senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkLightingImageFilter.h" |
| 9 | #include "SkBitmap.h" |
| 10 | #include "SkColorPriv.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 11 | #include "SkReadBuffer.h" |
| 12 | #include "SkWriteBuffer.h" |
| 13 | #include "SkReadBuffer.h" |
| 14 | #include "SkWriteBuffer.h" |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 15 | #include "SkTypes.h" |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 16 | |
| 17 | #if SK_SUPPORT_GPU |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 18 | #include "effects/GrSingleTextureEffect.h" |
bsalomon@google.com | d698f77 | 2012-10-25 13:22:00 +0000 | [diff] [blame] | 19 | #include "gl/GrGLEffect.h" |
bsalomon@google.com | a469c28 | 2012-10-24 18:28:34 +0000 | [diff] [blame] | 20 | #include "GrEffect.h" |
bsalomon@google.com | 2eaaefd | 2012-10-29 19:51:22 +0000 | [diff] [blame] | 21 | #include "GrTBackendEffectFactory.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 22 | |
| 23 | class GrGLDiffuseLightingEffect; |
| 24 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 25 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 26 | // For brevity |
| 27 | typedef GrGLUniformManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 28 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 29 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 30 | namespace { |
| 31 | |
| 32 | const SkScalar gOneThird = SkScalarInvert(SkIntToScalar(3)); |
| 33 | const SkScalar gTwoThirds = SkScalarDiv(SkIntToScalar(2), SkIntToScalar(3)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 34 | const SkScalar gOneHalf = 0.5f; |
| 35 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 36 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 37 | #if SK_SUPPORT_GPU |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 38 | void setUniformPoint3(const GrGLUniformManager& uman, UniformHandle uni, const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 39 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
commit-bot@chromium.org | d3baf20 | 2013-11-07 22:06:08 +0000 | [diff] [blame] | 40 | uman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 41 | } |
| 42 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 43 | void setUniformNormal3(const GrGLUniformManager& uman, UniformHandle uni, const SkPoint3& point) { |
bsalomon@google.com | 706f668 | 2012-10-23 14:53:55 +0000 | [diff] [blame] | 44 | setUniformPoint3(uman, uni, SkPoint3(point.fX, point.fY, point.fZ)); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 45 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 46 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 47 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 48 | // Shift matrix components to the left, as we advance pixels to the right. |
| 49 | inline void shiftMatrixLeft(int m[9]) { |
| 50 | m[0] = m[1]; |
| 51 | m[3] = m[4]; |
| 52 | m[6] = m[7]; |
| 53 | m[1] = m[2]; |
| 54 | m[4] = m[5]; |
| 55 | m[7] = m[8]; |
| 56 | } |
| 57 | |
| 58 | class DiffuseLightingType { |
| 59 | public: |
| 60 | DiffuseLightingType(SkScalar kd) |
| 61 | : fKD(kd) {} |
| 62 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, const SkPoint3& lightColor) const { |
| 63 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 64 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 65 | SkPoint3 color(lightColor * colorScale); |
| 66 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 67 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 68 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 69 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 70 | } |
| 71 | private: |
| 72 | SkScalar fKD; |
| 73 | }; |
| 74 | |
| 75 | class SpecularLightingType { |
| 76 | public: |
| 77 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 78 | : fKS(ks), fShininess(shininess) {} |
| 79 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, const SkPoint3& lightColor) const { |
| 80 | SkPoint3 halfDir(surfaceTolight); |
| 81 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
| 82 | halfDir.normalize(); |
| 83 | SkScalar colorScale = SkScalarMul(fKS, |
| 84 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 85 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 86 | SkPoint3 color(lightColor * colorScale); |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 87 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(color.maxComponent()), 255), |
| 88 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 89 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 90 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 91 | } |
| 92 | private: |
| 93 | SkScalar fKS; |
| 94 | SkScalar fShininess; |
| 95 | }; |
| 96 | |
| 97 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 98 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 99 | } |
| 100 | |
| 101 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
| 102 | SkPoint3 vector(SkScalarMul(-x, surfaceScale), |
| 103 | SkScalarMul(-y, surfaceScale), |
| 104 | SK_Scalar1); |
| 105 | vector.normalize(); |
| 106 | return vector; |
| 107 | } |
| 108 | |
| 109 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 110 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 111 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 112 | surfaceScale); |
| 113 | } |
| 114 | |
| 115 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 116 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 117 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 118 | surfaceScale); |
| 119 | } |
| 120 | |
| 121 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 122 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 123 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 124 | surfaceScale); |
| 125 | } |
| 126 | |
| 127 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 128 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 129 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 130 | surfaceScale); |
| 131 | } |
| 132 | |
| 133 | |
| 134 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 135 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 136 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 137 | surfaceScale); |
| 138 | } |
| 139 | |
| 140 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 141 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 142 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 143 | surfaceScale); |
| 144 | } |
| 145 | |
| 146 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 147 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 148 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 149 | surfaceScale); |
| 150 | } |
| 151 | |
| 152 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 153 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 154 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 155 | surfaceScale); |
| 156 | } |
| 157 | |
| 158 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 159 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 160 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 161 | surfaceScale); |
| 162 | } |
| 163 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 164 | template <class LightingType, class LightType> void lightBitmap(const LightingType& lightingType, const SkLight* light, const SkBitmap& src, SkBitmap* dst, SkScalar surfaceScale, const SkIRect& bounds) { |
| 165 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 166 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 167 | int left = bounds.left(), right = bounds.right(); |
| 168 | int bottom = bounds.bottom(); |
| 169 | int y = bounds.top(); |
| 170 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 171 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 172 | int x = left; |
| 173 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 174 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 175 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 176 | m[4] = SkGetPackedA32(*row1++); |
| 177 | m[5] = SkGetPackedA32(*row1++); |
| 178 | m[7] = SkGetPackedA32(*row2++); |
| 179 | m[8] = SkGetPackedA32(*row2++); |
| 180 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 181 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 182 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 183 | { |
| 184 | shiftMatrixLeft(m); |
| 185 | m[5] = SkGetPackedA32(*row1++); |
| 186 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 187 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 188 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 189 | } |
| 190 | shiftMatrixLeft(m); |
| 191 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 192 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 193 | } |
| 194 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 195 | for (++y; y < bottom - 1; ++y) { |
| 196 | int x = left; |
| 197 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 198 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 199 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 200 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 201 | m[1] = SkGetPackedA32(*row0++); |
| 202 | m[2] = SkGetPackedA32(*row0++); |
| 203 | m[4] = SkGetPackedA32(*row1++); |
| 204 | m[5] = SkGetPackedA32(*row1++); |
| 205 | m[7] = SkGetPackedA32(*row2++); |
| 206 | m[8] = SkGetPackedA32(*row2++); |
| 207 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 208 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 209 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 210 | shiftMatrixLeft(m); |
| 211 | m[2] = SkGetPackedA32(*row0++); |
| 212 | m[5] = SkGetPackedA32(*row1++); |
| 213 | m[8] = SkGetPackedA32(*row2++); |
| 214 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 215 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 216 | } |
| 217 | shiftMatrixLeft(m); |
| 218 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 219 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 220 | } |
| 221 | |
| 222 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 223 | int x = left; |
| 224 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 225 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 226 | int m[9]; |
| 227 | m[1] = SkGetPackedA32(*row0++); |
| 228 | m[2] = SkGetPackedA32(*row0++); |
| 229 | m[4] = SkGetPackedA32(*row1++); |
| 230 | m[5] = SkGetPackedA32(*row1++); |
| 231 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 232 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 233 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 234 | { |
| 235 | shiftMatrixLeft(m); |
| 236 | m[2] = SkGetPackedA32(*row0++); |
| 237 | m[5] = SkGetPackedA32(*row1++); |
| 238 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 239 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 240 | } |
| 241 | shiftMatrixLeft(m); |
| 242 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 243 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 244 | } |
| 245 | } |
| 246 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 247 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 248 | SkPoint3 point; |
| 249 | point.fX = buffer.readScalar(); |
| 250 | point.fY = buffer.readScalar(); |
| 251 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 252 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 253 | SkScalarIsFinite(point.fY) && |
| 254 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 255 | return point; |
| 256 | }; |
| 257 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 258 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 259 | buffer.writeScalar(point.fX); |
| 260 | buffer.writeScalar(point.fY); |
| 261 | buffer.writeScalar(point.fZ); |
| 262 | }; |
| 263 | |
| 264 | class SkDiffuseLightingImageFilter : public SkLightingImageFilter { |
| 265 | public: |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 266 | SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 267 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 268 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
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: |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 272 | explicit SkDiffuseLightingImageFilter(SkReadBuffer& buffer); |
| 273 | virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 274 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 275 | SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 276 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 7938bae | 2013-10-18 20:08:14 +0000 | [diff] [blame] | 277 | virtual bool asNewEffect(GrEffectRef** effect, GrTexture*, const SkMatrix& matrix, const SkIRect& bounds) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 278 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 279 | |
| 280 | private: |
| 281 | typedef SkLightingImageFilter INHERITED; |
| 282 | SkScalar fKD; |
| 283 | }; |
| 284 | |
| 285 | class SkSpecularLightingImageFilter : public SkLightingImageFilter { |
| 286 | public: |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 287 | 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] | 288 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 289 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 290 | SkScalar ks() const { return fKS; } |
| 291 | SkScalar shininess() const { return fShininess; } |
| 292 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 293 | protected: |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 294 | explicit SkSpecularLightingImageFilter(SkReadBuffer& buffer); |
| 295 | virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE; |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 296 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 297 | SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 298 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 7938bae | 2013-10-18 20:08:14 +0000 | [diff] [blame] | 299 | virtual bool asNewEffect(GrEffectRef** effect, GrTexture*, const SkMatrix& matrix, const SkIRect& bounds) const SK_OVERRIDE; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 300 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 301 | |
| 302 | private: |
| 303 | typedef SkLightingImageFilter INHERITED; |
| 304 | SkScalar fKS; |
| 305 | SkScalar fShininess; |
| 306 | }; |
| 307 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 308 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 309 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 310 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 311 | public: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 312 | GrLightingEffect(GrTexture* texture, const SkLight* light, SkScalar surfaceScale, const SkMatrix& matrix); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 313 | virtual ~GrLightingEffect(); |
| 314 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 315 | const SkLight* light() const { return fLight; } |
| 316 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 317 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 318 | |
| 319 | virtual void getConstantColorComponents(GrColor* color, |
| 320 | uint32_t* validFlags) const SK_OVERRIDE { |
| 321 | // lighting shaders are complicated. We just throw up our hands. |
| 322 | *validFlags = 0; |
| 323 | } |
| 324 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 325 | protected: |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 326 | virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 327 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 328 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 329 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 330 | const SkLight* fLight; |
| 331 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 332 | SkMatrix fFilterMatrix; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 333 | }; |
| 334 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 335 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 336 | public: |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 337 | static GrEffectRef* Create(GrTexture* texture, |
| 338 | const SkLight* light, |
| 339 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 340 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 341 | SkScalar kd) { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 342 | AutoEffectUnref effect(SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 343 | light, |
| 344 | surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 345 | matrix, |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 346 | kd))); |
bsalomon@google.com | a1ebbe4 | 2013-01-16 15:51:47 +0000 | [diff] [blame] | 347 | return CreateEffectRef(effect); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 348 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 349 | |
| 350 | static const char* Name() { return "DiffuseLighting"; } |
| 351 | |
bsalomon@google.com | 422e81a | 2012-10-25 14:11:03 +0000 | [diff] [blame] | 352 | typedef GrGLDiffuseLightingEffect GLEffect; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 353 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 354 | virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 355 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 356 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 357 | private: |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 358 | virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 359 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 360 | GrDiffuseLightingEffect(GrTexture* texture, |
| 361 | const SkLight* light, |
| 362 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 363 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 364 | SkScalar kd); |
| 365 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 366 | GR_DECLARE_EFFECT_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 367 | typedef GrLightingEffect INHERITED; |
| 368 | SkScalar fKD; |
| 369 | }; |
| 370 | |
| 371 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 372 | public: |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 373 | static GrEffectRef* Create(GrTexture* texture, |
| 374 | const SkLight* light, |
| 375 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 376 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 377 | SkScalar ks, |
| 378 | SkScalar shininess) { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 379 | AutoEffectUnref effect(SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 380 | light, |
| 381 | surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 382 | matrix, |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 383 | ks, |
| 384 | shininess))); |
bsalomon@google.com | a1ebbe4 | 2013-01-16 15:51:47 +0000 | [diff] [blame] | 385 | return CreateEffectRef(effect); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 386 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 387 | static const char* Name() { return "SpecularLighting"; } |
| 388 | |
bsalomon@google.com | 422e81a | 2012-10-25 14:11:03 +0000 | [diff] [blame] | 389 | typedef GrGLSpecularLightingEffect GLEffect; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 390 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 391 | virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 392 | SkScalar ks() const { return fKS; } |
| 393 | SkScalar shininess() const { return fShininess; } |
| 394 | |
| 395 | private: |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 396 | virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 397 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 398 | GrSpecularLightingEffect(GrTexture* texture, |
| 399 | const SkLight* light, |
| 400 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 401 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 402 | SkScalar ks, |
| 403 | SkScalar shininess); |
| 404 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 405 | GR_DECLARE_EFFECT_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 406 | typedef GrLightingEffect INHERITED; |
| 407 | SkScalar fKS; |
| 408 | SkScalar fShininess; |
| 409 | }; |
| 410 | |
| 411 | /////////////////////////////////////////////////////////////////////////////// |
| 412 | |
| 413 | class GrGLLight { |
| 414 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 415 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 416 | |
| 417 | /** |
| 418 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 419 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 420 | */ |
| 421 | void emitLightColorUniform(GrGLShaderBuilder*); |
| 422 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 423 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 424 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 425 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 426 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 427 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 428 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 429 | * and so this function only needs to be overridden if the light color varies spatially. |
| 430 | */ |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 431 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 432 | virtual void emitLightColor(GrGLShaderBuilder*, const char *surfaceToLight); |
| 433 | |
| 434 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 435 | // INHERITED::setData(). |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 436 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 437 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 438 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 439 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 440 | /** |
| 441 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 442 | * function. |
| 443 | */ |
| 444 | UniformHandle lightColorUni() const { return fColorUni; } |
| 445 | |
| 446 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 447 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 448 | |
| 449 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 450 | }; |
| 451 | |
| 452 | /////////////////////////////////////////////////////////////////////////////// |
| 453 | |
| 454 | class GrGLDistantLight : public GrGLLight { |
| 455 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 456 | virtual ~GrGLDistantLight() {} |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 457 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 458 | const SkLight* light) const SK_OVERRIDE; |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 459 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 460 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 461 | private: |
| 462 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 463 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 464 | }; |
| 465 | |
| 466 | /////////////////////////////////////////////////////////////////////////////// |
| 467 | |
| 468 | class GrGLPointLight : public GrGLLight { |
| 469 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 470 | virtual ~GrGLPointLight() {} |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 471 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 472 | const SkLight* light) const SK_OVERRIDE; |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 473 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 474 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 475 | private: |
| 476 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 477 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 478 | }; |
| 479 | |
| 480 | /////////////////////////////////////////////////////////////////////////////// |
| 481 | |
| 482 | class GrGLSpotLight : public GrGLLight { |
| 483 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 484 | virtual ~GrGLSpotLight() {} |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 485 | virtual void setData(const GrGLUniformManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 486 | const SkLight* light) const SK_OVERRIDE; |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 487 | virtual void emitSurfaceToLight(GrGLShaderBuilder*, const char* z) SK_OVERRIDE; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 488 | virtual void emitLightColor(GrGLShaderBuilder*, const char *surfaceToLight) SK_OVERRIDE; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 489 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 490 | private: |
| 491 | typedef GrGLLight INHERITED; |
| 492 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 493 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 494 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 495 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 496 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 497 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 498 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 499 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 500 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 501 | #else |
| 502 | |
| 503 | class GrGLLight; |
| 504 | |
| 505 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 506 | |
| 507 | }; |
| 508 | |
| 509 | /////////////////////////////////////////////////////////////////////////////// |
| 510 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 511 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 512 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 513 | SK_DECLARE_INST_COUNT(SkLight) |
| 514 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 515 | enum LightType { |
| 516 | kDistant_LightType, |
| 517 | kPoint_LightType, |
| 518 | kSpot_LightType, |
| 519 | }; |
| 520 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 521 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 522 | virtual GrGLLight* createGLLight() const = 0; |
| 523 | virtual bool isEqual(const SkLight& other) const { |
| 524 | return fColor == other.fColor; |
| 525 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 526 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 527 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 528 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 529 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 530 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 531 | void flattenLight(SkWriteBuffer& buffer) const; |
| 532 | static SkLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 533 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 534 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 535 | SkLight(SkColor color) |
| 536 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 537 | SkIntToScalar(SkColorGetG(color)), |
| 538 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 539 | SkLight(const SkPoint3& color) |
| 540 | : fColor(color) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 541 | SkLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 542 | fColor = readPoint3(buffer); |
| 543 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 544 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 545 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 546 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 547 | |
| 548 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 549 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 550 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 551 | }; |
| 552 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 553 | /////////////////////////////////////////////////////////////////////////////// |
| 554 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 555 | class SkDistantLight : public SkLight { |
| 556 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 557 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 558 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 559 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 560 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 561 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 562 | return fDirection; |
| 563 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 564 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 565 | virtual LightType type() const { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 566 | const SkPoint3& direction() const { return fDirection; } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 567 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
| 568 | #if SK_SUPPORT_GPU |
| 569 | return SkNEW(GrGLDistantLight); |
| 570 | #else |
| 571 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 572 | return NULL; |
| 573 | #endif |
| 574 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 575 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return false; } |
| 576 | |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 577 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
| 578 | if (other.type() != kDistant_LightType) { |
| 579 | return false; |
| 580 | } |
| 581 | |
| 582 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 583 | return INHERITED::isEqual(other) && |
| 584 | fDirection == o.fDirection; |
| 585 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 586 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 587 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 588 | fDirection = readPoint3(buffer); |
| 589 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 590 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 591 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 592 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 593 | : INHERITED(color), fDirection(direction) { |
| 594 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 595 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 596 | return new SkDistantLight(direction(), color()); |
| 597 | } |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 598 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 599 | writePoint3(fDirection, buffer); |
| 600 | } |
| 601 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 602 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 603 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 604 | SkPoint3 fDirection; |
| 605 | }; |
| 606 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 607 | /////////////////////////////////////////////////////////////////////////////// |
| 608 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 609 | class SkPointLight : public SkLight { |
| 610 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 611 | SkPointLight(const SkPoint3& location, SkColor color) |
| 612 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 613 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 614 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 615 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 616 | fLocation.fY - SkIntToScalar(y), |
| 617 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 618 | direction.normalize(); |
| 619 | return direction; |
| 620 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 621 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 622 | virtual LightType type() const { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 623 | const SkPoint3& location() const { return fLocation; } |
| 624 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 625 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 626 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 627 | #else |
| 628 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 629 | return NULL; |
| 630 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 631 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 632 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 633 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 634 | if (other.type() != kPoint_LightType) { |
| 635 | return false; |
| 636 | } |
| 637 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 638 | return INHERITED::isEqual(other) && |
| 639 | fLocation == o.fLocation; |
| 640 | } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 641 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 642 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 643 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 644 | // Use X scale and Y scale on Z and average the result |
| 645 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 646 | matrix.mapVectors(&locationZ, 1); |
| 647 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 648 | return new SkPointLight(location, color()); |
| 649 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 650 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 651 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 652 | fLocation = readPoint3(buffer); |
| 653 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 654 | |
| 655 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 656 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 657 | : INHERITED(color), fLocation(location) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 658 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 659 | writePoint3(fLocation, buffer); |
| 660 | } |
| 661 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 662 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 663 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 664 | SkPoint3 fLocation; |
| 665 | }; |
| 666 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 667 | /////////////////////////////////////////////////////////////////////////////// |
| 668 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 669 | class SkSpotLight : public SkLight { |
| 670 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 671 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle, SkColor color) |
| 672 | : INHERITED(color), |
| 673 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 674 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 675 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 676 | { |
| 677 | fS = target - location; |
| 678 | fS.normalize(); |
| 679 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 680 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 681 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 682 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 683 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 684 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 685 | virtual SkLight* transform(const SkMatrix& matrix) const { |
| 686 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 687 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 688 | // Use X scale and Y scale on Z and average the result |
| 689 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 690 | matrix.mapVectors(&locationZ, 1); |
| 691 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 692 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 693 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 694 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 695 | matrix.mapVectors(&targetZ, 1); |
| 696 | SkPoint3 target(target2.fX, target2.fY, SkScalarAve(targetZ.fX, targetZ.fY)); |
| 697 | SkPoint3 s = target - location; |
| 698 | s.normalize(); |
| 699 | return new SkSpotLight(location, target, fSpecularExponent, fCosOuterConeAngle, fCosInnerConeAngle, fConeScale, s, color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 700 | } |
| 701 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 702 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 703 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 704 | fLocation.fY - SkIntToScalar(y), |
| 705 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 706 | direction.normalize(); |
| 707 | return direction; |
| 708 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 709 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 710 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 711 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 712 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 713 | } |
| 714 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 715 | if (cosAngle < fCosInnerConeAngle) { |
| 716 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 717 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 718 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 719 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 720 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 721 | virtual GrGLLight* createGLLight() const SK_OVERRIDE { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 722 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 723 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 724 | #else |
| 725 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 726 | return NULL; |
| 727 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 728 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 729 | virtual bool requiresFragmentPosition() const SK_OVERRIDE { return true; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 730 | virtual LightType type() const { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 731 | const SkPoint3& location() const { return fLocation; } |
| 732 | const SkPoint3& target() const { return fTarget; } |
| 733 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 734 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 735 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 736 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 737 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 738 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 739 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 740 | fLocation = readPoint3(buffer); |
| 741 | fTarget = readPoint3(buffer); |
| 742 | fSpecularExponent = buffer.readScalar(); |
| 743 | fCosOuterConeAngle = buffer.readScalar(); |
| 744 | fCosInnerConeAngle = buffer.readScalar(); |
| 745 | fConeScale = buffer.readScalar(); |
| 746 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 747 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 748 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 749 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 750 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 751 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 752 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 753 | SkSpotLight(const SkPoint3& location, const SkPoint3& target, SkScalar specularExponent, SkScalar cosOuterConeAngle, SkScalar cosInnerConeAngle, SkScalar coneScale, const SkPoint3& s, const SkPoint3& color) |
| 754 | : INHERITED(color), |
| 755 | fLocation(location), |
| 756 | fTarget(target), |
| 757 | fSpecularExponent(specularExponent), |
| 758 | fCosOuterConeAngle(cosOuterConeAngle), |
| 759 | fCosInnerConeAngle(cosInnerConeAngle), |
| 760 | fConeScale(coneScale), |
| 761 | fS(s) |
| 762 | { |
| 763 | } |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 764 | virtual void onFlattenLight(SkWriteBuffer& buffer) const SK_OVERRIDE { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 765 | writePoint3(fLocation, buffer); |
| 766 | writePoint3(fTarget, buffer); |
| 767 | buffer.writeScalar(fSpecularExponent); |
| 768 | buffer.writeScalar(fCosOuterConeAngle); |
| 769 | buffer.writeScalar(fCosInnerConeAngle); |
| 770 | buffer.writeScalar(fConeScale); |
| 771 | writePoint3(fS, buffer); |
| 772 | } |
| 773 | |
senorblanco@chromium.org | bd9fad6 | 2012-07-11 16:25:37 +0000 | [diff] [blame] | 774 | virtual bool isEqual(const SkLight& other) const SK_OVERRIDE { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 775 | if (other.type() != kSpot_LightType) { |
| 776 | return false; |
| 777 | } |
| 778 | |
| 779 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 780 | return INHERITED::isEqual(other) && |
| 781 | fLocation == o.fLocation && |
| 782 | fTarget == o.fTarget && |
| 783 | fSpecularExponent == o.fSpecularExponent && |
| 784 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 785 | } |
| 786 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 787 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 788 | static const SkScalar kSpecularExponentMin; |
| 789 | static const SkScalar kSpecularExponentMax; |
| 790 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 791 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 792 | SkPoint3 fLocation; |
| 793 | SkPoint3 fTarget; |
| 794 | SkScalar fSpecularExponent; |
| 795 | SkScalar fCosOuterConeAngle; |
| 796 | SkScalar fCosInnerConeAngle; |
| 797 | SkScalar fConeScale; |
| 798 | SkPoint3 fS; |
| 799 | }; |
| 800 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 801 | // According to the spec, the specular term should be in the range [1, 128] : |
| 802 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 803 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 804 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 805 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 806 | /////////////////////////////////////////////////////////////////////////////// |
| 807 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 808 | void SkLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 809 | // Write type first, then baseclass, then subclass. |
| 810 | buffer.writeInt(this->type()); |
| 811 | writePoint3(fColor, buffer); |
| 812 | this->onFlattenLight(buffer); |
| 813 | } |
| 814 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 815 | /*static*/ SkLight* SkLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 816 | // Read type first. |
| 817 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 818 | switch (type) { |
| 819 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 820 | // then subclass, same order as flattenLight. |
| 821 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 822 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 823 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 824 | default: |
| 825 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 826 | buffer.validate(false); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 827 | return NULL; |
| 828 | } |
| 829 | } |
| 830 | /////////////////////////////////////////////////////////////////////////////// |
| 831 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 832 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkImageFilter* input, const CropRect* cropRect) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 833 | : INHERITED(input, cropRect), |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 834 | fLight(light), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 835 | fSurfaceScale(SkScalarDiv(surfaceScale, SkIntToScalar(255))) |
| 836 | { |
| 837 | SkASSERT(fLight); |
reed@google.com | 51f3866 | 2012-06-27 14:24:29 +0000 | [diff] [blame] | 838 | // our caller knows that we take ownership of the light, so we don't |
| 839 | // need to call ref() here. |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 840 | } |
| 841 | |
| 842 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 843 | const SkPoint3& direction, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 844 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 845 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 846 | (SkNEW_ARGS(SkDistantLight, (direction, lightColor)), surfaceScale, kd, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 847 | input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 848 | } |
| 849 | |
| 850 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 851 | const SkPoint3& location, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 852 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 853 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 854 | (SkNEW_ARGS(SkPointLight, (location, lightColor)), surfaceScale, kd, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 855 | input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 856 | } |
| 857 | |
| 858 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 859 | const SkPoint3& location, const SkPoint3& target, |
| 860 | SkScalar specularExponent, SkScalar cutoffAngle, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 861 | SkColor lightColor, SkScalar surfaceScale, SkScalar kd, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 862 | SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 863 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 864 | (SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 865 | cutoffAngle, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 866 | surfaceScale, kd, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 870 | const SkPoint3& direction, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 871 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 872 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 873 | (SkNEW_ARGS(SkDistantLight, (direction, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 874 | surfaceScale, ks, shininess, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 875 | } |
| 876 | |
| 877 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 878 | const SkPoint3& location, SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 879 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 880 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco@chromium.org | 254eae2 | 2012-10-05 17:38:00 +0000 | [diff] [blame] | 881 | (SkNEW_ARGS(SkPointLight, (location, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 882 | surfaceScale, ks, shininess, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 883 | } |
| 884 | |
| 885 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular( |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 886 | const SkPoint3& location, const SkPoint3& target, |
| 887 | SkScalar specularExponent, SkScalar cutoffAngle, |
| 888 | SkColor lightColor, SkScalar surfaceScale, |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 889 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 890 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
| 891 | (SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, cutoffAngle, lightColor)), |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 892 | surfaceScale, ks, shininess, input, cropRect)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 893 | } |
| 894 | |
| 895 | SkLightingImageFilter::~SkLightingImageFilter() { |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 896 | SkSafeUnref(fLight); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 897 | } |
| 898 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 899 | SkLightingImageFilter::SkLightingImageFilter(SkReadBuffer& buffer) |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 900 | : INHERITED(1, buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 901 | fLight = SkLight::UnflattenLight(buffer); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 902 | fSurfaceScale = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 903 | buffer.validate(SkScalarIsFinite(fSurfaceScale)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 904 | } |
| 905 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 906 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 907 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 908 | fLight->flattenLight(buffer); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 909 | buffer.writeScalar(fSurfaceScale); |
| 910 | } |
| 911 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 912 | /////////////////////////////////////////////////////////////////////////////// |
| 913 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 914 | 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] | 915 | : SkLightingImageFilter(light, surfaceScale, input, cropRect), |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 916 | // According to the spec, kd can be any non-negative number : |
| 917 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
| 918 | fKD(kd < 0 ? 0 : kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 919 | { |
| 920 | } |
| 921 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 922 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkReadBuffer& buffer) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 923 | : INHERITED(buffer) |
| 924 | { |
| 925 | fKD = buffer.readScalar(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 926 | buffer.validate(SkScalarIsFinite(fKD) && (fKD >= 0)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 927 | } |
| 928 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 929 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 930 | this->INHERITED::flatten(buffer); |
| 931 | buffer.writeScalar(fKD); |
| 932 | } |
| 933 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 934 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 935 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 936 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 937 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 938 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 939 | SkImageFilter* input = getInput(0); |
| 940 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 941 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 942 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 943 | return false; |
| 944 | } |
| 945 | |
commit-bot@chromium.org | 149e9a1 | 2014-04-09 20:45:29 +0000 | [diff] [blame^] | 946 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 947 | return false; |
| 948 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 949 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 950 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 951 | return false; |
| 952 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 953 | |
| 954 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 955 | return false; |
| 956 | } |
| 957 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 958 | SkAutoLockPixels alp(src); |
| 959 | if (!src.getPixels()) { |
| 960 | return false; |
| 961 | } |
| 962 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 963 | dst->setConfig(src.config(), bounds.width(), bounds.height()); |
reed@google.com | 9ebcac5 | 2014-01-24 18:53:42 +0000 | [diff] [blame] | 964 | if (!dst->allocPixels()) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 965 | return false; |
| 966 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 967 | |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 968 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 969 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 970 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 971 | offset->fX = bounds.left(); |
| 972 | offset->fY = bounds.top(); |
| 973 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 974 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 975 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 976 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 977 | break; |
| 978 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 979 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 980 | break; |
| 981 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 982 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 983 | break; |
| 984 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 985 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 986 | return true; |
| 987 | } |
| 988 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 989 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 7938bae | 2013-10-18 20:08:14 +0000 | [diff] [blame] | 990 | bool SkDiffuseLightingImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkMatrix& matrix, const SkIRect&) const { |
bsalomon@google.com | 021fc73 | 2012-10-25 12:47:42 +0000 | [diff] [blame] | 991 | if (effect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 992 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 993 | *effect = GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 994 | } |
| 995 | return true; |
| 996 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 997 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 998 | |
| 999 | /////////////////////////////////////////////////////////////////////////////// |
| 1000 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame] | 1001 | 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] | 1002 | : SkLightingImageFilter(light, surfaceScale, input, cropRect), |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1003 | // According to the spec, ks can be any non-negative number : |
| 1004 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
| 1005 | fKS(ks < 0 ? 0 : ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1006 | fShininess(shininess) |
| 1007 | { |
| 1008 | } |
| 1009 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1010 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkReadBuffer& buffer) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1011 | : INHERITED(buffer) |
| 1012 | { |
| 1013 | fKS = buffer.readScalar(); |
| 1014 | fShininess = buffer.readScalar(); |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1015 | buffer.validate(SkScalarIsFinite(fKS) && (fKS >= 0) && |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 1016 | SkScalarIsFinite(fShininess)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1017 | } |
| 1018 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1019 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1020 | this->INHERITED::flatten(buffer); |
| 1021 | buffer.writeScalar(fKS); |
| 1022 | buffer.writeScalar(fShininess); |
| 1023 | } |
| 1024 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1025 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1026 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1027 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1028 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1029 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1030 | SkImageFilter* input = getInput(0); |
| 1031 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1032 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1033 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1034 | return false; |
| 1035 | } |
| 1036 | |
commit-bot@chromium.org | 149e9a1 | 2014-04-09 20:45:29 +0000 | [diff] [blame^] | 1037 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1038 | return false; |
| 1039 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1040 | |
| 1041 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1042 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1043 | return false; |
| 1044 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1045 | |
| 1046 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1047 | return false; |
| 1048 | } |
| 1049 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1050 | SkAutoLockPixels alp(src); |
| 1051 | if (!src.getPixels()) { |
| 1052 | return false; |
| 1053 | } |
| 1054 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1055 | dst->setConfig(src.config(), bounds.width(), bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1056 | dst->allocPixels(); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1057 | if (!dst->getPixels()) { |
| 1058 | return false; |
| 1059 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1060 | |
| 1061 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1062 | offset->fX = bounds.left(); |
| 1063 | offset->fY = bounds.top(); |
| 1064 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1065 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1066 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1067 | case SkLight::kDistant_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1068 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1069 | break; |
| 1070 | case SkLight::kPoint_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1071 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1072 | break; |
| 1073 | case SkLight::kSpot_LightType: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1074 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, transformedLight, src, dst, surfaceScale(), bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1075 | break; |
| 1076 | } |
| 1077 | return true; |
| 1078 | } |
| 1079 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1080 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 7938bae | 2013-10-18 20:08:14 +0000 | [diff] [blame] | 1081 | bool SkSpecularLightingImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkMatrix& matrix, const SkIRect&) const { |
bsalomon@google.com | 021fc73 | 2012-10-25 12:47:42 +0000 | [diff] [blame] | 1082 | if (effect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1083 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1084 | *effect = GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1085 | } |
| 1086 | return true; |
| 1087 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1088 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1089 | |
| 1090 | /////////////////////////////////////////////////////////////////////////////// |
| 1091 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1092 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1093 | |
| 1094 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1095 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1096 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1097 | SkScalarToFloat(random->nextSScalar1()), |
| 1098 | SkScalarToFloat(random->nextSScalar1())); |
| 1099 | } |
| 1100 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1101 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1102 | int type = random->nextULessThan(3); |
| 1103 | switch (type) { |
| 1104 | case 0: { |
| 1105 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1106 | } |
| 1107 | case 1: { |
| 1108 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1109 | } |
| 1110 | case 2: { |
| 1111 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1112 | random_point3(random), |
| 1113 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1114 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1115 | random->nextU())); |
| 1116 | } |
| 1117 | default: |
| 1118 | GrCrash(); |
| 1119 | return NULL; |
| 1120 | } |
| 1121 | } |
| 1122 | |
| 1123 | } |
| 1124 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1125 | class GrGLLightingEffect : public GrGLEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1126 | public: |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1127 | GrGLLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1128 | const GrDrawEffect& effect); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1129 | virtual ~GrGLLightingEffect(); |
| 1130 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1131 | virtual void emitCode(GrGLShaderBuilder*, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1132 | const GrDrawEffect&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1133 | EffectKey, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1134 | const char* outputColor, |
| 1135 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1136 | const TransformedCoordsArray&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1137 | const TextureSamplerArray&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1138 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1139 | static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1140 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1141 | /** |
| 1142 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1143 | */ |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1144 | virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1145 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1146 | protected: |
| 1147 | virtual void emitLightFunc(GrGLShaderBuilder*, SkString* funcName) = 0; |
| 1148 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1149 | private: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1150 | typedef GrGLEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1151 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1152 | UniformHandle fImageIncrementUni; |
| 1153 | UniformHandle fSurfaceScaleUni; |
| 1154 | GrGLLight* fLight; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1155 | }; |
| 1156 | |
| 1157 | /////////////////////////////////////////////////////////////////////////////// |
| 1158 | |
| 1159 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1160 | public: |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1161 | GrGLDiffuseLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1162 | const GrDrawEffect& drawEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1163 | virtual void emitLightFunc(GrGLShaderBuilder*, SkString* funcName) SK_OVERRIDE; |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1164 | virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1165 | |
| 1166 | private: |
| 1167 | typedef GrGLLightingEffect INHERITED; |
| 1168 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1169 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1170 | }; |
| 1171 | |
| 1172 | /////////////////////////////////////////////////////////////////////////////// |
| 1173 | |
| 1174 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1175 | public: |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1176 | GrGLSpecularLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1177 | const GrDrawEffect& effect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1178 | virtual void emitLightFunc(GrGLShaderBuilder*, SkString* funcName) SK_OVERRIDE; |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1179 | virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1180 | |
| 1181 | private: |
| 1182 | typedef GrGLLightingEffect INHERITED; |
| 1183 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1184 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1185 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1186 | }; |
| 1187 | |
| 1188 | /////////////////////////////////////////////////////////////////////////////// |
| 1189 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1190 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1191 | const SkLight* light, |
| 1192 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1193 | const SkMatrix& matrix) |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1194 | : INHERITED(texture, MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1195 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1196 | , fSurfaceScale(surfaceScale) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1197 | , fFilterMatrix(matrix) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1198 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1199 | if (light->requiresFragmentPosition()) { |
| 1200 | this->setWillReadFragmentPosition(); |
| 1201 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1202 | } |
| 1203 | |
| 1204 | GrLightingEffect::~GrLightingEffect() { |
| 1205 | fLight->unref(); |
| 1206 | } |
| 1207 | |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 1208 | bool GrLightingEffect::onIsEqual(const GrEffect& sBase) const { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 1209 | const GrLightingEffect& s = CastEffect<GrLightingEffect>(sBase); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1210 | return this->texture(0) == s.texture(0) && |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1211 | fLight->isEqual(*s.fLight) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1212 | fSurfaceScale == s.fSurfaceScale; |
| 1213 | } |
| 1214 | |
| 1215 | /////////////////////////////////////////////////////////////////////////////// |
| 1216 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1217 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1218 | const SkLight* light, |
| 1219 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1220 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1221 | SkScalar kd) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1222 | : INHERITED(texture, light, surfaceScale, matrix), fKD(kd) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1223 | } |
| 1224 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1225 | const GrBackendEffectFactory& GrDiffuseLightingEffect::getFactory() const { |
| 1226 | return GrTBackendEffectFactory<GrDiffuseLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1227 | } |
| 1228 | |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 1229 | bool GrDiffuseLightingEffect::onIsEqual(const GrEffect& sBase) const { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 1230 | const GrDiffuseLightingEffect& s = CastEffect<GrDiffuseLightingEffect>(sBase); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1231 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1232 | this->kd() == s.kd(); |
| 1233 | } |
| 1234 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 1235 | GR_DEFINE_EFFECT_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1236 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1237 | GrEffectRef* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1238 | GrContext* context, |
bsalomon@google.com | c26d94f | 2013-03-25 18:19:00 +0000 | [diff] [blame] | 1239 | const GrDrawTargetCaps&, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1240 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1241 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1242 | SkScalar kd = random->nextUScalar1(); |
| 1243 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1244 | SkMatrix matrix; |
| 1245 | for (int i = 0; i < 9; i++) { |
| 1246 | matrix[i] = random->nextUScalar1(); |
| 1247 | } |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1248 | return GrDiffuseLightingEffect::Create(textures[GrEffectUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1249 | light, surfaceScale, matrix, kd); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1250 | } |
| 1251 | |
| 1252 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1253 | /////////////////////////////////////////////////////////////////////////////// |
| 1254 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1255 | GrGLLightingEffect::GrGLLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1256 | const GrDrawEffect& drawEffect) |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1257 | : INHERITED(factory) { |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1258 | const GrLightingEffect& m = drawEffect.castEffect<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1259 | fLight = m.light()->createGLLight(); |
| 1260 | } |
| 1261 | |
| 1262 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1263 | delete fLight; |
| 1264 | } |
| 1265 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1266 | void GrGLLightingEffect::emitCode(GrGLShaderBuilder* builder, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1267 | const GrDrawEffect&, |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1268 | EffectKey key, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1269 | const char* outputColor, |
| 1270 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1271 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1272 | const TextureSamplerArray& samplers) { |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1273 | SkString coords2D = builder->ensureFSCoords2D(coords, 0); |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1274 | |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1275 | fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1276 | kVec2f_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1277 | "ImageIncrement"); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1278 | fSurfaceScaleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1279 | kFloat_GrSLType, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1280 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1281 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1282 | SkString lightFunc; |
| 1283 | this->emitLightFunc(builder, &lightFunc); |
| 1284 | static const GrGLShaderVar gSobelArgs[] = { |
| 1285 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1286 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1287 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1288 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1289 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1290 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1291 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1292 | }; |
| 1293 | SkString sobelFuncName; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1294 | builder->fsEmitFunction(kFloat_GrSLType, |
| 1295 | "sobel", |
| 1296 | SK_ARRAY_COUNT(gSobelArgs), |
| 1297 | gSobelArgs, |
| 1298 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1299 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1300 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1301 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1302 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1303 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1304 | }; |
| 1305 | SkString pointToNormalName; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1306 | builder->fsEmitFunction(kVec3f_GrSLType, |
| 1307 | "pointToNormal", |
| 1308 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1309 | gPointToNormalArgs, |
| 1310 | "\treturn normalize(vec3(-x * scale, y * scale, 1));\n", |
| 1311 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1312 | |
| 1313 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1314 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1315 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1316 | }; |
| 1317 | SkString interiorNormalBody; |
| 1318 | interiorNormalBody.appendf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], 0.25),\n" |
| 1319 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], 0.25),\n" |
| 1320 | "\t surfaceScale);\n", |
| 1321 | pointToNormalName.c_str(), |
| 1322 | sobelFuncName.c_str(), |
| 1323 | sobelFuncName.c_str()); |
| 1324 | SkString interiorNormalName; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1325 | builder->fsEmitFunction(kVec3f_GrSLType, |
| 1326 | "interiorNormal", |
| 1327 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1328 | gInteriorNormalArgs, |
| 1329 | interiorNormalBody.c_str(), |
| 1330 | &interiorNormalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1331 | |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1332 | builder->fsCodeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1333 | builder->fsCodeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1334 | |
| 1335 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1336 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1337 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1338 | int index = 0; |
| 1339 | for (int dy = -1; dy <= 1; dy++) { |
| 1340 | for (int dx = -1; dx <= 1; dx++) { |
| 1341 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1342 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1343 | builder->fsCodeAppendf("\t\tm[%d] = ", index++); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1344 | builder->fsAppendTextureLookup(samplers[0], texCoords.c_str()); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1345 | builder->fsCodeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1346 | } |
| 1347 | } |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1348 | builder->fsCodeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1349 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1350 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1351 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
| 1352 | builder->fsCodeAppend(";\n"); |
| 1353 | builder->fsCodeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
| 1354 | outputColor, lightFunc.c_str(), interiorNormalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1355 | fLight->emitLightColor(builder, "surfaceToLight"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1356 | builder->fsCodeAppend(");\n"); |
| 1357 | SkString modulate; |
| 1358 | GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); |
| 1359 | builder->fsCodeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1360 | } |
| 1361 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1362 | GrGLEffect::EffectKey GrGLLightingEffect::GenKey(const GrDrawEffect& drawEffect, |
bsalomon@google.com | 2eaaefd | 2012-10-29 19:51:22 +0000 | [diff] [blame] | 1363 | const GrGLCaps& caps) { |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1364 | return drawEffect.castEffect<GrLightingEffect>().light()->type(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1365 | } |
| 1366 | |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1367 | void GrGLLightingEffect::setData(const GrGLUniformManager& uman, |
| 1368 | const GrDrawEffect& drawEffect) { |
| 1369 | const GrLightingEffect& lighting = drawEffect.castEffect<GrLightingEffect>(); |
| 1370 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1371 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1372 | uman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1373 | uman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1374 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
| 1375 | fLight->setData(uman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1376 | } |
| 1377 | |
| 1378 | /////////////////////////////////////////////////////////////////////////////// |
| 1379 | |
| 1380 | /////////////////////////////////////////////////////////////////////////////// |
| 1381 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1382 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1383 | const GrDrawEffect& drawEffect) |
commit-bot@chromium.org | 7425c12 | 2013-08-14 18:14:19 +0000 | [diff] [blame] | 1384 | : INHERITED(factory, drawEffect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1385 | } |
| 1386 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1387 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLShaderBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1388 | const char* kd; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1389 | fKDUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1390 | kFloat_GrSLType, |
| 1391 | "KD", |
| 1392 | &kd); |
| 1393 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1394 | static const GrGLShaderVar gLightArgs[] = { |
| 1395 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1396 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1397 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1398 | }; |
| 1399 | SkString lightBody; |
| 1400 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1401 | 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] | 1402 | builder->fsEmitFunction(kVec4f_GrSLType, |
| 1403 | "light", |
| 1404 | SK_ARRAY_COUNT(gLightArgs), |
| 1405 | gLightArgs, |
| 1406 | lightBody.c_str(), |
| 1407 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1408 | } |
| 1409 | |
bsalomon@google.com | 28a15fb | 2012-10-26 17:53:18 +0000 | [diff] [blame] | 1410 | void GrGLDiffuseLightingEffect::setData(const GrGLUniformManager& uman, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1411 | const GrDrawEffect& drawEffect) { |
| 1412 | INHERITED::setData(uman, drawEffect); |
| 1413 | const GrDiffuseLightingEffect& diffuse = drawEffect.castEffect<GrDiffuseLightingEffect>(); |
| 1414 | uman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1415 | } |
| 1416 | |
| 1417 | /////////////////////////////////////////////////////////////////////////////// |
| 1418 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1419 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1420 | const SkLight* light, |
| 1421 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1422 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1423 | SkScalar ks, |
| 1424 | SkScalar shininess) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1425 | : INHERITED(texture, light, surfaceScale, matrix), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1426 | fKS(ks), |
| 1427 | fShininess(shininess) { |
| 1428 | } |
| 1429 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1430 | const GrBackendEffectFactory& GrSpecularLightingEffect::getFactory() const { |
| 1431 | return GrTBackendEffectFactory<GrSpecularLightingEffect>::getInstance(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1432 | } |
| 1433 | |
bsalomon@google.com | 8a252f7 | 2013-01-22 20:35:13 +0000 | [diff] [blame] | 1434 | bool GrSpecularLightingEffect::onIsEqual(const GrEffect& sBase) const { |
bsalomon@google.com | 6340a41 | 2013-01-22 19:55:59 +0000 | [diff] [blame] | 1435 | const GrSpecularLightingEffect& s = CastEffect<GrSpecularLightingEffect>(sBase); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1436 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1437 | this->ks() == s.ks() && |
| 1438 | this->shininess() == s.shininess(); |
| 1439 | } |
| 1440 | |
bsalomon@google.com | f271cc7 | 2012-10-24 19:35:13 +0000 | [diff] [blame] | 1441 | GR_DEFINE_EFFECT_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1442 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1443 | GrEffectRef* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1444 | GrContext* context, |
bsalomon@google.com | c26d94f | 2013-03-25 18:19:00 +0000 | [diff] [blame] | 1445 | const GrDrawTargetCaps&, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1446 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1447 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1448 | SkScalar ks = random->nextUScalar1(); |
| 1449 | SkScalar shininess = random->nextUScalar1(); |
| 1450 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1451 | SkMatrix matrix; |
| 1452 | for (int i = 0; i < 9; i++) { |
| 1453 | matrix[i] = random->nextUScalar1(); |
| 1454 | } |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 1455 | return GrSpecularLightingEffect::Create(textures[GrEffectUnitTest::kAlphaTextureIdx], |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1456 | light, surfaceScale, matrix, ks, shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1457 | } |
| 1458 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1459 | /////////////////////////////////////////////////////////////////////////////// |
| 1460 | |
bsalomon@google.com | 396e61f | 2012-10-25 19:00:29 +0000 | [diff] [blame] | 1461 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrBackendEffectFactory& factory, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1462 | const GrDrawEffect& drawEffect) |
commit-bot@chromium.org | 7425c12 | 2013-08-14 18:14:19 +0000 | [diff] [blame] | 1463 | : INHERITED(factory, drawEffect) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1464 | } |
| 1465 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1466 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLShaderBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1467 | const char* ks; |
| 1468 | const char* shininess; |
| 1469 | |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1470 | fKSUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1471 | kFloat_GrSLType, "KS", &ks); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1472 | fShininessUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1473 | kFloat_GrSLType, "Shininess", &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1474 | |
| 1475 | static const GrGLShaderVar gLightArgs[] = { |
| 1476 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1477 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1478 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1479 | }; |
| 1480 | SkString lightBody; |
| 1481 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1482 | 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] | 1483 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1484 | 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] | 1485 | builder->fsEmitFunction(kVec4f_GrSLType, |
| 1486 | "light", |
| 1487 | SK_ARRAY_COUNT(gLightArgs), |
| 1488 | gLightArgs, |
| 1489 | lightBody.c_str(), |
| 1490 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1491 | } |
| 1492 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1493 | void GrGLSpecularLightingEffect::setData(const GrGLUniformManager& uman, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1494 | const GrDrawEffect& drawEffect) { |
| 1495 | INHERITED::setData(uman, drawEffect); |
| 1496 | const GrSpecularLightingEffect& spec = drawEffect.castEffect<GrSpecularLightingEffect>(); |
| 1497 | uman.set1f(fKSUni, spec.ks()); |
| 1498 | uman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1499 | } |
| 1500 | |
| 1501 | /////////////////////////////////////////////////////////////////////////////// |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1502 | void GrGLLight::emitLightColorUniform(GrGLShaderBuilder* builder) { |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1503 | fColorUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1504 | kVec3f_GrSLType, "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1505 | } |
| 1506 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1507 | void GrGLLight::emitLightColor(GrGLShaderBuilder* builder, |
| 1508 | const char *surfaceToLight) { |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1509 | builder->fsCodeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1510 | } |
| 1511 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1512 | void GrGLLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1513 | const SkLight* light) const { |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1514 | setUniformPoint3(uman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1515 | } |
| 1516 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1517 | /////////////////////////////////////////////////////////////////////////////// |
| 1518 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1519 | void GrGLDistantLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1520 | const SkLight* light) const { |
| 1521 | INHERITED::setData(uman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1522 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1523 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1524 | setUniformNormal3(uman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1525 | } |
| 1526 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1527 | void GrGLDistantLight::emitSurfaceToLight(GrGLShaderBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1528 | const char* dir; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1529 | fDirectionUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1530 | "LightDirection", &dir); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1531 | builder->fsCodeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1532 | } |
| 1533 | |
| 1534 | /////////////////////////////////////////////////////////////////////////////// |
| 1535 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1536 | void GrGLPointLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1537 | const SkLight* light) const { |
| 1538 | INHERITED::setData(uman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1539 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1540 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1541 | setUniformPoint3(uman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1542 | } |
| 1543 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1544 | void GrGLPointLight::emitSurfaceToLight(GrGLShaderBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1545 | const char* loc; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1546 | fLocationUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, kVec3f_GrSLType, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1547 | "LightLocation", &loc); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1548 | 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] | 1549 | } |
| 1550 | |
| 1551 | /////////////////////////////////////////////////////////////////////////////// |
| 1552 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1553 | void GrGLSpotLight::setData(const GrGLUniformManager& uman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1554 | const SkLight* light) const { |
| 1555 | INHERITED::setData(uman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1556 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1557 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1558 | setUniformPoint3(uman, fLocationUni, spotLight->location()); |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 1559 | uman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1560 | uman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1561 | uman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1562 | uman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1563 | setUniformNormal3(uman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1564 | } |
| 1565 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1566 | void GrGLSpotLight::emitSurfaceToLight(GrGLShaderBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1567 | const char* location; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1568 | fLocationUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1569 | kVec3f_GrSLType, "LightLocation", &location); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1570 | builder->fsCodeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1571 | location, builder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1572 | } |
| 1573 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1574 | void GrGLSpotLight::emitLightColor(GrGLShaderBuilder* builder, |
| 1575 | const char *surfaceToLight) { |
| 1576 | |
| 1577 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1578 | |
| 1579 | const char* exponent; |
| 1580 | const char* cosInner; |
| 1581 | const char* cosOuter; |
| 1582 | const char* coneScale; |
| 1583 | const char* s; |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1584 | fExponentUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1585 | kFloat_GrSLType, "Exponent", &exponent); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1586 | fCosInnerConeAngleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1587 | kFloat_GrSLType, "CosInnerConeAngle", &cosInner); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1588 | fCosOuterConeAngleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1589 | kFloat_GrSLType, "CosOuterConeAngle", &cosOuter); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1590 | fConeScaleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1591 | kFloat_GrSLType, "ConeScale", &coneScale); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1592 | fSUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1593 | kVec3f_GrSLType, "S", &s); |
| 1594 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1595 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1596 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1597 | }; |
| 1598 | SkString lightColorBody; |
| 1599 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1600 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1601 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1602 | lightColorBody.appendf("\t}\n"); |
| 1603 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1604 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1605 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1606 | color, cosOuter, coneScale); |
| 1607 | lightColorBody.appendf("\t}\n"); |
| 1608 | lightColorBody.appendf("\treturn %s;\n", color); |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1609 | builder->fsEmitFunction(kVec3f_GrSLType, |
| 1610 | "lightColor", |
| 1611 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1612 | gLightColorArgs, |
| 1613 | lightColorBody.c_str(), |
| 1614 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1615 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1616 | builder->fsCodeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1617 | } |
| 1618 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1619 | #endif |
| 1620 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1621 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 1622 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 1623 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1624 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |