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 |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 18 | #include "GrDrawContext.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 19 | #include "GrFragmentProcessor.h" |
| 20 | #include "GrInvariantOutput.h" |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 21 | #include "effects/GrSingleTextureEffect.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 22 | #include "gl/GrGLProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 23 | #include "gl/builders/GrGLProgramBuilder.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 24 | |
| 25 | class GrGLDiffuseLightingEffect; |
| 26 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 27 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 28 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 29 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 30 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 31 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 32 | namespace { |
| 33 | |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 34 | const SkScalar gOneThird = SkIntToScalar(1) / 3; |
| 35 | const SkScalar gTwoThirds = SkIntToScalar(2) / 3; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 36 | const SkScalar gOneHalf = 0.5f; |
| 37 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 38 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 39 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 40 | void setUniformPoint3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 41 | const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 42 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 43 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 44 | } |
| 45 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 46 | void setUniformNormal3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 47 | const SkPoint3& point) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 48 | setUniformPoint3(pdman, uni, SkPoint3(point.fX, point.fY, point.fZ)); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 49 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 50 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 51 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 52 | // Shift matrix components to the left, as we advance pixels to the right. |
| 53 | inline void shiftMatrixLeft(int m[9]) { |
| 54 | m[0] = m[1]; |
| 55 | m[3] = m[4]; |
| 56 | m[6] = m[7]; |
| 57 | m[1] = m[2]; |
| 58 | m[4] = m[5]; |
| 59 | m[7] = m[8]; |
| 60 | } |
| 61 | |
| 62 | class DiffuseLightingType { |
| 63 | public: |
| 64 | DiffuseLightingType(SkScalar kd) |
| 65 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 66 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 67 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 68 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 69 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 70 | SkPoint3 color(lightColor * colorScale); |
| 71 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 72 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 73 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 74 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 75 | } |
| 76 | private: |
| 77 | SkScalar fKD; |
| 78 | }; |
| 79 | |
| 80 | class SpecularLightingType { |
| 81 | public: |
| 82 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 83 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 84 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 85 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 86 | SkPoint3 halfDir(surfaceTolight); |
| 87 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
| 88 | halfDir.normalize(); |
| 89 | SkScalar colorScale = SkScalarMul(fKS, |
| 90 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 91 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 92 | SkPoint3 color(lightColor * colorScale); |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 93 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(color.maxComponent()), 255), |
| 94 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 95 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 96 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 97 | } |
| 98 | private: |
| 99 | SkScalar fKS; |
| 100 | SkScalar fShininess; |
| 101 | }; |
| 102 | |
| 103 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 104 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 105 | } |
| 106 | |
| 107 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
| 108 | SkPoint3 vector(SkScalarMul(-x, surfaceScale), |
| 109 | SkScalarMul(-y, surfaceScale), |
| 110 | SK_Scalar1); |
| 111 | vector.normalize(); |
| 112 | return vector; |
| 113 | } |
| 114 | |
| 115 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 116 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 117 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 118 | surfaceScale); |
| 119 | } |
| 120 | |
| 121 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 122 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 123 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 124 | surfaceScale); |
| 125 | } |
| 126 | |
| 127 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 128 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 129 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 130 | surfaceScale); |
| 131 | } |
| 132 | |
| 133 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 134 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 135 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 136 | surfaceScale); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 141 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 142 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 143 | surfaceScale); |
| 144 | } |
| 145 | |
| 146 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 147 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 148 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 149 | surfaceScale); |
| 150 | } |
| 151 | |
| 152 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 153 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 154 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 155 | surfaceScale); |
| 156 | } |
| 157 | |
| 158 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 159 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 160 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 161 | surfaceScale); |
| 162 | } |
| 163 | |
| 164 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 165 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 166 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 167 | surfaceScale); |
| 168 | } |
| 169 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 170 | template <class LightingType, class LightType> void lightBitmap( |
| 171 | const LightingType& lightingType, const SkLight* light, const SkBitmap& src, SkBitmap* dst, |
| 172 | SkScalar surfaceScale, const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 173 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 174 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 175 | int left = bounds.left(), right = bounds.right(); |
| 176 | int bottom = bounds.bottom(); |
| 177 | int y = bounds.top(); |
| 178 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 179 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 180 | int x = left; |
| 181 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 182 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 183 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 184 | m[4] = SkGetPackedA32(*row1++); |
| 185 | m[5] = SkGetPackedA32(*row1++); |
| 186 | m[7] = SkGetPackedA32(*row2++); |
| 187 | m[8] = SkGetPackedA32(*row2++); |
| 188 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 189 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 190 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 191 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 192 | { |
| 193 | shiftMatrixLeft(m); |
| 194 | m[5] = SkGetPackedA32(*row1++); |
| 195 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 196 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 197 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 198 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 199 | } |
| 200 | shiftMatrixLeft(m); |
| 201 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 202 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 203 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 204 | } |
| 205 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 206 | for (++y; y < bottom - 1; ++y) { |
| 207 | int x = left; |
| 208 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 209 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 210 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 211 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 212 | m[1] = SkGetPackedA32(*row0++); |
| 213 | m[2] = SkGetPackedA32(*row0++); |
| 214 | m[4] = SkGetPackedA32(*row1++); |
| 215 | m[5] = SkGetPackedA32(*row1++); |
| 216 | m[7] = SkGetPackedA32(*row2++); |
| 217 | m[8] = SkGetPackedA32(*row2++); |
| 218 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 219 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 220 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 221 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 222 | shiftMatrixLeft(m); |
| 223 | m[2] = SkGetPackedA32(*row0++); |
| 224 | m[5] = SkGetPackedA32(*row1++); |
| 225 | m[8] = SkGetPackedA32(*row2++); |
| 226 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 227 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 228 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 229 | } |
| 230 | shiftMatrixLeft(m); |
| 231 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 232 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 233 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 234 | } |
| 235 | |
| 236 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 237 | int x = left; |
| 238 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 239 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 240 | int m[9]; |
| 241 | m[1] = SkGetPackedA32(*row0++); |
| 242 | m[2] = SkGetPackedA32(*row0++); |
| 243 | m[4] = SkGetPackedA32(*row1++); |
| 244 | m[5] = SkGetPackedA32(*row1++); |
| 245 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 246 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 247 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 248 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 249 | { |
| 250 | shiftMatrixLeft(m); |
| 251 | m[2] = SkGetPackedA32(*row0++); |
| 252 | m[5] = SkGetPackedA32(*row1++); |
| 253 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 254 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 255 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 256 | } |
| 257 | shiftMatrixLeft(m); |
| 258 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 259 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 260 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 261 | } |
| 262 | } |
| 263 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 264 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 265 | SkPoint3 point; |
| 266 | point.fX = buffer.readScalar(); |
| 267 | point.fY = buffer.readScalar(); |
| 268 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 269 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 270 | SkScalarIsFinite(point.fY) && |
| 271 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 272 | return point; |
| 273 | }; |
| 274 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 275 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 276 | buffer.writeScalar(point.fX); |
| 277 | buffer.writeScalar(point.fY); |
| 278 | buffer.writeScalar(point.fZ); |
| 279 | }; |
| 280 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 281 | enum BoundaryMode { |
| 282 | kTopLeft_BoundaryMode, |
| 283 | kTop_BoundaryMode, |
| 284 | kTopRight_BoundaryMode, |
| 285 | kLeft_BoundaryMode, |
| 286 | kInterior_BoundaryMode, |
| 287 | kRight_BoundaryMode, |
| 288 | kBottomLeft_BoundaryMode, |
| 289 | kBottom_BoundaryMode, |
| 290 | kBottomRight_BoundaryMode, |
| 291 | |
| 292 | kBoundaryModeCount, |
| 293 | }; |
| 294 | |
| 295 | class SkLightingImageFilterInternal : public SkLightingImageFilter { |
| 296 | protected: |
| 297 | SkLightingImageFilterInternal(SkLight* light, |
| 298 | SkScalar surfaceScale, |
| 299 | SkImageFilter* input, |
| 300 | const CropRect* cropRect) |
| 301 | : INHERITED(light, surfaceScale, input, cropRect) {} |
| 302 | |
| 303 | #if SK_SUPPORT_GPU |
| 304 | bool canFilterImageGPU() const override { return true; } |
| 305 | bool filterImageGPU(Proxy*, const SkBitmap& src, const Context&, |
| 306 | SkBitmap* result, SkIPoint* offset) const override; |
| 307 | virtual GrFragmentProcessor* getFragmentProcessor(GrTexture*, |
| 308 | const SkMatrix&, |
| 309 | const SkIRect& bounds, |
| 310 | BoundaryMode boundaryMode) const = 0; |
| 311 | #endif |
| 312 | private: |
| 313 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 314 | void drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 315 | GrTexture* src, |
| 316 | GrTexture* dst, |
| 317 | const SkMatrix& matrix, |
| 318 | const GrClip& clip, |
| 319 | const SkRect& dstRect, |
| 320 | BoundaryMode boundaryMode, |
| 321 | const SkIRect& bounds) const; |
| 322 | #endif |
| 323 | typedef SkLightingImageFilter INHERITED; |
| 324 | }; |
| 325 | |
| 326 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 327 | void SkLightingImageFilterInternal::drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 328 | GrTexture* src, |
| 329 | GrTexture* dst, |
| 330 | const SkMatrix& matrix, |
| 331 | const GrClip& clip, |
| 332 | const SkRect& dstRect, |
| 333 | BoundaryMode boundaryMode, |
| 334 | const SkIRect& bounds) const { |
| 335 | SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); |
| 336 | GrFragmentProcessor* fp = this->getFragmentProcessor(src, matrix, bounds, boundaryMode); |
| 337 | GrPaint paint; |
| 338 | paint.addColorProcessor(fp)->unref(); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 339 | drawContext->drawNonAARectToRect(dst->asRenderTarget(), clip, paint, SkMatrix::I(), |
| 340 | dstRect, srcRect); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | bool SkLightingImageFilterInternal::filterImageGPU(Proxy* proxy, |
| 344 | const SkBitmap& src, |
| 345 | const Context& ctx, |
| 346 | SkBitmap* result, |
| 347 | SkIPoint* offset) const { |
| 348 | SkBitmap input = src; |
| 349 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
| 350 | if (this->getInput(0) && |
| 351 | !this->getInput(0)->getInputResultGPU(proxy, src, ctx, &input, &srcOffset)) { |
| 352 | return false; |
| 353 | } |
| 354 | SkIRect bounds; |
| 355 | if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) { |
| 356 | return false; |
| 357 | } |
| 358 | SkRect dstRect = SkRect::MakeWH(SkIntToScalar(bounds.width()), |
| 359 | SkIntToScalar(bounds.height())); |
| 360 | GrTexture* srcTexture = input.getTexture(); |
| 361 | GrContext* context = srcTexture->getContext(); |
| 362 | |
| 363 | GrSurfaceDesc desc; |
| 364 | desc.fFlags = kRenderTarget_GrSurfaceFlag, |
| 365 | desc.fWidth = bounds.width(); |
| 366 | desc.fHeight = bounds.height(); |
| 367 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 368 | |
bsalomon | d309e7a | 2015-04-30 14:18:54 -0700 | [diff] [blame] | 369 | SkAutoTUnref<GrTexture> dst(context->textureProvider()->refScratchTexture(desc, |
| 370 | GrTextureProvider::kApprox_ScratchTexMatch)); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 371 | if (!dst) { |
| 372 | return false; |
| 373 | } |
| 374 | |
| 375 | // setup new clip |
| 376 | GrClip clip(dstRect); |
| 377 | |
| 378 | offset->fX = bounds.left(); |
| 379 | offset->fY = bounds.top(); |
| 380 | SkMatrix matrix(ctx.ctm()); |
| 381 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 382 | bounds.offset(-srcOffset); |
| 383 | SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1); |
| 384 | SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1); |
| 385 | SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1); |
| 386 | SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2); |
| 387 | SkRect interior = dstRect.makeInset(1, 1); |
| 388 | SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2); |
| 389 | SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1); |
| 390 | SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1); |
| 391 | SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 392 | |
| 393 | GrDrawContext* drawContext = context->drawContext(); |
| 394 | if (!drawContext) { |
| 395 | return false; |
| 396 | } |
| 397 | |
| 398 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, topLeft, kTopLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 399 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 400 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, top, kTop_BoundaryMode, bounds); |
| 401 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, topRight, kTopRight_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 402 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 403 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, left, kLeft_BoundaryMode, bounds); |
| 404 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, interior, kInterior_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 405 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 406 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, right, kRight_BoundaryMode, bounds); |
| 407 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, bottomLeft, kBottomLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 408 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame^] | 409 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, bottom, kBottom_BoundaryMode, bounds); |
| 410 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, bottomRight, |
| 411 | kBottomRight_BoundaryMode, bounds); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 412 | WrapTexture(dst, bounds.width(), bounds.height(), result); |
| 413 | return true; |
| 414 | } |
| 415 | #endif |
| 416 | |
| 417 | class SkDiffuseLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 418 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 419 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter*, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 420 | const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 421 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 422 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 423 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 424 | SkScalar kd() const { return fKD; } |
| 425 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 426 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 427 | SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 428 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 429 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 430 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 431 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 432 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 433 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, |
| 434 | const SkIRect& bounds, BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 435 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 436 | |
| 437 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 438 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 439 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 440 | SkScalar fKD; |
| 441 | }; |
| 442 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 443 | class SkSpecularLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 444 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 445 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 446 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 447 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 448 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 449 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 450 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 451 | SkScalar ks() const { return fKS; } |
| 452 | SkScalar shininess() const { return fShininess; } |
| 453 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 454 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 455 | SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 456 | SkScalar shininess, SkImageFilter* input, const CropRect*); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 457 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 458 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 459 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 460 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 461 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, |
| 462 | const SkIRect& bounds, BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 463 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 464 | |
| 465 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 466 | SkScalar fKS; |
| 467 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 468 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 469 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 470 | }; |
| 471 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 472 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 473 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 474 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 475 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 476 | GrLightingEffect(GrTexture* texture, const SkLight* light, SkScalar surfaceScale, |
| 477 | const SkMatrix& matrix, BoundaryMode boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 478 | virtual ~GrLightingEffect(); |
| 479 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 480 | const SkLight* light() const { return fLight; } |
| 481 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 482 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 483 | BoundaryMode boundaryMode() const { return fBoundaryMode; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 484 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 485 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 486 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 487 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 488 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 489 | // lighting shaders are complicated. We just throw up our hands. |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 490 | inout->mulByUnknownFourComponents(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 491 | } |
| 492 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 493 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 494 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 495 | const SkLight* fLight; |
| 496 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 497 | SkMatrix fFilterMatrix; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 498 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 499 | }; |
| 500 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 501 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 502 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 503 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 504 | const SkLight* light, |
| 505 | SkScalar surfaceScale, |
| 506 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 507 | SkScalar kd, |
| 508 | BoundaryMode boundaryMode) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 509 | return SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 510 | light, |
| 511 | surfaceScale, |
| 512 | matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 513 | kd, |
| 514 | boundaryMode)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 515 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 516 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 517 | const char* name() const override { return "DiffuseLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 518 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 519 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 520 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 521 | GrGLFragmentProcessor* createGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 522 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 523 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 524 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 525 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 526 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 527 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 528 | GrDiffuseLightingEffect(GrTexture* texture, |
| 529 | const SkLight* light, |
| 530 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 531 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 532 | SkScalar kd, |
| 533 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 534 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 535 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 536 | typedef GrLightingEffect INHERITED; |
| 537 | SkScalar fKD; |
| 538 | }; |
| 539 | |
| 540 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 541 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 542 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 543 | const SkLight* light, |
| 544 | SkScalar surfaceScale, |
| 545 | const SkMatrix& matrix, |
| 546 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 547 | SkScalar shininess, |
| 548 | BoundaryMode boundaryMode) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 549 | return SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 550 | light, |
| 551 | surfaceScale, |
| 552 | matrix, |
| 553 | ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 554 | shininess, |
| 555 | boundaryMode)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 556 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 557 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 558 | const char* name() const override { return "SpecularLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 559 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 560 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 561 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 562 | GrGLFragmentProcessor* createGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 563 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 564 | SkScalar ks() const { return fKS; } |
| 565 | SkScalar shininess() const { return fShininess; } |
| 566 | |
| 567 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 568 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 569 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 570 | GrSpecularLightingEffect(GrTexture* texture, |
| 571 | const SkLight* light, |
| 572 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 573 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 574 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 575 | SkScalar shininess, |
| 576 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 577 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 578 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 579 | typedef GrLightingEffect INHERITED; |
| 580 | SkScalar fKS; |
| 581 | SkScalar fShininess; |
| 582 | }; |
| 583 | |
| 584 | /////////////////////////////////////////////////////////////////////////////// |
| 585 | |
| 586 | class GrGLLight { |
| 587 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 588 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 589 | |
| 590 | /** |
| 591 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 592 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 593 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 594 | void emitLightColorUniform(GrGLFPBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 595 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 596 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 597 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 598 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 599 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 600 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 601 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 602 | * and so this function only needs to be overridden if the light color varies spatially. |
| 603 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 604 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) = 0; |
| 605 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 606 | |
| 607 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 608 | // INHERITED::setData(). |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 609 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 610 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 611 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 612 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 613 | /** |
| 614 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 615 | * function. |
| 616 | */ |
| 617 | UniformHandle lightColorUni() const { return fColorUni; } |
| 618 | |
| 619 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 620 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 621 | |
| 622 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 623 | }; |
| 624 | |
| 625 | /////////////////////////////////////////////////////////////////////////////// |
| 626 | |
| 627 | class GrGLDistantLight : public GrGLLight { |
| 628 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 629 | virtual ~GrGLDistantLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 630 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 631 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 632 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 633 | private: |
| 634 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 635 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 636 | }; |
| 637 | |
| 638 | /////////////////////////////////////////////////////////////////////////////// |
| 639 | |
| 640 | class GrGLPointLight : public GrGLLight { |
| 641 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 642 | virtual ~GrGLPointLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 643 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 644 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 645 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 646 | private: |
| 647 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 648 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 649 | }; |
| 650 | |
| 651 | /////////////////////////////////////////////////////////////////////////////// |
| 652 | |
| 653 | class GrGLSpotLight : public GrGLLight { |
| 654 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 655 | virtual ~GrGLSpotLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 656 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 657 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
| 658 | void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 659 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 660 | private: |
| 661 | typedef GrGLLight INHERITED; |
| 662 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 663 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 664 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 665 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 666 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 667 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 668 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 669 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 670 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 671 | #else |
| 672 | |
| 673 | class GrGLLight; |
| 674 | |
| 675 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 676 | |
| 677 | }; |
| 678 | |
| 679 | /////////////////////////////////////////////////////////////////////////////// |
| 680 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 681 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 682 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 683 | SK_DECLARE_INST_COUNT(SkLight) |
| 684 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 685 | enum LightType { |
| 686 | kDistant_LightType, |
| 687 | kPoint_LightType, |
| 688 | kSpot_LightType, |
| 689 | }; |
| 690 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 691 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 692 | virtual GrGLLight* createGLLight() const = 0; |
| 693 | virtual bool isEqual(const SkLight& other) const { |
| 694 | return fColor == other.fColor; |
| 695 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 696 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 697 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 698 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 699 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 700 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 701 | void flattenLight(SkWriteBuffer& buffer) const; |
| 702 | static SkLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 703 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 704 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 705 | SkLight(SkColor color) |
| 706 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 707 | SkIntToScalar(SkColorGetG(color)), |
| 708 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 709 | SkLight(const SkPoint3& color) |
| 710 | : fColor(color) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 711 | SkLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 712 | fColor = readPoint3(buffer); |
| 713 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 714 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 715 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 716 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 717 | |
| 718 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 719 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 720 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 721 | }; |
| 722 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 723 | /////////////////////////////////////////////////////////////////////////////// |
| 724 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 725 | class SkDistantLight : public SkLight { |
| 726 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 727 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 728 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 729 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 730 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 731 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 732 | return fDirection; |
| 733 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 734 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 735 | LightType type() const override { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 736 | const SkPoint3& direction() const { return fDirection; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 737 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 738 | #if SK_SUPPORT_GPU |
| 739 | return SkNEW(GrGLDistantLight); |
| 740 | #else |
| 741 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 742 | return NULL; |
| 743 | #endif |
| 744 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 745 | bool requiresFragmentPosition() const override { return false; } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 746 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 747 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 748 | if (other.type() != kDistant_LightType) { |
| 749 | return false; |
| 750 | } |
| 751 | |
| 752 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 753 | return INHERITED::isEqual(other) && |
| 754 | fDirection == o.fDirection; |
| 755 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 756 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 757 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 758 | fDirection = readPoint3(buffer); |
| 759 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 760 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 761 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 762 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 763 | : INHERITED(color), fDirection(direction) { |
| 764 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 765 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 766 | return new SkDistantLight(direction(), color()); |
| 767 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 768 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 769 | writePoint3(fDirection, buffer); |
| 770 | } |
| 771 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 772 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 773 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 774 | SkPoint3 fDirection; |
| 775 | }; |
| 776 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 777 | /////////////////////////////////////////////////////////////////////////////// |
| 778 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 779 | class SkPointLight : public SkLight { |
| 780 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 781 | SkPointLight(const SkPoint3& location, SkColor color) |
| 782 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 783 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 784 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 785 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 786 | fLocation.fY - SkIntToScalar(y), |
| 787 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 788 | direction.normalize(); |
| 789 | return direction; |
| 790 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 791 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 792 | LightType type() const override { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 793 | const SkPoint3& location() const { return fLocation; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 794 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 795 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 796 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 797 | #else |
| 798 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 799 | return NULL; |
| 800 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 801 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 802 | bool requiresFragmentPosition() const override { return true; } |
| 803 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 804 | if (other.type() != kPoint_LightType) { |
| 805 | return false; |
| 806 | } |
| 807 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 808 | return INHERITED::isEqual(other) && |
| 809 | fLocation == o.fLocation; |
| 810 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 811 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 812 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 813 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 814 | // Use X scale and Y scale on Z and average the result |
| 815 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 816 | matrix.mapVectors(&locationZ, 1); |
| 817 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 818 | return new SkPointLight(location, color()); |
| 819 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 820 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 821 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 822 | fLocation = readPoint3(buffer); |
| 823 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 824 | |
| 825 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 826 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 827 | : INHERITED(color), fLocation(location) {} |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 828 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 829 | writePoint3(fLocation, buffer); |
| 830 | } |
| 831 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 832 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 833 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 834 | SkPoint3 fLocation; |
| 835 | }; |
| 836 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 837 | /////////////////////////////////////////////////////////////////////////////// |
| 838 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 839 | class SkSpotLight : public SkLight { |
| 840 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 841 | SkSpotLight(const SkPoint3& location, |
| 842 | const SkPoint3& target, |
| 843 | SkScalar specularExponent, |
| 844 | SkScalar cutoffAngle, |
| 845 | SkColor color) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 846 | : INHERITED(color), |
| 847 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 848 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 849 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 850 | { |
| 851 | fS = target - location; |
| 852 | fS.normalize(); |
| 853 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 854 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 855 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 856 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 857 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 858 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 859 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 860 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 861 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 862 | // Use X scale and Y scale on Z and average the result |
| 863 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 864 | matrix.mapVectors(&locationZ, 1); |
| 865 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 866 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 867 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 868 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 869 | matrix.mapVectors(&targetZ, 1); |
| 870 | SkPoint3 target(target2.fX, target2.fY, SkScalarAve(targetZ.fX, targetZ.fY)); |
| 871 | SkPoint3 s = target - location; |
| 872 | s.normalize(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 873 | return new SkSpotLight(location, |
| 874 | target, |
| 875 | fSpecularExponent, |
| 876 | fCosOuterConeAngle, |
| 877 | fCosInnerConeAngle, |
| 878 | fConeScale, |
| 879 | s, |
| 880 | color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 881 | } |
| 882 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 883 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 884 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 885 | fLocation.fY - SkIntToScalar(y), |
| 886 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 887 | direction.normalize(); |
| 888 | return direction; |
| 889 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 890 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 891 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 892 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 893 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 894 | } |
| 895 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 896 | if (cosAngle < fCosInnerConeAngle) { |
| 897 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 898 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 899 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 900 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 901 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 902 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 903 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 904 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 905 | #else |
| 906 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 907 | return NULL; |
| 908 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 909 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 910 | bool requiresFragmentPosition() const override { return true; } |
| 911 | LightType type() const override { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 912 | const SkPoint3& location() const { return fLocation; } |
| 913 | const SkPoint3& target() const { return fTarget; } |
| 914 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 915 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 916 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 917 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 918 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 919 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 920 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 921 | fLocation = readPoint3(buffer); |
| 922 | fTarget = readPoint3(buffer); |
| 923 | fSpecularExponent = buffer.readScalar(); |
| 924 | fCosOuterConeAngle = buffer.readScalar(); |
| 925 | fCosInnerConeAngle = buffer.readScalar(); |
| 926 | fConeScale = buffer.readScalar(); |
| 927 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 928 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 929 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 930 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 931 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 932 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 933 | protected: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 934 | SkSpotLight(const SkPoint3& location, |
| 935 | const SkPoint3& target, |
| 936 | SkScalar specularExponent, |
| 937 | SkScalar cosOuterConeAngle, |
| 938 | SkScalar cosInnerConeAngle, |
| 939 | SkScalar coneScale, |
| 940 | const SkPoint3& s, |
| 941 | const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 942 | : INHERITED(color), |
| 943 | fLocation(location), |
| 944 | fTarget(target), |
| 945 | fSpecularExponent(specularExponent), |
| 946 | fCosOuterConeAngle(cosOuterConeAngle), |
| 947 | fCosInnerConeAngle(cosInnerConeAngle), |
| 948 | fConeScale(coneScale), |
| 949 | fS(s) |
| 950 | { |
| 951 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 952 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 953 | writePoint3(fLocation, buffer); |
| 954 | writePoint3(fTarget, buffer); |
| 955 | buffer.writeScalar(fSpecularExponent); |
| 956 | buffer.writeScalar(fCosOuterConeAngle); |
| 957 | buffer.writeScalar(fCosInnerConeAngle); |
| 958 | buffer.writeScalar(fConeScale); |
| 959 | writePoint3(fS, buffer); |
| 960 | } |
| 961 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 962 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 963 | if (other.type() != kSpot_LightType) { |
| 964 | return false; |
| 965 | } |
| 966 | |
| 967 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 968 | return INHERITED::isEqual(other) && |
| 969 | fLocation == o.fLocation && |
| 970 | fTarget == o.fTarget && |
| 971 | fSpecularExponent == o.fSpecularExponent && |
| 972 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 973 | } |
| 974 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 975 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 976 | static const SkScalar kSpecularExponentMin; |
| 977 | static const SkScalar kSpecularExponentMax; |
| 978 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 979 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 980 | SkPoint3 fLocation; |
| 981 | SkPoint3 fTarget; |
| 982 | SkScalar fSpecularExponent; |
| 983 | SkScalar fCosOuterConeAngle; |
| 984 | SkScalar fCosInnerConeAngle; |
| 985 | SkScalar fConeScale; |
| 986 | SkPoint3 fS; |
| 987 | }; |
| 988 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 989 | // According to the spec, the specular term should be in the range [1, 128] : |
| 990 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 991 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 992 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 993 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 994 | /////////////////////////////////////////////////////////////////////////////// |
| 995 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 996 | void SkLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 997 | // Write type first, then baseclass, then subclass. |
| 998 | buffer.writeInt(this->type()); |
| 999 | writePoint3(fColor, buffer); |
| 1000 | this->onFlattenLight(buffer); |
| 1001 | } |
| 1002 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1003 | /*static*/ SkLight* SkLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1004 | // Read type first. |
| 1005 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 1006 | switch (type) { |
| 1007 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 1008 | // then subclass, same order as flattenLight. |
| 1009 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 1010 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 1011 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 1012 | default: |
| 1013 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1014 | buffer.validate(false); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1015 | return NULL; |
| 1016 | } |
| 1017 | } |
| 1018 | /////////////////////////////////////////////////////////////////////////////// |
| 1019 | |
senorblanco | 9ea3d57 | 2014-07-08 09:16:22 -0700 | [diff] [blame] | 1020 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1021 | SkImageFilter* input, const CropRect* cropRect) |
| 1022 | : INHERITED(1, &input, cropRect) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1023 | , fLight(SkRef(light)) |
| 1024 | , fSurfaceScale(surfaceScale / 255) |
| 1025 | {} |
| 1026 | |
| 1027 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 1028 | SkColor lightColor, |
| 1029 | SkScalar surfaceScale, |
| 1030 | SkScalar kd, |
| 1031 | SkImageFilter* input, |
| 1032 | const CropRect* cropRect) { |
| 1033 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 1034 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1035 | } |
| 1036 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1037 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 1038 | SkColor lightColor, |
| 1039 | SkScalar surfaceScale, |
| 1040 | SkScalar kd, |
| 1041 | SkImageFilter* input, |
| 1042 | const CropRect* cropRect) { |
| 1043 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 1044 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1045 | } |
| 1046 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1047 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 1048 | const SkPoint3& target, |
| 1049 | SkScalar specularExponent, |
| 1050 | SkScalar cutoffAngle, |
| 1051 | SkColor lightColor, |
| 1052 | SkScalar surfaceScale, |
| 1053 | SkScalar kd, |
| 1054 | SkImageFilter* input, |
| 1055 | const CropRect* cropRect) { |
| 1056 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 1057 | cutoffAngle, lightColor))); |
| 1058 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1059 | } |
| 1060 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1061 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 1062 | SkColor lightColor, |
| 1063 | SkScalar surfaceScale, |
| 1064 | SkScalar ks, |
| 1065 | SkScalar shine, |
| 1066 | SkImageFilter* input, |
| 1067 | const CropRect* cropRect) { |
| 1068 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 1069 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1070 | } |
| 1071 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1072 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 1073 | SkColor lightColor, |
| 1074 | SkScalar surfaceScale, |
| 1075 | SkScalar ks, |
| 1076 | SkScalar shine, |
| 1077 | SkImageFilter* input, |
| 1078 | const CropRect* cropRect) { |
| 1079 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 1080 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1081 | } |
| 1082 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1083 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 1084 | const SkPoint3& target, |
| 1085 | SkScalar specularExponent, |
| 1086 | SkScalar cutoffAngle, |
| 1087 | SkColor lightColor, |
| 1088 | SkScalar surfaceScale, |
| 1089 | SkScalar ks, |
| 1090 | SkScalar shine, |
| 1091 | SkImageFilter* input, |
| 1092 | const CropRect* cropRect) { |
| 1093 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 1094 | cutoffAngle, lightColor))); |
| 1095 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1096 | } |
| 1097 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1098 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1099 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1100 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1101 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1102 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1103 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1104 | } |
| 1105 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1106 | /////////////////////////////////////////////////////////////////////////////// |
| 1107 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1108 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1109 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1110 | if (NULL == light) { |
| 1111 | return NULL; |
| 1112 | } |
| 1113 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
| 1114 | return NULL; |
| 1115 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1116 | // According to the spec, kd can be any non-negative number : |
| 1117 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1118 | if (kd < 0) { |
| 1119 | return NULL; |
| 1120 | } |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1121 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, (light, surfaceScale, kd, input, cropRect)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1122 | } |
| 1123 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1124 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkLight* light, |
| 1125 | SkScalar surfaceScale, |
| 1126 | SkScalar kd, |
| 1127 | SkImageFilter* input, |
| 1128 | const CropRect* cropRect) |
| 1129 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1130 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1131 | { |
| 1132 | } |
| 1133 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1134 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1135 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1136 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1137 | SkScalar surfaceScale = buffer.readScalar(); |
| 1138 | SkScalar kd = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1139 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1140 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1141 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1142 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1143 | this->INHERITED::flatten(buffer); |
| 1144 | buffer.writeScalar(fKD); |
| 1145 | } |
| 1146 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1147 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1148 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1149 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1150 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1151 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1152 | SkImageFilter* input = getInput(0); |
| 1153 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1154 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1155 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1156 | return false; |
| 1157 | } |
| 1158 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1159 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1160 | return false; |
| 1161 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1162 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1163 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1164 | return false; |
| 1165 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1166 | |
| 1167 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1168 | return false; |
| 1169 | } |
| 1170 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1171 | SkAutoLockPixels alp(src); |
| 1172 | if (!src.getPixels()) { |
| 1173 | return false; |
| 1174 | } |
| 1175 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1176 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1177 | return false; |
| 1178 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1179 | |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1180 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1181 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1182 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1183 | offset->fX = bounds.left(); |
| 1184 | offset->fY = bounds.top(); |
| 1185 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1186 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1187 | case SkLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1188 | lightBitmap<DiffuseLightingType, SkDistantLight>(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::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1196 | lightBitmap<DiffuseLightingType, SkPointLight>(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 | case SkLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1204 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, |
| 1205 | transformedLight, |
| 1206 | src, |
| 1207 | dst, |
| 1208 | surfaceScale(), |
| 1209 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1210 | break; |
| 1211 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1212 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1213 | return true; |
| 1214 | } |
| 1215 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1216 | #ifndef SK_IGNORE_TO_STRING |
| 1217 | void SkDiffuseLightingImageFilter::toString(SkString* str) const { |
| 1218 | str->appendf("SkDiffuseLightingImageFilter: ("); |
| 1219 | str->appendf("kD: %f\n", fKD); |
| 1220 | str->append(")"); |
| 1221 | } |
| 1222 | #endif |
| 1223 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1224 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1225 | GrFragmentProcessor* SkDiffuseLightingImageFilter::getFragmentProcessor( |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1226 | GrTexture* texture, |
| 1227 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1228 | const SkIRect&, |
| 1229 | BoundaryMode boundaryMode |
| 1230 | ) const { |
| 1231 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
| 1232 | return GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd(), boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1233 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1234 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1235 | |
| 1236 | /////////////////////////////////////////////////////////////////////////////// |
| 1237 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1238 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1239 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1240 | if (NULL == light) { |
| 1241 | return NULL; |
| 1242 | } |
| 1243 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
| 1244 | return NULL; |
| 1245 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1246 | // According to the spec, ks can be any non-negative number : |
| 1247 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1248 | if (ks < 0) { |
| 1249 | return NULL; |
| 1250 | } |
| 1251 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1252 | (light, surfaceScale, ks, shininess, input, cropRect)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1253 | } |
| 1254 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1255 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkLight* light, |
| 1256 | SkScalar surfaceScale, |
| 1257 | SkScalar ks, |
| 1258 | SkScalar shininess, |
| 1259 | SkImageFilter* input, |
| 1260 | const CropRect* cropRect) |
| 1261 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1262 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1263 | fShininess(shininess) |
| 1264 | { |
| 1265 | } |
| 1266 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1267 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1268 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1269 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1270 | SkScalar surfaceScale = buffer.readScalar(); |
| 1271 | SkScalar ks = buffer.readScalar(); |
| 1272 | SkScalar shine = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1273 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1274 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1275 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1276 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1277 | this->INHERITED::flatten(buffer); |
| 1278 | buffer.writeScalar(fKS); |
| 1279 | buffer.writeScalar(fShininess); |
| 1280 | } |
| 1281 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1282 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1283 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1284 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1285 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1286 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1287 | SkImageFilter* input = getInput(0); |
| 1288 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1289 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1290 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1291 | return false; |
| 1292 | } |
| 1293 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1294 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1295 | return false; |
| 1296 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1297 | |
| 1298 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1299 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1300 | return false; |
| 1301 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1302 | |
| 1303 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1304 | return false; |
| 1305 | } |
| 1306 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1307 | SkAutoLockPixels alp(src); |
| 1308 | if (!src.getPixels()) { |
| 1309 | return false; |
| 1310 | } |
| 1311 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1312 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1313 | return false; |
| 1314 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1315 | |
| 1316 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1317 | offset->fX = bounds.left(); |
| 1318 | offset->fY = bounds.top(); |
| 1319 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1320 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1321 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1322 | case SkLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1323 | lightBitmap<SpecularLightingType, SkDistantLight>(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::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1331 | lightBitmap<SpecularLightingType, SkPointLight>(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 | case SkLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1339 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, |
| 1340 | transformedLight, |
| 1341 | src, |
| 1342 | dst, |
| 1343 | surfaceScale(), |
| 1344 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1345 | break; |
| 1346 | } |
| 1347 | return true; |
| 1348 | } |
| 1349 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1350 | #ifndef SK_IGNORE_TO_STRING |
| 1351 | void SkSpecularLightingImageFilter::toString(SkString* str) const { |
| 1352 | str->appendf("SkSpecularLightingImageFilter: ("); |
| 1353 | str->appendf("kS: %f shininess: %f", fKS, fShininess); |
| 1354 | str->append(")"); |
| 1355 | } |
| 1356 | #endif |
| 1357 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1358 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1359 | GrFragmentProcessor* SkSpecularLightingImageFilter::getFragmentProcessor( |
| 1360 | GrTexture* texture, |
| 1361 | const SkMatrix& matrix, |
| 1362 | const SkIRect&, |
| 1363 | BoundaryMode boundaryMode) const { |
| 1364 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
| 1365 | return GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess(), |
| 1366 | boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1367 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1368 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1369 | |
| 1370 | /////////////////////////////////////////////////////////////////////////////// |
| 1371 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1372 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1373 | |
| 1374 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1375 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1376 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1377 | SkScalarToFloat(random->nextSScalar1()), |
| 1378 | SkScalarToFloat(random->nextSScalar1())); |
| 1379 | } |
| 1380 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1381 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1382 | int type = random->nextULessThan(3); |
| 1383 | switch (type) { |
| 1384 | case 0: { |
| 1385 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1386 | } |
| 1387 | case 1: { |
| 1388 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1389 | } |
| 1390 | case 2: { |
| 1391 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1392 | random_point3(random), |
| 1393 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1394 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1395 | random->nextU())); |
| 1396 | } |
| 1397 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1398 | SkFAIL("Unexpected value."); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1399 | return NULL; |
| 1400 | } |
| 1401 | } |
| 1402 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1403 | SkString emitNormalFunc(BoundaryMode mode, |
| 1404 | const char* pointToNormalName, |
| 1405 | const char* sobelFuncName) { |
| 1406 | SkString result; |
| 1407 | switch (mode) { |
| 1408 | case kTopLeft_BoundaryMode: |
| 1409 | result.printf("\treturn %s(%s(0.0, 0.0, m[4], m[5], m[7], m[8], %g),\n" |
| 1410 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1411 | "\t surfaceScale);\n", |
| 1412 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1413 | sobelFuncName, gTwoThirds); |
| 1414 | break; |
| 1415 | case kTop_BoundaryMode: |
| 1416 | result.printf("\treturn %s(%s(0.0, 0.0, m[3], m[5], m[6], m[8], %g),\n" |
| 1417 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1418 | "\t surfaceScale);\n", |
| 1419 | pointToNormalName, sobelFuncName, gOneThird, |
| 1420 | sobelFuncName, gOneHalf); |
| 1421 | break; |
| 1422 | case kTopRight_BoundaryMode: |
| 1423 | result.printf("\treturn %s(%s( 0.0, 0.0, m[3], m[4], m[6], m[7], %g),\n" |
| 1424 | "\t %s(m[3], m[6], m[4], m[7], 0.0, 0.0, %g),\n" |
| 1425 | "\t surfaceScale);\n", |
| 1426 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1427 | sobelFuncName, gTwoThirds); |
| 1428 | break; |
| 1429 | case kLeft_BoundaryMode: |
| 1430 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], m[7], m[8], %g),\n" |
| 1431 | "\t %s( 0.0, 0.0, m[1], m[7], m[2], m[8], %g),\n" |
| 1432 | "\t surfaceScale);\n", |
| 1433 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1434 | sobelFuncName, gOneThird); |
| 1435 | break; |
| 1436 | case kInterior_BoundaryMode: |
| 1437 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], %g),\n" |
| 1438 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], %g),\n" |
| 1439 | "\t surfaceScale);\n", |
| 1440 | pointToNormalName, sobelFuncName, gOneQuarter, |
| 1441 | sobelFuncName, gOneQuarter); |
| 1442 | break; |
| 1443 | case kRight_BoundaryMode: |
| 1444 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], m[6], m[7], %g),\n" |
| 1445 | "\t %s(m[0], m[6], m[1], m[7], 0.0, 0.0, %g),\n" |
| 1446 | "\t surfaceScale);\n", |
| 1447 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1448 | sobelFuncName, gOneThird); |
| 1449 | break; |
| 1450 | case kBottomLeft_BoundaryMode: |
| 1451 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], 0.0, 0.0, %g),\n" |
| 1452 | "\t %s( 0.0, 0.0, m[1], m[4], m[2], m[5], %g),\n" |
| 1453 | "\t surfaceScale);\n", |
| 1454 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1455 | sobelFuncName, gTwoThirds); |
| 1456 | break; |
| 1457 | case kBottom_BoundaryMode: |
| 1458 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], 0.0, 0.0, %g),\n" |
| 1459 | "\t %s(m[0], m[3], m[1], m[4], m[2], m[5], %g),\n" |
| 1460 | "\t surfaceScale);\n", |
| 1461 | pointToNormalName, sobelFuncName, gOneThird, |
| 1462 | sobelFuncName, gOneHalf); |
| 1463 | break; |
| 1464 | case kBottomRight_BoundaryMode: |
| 1465 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], 0.0, 0.0, %g),\n" |
| 1466 | "\t %s(m[0], m[3], m[1], m[4], 0.0, 0.0, %g),\n" |
| 1467 | "\t surfaceScale);\n", |
| 1468 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1469 | sobelFuncName, gTwoThirds); |
| 1470 | break; |
| 1471 | default: |
| 1472 | SkASSERT(false); |
| 1473 | break; |
| 1474 | } |
| 1475 | return result; |
| 1476 | } |
| 1477 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1478 | } |
| 1479 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1480 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1481 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1482 | GrGLLightingEffect(const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1483 | virtual ~GrGLLightingEffect(); |
| 1484 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1485 | void emitCode(GrGLFPBuilder*, |
| 1486 | const GrFragmentProcessor&, |
| 1487 | const char* outputColor, |
| 1488 | const char* inputColor, |
| 1489 | const TransformedCoordsArray&, |
| 1490 | const TextureSamplerArray&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1491 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1492 | static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1493 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1494 | /** |
| 1495 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1496 | */ |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1497 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1498 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1499 | protected: |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1500 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1501 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1502 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1503 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1504 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1505 | UniformHandle fImageIncrementUni; |
| 1506 | UniformHandle fSurfaceScaleUni; |
| 1507 | GrGLLight* fLight; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1508 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1509 | }; |
| 1510 | |
| 1511 | /////////////////////////////////////////////////////////////////////////////// |
| 1512 | |
| 1513 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1514 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1515 | GrGLDiffuseLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1516 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
| 1517 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1518 | |
| 1519 | private: |
| 1520 | typedef GrGLLightingEffect INHERITED; |
| 1521 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1522 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1523 | }; |
| 1524 | |
| 1525 | /////////////////////////////////////////////////////////////////////////////// |
| 1526 | |
| 1527 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1528 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1529 | GrGLSpecularLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1530 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
| 1531 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1532 | |
| 1533 | private: |
| 1534 | typedef GrGLLightingEffect INHERITED; |
| 1535 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1536 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1537 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1538 | }; |
| 1539 | |
| 1540 | /////////////////////////////////////////////////////////////////////////////// |
| 1541 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1542 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1543 | const SkLight* light, |
| 1544 | SkScalar surfaceScale, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1545 | const SkMatrix& matrix, |
| 1546 | BoundaryMode boundaryMode) |
bsalomon | 6267f81 | 2014-08-29 15:05:53 -0700 | [diff] [blame] | 1547 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1548 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1549 | , fSurfaceScale(surfaceScale) |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1550 | , fFilterMatrix(matrix) |
| 1551 | , fBoundaryMode(boundaryMode) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1552 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1553 | if (light->requiresFragmentPosition()) { |
| 1554 | this->setWillReadFragmentPosition(); |
| 1555 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1556 | } |
| 1557 | |
| 1558 | GrLightingEffect::~GrLightingEffect() { |
| 1559 | fLight->unref(); |
| 1560 | } |
| 1561 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1562 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1563 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 1564 | return fLight->isEqual(*s.fLight) && |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1565 | fSurfaceScale == s.fSurfaceScale && |
| 1566 | fBoundaryMode == s.fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1567 | } |
| 1568 | |
| 1569 | /////////////////////////////////////////////////////////////////////////////// |
| 1570 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1571 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1572 | const SkLight* light, |
| 1573 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1574 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1575 | SkScalar kd, |
| 1576 | BoundaryMode boundaryMode) |
| 1577 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), fKD(kd) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1578 | this->initClassID<GrDiffuseLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1579 | } |
| 1580 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1581 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1582 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1583 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1584 | this->kd() == s.kd(); |
| 1585 | } |
| 1586 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1587 | void GrDiffuseLightingEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1588 | GrProcessorKeyBuilder* b) const { |
| 1589 | GrGLDiffuseLightingEffect::GenKey(*this, caps, b); |
| 1590 | } |
| 1591 | |
| 1592 | GrGLFragmentProcessor* GrDiffuseLightingEffect::createGLInstance() const { |
| 1593 | return SkNEW_ARGS(GrGLDiffuseLightingEffect, (*this)); |
| 1594 | } |
| 1595 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1596 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1597 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1598 | GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1599 | GrContext* context, |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 1600 | const GrCaps&, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1601 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1602 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1603 | SkScalar kd = random->nextUScalar1(); |
| 1604 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1605 | SkMatrix matrix; |
| 1606 | for (int i = 0; i < 9; i++) { |
| 1607 | matrix[i] = random->nextUScalar1(); |
| 1608 | } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1609 | BoundaryMode mode = static_cast<BoundaryMode>(random->nextU() % kBoundaryModeCount); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1610 | return GrDiffuseLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1611 | light, surfaceScale, matrix, kd, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1612 | } |
| 1613 | |
| 1614 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1615 | /////////////////////////////////////////////////////////////////////////////// |
| 1616 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1617 | GrGLLightingEffect::GrGLLightingEffect(const GrProcessor& fp) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1618 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1619 | fLight = m.light()->createGLLight(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1620 | fBoundaryMode = m.boundaryMode(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1621 | } |
| 1622 | |
| 1623 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1624 | delete fLight; |
| 1625 | } |
| 1626 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1627 | void GrGLLightingEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1628 | const GrFragmentProcessor&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1629 | const char* outputColor, |
| 1630 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1631 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1632 | const TextureSamplerArray& samplers) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1633 | fImageIncrementUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1634 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1635 | "ImageIncrement"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1636 | fSurfaceScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1637 | kFloat_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1638 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1639 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1640 | SkString lightFunc; |
| 1641 | this->emitLightFunc(builder, &lightFunc); |
| 1642 | static const GrGLShaderVar gSobelArgs[] = { |
| 1643 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1644 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1645 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1646 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1647 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1648 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1649 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1650 | }; |
| 1651 | SkString sobelFuncName; |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1652 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1653 | SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0); |
| 1654 | |
| 1655 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1656 | "sobel", |
| 1657 | SK_ARRAY_COUNT(gSobelArgs), |
| 1658 | gSobelArgs, |
| 1659 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1660 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1661 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1662 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1663 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1664 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1665 | }; |
| 1666 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1667 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1668 | "pointToNormal", |
| 1669 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1670 | gPointToNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1671 | "\treturn normalize(vec3(-x * scale, -y * scale, 1));\n", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1672 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1673 | |
| 1674 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1675 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1676 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1677 | }; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1678 | SkString normalBody = emitNormalFunc(fBoundaryMode, |
| 1679 | pointToNormalName.c_str(), |
| 1680 | sobelFuncName.c_str()); |
| 1681 | SkString normalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1682 | fsBuilder->emitFunction(kVec3f_GrSLType, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1683 | "normal", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1684 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1685 | gInteriorNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1686 | normalBody.c_str(), |
| 1687 | &normalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1688 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1689 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1690 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1691 | |
| 1692 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1693 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1694 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1695 | int index = 0; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1696 | for (int dy = 1; dy >= -1; dy--) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1697 | for (int dx = -1; dx <= 1; dx++) { |
| 1698 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1699 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1700 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
| 1701 | fsBuilder->appendTextureLookup(samplers[0], texCoords.c_str()); |
| 1702 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1703 | } |
| 1704 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1705 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1706 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1707 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1708 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1709 | fsBuilder->codeAppend(";\n"); |
| 1710 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1711 | outputColor, lightFunc.c_str(), normalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1712 | fLight->emitLightColor(builder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1713 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1714 | SkString modulate; |
egdaniel | 089f8de | 2014-10-09 10:34:58 -0700 | [diff] [blame] | 1715 | GrGLSLMulVarBy4f(&modulate, outputColor, inputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1716 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1717 | } |
| 1718 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1719 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1720 | const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1721 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
| 1722 | b->add32(lighting.boundaryMode() << 2 | lighting.light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1723 | } |
| 1724 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1725 | void GrGLLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1726 | const GrProcessor& proc) { |
| 1727 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1728 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1729 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1730 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1731 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1732 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1733 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1734 | } |
| 1735 | |
| 1736 | /////////////////////////////////////////////////////////////////////////////// |
| 1737 | |
| 1738 | /////////////////////////////////////////////////////////////////////////////// |
| 1739 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1740 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrProcessor& proc) |
| 1741 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1742 | } |
| 1743 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1744 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1745 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1746 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1747 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1748 | "KD", &kd); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1749 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1750 | static const GrGLShaderVar gLightArgs[] = { |
| 1751 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1752 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1753 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1754 | }; |
| 1755 | SkString lightBody; |
| 1756 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1757 | 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] | 1758 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1759 | "light", |
| 1760 | SK_ARRAY_COUNT(gLightArgs), |
| 1761 | gLightArgs, |
| 1762 | lightBody.c_str(), |
| 1763 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1764 | } |
| 1765 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1766 | void GrGLDiffuseLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1767 | const GrProcessor& proc) { |
| 1768 | INHERITED::setData(pdman, proc); |
| 1769 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1770 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1771 | } |
| 1772 | |
| 1773 | /////////////////////////////////////////////////////////////////////////////// |
| 1774 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1775 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1776 | const SkLight* light, |
| 1777 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1778 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1779 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1780 | SkScalar shininess, |
| 1781 | BoundaryMode boundaryMode) |
| 1782 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1783 | fKS(ks), |
| 1784 | fShininess(shininess) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1785 | this->initClassID<GrSpecularLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1786 | } |
| 1787 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1788 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1789 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1790 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1791 | this->ks() == s.ks() && |
| 1792 | this->shininess() == s.shininess(); |
| 1793 | } |
| 1794 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1795 | void GrSpecularLightingEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1796 | GrProcessorKeyBuilder* b) const { |
| 1797 | GrGLSpecularLightingEffect::GenKey(*this, caps, b); |
| 1798 | } |
| 1799 | |
| 1800 | GrGLFragmentProcessor* GrSpecularLightingEffect::createGLInstance() const { |
| 1801 | return SkNEW_ARGS(GrGLSpecularLightingEffect, (*this)); |
| 1802 | } |
| 1803 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1804 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1805 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1806 | GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
| 1807 | GrContext* context, |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 1808 | const GrCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1809 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1810 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1811 | SkScalar ks = random->nextUScalar1(); |
| 1812 | SkScalar shininess = random->nextUScalar1(); |
| 1813 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1814 | SkMatrix matrix; |
| 1815 | for (int i = 0; i < 9; i++) { |
| 1816 | matrix[i] = random->nextUScalar1(); |
| 1817 | } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1818 | BoundaryMode mode = static_cast<BoundaryMode>(random->nextU() % kBoundaryModeCount); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1819 | return GrSpecularLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1820 | light, surfaceScale, matrix, ks, shininess, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1821 | } |
| 1822 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1823 | /////////////////////////////////////////////////////////////////////////////// |
| 1824 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1825 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrProcessor& proc) |
| 1826 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1827 | } |
| 1828 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1829 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1830 | const char* ks; |
| 1831 | const char* shininess; |
| 1832 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1833 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1834 | kFloat_GrSLType, kDefault_GrSLPrecision, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1835 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1836 | kFloat_GrSLType, |
| 1837 | kDefault_GrSLPrecision, |
| 1838 | "Shininess", |
| 1839 | &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1840 | |
| 1841 | static const GrGLShaderVar gLightArgs[] = { |
| 1842 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1843 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1844 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1845 | }; |
| 1846 | SkString lightBody; |
| 1847 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1848 | 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] | 1849 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1850 | 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] | 1851 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1852 | "light", |
| 1853 | SK_ARRAY_COUNT(gLightArgs), |
| 1854 | gLightArgs, |
| 1855 | lightBody.c_str(), |
| 1856 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1857 | } |
| 1858 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1859 | void GrGLSpecularLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1860 | const GrProcessor& effect) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1861 | INHERITED::setData(pdman, effect); |
| 1862 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1863 | pdman.set1f(fKSUni, spec.ks()); |
| 1864 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1865 | } |
| 1866 | |
| 1867 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1868 | void GrGLLight::emitLightColorUniform(GrGLFPBuilder* builder) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1869 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1870 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1871 | "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1872 | } |
| 1873 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1874 | void GrGLLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1875 | const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1876 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1879 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1880 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1881 | setUniformPoint3(pdman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1882 | } |
| 1883 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1884 | /////////////////////////////////////////////////////////////////////////////// |
| 1885 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1886 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1887 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1888 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1889 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1890 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1891 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1892 | } |
| 1893 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1894 | void GrGLDistantLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1895 | const char* dir; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1896 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1897 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1898 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1899 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1900 | } |
| 1901 | |
| 1902 | /////////////////////////////////////////////////////////////////////////////// |
| 1903 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1904 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1905 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1906 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1907 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1908 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1909 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1910 | } |
| 1911 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1912 | void GrGLPointLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1913 | const char* loc; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1914 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1915 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1916 | "LightLocation", &loc); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1917 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1918 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1919 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1920 | } |
| 1921 | |
| 1922 | /////////////////////////////////////////////////////////////////////////////// |
| 1923 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1924 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1925 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1926 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1927 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1928 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1929 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1930 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1931 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1932 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1933 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1934 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1935 | } |
| 1936 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1937 | void GrGLSpotLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1938 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1939 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1940 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1941 | "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1942 | |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1943 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1944 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1945 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1946 | } |
| 1947 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1948 | void GrGLSpotLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1949 | const char *surfaceToLight) { |
| 1950 | |
| 1951 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1952 | |
| 1953 | const char* exponent; |
| 1954 | const char* cosInner; |
| 1955 | const char* cosOuter; |
| 1956 | const char* coneScale; |
| 1957 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1958 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1959 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1960 | "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1961 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1962 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1963 | "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1964 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1965 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1966 | "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1967 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1968 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1969 | "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1970 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1971 | kVec3f_GrSLType, kDefault_GrSLPrecision, "S", &s); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1972 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1973 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1974 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1975 | }; |
| 1976 | SkString lightColorBody; |
| 1977 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1978 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1979 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1980 | lightColorBody.appendf("\t}\n"); |
| 1981 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1982 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1983 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1984 | color, cosOuter, coneScale); |
| 1985 | lightColorBody.appendf("\t}\n"); |
| 1986 | lightColorBody.appendf("\treturn %s;\n", color); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1987 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1988 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1989 | "lightColor", |
| 1990 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1991 | gLightColorArgs, |
| 1992 | lightColorBody.c_str(), |
| 1993 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1994 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1995 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1996 | } |
| 1997 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1998 | #endif |
| 1999 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2000 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 2001 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 2002 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2003 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |