |
| 1286 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1287 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1288 | const SkLight* light, |
| 1289 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1290 | const SkMatrix& matrix) |
bsalomon | 6267f81 | 2014-08-29 15:05:53 -0700 | [diff] [blame] | 1291 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1292 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1293 | , fSurfaceScale(surfaceScale) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1294 | , fFilterMatrix(matrix) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1295 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1296 | if (light->requiresFragmentPosition()) { |
| 1297 | this->setWillReadFragmentPosition(); |
| 1298 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1299 | } |
| 1300 | |
| 1301 | GrLightingEffect::~GrLightingEffect() { |
| 1302 | fLight->unref(); |
| 1303 | } |
| 1304 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame^] | 1305 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1306 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1307 | return this->texture(0) == s.texture(0) && |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1308 | fLight->isEqual(*s.fLight) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1309 | fSurfaceScale == s.fSurfaceScale; |
| 1310 | } |
| 1311 | |
| 1312 | /////////////////////////////////////////////////////////////////////////////// |
| 1313 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1314 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1315 | const SkLight* light, |
| 1316 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1317 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1318 | SkScalar kd) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1319 | : INHERITED(texture, light, surfaceScale, matrix), fKD(kd) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1320 | } |
| 1321 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1322 | const GrBackendFragmentProcessorFactory& GrDiffuseLightingEffect::getFactory() const { |
| 1323 | return GrTBackendFragmentProcessorFactory<GrDiffuseLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1324 | } |
| 1325 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame^] | 1326 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1327 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1328 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1329 | this->kd() == s.kd(); |
| 1330 | } |
| 1331 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1332 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1333 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1334 | GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1335 | GrContext* context, |
| 1336 | const GrDrawTargetCaps&, |
| 1337 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1338 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1339 | SkScalar kd = random->nextUScalar1(); |
| 1340 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1341 | SkMatrix matrix; |
| 1342 | for (int i = 0; i < 9; i++) { |
| 1343 | matrix[i] = random->nextUScalar1(); |
| 1344 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1345 | return GrDiffuseLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1346 | light, surfaceScale, matrix, kd); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1347 | } |
| 1348 | |
| 1349 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1350 | /////////////////////////////////////////////////////////////////////////////// |
| 1351 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1352 | GrGLLightingEffect::GrGLLightingEffect(const GrBackendProcessorFactory& factory, |
| 1353 | const GrProcessor& fp) |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1354 | : INHERITED(factory) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1355 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1356 | fLight = m.light()->createGLLight(); |
| 1357 | } |
| 1358 | |
| 1359 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1360 | delete fLight; |
| 1361 | } |
| 1362 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1363 | void GrGLLightingEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1364 | const GrFragmentProcessor&, |
| 1365 | const GrProcessorKey& key, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1366 | const char* outputColor, |
| 1367 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1368 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1369 | const TextureSamplerArray& samplers) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1370 | fImageIncrementUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1371 | kVec2f_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1372 | "ImageIncrement"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1373 | fSurfaceScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1374 | kFloat_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1375 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1376 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1377 | SkString lightFunc; |
| 1378 | this->emitLightFunc(builder, &lightFunc); |
| 1379 | static const GrGLShaderVar gSobelArgs[] = { |
| 1380 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1381 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1382 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1383 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1384 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1385 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1386 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1387 | }; |
| 1388 | SkString sobelFuncName; |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1389 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1390 | SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0); |
| 1391 | |
| 1392 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1393 | "sobel", |
| 1394 | SK_ARRAY_COUNT(gSobelArgs), |
| 1395 | gSobelArgs, |
| 1396 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1397 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1398 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1399 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1400 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1401 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1402 | }; |
| 1403 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1404 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1405 | "pointToNormal", |
| 1406 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1407 | gPointToNormalArgs, |
| 1408 | "\treturn normalize(vec3(-x * scale, y * scale, 1));\n", |
| 1409 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1410 | |
| 1411 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1412 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1413 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1414 | }; |
| 1415 | SkString interiorNormalBody; |
| 1416 | interiorNormalBody.appendf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], 0.25),\n" |
| 1417 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], 0.25),\n" |
| 1418 | "\t surfaceScale);\n", |
| 1419 | pointToNormalName.c_str(), |
| 1420 | sobelFuncName.c_str(), |
| 1421 | sobelFuncName.c_str()); |
| 1422 | SkString interiorNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1423 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1424 | "interiorNormal", |
| 1425 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1426 | gInteriorNormalArgs, |
| 1427 | interiorNormalBody.c_str(), |
| 1428 | &interiorNormalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1429 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1430 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1431 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1432 | |
| 1433 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1434 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1435 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1436 | int index = 0; |
| 1437 | for (int dy = -1; dy <= 1; dy++) { |
| 1438 | for (int dx = -1; dx <= 1; dx++) { |
| 1439 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1440 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1441 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
| 1442 | fsBuilder->appendTextureLookup(samplers[0], texCoords.c_str()); |
| 1443 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1444 | } |
| 1445 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1446 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1447 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1448 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1449 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1450 | fsBuilder->codeAppend(";\n"); |
| 1451 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1452 | outputColor, lightFunc.c_str(), interiorNormalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1453 | fLight->emitLightColor(builder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1454 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1455 | SkString modulate; |
egdaniel | 089f8de | 2014-10-09 10:34:58 -0700 | [diff] [blame] | 1456 | GrGLSLMulVarBy4f(&modulate, outputColor, inputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1457 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1458 | } |
| 1459 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1460 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
| 1461 | const GrGLCaps& caps, GrProcessorKeyBuilder* b) { |
| 1462 | b->add32(proc.cast<GrLightingEffect>().light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1463 | } |
| 1464 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1465 | void GrGLLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1466 | const GrProcessor& proc) { |
| 1467 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1468 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1469 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1470 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1471 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1472 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1473 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1474 | } |
| 1475 | |
| 1476 | /////////////////////////////////////////////////////////////////////////////// |
| 1477 | |
| 1478 | /////////////////////////////////////////////////////////////////////////////// |
| 1479 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1480 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrBackendProcessorFactory& factory, |
| 1481 | const GrProcessor& proc) |
| 1482 | : INHERITED(factory, proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1483 | } |
| 1484 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1485 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1486 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1487 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1488 | kFloat_GrSLType, |
| 1489 | "KD", |
| 1490 | &kd); |
| 1491 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1492 | static const GrGLShaderVar gLightArgs[] = { |
| 1493 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1494 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1495 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1496 | }; |
| 1497 | SkString lightBody; |
| 1498 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1499 | 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] | 1500 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1501 | "light", |
| 1502 | SK_ARRAY_COUNT(gLightArgs), |
| 1503 | gLightArgs, |
| 1504 | lightBody.c_str(), |
| 1505 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1506 | } |
| 1507 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1508 | void GrGLDiffuseLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1509 | const GrProcessor& proc) { |
| 1510 | INHERITED::setData(pdman, proc); |
| 1511 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1512 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1513 | } |
| 1514 | |
| 1515 | /////////////////////////////////////////////////////////////////////////////// |
| 1516 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1517 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1518 | const SkLight* light, |
| 1519 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1520 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1521 | SkScalar ks, |
| 1522 | SkScalar shininess) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1523 | : INHERITED(texture, light, surfaceScale, matrix), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1524 | fKS(ks), |
| 1525 | fShininess(shininess) { |
| 1526 | } |
| 1527 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1528 | const GrBackendFragmentProcessorFactory& GrSpecularLightingEffect::getFactory() const { |
| 1529 | return GrTBackendFragmentProcessorFactory<GrSpecularLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1530 | } |
| 1531 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame^] | 1532 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1533 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1534 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1535 | this->ks() == s.ks() && |
| 1536 | this->shininess() == s.shininess(); |
| 1537 | } |
| 1538 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1539 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1540 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1541 | GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
| 1542 | GrContext* context, |
| 1543 | const GrDrawTargetCaps&, |
| 1544 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1545 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1546 | SkScalar ks = random->nextUScalar1(); |
| 1547 | SkScalar shininess = random->nextUScalar1(); |
| 1548 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1549 | SkMatrix matrix; |
| 1550 | for (int i = 0; i < 9; i++) { |
| 1551 | matrix[i] = random->nextUScalar1(); |
| 1552 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1553 | return GrSpecularLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1554 | light, surfaceScale, matrix, ks, shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1555 | } |
| 1556 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1557 | /////////////////////////////////////////////////////////////////////////////// |
| 1558 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1559 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrBackendProcessorFactory& factory, |
| 1560 | const GrProcessor& proc) |
| 1561 | : INHERITED(factory, proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1562 | } |
| 1563 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1564 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1565 | const char* ks; |
| 1566 | const char* shininess; |
| 1567 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1568 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1569 | kFloat_GrSLType, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1570 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1571 | kFloat_GrSLType, "Shininess", &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1572 | |
| 1573 | static const GrGLShaderVar gLightArgs[] = { |
| 1574 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1575 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1576 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1577 | }; |
| 1578 | SkString lightBody; |
| 1579 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1580 | 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] | 1581 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1582 | 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] | 1583 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1584 | "light", |
| 1585 | SK_ARRAY_COUNT(gLightArgs), |
| 1586 | gLightArgs, |
| 1587 | lightBody.c_str(), |
| 1588 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1589 | } |
| 1590 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1591 | void GrGLSpecularLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1592 | const GrProcessor& effect) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1593 | INHERITED::setData(pdman, effect); |
| 1594 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1595 | pdman.set1f(fKSUni, spec.ks()); |
| 1596 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1597 | } |
| 1598 | |
| 1599 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1600 | void GrGLLight::emitLightColorUniform(GrGLFPBuilder* builder) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1601 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1602 | kVec3f_GrSLType, "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1603 | } |
| 1604 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1605 | void GrGLLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1606 | const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1607 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1608 | } |
| 1609 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1610 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1611 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1612 | setUniformPoint3(pdman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1613 | } |
| 1614 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1615 | /////////////////////////////////////////////////////////////////////////////// |
| 1616 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1617 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1618 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1619 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1620 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1621 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1622 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1623 | } |
| 1624 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1625 | void GrGLDistantLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1626 | const char* dir; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1627 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1628 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1629 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1630 | } |
| 1631 | |
| 1632 | /////////////////////////////////////////////////////////////////////////////// |
| 1633 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1634 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1635 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1636 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1637 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1638 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1639 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1640 | } |
| 1641 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1642 | void GrGLPointLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1643 | const char* loc; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1644 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1645 | "LightLocation", &loc); |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1646 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1647 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1648 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1649 | } |
| 1650 | |
| 1651 | /////////////////////////////////////////////////////////////////////////////// |
| 1652 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1653 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1654 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1655 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1656 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1657 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1658 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1659 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1660 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1661 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1662 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1663 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1664 | } |
| 1665 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1666 | void GrGLSpotLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1667 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1668 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1669 | kVec3f_GrSLType, "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1670 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1671 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1672 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1673 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1674 | } |
| 1675 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1676 | void GrGLSpotLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1677 | const char *surfaceToLight) { |
| 1678 | |
| 1679 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1680 | |
| 1681 | const char* exponent; |
| 1682 | const char* cosInner; |
| 1683 | const char* cosOuter; |
| 1684 | const char* coneScale; |
| 1685 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1686 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1687 | kFloat_GrSLType, "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1688 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1689 | kFloat_GrSLType, "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1690 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1691 | kFloat_GrSLType, "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1692 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1693 | kFloat_GrSLType, "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1694 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1695 | kVec3f_GrSLType, "S", &s); |
| 1696 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1697 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1698 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1699 | }; |
| 1700 | SkString lightColorBody; |
| 1701 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1702 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1703 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1704 | lightColorBody.appendf("\t}\n"); |
| 1705 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1706 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1707 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1708 | color, cosOuter, coneScale); |
| 1709 | lightColorBody.appendf("\t}\n"); |
| 1710 | lightColorBody.appendf("\treturn %s;\n", color); |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1711 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1712 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1713 | "lightColor", |
| 1714 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1715 | gLightColorArgs, |
| 1716 | lightColorBody.c_str(), |
| 1717 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1718 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1719 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1720 | } |
| 1721 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1722 | #endif |
| 1723 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1724 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 1725 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 1726 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1727 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |