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 |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 18 | #include "GrFragmentProcessor.h" |
| 19 | #include "GrInvariantOutput.h" |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 20 | #include "effects/GrSingleTextureEffect.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 21 | #include "gl/GrGLProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 22 | #include "gl/builders/GrGLProgramBuilder.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 23 | |
| 24 | class GrGLDiffuseLightingEffect; |
| 25 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 26 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 27 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 28 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 29 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 30 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 31 | namespace { |
| 32 | |
| 33 | const SkScalar gOneThird = SkScalarInvert(SkIntToScalar(3)); |
| 34 | const SkScalar gTwoThirds = SkScalarDiv(SkIntToScalar(2), SkIntToScalar(3)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 35 | const SkScalar gOneHalf = 0.5f; |
| 36 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 37 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 38 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 39 | void setUniformPoint3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 40 | const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 41 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 42 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 43 | } |
| 44 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 45 | void setUniformNormal3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 46 | const SkPoint3& point) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 47 | setUniformPoint3(pdman, uni, SkPoint3(point.fX, point.fY, point.fZ)); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 48 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 49 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 50 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 51 | // Shift matrix components to the left, as we advance pixels to the right. |
| 52 | inline void shiftMatrixLeft(int m[9]) { |
| 53 | m[0] = m[1]; |
| 54 | m[3] = m[4]; |
| 55 | m[6] = m[7]; |
| 56 | m[1] = m[2]; |
| 57 | m[4] = m[5]; |
| 58 | m[7] = m[8]; |
| 59 | } |
| 60 | |
| 61 | class DiffuseLightingType { |
| 62 | public: |
| 63 | DiffuseLightingType(SkScalar kd) |
| 64 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 65 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 66 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 67 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 68 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 69 | SkPoint3 color(lightColor * colorScale); |
| 70 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 71 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 72 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 73 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 74 | } |
| 75 | private: |
| 76 | SkScalar fKD; |
| 77 | }; |
| 78 | |
| 79 | class SpecularLightingType { |
| 80 | public: |
| 81 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 82 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 83 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 84 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 85 | SkPoint3 halfDir(surfaceTolight); |
| 86 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
| 87 | halfDir.normalize(); |
| 88 | SkScalar colorScale = SkScalarMul(fKS, |
| 89 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 90 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 91 | SkPoint3 color(lightColor * colorScale); |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 92 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(color.maxComponent()), 255), |
| 93 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 94 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 95 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 96 | } |
| 97 | private: |
| 98 | SkScalar fKS; |
| 99 | SkScalar fShininess; |
| 100 | }; |
| 101 | |
| 102 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 103 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 104 | } |
| 105 | |
| 106 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
| 107 | SkPoint3 vector(SkScalarMul(-x, surfaceScale), |
| 108 | SkScalarMul(-y, surfaceScale), |
| 109 | SK_Scalar1); |
| 110 | vector.normalize(); |
| 111 | return vector; |
| 112 | } |
| 113 | |
| 114 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 115 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 116 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 117 | surfaceScale); |
| 118 | } |
| 119 | |
| 120 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 121 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 122 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 123 | surfaceScale); |
| 124 | } |
| 125 | |
| 126 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 127 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 128 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 129 | surfaceScale); |
| 130 | } |
| 131 | |
| 132 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 133 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 134 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 135 | surfaceScale); |
| 136 | } |
| 137 | |
| 138 | |
| 139 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 140 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 141 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 142 | surfaceScale); |
| 143 | } |
| 144 | |
| 145 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 146 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 147 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 148 | surfaceScale); |
| 149 | } |
| 150 | |
| 151 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 152 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 153 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 154 | surfaceScale); |
| 155 | } |
| 156 | |
| 157 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 158 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 159 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 160 | surfaceScale); |
| 161 | } |
| 162 | |
| 163 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 164 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 165 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 166 | surfaceScale); |
| 167 | } |
| 168 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 169 | template <class LightingType, class LightType> void lightBitmap( |
| 170 | const LightingType& lightingType, const SkLight* light, const SkBitmap& src, SkBitmap* dst, |
| 171 | SkScalar surfaceScale, const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 172 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 173 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 174 | int left = bounds.left(), right = bounds.right(); |
| 175 | int bottom = bounds.bottom(); |
| 176 | int y = bounds.top(); |
| 177 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 178 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 179 | int x = left; |
| 180 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 181 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 182 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 183 | m[4] = SkGetPackedA32(*row1++); |
| 184 | m[5] = SkGetPackedA32(*row1++); |
| 185 | m[7] = SkGetPackedA32(*row2++); |
| 186 | m[8] = SkGetPackedA32(*row2++); |
| 187 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 188 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 189 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 190 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 191 | { |
| 192 | shiftMatrixLeft(m); |
| 193 | m[5] = SkGetPackedA32(*row1++); |
| 194 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 195 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 196 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 197 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 198 | } |
| 199 | shiftMatrixLeft(m); |
| 200 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 201 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 202 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 203 | } |
| 204 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 205 | for (++y; y < bottom - 1; ++y) { |
| 206 | int x = left; |
| 207 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 208 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 209 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 210 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 211 | m[1] = SkGetPackedA32(*row0++); |
| 212 | m[2] = SkGetPackedA32(*row0++); |
| 213 | m[4] = SkGetPackedA32(*row1++); |
| 214 | m[5] = SkGetPackedA32(*row1++); |
| 215 | m[7] = SkGetPackedA32(*row2++); |
| 216 | m[8] = SkGetPackedA32(*row2++); |
| 217 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 218 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 219 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 220 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 221 | shiftMatrixLeft(m); |
| 222 | m[2] = SkGetPackedA32(*row0++); |
| 223 | m[5] = SkGetPackedA32(*row1++); |
| 224 | m[8] = SkGetPackedA32(*row2++); |
| 225 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 226 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 227 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 228 | } |
| 229 | shiftMatrixLeft(m); |
| 230 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 231 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 232 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 236 | int x = left; |
| 237 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 238 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 239 | int m[9]; |
| 240 | m[1] = SkGetPackedA32(*row0++); |
| 241 | m[2] = SkGetPackedA32(*row0++); |
| 242 | m[4] = SkGetPackedA32(*row1++); |
| 243 | m[5] = SkGetPackedA32(*row1++); |
| 244 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 245 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 246 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 247 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 248 | { |
| 249 | shiftMatrixLeft(m); |
| 250 | m[2] = SkGetPackedA32(*row0++); |
| 251 | m[5] = SkGetPackedA32(*row1++); |
| 252 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 253 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 254 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 255 | } |
| 256 | shiftMatrixLeft(m); |
| 257 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 258 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 259 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 260 | } |
| 261 | } |
| 262 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 263 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 264 | SkPoint3 point; |
| 265 | point.fX = buffer.readScalar(); |
| 266 | point.fY = buffer.readScalar(); |
| 267 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 268 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 269 | SkScalarIsFinite(point.fY) && |
| 270 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 271 | return point; |
| 272 | }; |
| 273 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 274 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 275 | buffer.writeScalar(point.fX); |
| 276 | buffer.writeScalar(point.fY); |
| 277 | buffer.writeScalar(point.fZ); |
| 278 | }; |
| 279 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 280 | enum BoundaryMode { |
| 281 | kTopLeft_BoundaryMode, |
| 282 | kTop_BoundaryMode, |
| 283 | kTopRight_BoundaryMode, |
| 284 | kLeft_BoundaryMode, |
| 285 | kInterior_BoundaryMode, |
| 286 | kRight_BoundaryMode, |
| 287 | kBottomLeft_BoundaryMode, |
| 288 | kBottom_BoundaryMode, |
| 289 | kBottomRight_BoundaryMode, |
| 290 | |
| 291 | kBoundaryModeCount, |
| 292 | }; |
| 293 | |
| 294 | class SkLightingImageFilterInternal : public SkLightingImageFilter { |
| 295 | protected: |
| 296 | SkLightingImageFilterInternal(SkLight* light, |
| 297 | SkScalar surfaceScale, |
| 298 | SkImageFilter* input, |
| 299 | const CropRect* cropRect) |
| 300 | : INHERITED(light, surfaceScale, input, cropRect) {} |
| 301 | |
| 302 | #if SK_SUPPORT_GPU |
| 303 | bool canFilterImageGPU() const override { return true; } |
| 304 | bool filterImageGPU(Proxy*, const SkBitmap& src, const Context&, |
| 305 | SkBitmap* result, SkIPoint* offset) const override; |
| 306 | virtual GrFragmentProcessor* getFragmentProcessor(GrTexture*, |
| 307 | const SkMatrix&, |
| 308 | const SkIRect& bounds, |
| 309 | BoundaryMode boundaryMode) const = 0; |
| 310 | #endif |
| 311 | private: |
| 312 | #if SK_SUPPORT_GPU |
| 313 | void drawRect(GrContext* context, |
| 314 | GrTexture* src, |
| 315 | GrTexture* dst, |
| 316 | const SkMatrix& matrix, |
| 317 | const GrClip& clip, |
| 318 | const SkRect& dstRect, |
| 319 | BoundaryMode boundaryMode, |
| 320 | const SkIRect& bounds) const; |
| 321 | #endif |
| 322 | typedef SkLightingImageFilter INHERITED; |
| 323 | }; |
| 324 | |
| 325 | #if SK_SUPPORT_GPU |
| 326 | void SkLightingImageFilterInternal::drawRect(GrContext* context, |
| 327 | GrTexture* src, |
| 328 | GrTexture* dst, |
| 329 | const SkMatrix& matrix, |
| 330 | const GrClip& clip, |
| 331 | const SkRect& dstRect, |
| 332 | BoundaryMode boundaryMode, |
| 333 | const SkIRect& bounds) const { |
| 334 | SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); |
| 335 | GrFragmentProcessor* fp = this->getFragmentProcessor(src, matrix, bounds, boundaryMode); |
| 336 | GrPaint paint; |
| 337 | paint.addColorProcessor(fp)->unref(); |
| 338 | context->drawNonAARectToRect(dst->asRenderTarget(), clip, paint, SkMatrix::I(), |
| 339 | dstRect, srcRect); |
| 340 | } |
| 341 | |
| 342 | bool SkLightingImageFilterInternal::filterImageGPU(Proxy* proxy, |
| 343 | const SkBitmap& src, |
| 344 | const Context& ctx, |
| 345 | SkBitmap* result, |
| 346 | SkIPoint* offset) const { |
| 347 | SkBitmap input = src; |
| 348 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
| 349 | if (this->getInput(0) && |
| 350 | !this->getInput(0)->getInputResultGPU(proxy, src, ctx, &input, &srcOffset)) { |
| 351 | return false; |
| 352 | } |
| 353 | SkIRect bounds; |
| 354 | if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) { |
| 355 | return false; |
| 356 | } |
| 357 | SkRect dstRect = SkRect::MakeWH(SkIntToScalar(bounds.width()), |
| 358 | SkIntToScalar(bounds.height())); |
| 359 | GrTexture* srcTexture = input.getTexture(); |
| 360 | GrContext* context = srcTexture->getContext(); |
| 361 | |
| 362 | GrSurfaceDesc desc; |
| 363 | desc.fFlags = kRenderTarget_GrSurfaceFlag, |
| 364 | desc.fWidth = bounds.width(); |
| 365 | desc.fHeight = bounds.height(); |
| 366 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 367 | |
| 368 | SkAutoTUnref<GrTexture> dst( |
| 369 | context->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch)); |
| 370 | if (!dst) { |
| 371 | return false; |
| 372 | } |
| 373 | |
| 374 | // setup new clip |
| 375 | GrClip clip(dstRect); |
| 376 | |
| 377 | offset->fX = bounds.left(); |
| 378 | offset->fY = bounds.top(); |
| 379 | SkMatrix matrix(ctx.ctm()); |
| 380 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 381 | bounds.offset(-srcOffset); |
| 382 | SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1); |
| 383 | SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1); |
| 384 | SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1); |
| 385 | SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2); |
| 386 | SkRect interior = dstRect.makeInset(1, 1); |
| 387 | SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2); |
| 388 | SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1); |
| 389 | SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1); |
| 390 | SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1); |
| 391 | this->drawRect(context, srcTexture, dst, matrix, clip, topLeft, kTopLeft_BoundaryMode, bounds); |
| 392 | this->drawRect(context, srcTexture, dst, matrix, clip, top, kTop_BoundaryMode, bounds); |
| 393 | this->drawRect(context, srcTexture, dst, matrix, clip, topRight, kTopRight_BoundaryMode, |
| 394 | bounds); |
| 395 | this->drawRect(context, srcTexture, dst, matrix, clip, left, kLeft_BoundaryMode, bounds); |
| 396 | this->drawRect(context, srcTexture, dst, matrix, clip, interior, kInterior_BoundaryMode, |
| 397 | bounds); |
| 398 | this->drawRect(context, srcTexture, dst, matrix, clip, right, kRight_BoundaryMode, bounds); |
| 399 | this->drawRect(context, srcTexture, dst, matrix, clip, bottomLeft, kBottomLeft_BoundaryMode, |
| 400 | bounds); |
| 401 | this->drawRect(context, srcTexture, dst, matrix, clip, bottom, kBottom_BoundaryMode, bounds); |
| 402 | this->drawRect(context, srcTexture, dst, matrix, clip, bottomRight, kBottomRight_BoundaryMode, |
| 403 | bounds); |
| 404 | WrapTexture(dst, bounds.width(), bounds.height(), result); |
| 405 | return true; |
| 406 | } |
| 407 | #endif |
| 408 | |
| 409 | class SkDiffuseLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 410 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 411 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter*, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 412 | const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 413 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 414 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 415 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 416 | SkScalar kd() const { return fKD; } |
| 417 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 418 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 419 | SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 420 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 421 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 422 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 423 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 424 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 425 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, |
| 426 | const SkIRect& bounds, BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 427 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 428 | |
| 429 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 430 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 431 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 432 | SkScalar fKD; |
| 433 | }; |
| 434 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 435 | class SkSpecularLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 436 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 437 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 438 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 439 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 440 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 441 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 442 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 443 | SkScalar ks() const { return fKS; } |
| 444 | SkScalar shininess() const { return fShininess; } |
| 445 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 446 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 447 | SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 448 | SkScalar shininess, SkImageFilter* input, const CropRect*); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 449 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 450 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 451 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 452 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 453 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, |
| 454 | const SkIRect& bounds, BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 455 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 456 | |
| 457 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 458 | SkScalar fKS; |
| 459 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 460 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 461 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 462 | }; |
| 463 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 464 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 465 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 466 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 467 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 468 | GrLightingEffect(GrTexture* texture, const SkLight* light, SkScalar surfaceScale, |
| 469 | const SkMatrix& matrix, BoundaryMode boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 470 | virtual ~GrLightingEffect(); |
| 471 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 472 | const SkLight* light() const { return fLight; } |
| 473 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 474 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 475 | BoundaryMode boundaryMode() const { return fBoundaryMode; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 476 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 477 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 478 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 479 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 480 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 481 | // lighting shaders are complicated. We just throw up our hands. |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 482 | inout->mulByUnknownFourComponents(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 483 | } |
| 484 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 485 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 486 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 487 | const SkLight* fLight; |
| 488 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 489 | SkMatrix fFilterMatrix; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 490 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 491 | }; |
| 492 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 493 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 494 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 495 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 496 | const SkLight* light, |
| 497 | SkScalar surfaceScale, |
| 498 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 499 | SkScalar kd, |
| 500 | BoundaryMode boundaryMode) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 501 | return SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 502 | light, |
| 503 | surfaceScale, |
| 504 | matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 505 | kd, |
| 506 | boundaryMode)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 507 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 508 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 509 | const char* name() const override { return "DiffuseLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 510 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 511 | void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 512 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 513 | GrGLFragmentProcessor* createGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 514 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 515 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 516 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 517 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 518 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 519 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 520 | GrDiffuseLightingEffect(GrTexture* texture, |
| 521 | const SkLight* light, |
| 522 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 523 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 524 | SkScalar kd, |
| 525 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 526 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 527 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 528 | typedef GrLightingEffect INHERITED; |
| 529 | SkScalar fKD; |
| 530 | }; |
| 531 | |
| 532 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 533 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 534 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 535 | const SkLight* light, |
| 536 | SkScalar surfaceScale, |
| 537 | const SkMatrix& matrix, |
| 538 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 539 | SkScalar shininess, |
| 540 | BoundaryMode boundaryMode) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 541 | return SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 542 | light, |
| 543 | surfaceScale, |
| 544 | matrix, |
| 545 | ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 546 | shininess, |
| 547 | boundaryMode)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 548 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 549 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 550 | const char* name() const override { return "SpecularLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 551 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 552 | void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 553 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 554 | GrGLFragmentProcessor* createGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 555 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 556 | SkScalar ks() const { return fKS; } |
| 557 | SkScalar shininess() const { return fShininess; } |
| 558 | |
| 559 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 560 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 561 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 562 | GrSpecularLightingEffect(GrTexture* texture, |
| 563 | const SkLight* light, |
| 564 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 565 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 566 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 567 | SkScalar shininess, |
| 568 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 569 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 570 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 571 | typedef GrLightingEffect INHERITED; |
| 572 | SkScalar fKS; |
| 573 | SkScalar fShininess; |
| 574 | }; |
| 575 | |
| 576 | /////////////////////////////////////////////////////////////////////////////// |
| 577 | |
| 578 | class GrGLLight { |
| 579 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 580 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 581 | |
| 582 | /** |
| 583 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 584 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 585 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 586 | void emitLightColorUniform(GrGLFPBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 587 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 588 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 589 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 590 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 591 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 592 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 593 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 594 | * and so this function only needs to be overridden if the light color varies spatially. |
| 595 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 596 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) = 0; |
| 597 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 598 | |
| 599 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 600 | // INHERITED::setData(). |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 601 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 602 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 603 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 604 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 605 | /** |
| 606 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 607 | * function. |
| 608 | */ |
| 609 | UniformHandle lightColorUni() const { return fColorUni; } |
| 610 | |
| 611 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 612 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 613 | |
| 614 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 615 | }; |
| 616 | |
| 617 | /////////////////////////////////////////////////////////////////////////////// |
| 618 | |
| 619 | class GrGLDistantLight : public GrGLLight { |
| 620 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 621 | virtual ~GrGLDistantLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 622 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 623 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 624 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 625 | private: |
| 626 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 627 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 628 | }; |
| 629 | |
| 630 | /////////////////////////////////////////////////////////////////////////////// |
| 631 | |
| 632 | class GrGLPointLight : public GrGLLight { |
| 633 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 634 | virtual ~GrGLPointLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 635 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 636 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 637 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 638 | private: |
| 639 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 640 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 641 | }; |
| 642 | |
| 643 | /////////////////////////////////////////////////////////////////////////////// |
| 644 | |
| 645 | class GrGLSpotLight : public GrGLLight { |
| 646 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 647 | virtual ~GrGLSpotLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 648 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 649 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
| 650 | void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 651 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 652 | private: |
| 653 | typedef GrGLLight INHERITED; |
| 654 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 655 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 656 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 657 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 658 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 659 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 660 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 661 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 662 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 663 | #else |
| 664 | |
| 665 | class GrGLLight; |
| 666 | |
| 667 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 668 | |
| 669 | }; |
| 670 | |
| 671 | /////////////////////////////////////////////////////////////////////////////// |
| 672 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 673 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 674 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 675 | SK_DECLARE_INST_COUNT(SkLight) |
| 676 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 677 | enum LightType { |
| 678 | kDistant_LightType, |
| 679 | kPoint_LightType, |
| 680 | kSpot_LightType, |
| 681 | }; |
| 682 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 683 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 684 | virtual GrGLLight* createGLLight() const = 0; |
| 685 | virtual bool isEqual(const SkLight& other) const { |
| 686 | return fColor == other.fColor; |
| 687 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 688 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 689 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 690 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 691 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 692 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 693 | void flattenLight(SkWriteBuffer& buffer) const; |
| 694 | static SkLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 695 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 696 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 697 | SkLight(SkColor color) |
| 698 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 699 | SkIntToScalar(SkColorGetG(color)), |
| 700 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 701 | SkLight(const SkPoint3& color) |
| 702 | : fColor(color) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 703 | SkLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 704 | fColor = readPoint3(buffer); |
| 705 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 706 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 707 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 708 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 709 | |
| 710 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 711 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 712 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 713 | }; |
| 714 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 715 | /////////////////////////////////////////////////////////////////////////////// |
| 716 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 717 | class SkDistantLight : public SkLight { |
| 718 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 719 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 720 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 721 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 722 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 723 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 724 | return fDirection; |
| 725 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 726 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 727 | LightType type() const override { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 728 | const SkPoint3& direction() const { return fDirection; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 729 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 730 | #if SK_SUPPORT_GPU |
| 731 | return SkNEW(GrGLDistantLight); |
| 732 | #else |
| 733 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 734 | return NULL; |
| 735 | #endif |
| 736 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 737 | bool requiresFragmentPosition() const override { return false; } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 738 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 739 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 740 | if (other.type() != kDistant_LightType) { |
| 741 | return false; |
| 742 | } |
| 743 | |
| 744 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 745 | return INHERITED::isEqual(other) && |
| 746 | fDirection == o.fDirection; |
| 747 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 748 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 749 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 750 | fDirection = readPoint3(buffer); |
| 751 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 752 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 753 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 754 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 755 | : INHERITED(color), fDirection(direction) { |
| 756 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 757 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 758 | return new SkDistantLight(direction(), color()); |
| 759 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 760 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 761 | writePoint3(fDirection, buffer); |
| 762 | } |
| 763 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 764 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 765 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 766 | SkPoint3 fDirection; |
| 767 | }; |
| 768 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 769 | /////////////////////////////////////////////////////////////////////////////// |
| 770 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 771 | class SkPointLight : public SkLight { |
| 772 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 773 | SkPointLight(const SkPoint3& location, SkColor color) |
| 774 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 775 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 776 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 777 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 778 | fLocation.fY - SkIntToScalar(y), |
| 779 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 780 | direction.normalize(); |
| 781 | return direction; |
| 782 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 783 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 784 | LightType type() const override { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 785 | const SkPoint3& location() const { return fLocation; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 786 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 787 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 788 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 789 | #else |
| 790 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 791 | return NULL; |
| 792 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 793 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 794 | bool requiresFragmentPosition() const override { return true; } |
| 795 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 796 | if (other.type() != kPoint_LightType) { |
| 797 | return false; |
| 798 | } |
| 799 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 800 | return INHERITED::isEqual(other) && |
| 801 | fLocation == o.fLocation; |
| 802 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 803 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 804 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 805 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 806 | // Use X scale and Y scale on Z and average the result |
| 807 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 808 | matrix.mapVectors(&locationZ, 1); |
| 809 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 810 | return new SkPointLight(location, color()); |
| 811 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 812 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 813 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 814 | fLocation = readPoint3(buffer); |
| 815 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 816 | |
| 817 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 818 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 819 | : INHERITED(color), fLocation(location) {} |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 820 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 821 | writePoint3(fLocation, buffer); |
| 822 | } |
| 823 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 824 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 825 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 826 | SkPoint3 fLocation; |
| 827 | }; |
| 828 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 829 | /////////////////////////////////////////////////////////////////////////////// |
| 830 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 831 | class SkSpotLight : public SkLight { |
| 832 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 833 | SkSpotLight(const SkPoint3& location, |
| 834 | const SkPoint3& target, |
| 835 | SkScalar specularExponent, |
| 836 | SkScalar cutoffAngle, |
| 837 | SkColor color) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 838 | : INHERITED(color), |
| 839 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 840 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 841 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 842 | { |
| 843 | fS = target - location; |
| 844 | fS.normalize(); |
| 845 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 846 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 847 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 848 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 849 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 850 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 851 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 852 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 853 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 854 | // Use X scale and Y scale on Z and average the result |
| 855 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 856 | matrix.mapVectors(&locationZ, 1); |
| 857 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 858 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 859 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 860 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 861 | matrix.mapVectors(&targetZ, 1); |
| 862 | SkPoint3 target(target2.fX, target2.fY, SkScalarAve(targetZ.fX, targetZ.fY)); |
| 863 | SkPoint3 s = target - location; |
| 864 | s.normalize(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 865 | return new SkSpotLight(location, |
| 866 | target, |
| 867 | fSpecularExponent, |
| 868 | fCosOuterConeAngle, |
| 869 | fCosInnerConeAngle, |
| 870 | fConeScale, |
| 871 | s, |
| 872 | color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 873 | } |
| 874 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 875 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 876 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 877 | fLocation.fY - SkIntToScalar(y), |
| 878 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 879 | direction.normalize(); |
| 880 | return direction; |
| 881 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 882 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 883 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 884 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 885 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 886 | } |
| 887 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 888 | if (cosAngle < fCosInnerConeAngle) { |
| 889 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 890 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 891 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 892 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 893 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 894 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 895 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 896 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 897 | #else |
| 898 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 899 | return NULL; |
| 900 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 901 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 902 | bool requiresFragmentPosition() const override { return true; } |
| 903 | LightType type() const override { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 904 | const SkPoint3& location() const { return fLocation; } |
| 905 | const SkPoint3& target() const { return fTarget; } |
| 906 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 907 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 908 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 909 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 910 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 911 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 912 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 913 | fLocation = readPoint3(buffer); |
| 914 | fTarget = readPoint3(buffer); |
| 915 | fSpecularExponent = buffer.readScalar(); |
| 916 | fCosOuterConeAngle = buffer.readScalar(); |
| 917 | fCosInnerConeAngle = buffer.readScalar(); |
| 918 | fConeScale = buffer.readScalar(); |
| 919 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 920 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 921 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 922 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 923 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 924 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 925 | protected: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 926 | SkSpotLight(const SkPoint3& location, |
| 927 | const SkPoint3& target, |
| 928 | SkScalar specularExponent, |
| 929 | SkScalar cosOuterConeAngle, |
| 930 | SkScalar cosInnerConeAngle, |
| 931 | SkScalar coneScale, |
| 932 | const SkPoint3& s, |
| 933 | const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 934 | : INHERITED(color), |
| 935 | fLocation(location), |
| 936 | fTarget(target), |
| 937 | fSpecularExponent(specularExponent), |
| 938 | fCosOuterConeAngle(cosOuterConeAngle), |
| 939 | fCosInnerConeAngle(cosInnerConeAngle), |
| 940 | fConeScale(coneScale), |
| 941 | fS(s) |
| 942 | { |
| 943 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 944 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 945 | writePoint3(fLocation, buffer); |
| 946 | writePoint3(fTarget, buffer); |
| 947 | buffer.writeScalar(fSpecularExponent); |
| 948 | buffer.writeScalar(fCosOuterConeAngle); |
| 949 | buffer.writeScalar(fCosInnerConeAngle); |
| 950 | buffer.writeScalar(fConeScale); |
| 951 | writePoint3(fS, buffer); |
| 952 | } |
| 953 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 954 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 955 | if (other.type() != kSpot_LightType) { |
| 956 | return false; |
| 957 | } |
| 958 | |
| 959 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 960 | return INHERITED::isEqual(other) && |
| 961 | fLocation == o.fLocation && |
| 962 | fTarget == o.fTarget && |
| 963 | fSpecularExponent == o.fSpecularExponent && |
| 964 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 965 | } |
| 966 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 967 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 968 | static const SkScalar kSpecularExponentMin; |
| 969 | static const SkScalar kSpecularExponentMax; |
| 970 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 971 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 972 | SkPoint3 fLocation; |
| 973 | SkPoint3 fTarget; |
| 974 | SkScalar fSpecularExponent; |
| 975 | SkScalar fCosOuterConeAngle; |
| 976 | SkScalar fCosInnerConeAngle; |
| 977 | SkScalar fConeScale; |
| 978 | SkPoint3 fS; |
| 979 | }; |
| 980 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 981 | // According to the spec, the specular term should be in the range [1, 128] : |
| 982 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 983 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 984 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 985 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 986 | /////////////////////////////////////////////////////////////////////////////// |
| 987 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 988 | void SkLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 989 | // Write type first, then baseclass, then subclass. |
| 990 | buffer.writeInt(this->type()); |
| 991 | writePoint3(fColor, buffer); |
| 992 | this->onFlattenLight(buffer); |
| 993 | } |
| 994 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 995 | /*static*/ SkLight* SkLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 996 | // Read type first. |
| 997 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 998 | switch (type) { |
| 999 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 1000 | // then subclass, same order as flattenLight. |
| 1001 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 1002 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 1003 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 1004 | default: |
| 1005 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1006 | buffer.validate(false); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1007 | return NULL; |
| 1008 | } |
| 1009 | } |
| 1010 | /////////////////////////////////////////////////////////////////////////////// |
| 1011 | |
senorblanco | 9ea3d57 | 2014-07-08 09:16:22 -0700 | [diff] [blame] | 1012 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1013 | SkImageFilter* input, const CropRect* cropRect) |
| 1014 | : INHERITED(1, &input, cropRect) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1015 | , fLight(SkRef(light)) |
| 1016 | , fSurfaceScale(surfaceScale / 255) |
| 1017 | {} |
| 1018 | |
| 1019 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 1020 | SkColor lightColor, |
| 1021 | SkScalar surfaceScale, |
| 1022 | SkScalar kd, |
| 1023 | SkImageFilter* input, |
| 1024 | const CropRect* cropRect) { |
| 1025 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 1026 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1027 | } |
| 1028 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1029 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 1030 | SkColor lightColor, |
| 1031 | SkScalar surfaceScale, |
| 1032 | SkScalar kd, |
| 1033 | SkImageFilter* input, |
| 1034 | const CropRect* cropRect) { |
| 1035 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 1036 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1037 | } |
| 1038 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1039 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 1040 | const SkPoint3& target, |
| 1041 | SkScalar specularExponent, |
| 1042 | SkScalar cutoffAngle, |
| 1043 | SkColor lightColor, |
| 1044 | SkScalar surfaceScale, |
| 1045 | SkScalar kd, |
| 1046 | SkImageFilter* input, |
| 1047 | const CropRect* cropRect) { |
| 1048 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 1049 | cutoffAngle, lightColor))); |
| 1050 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1051 | } |
| 1052 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1053 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 1054 | SkColor lightColor, |
| 1055 | SkScalar surfaceScale, |
| 1056 | SkScalar ks, |
| 1057 | SkScalar shine, |
| 1058 | SkImageFilter* input, |
| 1059 | const CropRect* cropRect) { |
| 1060 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 1061 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1062 | } |
| 1063 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1064 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 1065 | SkColor lightColor, |
| 1066 | SkScalar surfaceScale, |
| 1067 | SkScalar ks, |
| 1068 | SkScalar shine, |
| 1069 | SkImageFilter* input, |
| 1070 | const CropRect* cropRect) { |
| 1071 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 1072 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1073 | } |
| 1074 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1075 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 1076 | const SkPoint3& target, |
| 1077 | SkScalar specularExponent, |
| 1078 | SkScalar cutoffAngle, |
| 1079 | SkColor lightColor, |
| 1080 | SkScalar surfaceScale, |
| 1081 | SkScalar ks, |
| 1082 | SkScalar shine, |
| 1083 | SkImageFilter* input, |
| 1084 | const CropRect* cropRect) { |
| 1085 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 1086 | cutoffAngle, lightColor))); |
| 1087 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1088 | } |
| 1089 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1090 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1091 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1092 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1093 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1094 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1095 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1096 | } |
| 1097 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1098 | /////////////////////////////////////////////////////////////////////////////// |
| 1099 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1100 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1101 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1102 | if (NULL == light) { |
| 1103 | return NULL; |
| 1104 | } |
| 1105 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
| 1106 | return NULL; |
| 1107 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1108 | // According to the spec, kd can be any non-negative number : |
| 1109 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1110 | if (kd < 0) { |
| 1111 | return NULL; |
| 1112 | } |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1113 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, (light, surfaceScale, kd, input, cropRect)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1114 | } |
| 1115 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1116 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkLight* light, |
| 1117 | SkScalar surfaceScale, |
| 1118 | SkScalar kd, |
| 1119 | SkImageFilter* input, |
| 1120 | const CropRect* cropRect) |
| 1121 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1122 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1123 | { |
| 1124 | } |
| 1125 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1126 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1127 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1128 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1129 | SkScalar surfaceScale = buffer.readScalar(); |
| 1130 | SkScalar kd = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1131 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1132 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1133 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1134 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1135 | this->INHERITED::flatten(buffer); |
| 1136 | buffer.writeScalar(fKD); |
| 1137 | } |
| 1138 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1139 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1140 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1141 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1142 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1143 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1144 | SkImageFilter* input = getInput(0); |
| 1145 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1146 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1147 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1148 | return false; |
| 1149 | } |
| 1150 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1151 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1152 | return false; |
| 1153 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1154 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1155 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1156 | return false; |
| 1157 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1158 | |
| 1159 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1160 | return false; |
| 1161 | } |
| 1162 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1163 | SkAutoLockPixels alp(src); |
| 1164 | if (!src.getPixels()) { |
| 1165 | return false; |
| 1166 | } |
| 1167 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1168 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1169 | return false; |
| 1170 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1171 | |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1172 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1173 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1174 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1175 | offset->fX = bounds.left(); |
| 1176 | offset->fY = bounds.top(); |
| 1177 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1178 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1179 | case SkLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1180 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, |
| 1181 | transformedLight, |
| 1182 | src, |
| 1183 | dst, |
| 1184 | surfaceScale(), |
| 1185 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1186 | break; |
| 1187 | case SkLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1188 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, |
| 1189 | transformedLight, |
| 1190 | src, |
| 1191 | dst, |
| 1192 | surfaceScale(), |
| 1193 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1194 | break; |
| 1195 | case SkLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1196 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, |
| 1197 | transformedLight, |
| 1198 | src, |
| 1199 | dst, |
| 1200 | surfaceScale(), |
| 1201 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1202 | break; |
| 1203 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1204 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1205 | return true; |
| 1206 | } |
| 1207 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1208 | #ifndef SK_IGNORE_TO_STRING |
| 1209 | void SkDiffuseLightingImageFilter::toString(SkString* str) const { |
| 1210 | str->appendf("SkDiffuseLightingImageFilter: ("); |
| 1211 | str->appendf("kD: %f\n", fKD); |
| 1212 | str->append(")"); |
| 1213 | } |
| 1214 | #endif |
| 1215 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1216 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1217 | GrFragmentProcessor* SkDiffuseLightingImageFilter::getFragmentProcessor( |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1218 | GrTexture* texture, |
| 1219 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1220 | const SkIRect&, |
| 1221 | BoundaryMode boundaryMode |
| 1222 | ) const { |
| 1223 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
| 1224 | return GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd(), boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1225 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1226 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1227 | |
| 1228 | /////////////////////////////////////////////////////////////////////////////// |
| 1229 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1230 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1231 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1232 | if (NULL == light) { |
| 1233 | return NULL; |
| 1234 | } |
| 1235 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
| 1236 | return NULL; |
| 1237 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1238 | // According to the spec, ks can be any non-negative number : |
| 1239 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1240 | if (ks < 0) { |
| 1241 | return NULL; |
| 1242 | } |
| 1243 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1244 | (light, surfaceScale, ks, shininess, input, cropRect)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1245 | } |
| 1246 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1247 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkLight* light, |
| 1248 | SkScalar surfaceScale, |
| 1249 | SkScalar ks, |
| 1250 | SkScalar shininess, |
| 1251 | SkImageFilter* input, |
| 1252 | const CropRect* cropRect) |
| 1253 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1254 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1255 | fShininess(shininess) |
| 1256 | { |
| 1257 | } |
| 1258 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1259 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1260 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1261 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1262 | SkScalar surfaceScale = buffer.readScalar(); |
| 1263 | SkScalar ks = buffer.readScalar(); |
| 1264 | SkScalar shine = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1265 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1266 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1267 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1268 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1269 | this->INHERITED::flatten(buffer); |
| 1270 | buffer.writeScalar(fKS); |
| 1271 | buffer.writeScalar(fShininess); |
| 1272 | } |
| 1273 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1274 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1275 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1276 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1277 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1278 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1279 | SkImageFilter* input = getInput(0); |
| 1280 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1281 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1282 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1283 | return false; |
| 1284 | } |
| 1285 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1286 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1287 | return false; |
| 1288 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1289 | |
| 1290 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1291 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1292 | return false; |
| 1293 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1294 | |
| 1295 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1296 | return false; |
| 1297 | } |
| 1298 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1299 | SkAutoLockPixels alp(src); |
| 1300 | if (!src.getPixels()) { |
| 1301 | return false; |
| 1302 | } |
| 1303 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1304 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1305 | return false; |
| 1306 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1307 | |
| 1308 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1309 | offset->fX = bounds.left(); |
| 1310 | offset->fY = bounds.top(); |
| 1311 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1312 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1313 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1314 | case SkLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1315 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, |
| 1316 | transformedLight, |
| 1317 | src, |
| 1318 | dst, |
| 1319 | surfaceScale(), |
| 1320 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1321 | break; |
| 1322 | case SkLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1323 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, |
| 1324 | transformedLight, |
| 1325 | src, |
| 1326 | dst, |
| 1327 | surfaceScale(), |
| 1328 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1329 | break; |
| 1330 | case SkLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1331 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, |
| 1332 | transformedLight, |
| 1333 | src, |
| 1334 | dst, |
| 1335 | surfaceScale(), |
| 1336 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1337 | break; |
| 1338 | } |
| 1339 | return true; |
| 1340 | } |
| 1341 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1342 | #ifndef SK_IGNORE_TO_STRING |
| 1343 | void SkSpecularLightingImageFilter::toString(SkString* str) const { |
| 1344 | str->appendf("SkSpecularLightingImageFilter: ("); |
| 1345 | str->appendf("kS: %f shininess: %f", fKS, fShininess); |
| 1346 | str->append(")"); |
| 1347 | } |
| 1348 | #endif |
| 1349 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1350 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1351 | GrFragmentProcessor* SkSpecularLightingImageFilter::getFragmentProcessor( |
| 1352 | GrTexture* texture, |
| 1353 | const SkMatrix& matrix, |
| 1354 | const SkIRect&, |
| 1355 | BoundaryMode boundaryMode) const { |
| 1356 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
| 1357 | return GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess(), |
| 1358 | boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1359 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1360 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1361 | |
| 1362 | /////////////////////////////////////////////////////////////////////////////// |
| 1363 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1364 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1365 | |
| 1366 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1367 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1368 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1369 | SkScalarToFloat(random->nextSScalar1()), |
| 1370 | SkScalarToFloat(random->nextSScalar1())); |
| 1371 | } |
| 1372 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1373 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1374 | int type = random->nextULessThan(3); |
| 1375 | switch (type) { |
| 1376 | case 0: { |
| 1377 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1378 | } |
| 1379 | case 1: { |
| 1380 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1381 | } |
| 1382 | case 2: { |
| 1383 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1384 | random_point3(random), |
| 1385 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1386 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1387 | random->nextU())); |
| 1388 | } |
| 1389 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1390 | SkFAIL("Unexpected value."); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1391 | return NULL; |
| 1392 | } |
| 1393 | } |
| 1394 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1395 | SkString emitNormalFunc(BoundaryMode mode, |
| 1396 | const char* pointToNormalName, |
| 1397 | const char* sobelFuncName) { |
| 1398 | SkString result; |
| 1399 | switch (mode) { |
| 1400 | case kTopLeft_BoundaryMode: |
| 1401 | result.printf("\treturn %s(%s(0.0, 0.0, m[4], m[5], m[7], m[8], %g),\n" |
| 1402 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1403 | "\t surfaceScale);\n", |
| 1404 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1405 | sobelFuncName, gTwoThirds); |
| 1406 | break; |
| 1407 | case kTop_BoundaryMode: |
| 1408 | result.printf("\treturn %s(%s(0.0, 0.0, m[3], m[5], m[6], m[8], %g),\n" |
| 1409 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1410 | "\t surfaceScale);\n", |
| 1411 | pointToNormalName, sobelFuncName, gOneThird, |
| 1412 | sobelFuncName, gOneHalf); |
| 1413 | break; |
| 1414 | case kTopRight_BoundaryMode: |
| 1415 | result.printf("\treturn %s(%s( 0.0, 0.0, m[3], m[4], m[6], m[7], %g),\n" |
| 1416 | "\t %s(m[3], m[6], m[4], m[7], 0.0, 0.0, %g),\n" |
| 1417 | "\t surfaceScale);\n", |
| 1418 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1419 | sobelFuncName, gTwoThirds); |
| 1420 | break; |
| 1421 | case kLeft_BoundaryMode: |
| 1422 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], m[7], m[8], %g),\n" |
| 1423 | "\t %s( 0.0, 0.0, m[1], m[7], m[2], m[8], %g),\n" |
| 1424 | "\t surfaceScale);\n", |
| 1425 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1426 | sobelFuncName, gOneThird); |
| 1427 | break; |
| 1428 | case kInterior_BoundaryMode: |
| 1429 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], %g),\n" |
| 1430 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], %g),\n" |
| 1431 | "\t surfaceScale);\n", |
| 1432 | pointToNormalName, sobelFuncName, gOneQuarter, |
| 1433 | sobelFuncName, gOneQuarter); |
| 1434 | break; |
| 1435 | case kRight_BoundaryMode: |
| 1436 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], m[6], m[7], %g),\n" |
| 1437 | "\t %s(m[0], m[6], m[1], m[7], 0.0, 0.0, %g),\n" |
| 1438 | "\t surfaceScale);\n", |
| 1439 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1440 | sobelFuncName, gOneThird); |
| 1441 | break; |
| 1442 | case kBottomLeft_BoundaryMode: |
| 1443 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], 0.0, 0.0, %g),\n" |
| 1444 | "\t %s( 0.0, 0.0, m[1], m[4], m[2], m[5], %g),\n" |
| 1445 | "\t surfaceScale);\n", |
| 1446 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1447 | sobelFuncName, gTwoThirds); |
| 1448 | break; |
| 1449 | case kBottom_BoundaryMode: |
| 1450 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], 0.0, 0.0, %g),\n" |
| 1451 | "\t %s(m[0], m[3], m[1], m[4], m[2], m[5], %g),\n" |
| 1452 | "\t surfaceScale);\n", |
| 1453 | pointToNormalName, sobelFuncName, gOneThird, |
| 1454 | sobelFuncName, gOneHalf); |
| 1455 | break; |
| 1456 | case kBottomRight_BoundaryMode: |
| 1457 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], 0.0, 0.0, %g),\n" |
| 1458 | "\t %s(m[0], m[3], m[1], m[4], 0.0, 0.0, %g),\n" |
| 1459 | "\t surfaceScale);\n", |
| 1460 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1461 | sobelFuncName, gTwoThirds); |
| 1462 | break; |
| 1463 | default: |
| 1464 | SkASSERT(false); |
| 1465 | break; |
| 1466 | } |
| 1467 | return result; |
| 1468 | } |
| 1469 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1470 | } |
| 1471 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1472 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1473 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1474 | GrGLLightingEffect(const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1475 | virtual ~GrGLLightingEffect(); |
| 1476 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1477 | void emitCode(GrGLFPBuilder*, |
| 1478 | const GrFragmentProcessor&, |
| 1479 | const char* outputColor, |
| 1480 | const char* inputColor, |
| 1481 | const TransformedCoordsArray&, |
| 1482 | const TextureSamplerArray&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1483 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1484 | static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1485 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1486 | /** |
| 1487 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1488 | */ |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1489 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1490 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1491 | protected: |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1492 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1493 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1494 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1495 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1496 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1497 | UniformHandle fImageIncrementUni; |
| 1498 | UniformHandle fSurfaceScaleUni; |
| 1499 | GrGLLight* fLight; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1500 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1501 | }; |
| 1502 | |
| 1503 | /////////////////////////////////////////////////////////////////////////////// |
| 1504 | |
| 1505 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1506 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1507 | GrGLDiffuseLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1508 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
| 1509 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1510 | |
| 1511 | private: |
| 1512 | typedef GrGLLightingEffect INHERITED; |
| 1513 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1514 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1515 | }; |
| 1516 | |
| 1517 | /////////////////////////////////////////////////////////////////////////////// |
| 1518 | |
| 1519 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1520 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1521 | GrGLSpecularLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1522 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
| 1523 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1524 | |
| 1525 | private: |
| 1526 | typedef GrGLLightingEffect INHERITED; |
| 1527 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1528 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1529 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1530 | }; |
| 1531 | |
| 1532 | /////////////////////////////////////////////////////////////////////////////// |
| 1533 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1534 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1535 | const SkLight* light, |
| 1536 | SkScalar surfaceScale, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1537 | const SkMatrix& matrix, |
| 1538 | BoundaryMode boundaryMode) |
bsalomon | 6267f81 | 2014-08-29 15:05:53 -0700 | [diff] [blame] | 1539 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1540 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1541 | , fSurfaceScale(surfaceScale) |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1542 | , fFilterMatrix(matrix) |
| 1543 | , fBoundaryMode(boundaryMode) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1544 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1545 | if (light->requiresFragmentPosition()) { |
| 1546 | this->setWillReadFragmentPosition(); |
| 1547 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1548 | } |
| 1549 | |
| 1550 | GrLightingEffect::~GrLightingEffect() { |
| 1551 | fLight->unref(); |
| 1552 | } |
| 1553 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1554 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1555 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 1556 | return fLight->isEqual(*s.fLight) && |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1557 | fSurfaceScale == s.fSurfaceScale && |
| 1558 | fBoundaryMode == s.fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1559 | } |
| 1560 | |
| 1561 | /////////////////////////////////////////////////////////////////////////////// |
| 1562 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1563 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1564 | const SkLight* light, |
| 1565 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1566 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1567 | SkScalar kd, |
| 1568 | BoundaryMode boundaryMode) |
| 1569 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), fKD(kd) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1570 | this->initClassID<GrDiffuseLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1571 | } |
| 1572 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1573 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1574 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1575 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1576 | this->kd() == s.kd(); |
| 1577 | } |
| 1578 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1579 | void GrDiffuseLightingEffect::getGLProcessorKey(const GrGLCaps& caps, |
| 1580 | GrProcessorKeyBuilder* b) const { |
| 1581 | GrGLDiffuseLightingEffect::GenKey(*this, caps, b); |
| 1582 | } |
| 1583 | |
| 1584 | GrGLFragmentProcessor* GrDiffuseLightingEffect::createGLInstance() const { |
| 1585 | return SkNEW_ARGS(GrGLDiffuseLightingEffect, (*this)); |
| 1586 | } |
| 1587 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1588 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1589 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1590 | GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1591 | GrContext* context, |
| 1592 | const GrDrawTargetCaps&, |
| 1593 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1594 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1595 | SkScalar kd = random->nextUScalar1(); |
| 1596 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1597 | SkMatrix matrix; |
| 1598 | for (int i = 0; i < 9; i++) { |
| 1599 | matrix[i] = random->nextUScalar1(); |
| 1600 | } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1601 | BoundaryMode mode = static_cast<BoundaryMode>(random->nextU() % kBoundaryModeCount); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1602 | return GrDiffuseLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1603 | light, surfaceScale, matrix, kd, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1604 | } |
| 1605 | |
| 1606 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1607 | /////////////////////////////////////////////////////////////////////////////// |
| 1608 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1609 | GrGLLightingEffect::GrGLLightingEffect(const GrProcessor& fp) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1610 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1611 | fLight = m.light()->createGLLight(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1612 | fBoundaryMode = m.boundaryMode(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1613 | } |
| 1614 | |
| 1615 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1616 | delete fLight; |
| 1617 | } |
| 1618 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1619 | void GrGLLightingEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1620 | const GrFragmentProcessor&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1621 | const char* outputColor, |
| 1622 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1623 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1624 | const TextureSamplerArray& samplers) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1625 | fImageIncrementUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1626 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1627 | "ImageIncrement"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1628 | fSurfaceScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1629 | kFloat_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1630 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1631 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1632 | SkString lightFunc; |
| 1633 | this->emitLightFunc(builder, &lightFunc); |
| 1634 | static const GrGLShaderVar gSobelArgs[] = { |
| 1635 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1636 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1637 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1638 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1639 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1640 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1641 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1642 | }; |
| 1643 | SkString sobelFuncName; |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1644 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1645 | SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0); |
| 1646 | |
| 1647 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1648 | "sobel", |
| 1649 | SK_ARRAY_COUNT(gSobelArgs), |
| 1650 | gSobelArgs, |
| 1651 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1652 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1653 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1654 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1655 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1656 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1657 | }; |
| 1658 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1659 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1660 | "pointToNormal", |
| 1661 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1662 | gPointToNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1663 | "\treturn normalize(vec3(-x * scale, -y * scale, 1));\n", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1664 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1665 | |
| 1666 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1667 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1668 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1669 | }; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1670 | SkString normalBody = emitNormalFunc(fBoundaryMode, |
| 1671 | pointToNormalName.c_str(), |
| 1672 | sobelFuncName.c_str()); |
| 1673 | SkString normalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1674 | fsBuilder->emitFunction(kVec3f_GrSLType, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1675 | "normal", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1676 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1677 | gInteriorNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1678 | normalBody.c_str(), |
| 1679 | &normalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1680 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1681 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1682 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1683 | |
| 1684 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1685 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1686 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1687 | int index = 0; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1688 | for (int dy = 1; dy >= -1; dy--) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1689 | for (int dx = -1; dx <= 1; dx++) { |
| 1690 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1691 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1692 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
| 1693 | fsBuilder->appendTextureLookup(samplers[0], texCoords.c_str()); |
| 1694 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1695 | } |
| 1696 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1697 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1698 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1699 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1700 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1701 | fsBuilder->codeAppend(";\n"); |
| 1702 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1703 | outputColor, lightFunc.c_str(), normalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1704 | fLight->emitLightColor(builder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1705 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1706 | SkString modulate; |
egdaniel | 089f8de | 2014-10-09 10:34:58 -0700 | [diff] [blame] | 1707 | GrGLSLMulVarBy4f(&modulate, outputColor, inputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1708 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1709 | } |
| 1710 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1711 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
| 1712 | const GrGLCaps& caps, GrProcessorKeyBuilder* b) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1713 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
| 1714 | b->add32(lighting.boundaryMode() << 2 | lighting.light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1715 | } |
| 1716 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1717 | void GrGLLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1718 | const GrProcessor& proc) { |
| 1719 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1720 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1721 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1722 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1723 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1724 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1725 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1726 | } |
| 1727 | |
| 1728 | /////////////////////////////////////////////////////////////////////////////// |
| 1729 | |
| 1730 | /////////////////////////////////////////////////////////////////////////////// |
| 1731 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1732 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrProcessor& proc) |
| 1733 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1734 | } |
| 1735 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1736 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1737 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1738 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1739 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1740 | "KD", &kd); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1741 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1742 | static const GrGLShaderVar gLightArgs[] = { |
| 1743 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1744 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1745 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1746 | }; |
| 1747 | SkString lightBody; |
| 1748 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1749 | lightBody.appendf("\treturn vec4(lightColor * clamp(colorScale, 0.0, 1.0), 1.0);\n"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1750 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1751 | "light", |
| 1752 | SK_ARRAY_COUNT(gLightArgs), |
| 1753 | gLightArgs, |
| 1754 | lightBody.c_str(), |
| 1755 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1756 | } |
| 1757 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1758 | void GrGLDiffuseLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1759 | const GrProcessor& proc) { |
| 1760 | INHERITED::setData(pdman, proc); |
| 1761 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1762 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1763 | } |
| 1764 | |
| 1765 | /////////////////////////////////////////////////////////////////////////////// |
| 1766 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1767 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1768 | const SkLight* light, |
| 1769 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1770 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1771 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1772 | SkScalar shininess, |
| 1773 | BoundaryMode boundaryMode) |
| 1774 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1775 | fKS(ks), |
| 1776 | fShininess(shininess) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1777 | this->initClassID<GrSpecularLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1778 | } |
| 1779 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1780 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1781 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1782 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1783 | this->ks() == s.ks() && |
| 1784 | this->shininess() == s.shininess(); |
| 1785 | } |
| 1786 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1787 | void GrSpecularLightingEffect::getGLProcessorKey(const GrGLCaps& caps, |
| 1788 | GrProcessorKeyBuilder* b) const { |
| 1789 | GrGLSpecularLightingEffect::GenKey(*this, caps, b); |
| 1790 | } |
| 1791 | |
| 1792 | GrGLFragmentProcessor* GrSpecularLightingEffect::createGLInstance() const { |
| 1793 | return SkNEW_ARGS(GrGLSpecularLightingEffect, (*this)); |
| 1794 | } |
| 1795 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1796 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1797 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1798 | GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
| 1799 | GrContext* context, |
| 1800 | const GrDrawTargetCaps&, |
| 1801 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1802 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1803 | SkScalar ks = random->nextUScalar1(); |
| 1804 | SkScalar shininess = random->nextUScalar1(); |
| 1805 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1806 | SkMatrix matrix; |
| 1807 | for (int i = 0; i < 9; i++) { |
| 1808 | matrix[i] = random->nextUScalar1(); |
| 1809 | } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1810 | BoundaryMode mode = static_cast<BoundaryMode>(random->nextU() % kBoundaryModeCount); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1811 | return GrSpecularLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1812 | light, surfaceScale, matrix, ks, shininess, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1813 | } |
| 1814 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1815 | /////////////////////////////////////////////////////////////////////////////// |
| 1816 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1817 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrProcessor& proc) |
| 1818 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1819 | } |
| 1820 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1821 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1822 | const char* ks; |
| 1823 | const char* shininess; |
| 1824 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1825 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1826 | kFloat_GrSLType, kDefault_GrSLPrecision, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1827 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame^] | 1828 | kFloat_GrSLType, |
| 1829 | kDefault_GrSLPrecision, |
| 1830 | "Shininess", |
| 1831 | &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1832 | |
| 1833 | static const GrGLShaderVar gLightArgs[] = { |
| 1834 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1835 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1836 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1837 | }; |
| 1838 | SkString lightBody; |
| 1839 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1840 | 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] | 1841 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1842 | lightBody.appendf("\treturn vec4(color, max(max(color.r, color.g), color.b));\n"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1843 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1844 | "light", |
| 1845 | SK_ARRAY_COUNT(gLightArgs), |
| 1846 | gLightArgs, |
| 1847 | lightBody.c_str(), |
| 1848 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1849 | } |
| 1850 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1851 | void GrGLSpecularLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1852 | const GrProcessor& effect) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1853 | INHERITED::setData(pdman, effect); |
| 1854 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1855 | pdman.set1f(fKSUni, spec.ks()); |
| 1856 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1857 | } |
| 1858 | |
| 1859 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1860 | void GrGLLight::emitLightColorUniform(GrGLFPBuilder* builder) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1861 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1862 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1863 | "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1864 | } |
| 1865 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1866 | void GrGLLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1867 | const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1868 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1869 | } |
| 1870 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1871 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1872 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1873 | setUniformPoint3(pdman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1874 | } |
| 1875 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1876 | /////////////////////////////////////////////////////////////////////////////// |
| 1877 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1878 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1879 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1880 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1881 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1882 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1883 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1884 | } |
| 1885 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1886 | void GrGLDistantLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1887 | const char* dir; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1888 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1889 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1890 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1891 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1892 | } |
| 1893 | |
| 1894 | /////////////////////////////////////////////////////////////////////////////// |
| 1895 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1896 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1897 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1898 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1899 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1900 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1901 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1902 | } |
| 1903 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1904 | void GrGLPointLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1905 | const char* loc; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1906 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1907 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1908 | "LightLocation", &loc); |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1909 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1910 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1911 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1912 | } |
| 1913 | |
| 1914 | /////////////////////////////////////////////////////////////////////////////// |
| 1915 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1916 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1917 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1918 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1919 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1920 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1921 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1922 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1923 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1924 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1925 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1926 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1927 | } |
| 1928 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1929 | void GrGLSpotLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1930 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1931 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1932 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1933 | "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1934 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1935 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1936 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1937 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1938 | } |
| 1939 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1940 | void GrGLSpotLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1941 | const char *surfaceToLight) { |
| 1942 | |
| 1943 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1944 | |
| 1945 | const char* exponent; |
| 1946 | const char* cosInner; |
| 1947 | const char* cosOuter; |
| 1948 | const char* coneScale; |
| 1949 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1950 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1951 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1952 | "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1953 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1954 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1955 | "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1956 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1957 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1958 | "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1959 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1960 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1961 | "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1962 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1963 | kVec3f_GrSLType, kDefault_GrSLPrecision, "S", &s); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1964 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1965 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1966 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1967 | }; |
| 1968 | SkString lightColorBody; |
| 1969 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1970 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1971 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1972 | lightColorBody.appendf("\t}\n"); |
| 1973 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1974 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1975 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1976 | color, cosOuter, coneScale); |
| 1977 | lightColorBody.appendf("\t}\n"); |
| 1978 | lightColorBody.appendf("\treturn %s;\n", color); |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1979 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1980 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1981 | "lightColor", |
| 1982 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1983 | gLightColorArgs, |
| 1984 | lightColorBody.c_str(), |
| 1985 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1986 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1987 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1988 | } |
| 1989 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1990 | #endif |
| 1991 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1992 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 1993 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 1994 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 1995 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |