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" |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 11 | #include "SkFlattenableBuffers.h" |
| 12 | #include "SkOrderedReadBuffer.h" |
| 13 | #include "SkOrderedWriteBuffer.h" |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 14 | #include "SkTypes.h" |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 15 | |
| 16 | #if SK_SUPPORT_GPU |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 17 | #include "effects/GrSingleTextureEffect.h" |
bsalomon@google.com | d698f77 | 2012-10-25 13:22:00 +0000 | [diff] [blame] | 18 | #include "gl/GrGLEffect.h" |
bsalomon@google.com | a469c28 | 2012-10-24 18:28:34 +0000 | [diff] [blame] | 19 | #include "GrEffect.h" |
bsalomon@google.com | 2eaaefd | 2012-10-29 19:51:22 +0000 | [diff] [blame] | 20 | #include "GrTBackendEffectFactory.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 21 | |
| 22 | class GrGLDiffuseLightingEffect; |
| 23 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 24 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 25 | // For brevity |
| 26 | typedef GrGLUniformManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 27 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 28 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 29 | namespace { |
| 30 | |
| 31 | const SkScalar gOneThird = SkScalarInvert(SkIntToScalar(3)); |
| 32 | const SkScalar gTwoThirds = SkScalarDiv(SkIntToScalar(2), SkIntToScalar(3)); |
| 33 | const SkScalar gOneHalf = SkFloatToScalar(0.5f); |
| 34 | const SkScalar gOneQuarter = SkFloatToScalar(0.25f); |
| 35 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 36 | #if SK_SUPPORT_GPU |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 37 | void setUniformPoint3(const GrGLUniformManager& uman, UniformHandle uni, const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 38 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 39 | uman.set3fv(uni, 0, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 40 | } |
| 41 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 42 | void setUniformNormal3(const GrGLUniformManager& uman, UniformHandle uni, const SkPoint3& point) { |
bsalomon@google.com | 706f668 | 2012-10-23 14:53:55 +0000 | [diff] [blame] | 43 | setUniformPoint3(uman, uni, SkPoint3(point.fX, point.fY, point.fZ)); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 44 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 45 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 46 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 47 | // Shift matrix components to the left, as we advance pixels to the right. |
| 48 | inline void shiftMatrixLeft(int m[9]) { |
| 49 | m[0] = m[1]; |
| 50 | m[3] = m[4]; |
| 51 | m[6] = m[7]; |
| 52 | m[1] = m[2]; |
| 53 | m[4] = m[5]; |
| 54 | m[7] = m[8]; |
| 55 | } |
| 56 | |
| 57 | class DiffuseLightingType { |
| 58 | public: |
| 59 | DiffuseLightingType(SkScalar kd) |
| 60 | : fKD(kd) {} |
| 61 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, const SkPoint3& lightColor) const { |
| 62 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 63 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 64 | SkPoint3 color(lightColor * colorScale); |
| 65 | return SkPackARGB32(255, |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 66 | SkClampMax(SkScalarFloorToInt(color.fX), 255), |
| 67 | SkClampMax(SkScalarFloorToInt(color.fY), 255), |
| 68 | SkClampMax(SkScalarFloorToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 69 | } |
| 70 | private: |
| 71 | SkScalar fKD; |
| 72 | }; |
| 73 | |
| 74 | class SpecularLightingType { |
| 75 | public: |
| 76 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 77 | : fKS(ks), fShininess(shininess) {} |
| 78 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, const SkPoint3& lightColor) const { |
| 79 | SkPoint3 halfDir(surfaceTolight); |
| 80 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
| 81 | halfDir.normalize(); |
| 82 | SkScalar colorScale = SkScalarMul(fKS, |
| 83 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 84 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 85 | SkPoint3 color(lightColor * colorScale); |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 86 | return SkPackARGB32(SkClampMax(SkScalarFloorToInt(color.maxComponent()), 255), |
| 87 | SkClampMax(SkScalarFloorToInt(color.fX), 255), |
| 88 | SkClampMax(SkScalarFloorToInt(color.fY), 255), |
| 89 | SkClampMax(SkScalarFloorToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 90 | } |
| 91 | private: |
| 92 | SkScalar fKS; |
| 93 | SkScalar fShininess; |
| 94 | }; |
| 95 | |
| 96 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 97 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 98 | } |
| 99 | |
| 100 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
| 101 | SkPoint3 vector(SkScalarMul(-x, surfaceScale), |
| 102 | SkScalarMul(-y, surfaceScale), |
| 103 | SK_Scalar1); |
| 104 | vector.normalize(); |
| 105 | return vector; |
| 106 | } |
| 107 | |
| 108 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 109 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 110 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 111 | surfaceScale); |
| 112 | } |
| 113 | |
| 114 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 115 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 116 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 117 | surfaceScale); |
| 118 | } |
| 119 | |
| 120 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 121 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 122 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 123 | surfaceScale); |
| 124 | } |
| 125 | |
| 126 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 127 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 128 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 129 | surfaceScale); |
| 130 | } |
| 131 | |
| 132 | |
| 133 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 134 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 135 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 136 | surfaceScale); |
| 137 | } |
| 138 | |
| 139 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 140 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 141 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 142 | surfaceScale); |
| 143 | } |
| 144 | |
| 145 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 146 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 147 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 148 | surfaceScale); |
| 149 | } |
| 150 | |
| 151 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 152 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 153 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 154 | surfaceScale); |
| 155 | } |
| 156 | |
| 157 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 158 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 159 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 160 | surfaceScale); |
| 161 | } |
| 162 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 163 | template <class LightingType, class LightType> void lightBitmap(const LightingType& lightingType, const SkLight* light, const SkBitmap& src, SkBitmap* dst, SkScalar surfaceScale, const SkIRect& bounds) { |
| 164 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 165 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 166 | int left = bounds.left(), right = bounds.right(); |
| 167 | int bottom = bounds.bottom(); |
| 168 | int y = bounds.top(); |
| 169 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 170 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 171 | int x = left; |
| 172 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 173 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 174 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 175 | m[4] = SkGetPackedA32(*row1++); |
| 176 | m[5] = SkGetPackedA32(*row1++); |
| 177 | m[7] = SkGetPackedA32(*row2++); |
| 178 | m[8] = SkGetPackedA32(*row2++); |
| 179 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 180 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 181 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 182 | { |
| 183 | shiftMatrixLeft(m); |
| 184 | m[5] = SkGetPackedA32(*row1++); |
| 185 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 186 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 187 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 188 | } |
| 189 | shiftMatrixLeft(m); |
| 190 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 191 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 192 | } |
| 193 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 194 | for (++y; y < bottom - 1; ++y) { |
| 195 | int x = left; |
| 196 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 197 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 198 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 199 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 200 | m[1] = SkGetPackedA32(*row0++); |
| 201 | m[2] = SkGetPackedA32(*row0++); |
| 202 | m[4] = SkGetPackedA32(*row1++); |
| 203 | m[5] = SkGetPackedA32(*row1++); |
| 204 | m[7] = SkGetPackedA32(*row2++); |
| 205 | m[8] = SkGetPackedA32(*row2++); |
| 206 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 207 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 208 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 209 | shiftMatrixLeft(m); |
| 210 | m[2] = SkGetPackedA32(*row0++); |
| 211 | m[5] = SkGetPackedA32(*row1++); |
| 212 | m[8] = SkGetPackedA32(*row2++); |
| 213 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 214 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 215 | } |
| 216 | shiftMatrixLeft(m); |
| 217 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 218 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 222 | int x = left; |
| 223 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 224 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 225 | int m[9]; |
| 226 | m[1] = SkGetPackedA32(*row0++); |
| 227 | m[2] = SkGetPackedA32(*row0++); |
| 228 | m[4] = SkGetPackedA32(*row1++); |
| 229 | m[5] = SkGetPackedA32(*row1++); |
| 230 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 231 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 232 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 233 | { |
| 234 | shiftMatrixLeft(m); |
| 235 | m[2] = SkGetPackedA32(*row0++); |
| 236 | m[5] = SkGetPackedA32(*row1++); |
| 237 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 238 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 239 | } |
| 240 | shiftMatrixLeft(m); |
| 241 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 242 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 243 | } |
| 244 | } |
| 245 | |
| 246 | SkPoint3 readPoint3(SkFlattenableReadBuffer& buffer) { |
| 247 | SkPoint3 point; |
| 248 | point.fX = buffer.readScalar(); |
| 249 | point.fY = buffer.readScalar(); |
| 250 | point.fZ = buffer.readScalar(); |
| 251 | return point; |
| 252 | }; |
| 253 | |
| 254 | void writePoint3(const SkPoint3& point, SkFlattenableWriteBuffer& buffer) { |
| 255 | buffer.writeScalar(point.fX); |
| 256 | buffer.writeScalar(point.fY); |
| 257 | buffer.writeScalar(point.fZ); |
| 258 | }; |
| 259 | |
| 260 | class SkDiffuseLightingImageFilter : public SkLightingImageFilter { |
| 261 | public: |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 262 | SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 263 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 264 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
| 265 | |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 266 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 267 | virtual bool asNewEffect(GrEffectRef** effect, GrTexture*, const SkMatrix& matrix) const SK_OVERRIDE; |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 268 | #endif |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 269 | SkScalar kd() const { return fKD; } |
| 270 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 271 | protected: |
| 272 | explicit SkDiffuseLightingImageFilter(SkFlattenableReadBuffer& buffer); |
| 273 | virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE; |
| 274 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, |
| 275 | SkBitmap* result, SkIPoint* offset) SK_OVERRIDE; |
| 276 | |
| 277 | |
| 278 | private: |
| 279 | typedef SkLightingImageFilter INHERITED; |
| 280 | SkScalar fKD; |
| 281 | }; |
| 282 | |
| 283 | class SkSpecularLightingImageFilter : public SkLightingImageFilter { |
| 284 | public: |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 285 | SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 286 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 287 | |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 288 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 289 | virtual bool asNewEffect(GrEffectRef** effect, GrTexture*, const SkMatrix& matrix) const SK_OVERRIDE; |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 290 | #endif |
| 291 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 292 | SkScalar ks() const { return fKS; } |
| 293 | SkScalar shininess() const { return fShininess; } |
| 294 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 295 | protected: |
| 296 | explicit SkSpecularLightingImageFilter(SkFlattenableReadBuffer& buffer); |
| 297 | virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE; |
| 298 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, |
| 299 | SkBitmap* result, SkIPoint* offset) SK_OVERRIDE; |
| 300 | |
| 301 | private: |
| 302 | typedef SkLightingImageFilter INHERITED; |
| 303 | SkScalar fKS; |
| 304 | SkScalar fShininess; |
| 305 | }; |
| 306 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 307 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 308 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 309 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 310 | public: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 311 | GrLightingEffect(GrTexture* texture, const SkLight* light, SkScalar surfaceScale, const SkMatrix& matrix); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 312 | virtual ~GrLightingEffect(); |
| 313 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 314 | const SkLight* light() const { return fLight; } |
| 315 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 316 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 317 | |
| 318 | virtual void getConstantColorComponents(GrColor* color, |
| 319 | uint32_t* validFlags) const SK_OVERRIDE { |
| 320 | // lighting shaders are complicated. We just throw up our hands. |
| 321 | *validFlags = 0; |
| 322 | } |
| 323 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 324 | protected: |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 325 | virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 326 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 327 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 328 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 329 | const SkLight* fLight; |
| 330 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 331 | SkMatrix fFilterMatrix; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 332 | }; |
| 333 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 334 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 335 | public: |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 336 | static GrEffectRef* Create(GrTexture* texture, |
| 337 | const SkLight* light, |
| 338 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 339 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 340 | SkScalar kd) { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 341 | AutoEffectUnref effect(SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 342 | light, |
| 343 | surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 344 | matrix, |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 345 | kd))); |
bsalomon@google.com | a1ebbe4 | 2013-01-16 15:51:47 +0000 | [diff] [blame] | 346 | return CreateEffectRef(effect); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 347 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 348 | |
| 349 | static const char* Name() { return "DiffuseLighting"; } |
| 350 | |
bsalomon@google.com | 422e81a | 2012-10-25 14:11:03 +0000 | [diff] [blame] | 351 | typedef GrGLDiffuseLightingEffect GLEffect; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 352 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 353 | virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 354 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 355 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 356 | private: |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 357 | virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 358 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 359 | GrDiffuseLightingEffect(GrTexture* texture, |
| 360 | const SkLight* light, |
| 361 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 362 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 363 | SkScalar kd); |
| 364 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 365 | GR_DECLARE_EFFECT_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 366 | typedef GrLightingEffect INHERITED; |
| 367 | SkScalar fKD; |
| 368 | }; |
| 369 | |
| 370 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 371 | public: |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 372 | static GrEffectRef* Create(GrTexture* texture, |
| 373 | const SkLight* light, |
| 374 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 375 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 376 | SkScalar ks, |
| 377 | SkScalar shininess) { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 378 | AutoEffectUnref effect(SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 379 | light, |
| 380 | surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 381 | matrix, |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 382 | ks, |
| 383 | shininess))); |
bsalomon@google.com | a1ebbe4 | 2013-01-16 15:51:47 +0000 | [diff] [blame] | 384 | return CreateEffectRef(effect); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 385 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 386 | static const char* Name() { return "SpecularLighting"; } |
| 387 | |
bsalomon@google.com | 422e81a | 2012-10-25 14:11:03 +0000 | [diff] [blame] | 388 | typedef GrGLSpecularLightingEffect GLEffect; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 389 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 390 | virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 391 | SkScalar ks() const { return fKS; } |
| 392 | SkScalar shininess() const { return fShininess; } |
| 393 | |
| 394 | private: |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 395 | virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 396 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 397 | GrSpecularLightingEffect(GrTexture* texture, |
| 398 | const SkLight* light, |
| 399 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 400 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 401 | SkScalar ks, |
| 402 | SkScalar shininess); |
| 403 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 404 | GR_DECLARE_EFFECT_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 405 | typedef GrLightingEffect INHERITED; |
| 406 | SkScalar fKS; |
| 407 | SkScalar fShininess; |
| 408 | }; |
| 409 | |
| 410 | /////////////////////////////////////////////////////////////////////////////// |
| 411 | |
| 412 | class GrGLLight { |
| 413 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 414 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 415 | |
| 416 | /** |
| 417 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 418 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 419 | */ |
| 420 | void emitLightColorUniform(GrGLShaderBuilder*); |
| 421 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 422 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 423 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 424 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 425 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 426 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 427 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 428 | * and so this function only needs to be overridden if the light color varies spatially. |
| 429 | */ |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 430 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 431 | virtual void emitLightColor(GrGLShaderBuilder*, const char *surfaceToLight); |
| 432 | |
| 433 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 434 | // INHERITED::setData(). |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 435 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 436 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 437 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 438 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 439 | /** |
| 440 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 441 | * function. |
| 442 | */ |
| 443 | UniformHandle lightColorUni() const { return fColorUni; } |
| 444 | |
| 445 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 446 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 447 | |
| 448 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 449 | }; |
| 450 | |
| 451 | /////////////////////////////////////////////////////////////////////////////// |
| 452 | |
| 453 | class GrGLDistantLight : public GrGLLight { |
| 454 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 455 | virtual ~GrGLDistantLight() {} |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 456 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 457 | const SkLight* light) const SK_OVERRIDE; |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 458 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 459 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 460 | private: |
| 461 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 462 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 463 | }; |
| 464 | |
| 465 | /////////////////////////////////////////////////////////////////////////////// |
| 466 | |
| 467 | class GrGLPointLight : public GrGLLight { |
| 468 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 469 | virtual ~GrGLPointLight() {} |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 470 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 471 | const SkLight* light) const SK_OVERRIDE; |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 472 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 473 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 474 | private: |
| 475 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 476 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 477 | }; |
| 478 | |
| 479 | /////////////////////////////////////////////////////////////////////////////// |
| 480 | |
| 481 | class GrGLSpotLight : public GrGLLight { |
| 482 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 483 | virtual ~GrGLSpotLight() {} |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 484 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 485 | const SkLight* light) const SK_OVERRIDE; |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 486 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) SK_OVERRIDE; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 487 | virtual void emitLightColor(GrGLShaderBuilder*, const char *surfaceToLight) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 488 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 489 | private: |
| 490 | typedef GrGLLight INHERITED; |
| 491 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 492 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 493 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 494 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 495 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 496 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 497 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 498 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 499 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 500 | #else |
| 501 | |
| 502 | class GrGLLight; |
| 503 | |
| 504 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 505 | |
| 506 | }; |
| 507 | |
| 508 | /////////////////////////////////////////////////////////////////////////////// |
| 509 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 510 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 511 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 512 | SK_DECLARE_INST_COUNT(SkLight) |
| 513 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 514 | enum LightType { |
| 515 | kDistant_LightType, |
| 516 | kPoint_LightType, |
| 517 | kSpot_LightType, |
| 518 | }; |
| 519 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 520 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 521 | virtual GrGLLight* createGLLight() const = 0; |
| 522 | virtual bool isEqual(const SkLight& other) const { |
| 523 | return fColor == other.fColor; |
| 524 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 525 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 526 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 527 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 528 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 529 | // Defined below SkLight's subclasses. |
| 530 | void flattenLight(SkFlattenableWriteBuffer& buffer) const; |
| 531 | static SkLight* UnflattenLight(SkFlattenableReadBuffer& buffer); |
| 532 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 533 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 534 | SkLight(SkColor color) |
| 535 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 536 | SkIntToScalar(SkColorGetG(color)), |
| 537 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 538 | SkLight(const SkPoint3& color) |
| 539 | : fColor(color) {} |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 540 | SkLight(SkFlattenableReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 541 | fColor = readPoint3(buffer); |
| 542 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 543 | |
| 544 | virtual void onFlattenLight(SkFlattenableWriteBuffer& buffer) const = 0; |
| 545 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 546 | |
| 547 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 548 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 549 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 550 | }; |
| 551 | |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 552 | SK_DEFINE_INST_COUNT(SkLight) |
| 553 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 554 | /////////////////////////////////////////////////////////////////////////////// |
| 555 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 556 | class SkDistantLight : public SkLight { |
| 557 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 558 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 559 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 560 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 561 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 562 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 563 | return fDirection; |
| 564 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 565 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 566 | virtual LightType type() const { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 567 | const SkPoint3& direction() const { return fDirection; } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 568 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
| 569 | #if SK_SUPPORT_GPU |
| 570 | return SkNEW(GrGLDistantLight); |
| 571 | #else |
| 572 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 573 | return NULL; |
| 574 | #endif |
| 575 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 576 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return false; } |
| 577 | |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 578 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
| 579 | if (other.type() != kDistant_LightType) { |
| 580 | return false; |
| 581 | } |
| 582 | |
| 583 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 584 | return INHERITED::isEqual(other) && |
| 585 | fDirection == o.fDirection; |
| 586 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 587 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 588 | SkDistantLight(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) { |
| 589 | fDirection = readPoint3(buffer); |
| 590 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 591 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 592 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 593 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 594 | : INHERITED(color), fDirection(direction) { |
| 595 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 596 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 597 | return new SkDistantLight(direction(), color()); |
| 598 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 599 | virtual void onFlattenLight(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 600 | writePoint3(fDirection, buffer); |
| 601 | } |
| 602 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 603 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 604 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 605 | SkPoint3 fDirection; |
| 606 | }; |
| 607 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 608 | /////////////////////////////////////////////////////////////////////////////// |
| 609 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 610 | class SkPointLight : public SkLight { |
| 611 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 612 | SkPointLight(const SkPoint3& location, SkColor color) |
| 613 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 614 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 615 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 616 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 617 | fLocation.fY - SkIntToScalar(y), |
| 618 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 619 | direction.normalize(); |
| 620 | return direction; |
| 621 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 622 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 623 | virtual LightType type() const { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 624 | const SkPoint3& location() const { return fLocation; } |
| 625 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 626 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 627 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 628 | #else |
| 629 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 630 | return NULL; |
| 631 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 632 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 633 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 634 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 635 | if (other.type() != kPoint_LightType) { |
| 636 | return false; |
| 637 | } |
| 638 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 639 | return INHERITED::isEqual(other) && |
| 640 | fLocation == o.fLocation; |
| 641 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 642 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 643 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 644 | matrix.mapPoints(&location2, 1); |
| 645 | SkPoint3 location(location2.fX, location2.fY, fLocation.fZ); |
| 646 | return new SkPointLight(location, color()); |
| 647 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 648 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 649 | SkPointLight(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) { |
| 650 | fLocation = readPoint3(buffer); |
| 651 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 652 | |
| 653 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 654 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 655 | : INHERITED(color), fLocation(location) {} |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 656 | virtual void onFlattenLight(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 657 | writePoint3(fLocation, buffer); |
| 658 | } |
| 659 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 660 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 661 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 662 | SkPoint3 fLocation; |
| 663 | }; |
| 664 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 665 | /////////////////////////////////////////////////////////////////////////////// |
| 666 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 667 | class SkSpotLight : public SkLight { |
| 668 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 669 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle, SkColor color) |
| 670 | : INHERITED(color), |
| 671 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 672 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 673 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 674 | { |
| 675 | fS = target - location; |
| 676 | fS.normalize(); |
| 677 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
| 678 | const SkScalar antiAliasThreshold = SkFloatToScalar(0.016f); |
| 679 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 680 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 681 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 682 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 683 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 684 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 685 | matrix.mapPoints(&location2, 1); |
| 686 | SkPoint3 location(location2.fX, location2.fY, fLocation.fZ); |
| 687 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 688 | matrix.mapPoints(&target2, 1); |
| 689 | SkPoint3 target(target2.fX, target2.fY, fTarget.fZ); |
| 690 | return new SkSpotLight(location, target, fSpecularExponent, fCosOuterConeAngle, fCosInnerConeAngle, fConeScale, fS, color()); |
| 691 | } |
| 692 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 693 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 694 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 695 | fLocation.fY - SkIntToScalar(y), |
| 696 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 697 | direction.normalize(); |
| 698 | return direction; |
| 699 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 700 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 701 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 702 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 703 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 704 | } |
| 705 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 706 | if (cosAngle < fCosInnerConeAngle) { |
| 707 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 708 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 709 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 710 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 711 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 712 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 713 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 714 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 715 | #else |
| 716 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 717 | return NULL; |
| 718 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 719 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 720 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 721 | virtual LightType type() const { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 722 | const SkPoint3& location() const { return fLocation; } |
| 723 | const SkPoint3& target() const { return fTarget; } |
| 724 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 725 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 726 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 727 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 728 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 729 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 730 | SkSpotLight(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) { |
| 731 | fLocation = readPoint3(buffer); |
| 732 | fTarget = readPoint3(buffer); |
| 733 | fSpecularExponent = buffer.readScalar(); |
| 734 | fCosOuterConeAngle = buffer.readScalar(); |
| 735 | fCosInnerConeAngle = buffer.readScalar(); |
| 736 | fConeScale = buffer.readScalar(); |
| 737 | fS = readPoint3(buffer); |
| 738 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 739 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 740 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cosOuterConeAngle, SkScalar cosInnerConeAngle, SkScalar coneScale, const SkPoint3& s, const SkPoint3& color) |
| 741 | : INHERITED(color), |
| 742 | fLocation(location), |
| 743 | fTarget(target), |
| 744 | fSpecularExponent(specularExponent), |
| 745 | fCosOuterConeAngle(cosOuterConeAngle), |
| 746 | fCosInnerConeAngle(cosInnerConeAngle), |
| 747 | fConeScale(coneScale), |
| 748 | fS(s) |
| 749 | { |
| 750 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 751 | virtual void onFlattenLight(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 752 | writePoint3(fLocation, buffer); |
| 753 | writePoint3(fTarget, buffer); |
| 754 | buffer.writeScalar(fSpecularExponent); |
| 755 | buffer.writeScalar(fCosOuterConeAngle); |
| 756 | buffer.writeScalar(fCosInnerConeAngle); |
| 757 | buffer.writeScalar(fConeScale); |
| 758 | writePoint3(fS, buffer); |
| 759 | } |
| 760 | |
senorblanco@chromium.org | bd9fad6 | 2012-07-11 16:25:37 +0000 | [diff] [blame] | 761 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 762 | if (other.type() != kSpot_LightType) { |
| 763 | return false; |
| 764 | } |
| 765 | |
| 766 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 767 | return INHERITED::isEqual(other) && |
| 768 | fLocation == o.fLocation && |
| 769 | fTarget == o.fTarget && |
| 770 | fSpecularExponent == o.fSpecularExponent && |
| 771 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 772 | } |
| 773 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 774 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 775 | static const SkScalar kSpecularExponentMin; |
| 776 | static const SkScalar kSpecularExponentMax; |
| 777 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 778 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 779 | SkPoint3 fLocation; |
| 780 | SkPoint3 fTarget; |
| 781 | SkScalar fSpecularExponent; |
| 782 | SkScalar fCosOuterConeAngle; |
| 783 | SkScalar fCosInnerConeAngle; |
| 784 | SkScalar fConeScale; |
| 785 | SkPoint3 fS; |
| 786 | }; |
| 787 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 788 | // According to the spec, the specular term should be in the range [1, 128] : |
| 789 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
| 790 | const SkScalar SkSpotLight::kSpecularExponentMin = SkFloatToScalar(1.0f); |
| 791 | const SkScalar SkSpotLight::kSpecularExponentMax = SkFloatToScalar(128.0f); |
| 792 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 793 | /////////////////////////////////////////////////////////////////////////////// |
| 794 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 795 | void SkLight::flattenLight(SkFlattenableWriteBuffer& buffer) const { |
| 796 | // Write type first, then baseclass, then subclass. |
| 797 | buffer.writeInt(this->type()); |
| 798 | writePoint3(fColor, buffer); |
| 799 | this->onFlattenLight(buffer); |
| 800 | } |
| 801 | |
| 802 | /*static*/ SkLight* SkLight::UnflattenLight(SkFlattenableReadBuffer& buffer) { |
| 803 | // Read type first. |
| 804 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 805 | switch (type) { |
| 806 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 807 | // then subclass, same order as flattenLight. |
| 808 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 809 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 810 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 811 | default: |
| 812 | SkDEBUGFAIL("Unknown LightType."); |
| 813 | return NULL; |
| 814 | } |
| 815 | } |
| 816 | /////////////////////////////////////////////////////////////////////////////// |
| 817 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 818 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkImageFilter* input, const CropRect* cropRect) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 819 | : INHERITED(input, cropRect), |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 820 | fLight(light), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 821 | fSurfaceScale(SkScalarDiv(surfaceScale, SkIntToScalar(255))) |
| 822 | { |
| 823 | SkASSERT(fLight); |
reed@google.com | 51f3866 | 2012-06-27 14:24:29 +0000 | [diff] [blame] | 824 | // our caller knows that we take ownership of the light, so we don't |
| 825 | // need to call ref() here. |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 826 | } |
| 827 | |
| 828 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 829 | const SkPoint3& direction, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 830 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 831 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 832 | (SkNEW_ARGS(SkDistantLight, (direction, lightColor)), surfaceScale, kd, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 833 | input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 834 | } |
| 835 | |
| 836 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 837 | const SkPoint3& location, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 838 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 839 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 840 | (SkNEW_ARGS(SkPointLight, (location, lightColor)), surfaceScale, kd, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 841 | input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 845 | const SkPoint3& location, const SkPoint3& target, |
| 846 | SkScalar specularExponent, SkScalar cutoffAngle, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 847 | SkColor lightColor, SkScalar surfaceScale, SkScalar kd, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 848 | SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 849 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 850 | (SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 851 | cutoffAngle, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 852 | surfaceScale, kd, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 853 | } |
| 854 | |
| 855 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 856 | const SkPoint3& direction, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 857 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 858 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 859 | (SkNEW_ARGS(SkDistantLight, (direction, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 860 | surfaceScale, ks, shininess, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 864 | const SkPoint3& location, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 865 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 866 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 867 | (SkNEW_ARGS(SkPointLight, (location, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 868 | surfaceScale, ks, shininess, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 869 | } |
| 870 | |
| 871 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 872 | const SkPoint3& location, const SkPoint3& target, |
| 873 | SkScalar specularExponent, SkScalar cutoffAngle, |
| 874 | SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 875 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 876 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
| 877 | (SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, cutoffAngle, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 878 | surfaceScale, ks, shininess, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 879 | } |
| 880 | |
| 881 | SkLightingImageFilter::~SkLightingImageFilter() { |
| 882 | fLight->unref(); |
| 883 | } |
| 884 | |
| 885 | SkLightingImageFilter::SkLightingImageFilter(SkFlattenableReadBuffer& buffer) |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 886 | : INHERITED(buffer) { |
| 887 | fLight = SkLight::UnflattenLight(buffer); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 888 | fSurfaceScale = buffer.readScalar(); |
| 889 | } |
| 890 | |
| 891 | void SkLightingImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
| 892 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame^] | 893 | fLight->flattenLight(buffer); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 894 | buffer.writeScalar(fSurfaceScale); |
| 895 | } |
| 896 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 897 | /////////////////////////////////////////////////////////////////////////////// |
| 898 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 899 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter* input, const CropRect* cropRect = NULL) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 900 | : SkLightingImageFilter(light, surfaceScale, input, cropRect), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 901 | fKD(kd) |
| 902 | { |
| 903 | } |
| 904 | |
| 905 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkFlattenableReadBuffer& buffer) |
| 906 | : INHERITED(buffer) |
| 907 | { |
| 908 | fKD = buffer.readScalar(); |
| 909 | } |
| 910 | |
| 911 | void SkDiffuseLightingImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
| 912 | this->INHERITED::flatten(buffer); |
| 913 | buffer.writeScalar(fKD); |
| 914 | } |
| 915 | |
| 916 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy*, |
| 917 | const SkBitmap& src, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 918 | const SkMatrix& ctm, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 919 | SkBitmap* dst, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 920 | SkIPoint* offset) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 921 | if (src.config() != SkBitmap::kARGB_8888_Config) { |
| 922 | return false; |
| 923 | } |
| 924 | SkAutoLockPixels alp(src); |
| 925 | if (!src.getPixels()) { |
| 926 | return false; |
| 927 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 928 | |
| 929 | SkIRect bounds; |
| 930 | src.getBounds(&bounds); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 931 | if (!this->applyCropRect(&bounds, ctm)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 932 | return false; |
| 933 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 934 | |
| 935 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 936 | return false; |
| 937 | } |
| 938 | |
| 939 | dst->setConfig(src.config(), bounds.width(), bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 940 | dst->allocPixels(); |
| 941 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 942 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctm)); |
| 943 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 944 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 945 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 946 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 947 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 948 | break; |
| 949 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 950 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 951 | break; |
| 952 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 953 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 954 | break; |
| 955 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 956 | |
| 957 | offset->fX += bounds.left(); |
| 958 | offset->fY += bounds.top(); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 959 | return true; |
| 960 | } |
| 961 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 962 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 963 | bool SkDiffuseLightingImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkMatrix& matrix) const { |
bsalomon@google.com | 021fc73 | 2012-10-25 12:47:42 +0000 | [diff] [blame] | 964 | if (effect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 965 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 966 | *effect = GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 967 | } |
| 968 | return true; |
| 969 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 970 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 971 | |
| 972 | /////////////////////////////////////////////////////////////////////////////// |
| 973 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 974 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 975 | : SkLightingImageFilter(light, surfaceScale, input, cropRect), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 976 | fKS(ks), |
| 977 | fShininess(shininess) |
| 978 | { |
| 979 | } |
| 980 | |
| 981 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkFlattenableReadBuffer& buffer) |
| 982 | : INHERITED(buffer) |
| 983 | { |
| 984 | fKS = buffer.readScalar(); |
| 985 | fShininess = buffer.readScalar(); |
| 986 | } |
| 987 | |
| 988 | void SkSpecularLightingImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
| 989 | this->INHERITED::flatten(buffer); |
| 990 | buffer.writeScalar(fKS); |
| 991 | buffer.writeScalar(fShininess); |
| 992 | } |
| 993 | |
| 994 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy*, |
| 995 | const SkBitmap& src, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 996 | const SkMatrix& ctm, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 997 | SkBitmap* dst, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 998 | SkIPoint* offset) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 999 | if (src.config() != SkBitmap::kARGB_8888_Config) { |
| 1000 | return false; |
| 1001 | } |
| 1002 | SkAutoLockPixels alp(src); |
| 1003 | if (!src.getPixels()) { |
| 1004 | return false; |
| 1005 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1006 | |
| 1007 | SkIRect bounds; |
| 1008 | src.getBounds(&bounds); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1009 | if (!this->applyCropRect(&bounds, ctm)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1010 | return false; |
| 1011 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1012 | |
| 1013 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1014 | return false; |
| 1015 | } |
| 1016 | |
| 1017 | dst->setConfig(src.config(), bounds.width(), bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1018 | dst->allocPixels(); |
| 1019 | |
| 1020 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1021 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctm)); |
| 1022 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1023 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1024 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1025 | break; |
| 1026 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1027 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1028 | break; |
| 1029 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1030 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1031 | break; |
| 1032 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1033 | offset->fX += bounds.left(); |
| 1034 | offset->fY += bounds.top(); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1035 | return true; |
| 1036 | } |
| 1037 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1038 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1039 | bool SkSpecularLightingImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkMatrix& matrix) const { |
bsalomon@google.com | 021fc73 | 2012-10-25 12:47:42 +0000 | [diff] [blame] | 1040 | if (effect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1041 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1042 | *effect = GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1043 | } |
| 1044 | return true; |
| 1045 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1046 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1047 | |
| 1048 | /////////////////////////////////////////////////////////////////////////////// |
| 1049 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1050 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1051 | |
| 1052 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1053 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1054 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1055 | SkScalarToFloat(random->nextSScalar1()), |
| 1056 | SkScalarToFloat(random->nextSScalar1())); |
| 1057 | } |
| 1058 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1059 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1060 | int type = random->nextULessThan(3); |
| 1061 | switch (type) { |
| 1062 | case 0: { |
| 1063 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1064 | } |
| 1065 | case 1: { |
| 1066 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1067 | } |
| 1068 | case 2: { |
| 1069 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1070 | random_point3(random), |
| 1071 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1072 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1073 | random->nextU())); |
| 1074 | } |
| 1075 | default: |
| 1076 | GrCrash(); |
| 1077 | return NULL; |
| 1078 | } |
| 1079 | } |
| 1080 | |
| 1081 | } |
| 1082 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1083 | class GrGLLightingEffect : public GrGLEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1084 | public: |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1085 | GrGLLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1086 | const GrDrawEffect& effect); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1087 | virtual ~GrGLLightingEffect(); |
| 1088 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1089 | virtual void emitCode(GrGLShaderBuilder*, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1090 | const GrDrawEffect&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1091 | EffectKey, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1092 | const char* outputColor, |
| 1093 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1094 | const TransformedCoordsArray&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1095 | const TextureSamplerArray&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1096 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1097 | static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1098 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1099 | /** |
| 1100 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1101 | */ |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1102 | virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1103 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1104 | protected: |
| 1105 | virtual void emitLightFunc(GrGLShaderBuilder*, SkString* funcName) = 0; |
| 1106 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1107 | private: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1108 | typedef GrGLEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1109 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1110 | UniformHandle fImageIncrementUni; |
| 1111 | UniformHandle fSurfaceScaleUni; |
| 1112 | GrGLLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1113 | }; |
| 1114 | |
| 1115 | /////////////////////////////////////////////////////////////////////////////// |
| 1116 | |
| 1117 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1118 | public: |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1119 | GrGLDiffuseLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1120 | const GrDrawEffect& drawEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1121 | virtual void emitLightFunc(GrGLShaderBuilder*, SkString* funcName) SK_OVERRIDE; |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1122 | virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1123 | |
| 1124 | private: |
| 1125 | typedef GrGLLightingEffect INHERITED; |
| 1126 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1127 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1128 | }; |
| 1129 | |
| 1130 | /////////////////////////////////////////////////////////////////////////////// |
| 1131 | |
| 1132 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1133 | public: |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1134 | GrGLSpecularLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1135 | const GrDrawEffect& effect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1136 | virtual void emitLightFunc(GrGLShaderBuilder*, SkString* funcName) SK_OVERRIDE; |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1137 | virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1138 | |
| 1139 | private: |
| 1140 | typedef GrGLLightingEffect INHERITED; |
| 1141 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1142 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1143 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1144 | }; |
| 1145 | |
| 1146 | /////////////////////////////////////////////////////////////////////////////// |
| 1147 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1148 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1149 | const SkLight* light, |
| 1150 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1151 | const SkMatrix& matrix) |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1152 | : INHERITED(texture, MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1153 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1154 | , fSurfaceScale(surfaceScale) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1155 | , fFilterMatrix(matrix) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1156 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1157 | if (light->requiresFragmentPosition()) { |
| 1158 | this->setWillReadFragmentPosition(); |
| 1159 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1160 | } |
| 1161 | |
| 1162 | GrLightingEffect::~GrLightingEffect() { |
| 1163 | fLight->unref(); |
| 1164 | } |
| 1165 | |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 1166 | bool GrLightingEffect::onIsEqual(const GrEffect& sBase) const { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 1167 | const GrLightingEffect& s = CastEffect<GrLightingEffect>(sBase); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1168 | return this->texture(0) == s.texture(0) && |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1169 | fLight->isEqual(*s.fLight) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1170 | fSurfaceScale == s.fSurfaceScale; |
| 1171 | } |
| 1172 | |
| 1173 | /////////////////////////////////////////////////////////////////////////////// |
| 1174 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1175 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1176 | const SkLight* light, |
| 1177 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1178 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1179 | SkScalar kd) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1180 | : INHERITED(texture, light, surfaceScale, matrix), fKD(kd) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1181 | } |
| 1182 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1183 | const GrBackendEffectFactory& GrDiffuseLightingEffect::getFactory() const { |
| 1184 | return GrTBackendEffectFactory<GrDiffuseLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1185 | } |
| 1186 | |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 1187 | bool GrDiffuseLightingEffect::onIsEqual(const GrEffect& sBase) const { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 1188 | const GrDiffuseLightingEffect& s = CastEffect<GrDiffuseLightingEffect>(sBase); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1189 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1190 | this->kd() == s.kd(); |
| 1191 | } |
| 1192 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 1193 | GR_DEFINE_EFFECT_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1194 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1195 | GrEffectRef* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1196 | GrContext* context, |
bsalomon@google.com | c26d94f | 2013-03-25 18:19:00 +0000 | [diff] [blame] | 1197 | const GrDrawTargetCaps&, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1198 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1199 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1200 | SkScalar kd = random->nextUScalar1(); |
| 1201 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1202 | SkMatrix matrix; |
| 1203 | for (int i = 0; i < 9; i++) { |
| 1204 | matrix[i] = random->nextUScalar1(); |
| 1205 | } |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1206 | return GrDiffuseLightingEffect::Create(textures[GrEffectUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1207 | light, surfaceScale, matrix, kd); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1208 | } |
| 1209 | |
| 1210 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1211 | /////////////////////////////////////////////////////////////////////////////// |
| 1212 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1213 | GrGLLightingEffect::GrGLLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1214 | const GrDrawEffect& drawEffect) |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1215 | : INHERITED(factory) { |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1216 | const GrLightingEffect& m = drawEffect.castEffect<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1217 | fLight = m.light()->createGLLight(); |
| 1218 | } |
| 1219 | |
| 1220 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1221 | delete fLight; |
| 1222 | } |
| 1223 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1224 | void GrGLLightingEffect::emitCode(GrGLShaderBuilder* builder, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1225 | const GrDrawEffect&, |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1226 | EffectKey key, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1227 | const char* outputColor, |
| 1228 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1229 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1230 | const TextureSamplerArray& samplers) { |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1231 | SkString coords2D = builder->ensureFSCoords2D(coords, 0); |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1232 | |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1233 | fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1234 | kVec2f_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1235 | "ImageIncrement"); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1236 | fSurfaceScaleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1237 | kFloat_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1238 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1239 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1240 | SkString lightFunc; |
| 1241 | this->emitLightFunc(builder, &lightFunc); |
| 1242 | static const GrGLShaderVar gSobelArgs[] = { |
| 1243 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1244 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1245 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1246 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1247 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1248 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1249 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1250 | }; |
| 1251 | SkString sobelFuncName; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1252 | builder->fsEmitFunction(kFloat_GrSLType, |
| 1253 | "sobel", |
| 1254 | SK_ARRAY_COUNT(gSobelArgs), |
| 1255 | gSobelArgs, |
| 1256 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1257 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1258 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1259 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1260 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1261 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1262 | }; |
| 1263 | SkString pointToNormalName; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1264 | builder->fsEmitFunction(kVec3f_GrSLType, |
| 1265 | "pointToNormal", |
| 1266 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1267 | gPointToNormalArgs, |
| 1268 | "\treturn normalize(vec3(-x * scale, y * scale, 1));\n", |
| 1269 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1270 | |
| 1271 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1272 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1273 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1274 | }; |
| 1275 | SkString interiorNormalBody; |
| 1276 | interiorNormalBody.appendf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], 0.25),\n" |
| 1277 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], 0.25),\n" |
| 1278 | "\t surfaceScale);\n", |
| 1279 | pointToNormalName.c_str(), |
| 1280 | sobelFuncName.c_str(), |
| 1281 | sobelFuncName.c_str()); |
| 1282 | SkString interiorNormalName; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1283 | builder->fsEmitFunction(kVec3f_GrSLType, |
| 1284 | "interiorNormal", |
| 1285 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1286 | gInteriorNormalArgs, |
| 1287 | interiorNormalBody.c_str(), |
| 1288 | &interiorNormalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1289 | |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1290 | builder->fsCodeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1291 | builder->fsCodeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1292 | |
| 1293 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1294 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1295 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1296 | int index = 0; |
| 1297 | for (int dy = -1; dy <= 1; dy++) { |
| 1298 | for (int dx = -1; dx <= 1; dx++) { |
| 1299 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1300 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1301 | builder->fsCodeAppendf("\t\tm[%d] = ", index++); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1302 | builder->fsAppendTextureLookup(samplers[0], texCoords.c_str()); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1303 | builder->fsCodeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1304 | } |
| 1305 | } |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1306 | builder->fsCodeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1307 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1308 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1309 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
| 1310 | builder->fsCodeAppend(";\n"); |
| 1311 | builder->fsCodeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
| 1312 | outputColor, lightFunc.c_str(), interiorNormalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1313 | fLight->emitLightColor(builder, "surfaceToLight"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1314 | builder->fsCodeAppend(");\n"); |
| 1315 | SkString modulate; |
| 1316 | GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); |
| 1317 | builder->fsCodeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1318 | } |
| 1319 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1320 | GrGLEffect::EffectKey GrGLLightingEffect::GenKey(const GrDrawEffect& drawEffect, |
bsalomon@google.com | 2eaaefd | 2012-10-29 19:51:22 +0000 | [diff] [blame] | 1321 | const GrGLCaps& caps) { |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1322 | return drawEffect.castEffect<GrLightingEffect>().light()->type(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1323 | } |
| 1324 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1325 | void GrGLLightingEffect::setData(const GrGLUniformManager& uman, |
| 1326 | const GrDrawEffect& drawEffect) { |
| 1327 | const GrLightingEffect& lighting = drawEffect.castEffect<GrLightingEffect>(); |
| 1328 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1329 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1330 | uman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1331 | uman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1332 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
| 1333 | fLight->setData(uman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1334 | } |
| 1335 | |
| 1336 | /////////////////////////////////////////////////////////////////////////////// |
| 1337 | |
| 1338 | /////////////////////////////////////////////////////////////////////////////// |
| 1339 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1340 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1341 | const GrDrawEffect& drawEffect) |
commit-bot@chromium.org | 7425c12 | 2013-08-14 18:14:19 +0000 | [diff] [blame] | 1342 | : INHERITED(factory, drawEffect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1343 | } |
| 1344 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1345 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLShaderBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1346 | const char* kd; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1347 | fKDUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1348 | kFloat_GrSLType, |
| 1349 | "KD", |
| 1350 | &kd); |
| 1351 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1352 | static const GrGLShaderVar gLightArgs[] = { |
| 1353 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1354 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1355 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1356 | }; |
| 1357 | SkString lightBody; |
| 1358 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1359 | lightBody.appendf("\treturn vec4(lightColor * clamp(colorScale, 0.0, 1.0), 1.0);\n"); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1360 | builder->fsEmitFunction(kVec4f_GrSLType, |
| 1361 | "light", |
| 1362 | SK_ARRAY_COUNT(gLightArgs), |
| 1363 | gLightArgs, |
| 1364 | lightBody.c_str(), |
| 1365 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1366 | } |
| 1367 | |
bsalomon@google.com | 28a15fb | 2012-10-26 17:53:18 +0000 | [diff] [blame] | 1368 | void GrGLDiffuseLightingEffect::setData(const GrGLUniformManager& uman, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1369 | const GrDrawEffect& drawEffect) { |
| 1370 | INHERITED::setData(uman, drawEffect); |
| 1371 | const GrDiffuseLightingEffect& diffuse = drawEffect.castEffect<GrDiffuseLightingEffect>(); |
| 1372 | uman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1373 | } |
| 1374 | |
| 1375 | /////////////////////////////////////////////////////////////////////////////// |
| 1376 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1377 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1378 | const SkLight* light, |
| 1379 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1380 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1381 | SkScalar ks, |
| 1382 | SkScalar shininess) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1383 | : INHERITED(texture, light, surfaceScale, matrix), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1384 | fKS(ks), |
| 1385 | fShininess(shininess) { |
| 1386 | } |
| 1387 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1388 | const GrBackendEffectFactory& GrSpecularLightingEffect::getFactory() const { |
| 1389 | return GrTBackendEffectFactory<GrSpecularLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1390 | } |
| 1391 | |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 1392 | bool GrSpecularLightingEffect::onIsEqual(const GrEffect& sBase) const { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 1393 | const GrSpecularLightingEffect& s = CastEffect<GrSpecularLightingEffect>(sBase); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1394 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1395 | this->ks() == s.ks() && |
| 1396 | this->shininess() == s.shininess(); |
| 1397 | } |
| 1398 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 1399 | GR_DEFINE_EFFECT_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1400 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1401 | GrEffectRef* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1402 | GrContext* context, |
bsalomon@google.com | c26d94f | 2013-03-25 18:19:00 +0000 | [diff] [blame] | 1403 | const GrDrawTargetCaps&, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1404 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1405 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1406 | SkScalar ks = random->nextUScalar1(); |
| 1407 | SkScalar shininess = random->nextUScalar1(); |
| 1408 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1409 | SkMatrix matrix; |
| 1410 | for (int i = 0; i < 9; i++) { |
| 1411 | matrix[i] = random->nextUScalar1(); |
| 1412 | } |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1413 | return GrSpecularLightingEffect::Create(textures[GrEffectUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1414 | light, surfaceScale, matrix, ks, shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1415 | } |
| 1416 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1417 | /////////////////////////////////////////////////////////////////////////////// |
| 1418 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1419 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1420 | const GrDrawEffect& drawEffect) |
commit-bot@chromium.org | 7425c12 | 2013-08-14 18:14:19 +0000 | [diff] [blame] | 1421 | : INHERITED(factory, drawEffect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1422 | } |
| 1423 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1424 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLShaderBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1425 | const char* ks; |
| 1426 | const char* shininess; |
| 1427 | |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1428 | fKSUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1429 | kFloat_GrSLType, "KS", &ks); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1430 | fShininessUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1431 | kFloat_GrSLType, "Shininess", &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1432 | |
| 1433 | static const GrGLShaderVar gLightArgs[] = { |
| 1434 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1435 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1436 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1437 | }; |
| 1438 | SkString lightBody; |
| 1439 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1440 | 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] | 1441 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1442 | lightBody.appendf("\treturn vec4(color, max(max(color.r, color.g), color.b));\n"); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1443 | builder->fsEmitFunction(kVec4f_GrSLType, |
| 1444 | "light", |
| 1445 | SK_ARRAY_COUNT(gLightArgs), |
| 1446 | gLightArgs, |
| 1447 | lightBody.c_str(), |
| 1448 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1449 | } |
| 1450 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1451 | void GrGLSpecularLightingEffect::setData(const GrGLUniformManager& uman, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1452 | const GrDrawEffect& drawEffect) { |
| 1453 | INHERITED::setData(uman, drawEffect); |
| 1454 | const GrSpecularLightingEffect& spec = drawEffect.castEffect<GrSpecularLightingEffect>(); |
| 1455 | uman.set1f(fKSUni, spec.ks()); |
| 1456 | uman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1457 | } |
| 1458 | |
| 1459 | /////////////////////////////////////////////////////////////////////////////// |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1460 | void GrGLLight::emitLightColorUniform(GrGLShaderBuilder* builder) { |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1461 | fColorUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1462 | kVec3f_GrSLType, "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1463 | } |
| 1464 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1465 | void GrGLLight::emitLightColor(GrGLShaderBuilder* builder, |
| 1466 | const char *surfaceToLight) { |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1467 | builder->fsCodeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1468 | } |
| 1469 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1470 | void GrGLLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1471 | const SkLight* light) const { |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1472 | setUniformPoint3(uman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1473 | } |
| 1474 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1475 | /////////////////////////////////////////////////////////////////////////////// |
| 1476 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1477 | void GrGLDistantLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1478 | const SkLight* light) const { |
| 1479 | INHERITED::setData(uman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1480 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1481 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1482 | setUniformNormal3(uman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1483 | } |
| 1484 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1485 | void GrGLDistantLight::emitSurfaceToLight(GrGLShaderBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1486 | const char* dir; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1487 | fDirectionUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1488 | "LightDirection", &dir); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1489 | builder->fsCodeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1490 | } |
| 1491 | |
| 1492 | /////////////////////////////////////////////////////////////////////////////// |
| 1493 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1494 | void GrGLPointLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1495 | const SkLight* light) const { |
| 1496 | INHERITED::setData(uman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1497 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1498 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1499 | setUniformPoint3(uman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1500 | } |
| 1501 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1502 | void GrGLPointLight::emitSurfaceToLight(GrGLShaderBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1503 | const char* loc; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1504 | fLocationUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1505 | "LightLocation", &loc); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1506 | builder->fsCodeAppendf("normalize(%s - vec3(%s.xy, %s))", loc, builder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1507 | } |
| 1508 | |
| 1509 | /////////////////////////////////////////////////////////////////////////////// |
| 1510 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1511 | void GrGLSpotLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1512 | const SkLight* light) const { |
| 1513 | INHERITED::setData(uman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1514 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1515 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1516 | setUniformPoint3(uman, fLocationUni, spotLight->location()); |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1517 | uman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1518 | uman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1519 | uman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1520 | uman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1521 | setUniformNormal3(uman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1522 | } |
| 1523 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1524 | void GrGLSpotLight::emitSurfaceToLight(GrGLShaderBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1525 | const char* location; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1526 | fLocationUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1527 | kVec3f_GrSLType, "LightLocation", &location); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1528 | builder->fsCodeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1529 | location, builder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1530 | } |
| 1531 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1532 | void GrGLSpotLight::emitLightColor(GrGLShaderBuilder* builder, |
| 1533 | const char *surfaceToLight) { |
| 1534 | |
| 1535 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1536 | |
| 1537 | const char* exponent; |
| 1538 | const char* cosInner; |
| 1539 | const char* cosOuter; |
| 1540 | const char* coneScale; |
| 1541 | const char* s; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1542 | fExponentUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1543 | kFloat_GrSLType, "Exponent", &exponent); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1544 | fCosInnerConeAngleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1545 | kFloat_GrSLType, "CosInnerConeAngle", &cosInner); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1546 | fCosOuterConeAngleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1547 | kFloat_GrSLType, "CosOuterConeAngle", &cosOuter); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1548 | fConeScaleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1549 | kFloat_GrSLType, "ConeScale", &coneScale); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1550 | fSUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1551 | kVec3f_GrSLType, "S", &s); |
| 1552 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1553 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1554 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1555 | }; |
| 1556 | SkString lightColorBody; |
| 1557 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1558 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1559 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1560 | lightColorBody.appendf("\t}\n"); |
| 1561 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1562 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1563 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1564 | color, cosOuter, coneScale); |
| 1565 | lightColorBody.appendf("\t}\n"); |
| 1566 | lightColorBody.appendf("\treturn %s;\n", color); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1567 | builder->fsEmitFunction(kVec3f_GrSLType, |
| 1568 | "lightColor", |
| 1569 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1570 | gLightColorArgs, |
| 1571 | lightColorBody.c_str(), |
| 1572 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1573 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1574 | builder->fsCodeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1575 | } |
| 1576 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1577 | #endif |
| 1578 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1579 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 1580 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 1581 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1582 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |