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 |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame^] | 18 | #include "GrContext.h" |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 19 | #include "GrDrawContext.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 20 | #include "GrFragmentProcessor.h" |
| 21 | #include "GrInvariantOutput.h" |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame^] | 22 | #include "GrPaint.h" |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 23 | #include "effects/GrSingleTextureEffect.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 24 | #include "gl/GrGLProcessor.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 25 | #include "gl/builders/GrGLProgramBuilder.h" |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 26 | |
| 27 | class GrGLDiffuseLightingEffect; |
| 28 | class GrGLSpecularLightingEffect; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 29 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 30 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 31 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 32 | #endif |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 33 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 34 | namespace { |
| 35 | |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 36 | const SkScalar gOneThird = SkIntToScalar(1) / 3; |
| 37 | const SkScalar gTwoThirds = SkIntToScalar(2) / 3; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 38 | const SkScalar gOneHalf = 0.5f; |
| 39 | const SkScalar gOneQuarter = 0.25f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 40 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 41 | #if SK_SUPPORT_GPU |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 42 | void setUniformPoint3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 43 | const SkPoint3& point) { |
bsalomon@google.com | b9119a6 | 2012-07-25 17:55:26 +0000 | [diff] [blame] | 44 | GR_STATIC_ASSERT(sizeof(SkPoint3) == 3 * sizeof(GrGLfloat)); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 45 | pdman.set3fv(uni, 1, &point.fX); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 46 | } |
| 47 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 48 | void setUniformNormal3(const GrGLProgramDataManager& pdman, UniformHandle uni, |
| 49 | const SkPoint3& point) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 50 | setUniformPoint3(pdman, uni, SkPoint3(point.fX, point.fY, point.fZ)); |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 51 | } |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 52 | #endif |
senorblanco@chromium.org | f4770d7 | 2012-07-13 18:25:06 +0000 | [diff] [blame] | 53 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 54 | // Shift matrix components to the left, as we advance pixels to the right. |
| 55 | inline void shiftMatrixLeft(int m[9]) { |
| 56 | m[0] = m[1]; |
| 57 | m[3] = m[4]; |
| 58 | m[6] = m[7]; |
| 59 | m[1] = m[2]; |
| 60 | m[4] = m[5]; |
| 61 | m[7] = m[8]; |
| 62 | } |
| 63 | |
| 64 | class DiffuseLightingType { |
| 65 | public: |
| 66 | DiffuseLightingType(SkScalar kd) |
| 67 | : fKD(kd) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 68 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 69 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 70 | SkScalar colorScale = SkScalarMul(fKD, normal.dot(surfaceTolight)); |
| 71 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 72 | SkPoint3 color(lightColor * colorScale); |
| 73 | return SkPackARGB32(255, |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 74 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 75 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 76 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 77 | } |
| 78 | private: |
| 79 | SkScalar fKD; |
| 80 | }; |
| 81 | |
| 82 | class SpecularLightingType { |
| 83 | public: |
| 84 | SpecularLightingType(SkScalar ks, SkScalar shininess) |
| 85 | : fKS(ks), fShininess(shininess) {} |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 86 | SkPMColor light(const SkPoint3& normal, const SkPoint3& surfaceTolight, |
| 87 | const SkPoint3& lightColor) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 88 | SkPoint3 halfDir(surfaceTolight); |
| 89 | halfDir.fZ += SK_Scalar1; // eye position is always (0, 0, 1) |
| 90 | halfDir.normalize(); |
| 91 | SkScalar colorScale = SkScalarMul(fKS, |
| 92 | SkScalarPow(normal.dot(halfDir), fShininess)); |
| 93 | colorScale = SkScalarClampMax(colorScale, SK_Scalar1); |
| 94 | SkPoint3 color(lightColor * colorScale); |
senorblanco@chromium.org | b9c9597 | 2014-03-19 19:44:41 +0000 | [diff] [blame] | 95 | return SkPackARGB32(SkClampMax(SkScalarRoundToInt(color.maxComponent()), 255), |
| 96 | SkClampMax(SkScalarRoundToInt(color.fX), 255), |
| 97 | SkClampMax(SkScalarRoundToInt(color.fY), 255), |
| 98 | SkClampMax(SkScalarRoundToInt(color.fZ), 255)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 99 | } |
| 100 | private: |
| 101 | SkScalar fKS; |
| 102 | SkScalar fShininess; |
| 103 | }; |
| 104 | |
| 105 | inline SkScalar sobel(int a, int b, int c, int d, int e, int f, SkScalar scale) { |
| 106 | return SkScalarMul(SkIntToScalar(-a + b - 2 * c + 2 * d -e + f), scale); |
| 107 | } |
| 108 | |
| 109 | inline SkPoint3 pointToNormal(SkScalar x, SkScalar y, SkScalar surfaceScale) { |
| 110 | SkPoint3 vector(SkScalarMul(-x, surfaceScale), |
| 111 | SkScalarMul(-y, surfaceScale), |
| 112 | SK_Scalar1); |
| 113 | vector.normalize(); |
| 114 | return vector; |
| 115 | } |
| 116 | |
| 117 | inline SkPoint3 topLeftNormal(int m[9], SkScalar surfaceScale) { |
| 118 | return pointToNormal(sobel(0, 0, m[4], m[5], m[7], m[8], gTwoThirds), |
| 119 | sobel(0, 0, m[4], m[7], m[5], m[8], gTwoThirds), |
| 120 | surfaceScale); |
| 121 | } |
| 122 | |
| 123 | inline SkPoint3 topNormal(int m[9], SkScalar surfaceScale) { |
| 124 | return pointToNormal(sobel( 0, 0, m[3], m[5], m[6], m[8], gOneThird), |
| 125 | sobel(m[3], m[6], m[4], m[7], m[5], m[8], gOneHalf), |
| 126 | surfaceScale); |
| 127 | } |
| 128 | |
| 129 | inline SkPoint3 topRightNormal(int m[9], SkScalar surfaceScale) { |
| 130 | return pointToNormal(sobel( 0, 0, m[3], m[4], m[6], m[7], gTwoThirds), |
| 131 | sobel(m[3], m[6], m[4], m[7], 0, 0, gTwoThirds), |
| 132 | surfaceScale); |
| 133 | } |
| 134 | |
| 135 | inline SkPoint3 leftNormal(int m[9], SkScalar surfaceScale) { |
| 136 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], m[7], m[8], gOneHalf), |
| 137 | sobel( 0, 0, m[1], m[7], m[2], m[8], gOneThird), |
| 138 | surfaceScale); |
| 139 | } |
| 140 | |
| 141 | |
| 142 | inline SkPoint3 interiorNormal(int m[9], SkScalar surfaceScale) { |
| 143 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], m[6], m[8], gOneQuarter), |
| 144 | sobel(m[0], m[6], m[1], m[7], m[2], m[8], gOneQuarter), |
| 145 | surfaceScale); |
| 146 | } |
| 147 | |
| 148 | inline SkPoint3 rightNormal(int m[9], SkScalar surfaceScale) { |
| 149 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], m[6], m[7], gOneHalf), |
| 150 | sobel(m[0], m[6], m[1], m[7], 0, 0, gOneThird), |
| 151 | surfaceScale); |
| 152 | } |
| 153 | |
| 154 | inline SkPoint3 bottomLeftNormal(int m[9], SkScalar surfaceScale) { |
| 155 | return pointToNormal(sobel(m[1], m[2], m[4], m[5], 0, 0, gTwoThirds), |
| 156 | sobel( 0, 0, m[1], m[4], m[2], m[5], gTwoThirds), |
| 157 | surfaceScale); |
| 158 | } |
| 159 | |
| 160 | inline SkPoint3 bottomNormal(int m[9], SkScalar surfaceScale) { |
| 161 | return pointToNormal(sobel(m[0], m[2], m[3], m[5], 0, 0, gOneThird), |
| 162 | sobel(m[0], m[3], m[1], m[4], m[2], m[5], gOneHalf), |
| 163 | surfaceScale); |
| 164 | } |
| 165 | |
| 166 | inline SkPoint3 bottomRightNormal(int m[9], SkScalar surfaceScale) { |
| 167 | return pointToNormal(sobel(m[0], m[1], m[3], m[4], 0, 0, gTwoThirds), |
| 168 | sobel(m[0], m[3], m[1], m[4], 0, 0, gTwoThirds), |
| 169 | surfaceScale); |
| 170 | } |
| 171 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 172 | template <class LightingType, class LightType> void lightBitmap( |
| 173 | const LightingType& lightingType, const SkLight* light, const SkBitmap& src, SkBitmap* dst, |
| 174 | SkScalar surfaceScale, const SkIRect& bounds) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 175 | SkASSERT(dst->width() == bounds.width() && dst->height() == bounds.height()); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 176 | const LightType* l = static_cast<const LightType*>(light); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 177 | int left = bounds.left(), right = bounds.right(); |
| 178 | int bottom = bounds.bottom(); |
| 179 | int y = bounds.top(); |
| 180 | SkPMColor* dptr = dst->getAddr32(0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 181 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 182 | int x = left; |
| 183 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 184 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 185 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 186 | m[4] = SkGetPackedA32(*row1++); |
| 187 | m[5] = SkGetPackedA32(*row1++); |
| 188 | m[7] = SkGetPackedA32(*row2++); |
| 189 | m[8] = SkGetPackedA32(*row2++); |
| 190 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 191 | *dptr++ = lightingType.light(topLeftNormal(m, surfaceScale), surfaceToLight, |
| 192 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 193 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 194 | { |
| 195 | shiftMatrixLeft(m); |
| 196 | m[5] = SkGetPackedA32(*row1++); |
| 197 | m[8] = SkGetPackedA32(*row2++); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 198 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 199 | *dptr++ = lightingType.light(topNormal(m, surfaceScale), surfaceToLight, |
| 200 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 201 | } |
| 202 | shiftMatrixLeft(m); |
| 203 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 204 | *dptr++ = lightingType.light(topRightNormal(m, surfaceScale), surfaceToLight, |
| 205 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 206 | } |
| 207 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 208 | for (++y; y < bottom - 1; ++y) { |
| 209 | int x = left; |
| 210 | const SkPMColor* row0 = src.getAddr32(x, y - 1); |
| 211 | const SkPMColor* row1 = src.getAddr32(x, y); |
| 212 | const SkPMColor* row2 = src.getAddr32(x, y + 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 213 | int m[9]; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 214 | m[1] = SkGetPackedA32(*row0++); |
| 215 | m[2] = SkGetPackedA32(*row0++); |
| 216 | m[4] = SkGetPackedA32(*row1++); |
| 217 | m[5] = SkGetPackedA32(*row1++); |
| 218 | m[7] = SkGetPackedA32(*row2++); |
| 219 | m[8] = SkGetPackedA32(*row2++); |
| 220 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 221 | *dptr++ = lightingType.light(leftNormal(m, surfaceScale), surfaceToLight, |
| 222 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 223 | for (++x; x < right - 1; ++x) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 224 | shiftMatrixLeft(m); |
| 225 | m[2] = SkGetPackedA32(*row0++); |
| 226 | m[5] = SkGetPackedA32(*row1++); |
| 227 | m[8] = SkGetPackedA32(*row2++); |
| 228 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 229 | *dptr++ = lightingType.light(interiorNormal(m, surfaceScale), surfaceToLight, |
| 230 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 231 | } |
| 232 | shiftMatrixLeft(m); |
| 233 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 234 | *dptr++ = lightingType.light(rightNormal(m, surfaceScale), surfaceToLight, |
| 235 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 236 | } |
| 237 | |
| 238 | { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 239 | int x = left; |
| 240 | const SkPMColor* row0 = src.getAddr32(x, bottom - 2); |
| 241 | const SkPMColor* row1 = src.getAddr32(x, bottom - 1); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 242 | int m[9]; |
| 243 | m[1] = SkGetPackedA32(*row0++); |
| 244 | m[2] = SkGetPackedA32(*row0++); |
| 245 | m[4] = SkGetPackedA32(*row1++); |
| 246 | m[5] = SkGetPackedA32(*row1++); |
| 247 | SkPoint3 surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 248 | *dptr++ = lightingType.light(bottomLeftNormal(m, surfaceScale), surfaceToLight, |
| 249 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 250 | for (++x; x < right - 1; ++x) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 251 | { |
| 252 | shiftMatrixLeft(m); |
| 253 | m[2] = SkGetPackedA32(*row0++); |
| 254 | m[5] = SkGetPackedA32(*row1++); |
| 255 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 256 | *dptr++ = lightingType.light(bottomNormal(m, surfaceScale), surfaceToLight, |
| 257 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 258 | } |
| 259 | shiftMatrixLeft(m); |
| 260 | surfaceToLight = l->surfaceToLight(x, y, m[4], surfaceScale); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 261 | *dptr++ = lightingType.light(bottomRightNormal(m, surfaceScale), surfaceToLight, |
| 262 | l->lightColor(surfaceToLight)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 263 | } |
| 264 | } |
| 265 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 266 | SkPoint3 readPoint3(SkReadBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 267 | SkPoint3 point; |
| 268 | point.fX = buffer.readScalar(); |
| 269 | point.fY = buffer.readScalar(); |
| 270 | point.fZ = buffer.readScalar(); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 271 | buffer.validate(SkScalarIsFinite(point.fX) && |
| 272 | SkScalarIsFinite(point.fY) && |
| 273 | SkScalarIsFinite(point.fZ)); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 274 | return point; |
| 275 | }; |
| 276 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 277 | void writePoint3(const SkPoint3& point, SkWriteBuffer& buffer) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 278 | buffer.writeScalar(point.fX); |
| 279 | buffer.writeScalar(point.fY); |
| 280 | buffer.writeScalar(point.fZ); |
| 281 | }; |
| 282 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 283 | enum BoundaryMode { |
| 284 | kTopLeft_BoundaryMode, |
| 285 | kTop_BoundaryMode, |
| 286 | kTopRight_BoundaryMode, |
| 287 | kLeft_BoundaryMode, |
| 288 | kInterior_BoundaryMode, |
| 289 | kRight_BoundaryMode, |
| 290 | kBottomLeft_BoundaryMode, |
| 291 | kBottom_BoundaryMode, |
| 292 | kBottomRight_BoundaryMode, |
| 293 | |
| 294 | kBoundaryModeCount, |
| 295 | }; |
| 296 | |
| 297 | class SkLightingImageFilterInternal : public SkLightingImageFilter { |
| 298 | protected: |
| 299 | SkLightingImageFilterInternal(SkLight* light, |
| 300 | SkScalar surfaceScale, |
| 301 | SkImageFilter* input, |
| 302 | const CropRect* cropRect) |
| 303 | : INHERITED(light, surfaceScale, input, cropRect) {} |
| 304 | |
| 305 | #if SK_SUPPORT_GPU |
| 306 | bool canFilterImageGPU() const override { return true; } |
| 307 | bool filterImageGPU(Proxy*, const SkBitmap& src, const Context&, |
| 308 | SkBitmap* result, SkIPoint* offset) const override; |
| 309 | virtual GrFragmentProcessor* getFragmentProcessor(GrTexture*, |
| 310 | const SkMatrix&, |
| 311 | const SkIRect& bounds, |
| 312 | BoundaryMode boundaryMode) const = 0; |
| 313 | #endif |
| 314 | private: |
| 315 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 316 | void drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 317 | GrTexture* src, |
| 318 | GrTexture* dst, |
| 319 | const SkMatrix& matrix, |
| 320 | const GrClip& clip, |
| 321 | const SkRect& dstRect, |
| 322 | BoundaryMode boundaryMode, |
| 323 | const SkIRect& bounds) const; |
| 324 | #endif |
| 325 | typedef SkLightingImageFilter INHERITED; |
| 326 | }; |
| 327 | |
| 328 | #if SK_SUPPORT_GPU |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 329 | void SkLightingImageFilterInternal::drawRect(GrDrawContext* drawContext, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 330 | GrTexture* src, |
| 331 | GrTexture* dst, |
| 332 | const SkMatrix& matrix, |
| 333 | const GrClip& clip, |
| 334 | const SkRect& dstRect, |
| 335 | BoundaryMode boundaryMode, |
| 336 | const SkIRect& bounds) const { |
| 337 | SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); |
| 338 | GrFragmentProcessor* fp = this->getFragmentProcessor(src, matrix, bounds, boundaryMode); |
| 339 | GrPaint paint; |
| 340 | paint.addColorProcessor(fp)->unref(); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 341 | drawContext->drawNonAARectToRect(dst->asRenderTarget(), clip, paint, SkMatrix::I(), |
| 342 | dstRect, srcRect); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | bool SkLightingImageFilterInternal::filterImageGPU(Proxy* proxy, |
| 346 | const SkBitmap& src, |
| 347 | const Context& ctx, |
| 348 | SkBitmap* result, |
| 349 | SkIPoint* offset) const { |
| 350 | SkBitmap input = src; |
| 351 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
| 352 | if (this->getInput(0) && |
| 353 | !this->getInput(0)->getInputResultGPU(proxy, src, ctx, &input, &srcOffset)) { |
| 354 | return false; |
| 355 | } |
| 356 | SkIRect bounds; |
| 357 | if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) { |
| 358 | return false; |
| 359 | } |
| 360 | SkRect dstRect = SkRect::MakeWH(SkIntToScalar(bounds.width()), |
| 361 | SkIntToScalar(bounds.height())); |
| 362 | GrTexture* srcTexture = input.getTexture(); |
| 363 | GrContext* context = srcTexture->getContext(); |
| 364 | |
| 365 | GrSurfaceDesc desc; |
| 366 | desc.fFlags = kRenderTarget_GrSurfaceFlag, |
| 367 | desc.fWidth = bounds.width(); |
| 368 | desc.fHeight = bounds.height(); |
| 369 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 370 | |
bsalomon | d309e7a | 2015-04-30 14:18:54 -0700 | [diff] [blame] | 371 | SkAutoTUnref<GrTexture> dst(context->textureProvider()->refScratchTexture(desc, |
| 372 | GrTextureProvider::kApprox_ScratchTexMatch)); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 373 | if (!dst) { |
| 374 | return false; |
| 375 | } |
| 376 | |
| 377 | // setup new clip |
| 378 | GrClip clip(dstRect); |
| 379 | |
| 380 | offset->fX = bounds.left(); |
| 381 | offset->fY = bounds.top(); |
| 382 | SkMatrix matrix(ctx.ctm()); |
| 383 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 384 | bounds.offset(-srcOffset); |
| 385 | SkRect topLeft = SkRect::MakeXYWH(0, 0, 1, 1); |
| 386 | SkRect top = SkRect::MakeXYWH(1, 0, dstRect.width() - 2, 1); |
| 387 | SkRect topRight = SkRect::MakeXYWH(dstRect.width() - 1, 0, 1, 1); |
| 388 | SkRect left = SkRect::MakeXYWH(0, 1, 1, dstRect.height() - 2); |
| 389 | SkRect interior = dstRect.makeInset(1, 1); |
| 390 | SkRect right = SkRect::MakeXYWH(dstRect.width() - 1, 1, 1, dstRect.height() - 2); |
| 391 | SkRect bottomLeft = SkRect::MakeXYWH(0, dstRect.height() - 1, 1, 1); |
| 392 | SkRect bottom = SkRect::MakeXYWH(1, dstRect.height() - 1, dstRect.width() - 2, 1); |
| 393 | SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 394 | |
| 395 | GrDrawContext* drawContext = context->drawContext(); |
| 396 | if (!drawContext) { |
| 397 | return false; |
| 398 | } |
| 399 | |
| 400 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, topLeft, kTopLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 401 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 402 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, top, kTop_BoundaryMode, bounds); |
| 403 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, topRight, kTopRight_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 404 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 405 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, left, kLeft_BoundaryMode, bounds); |
| 406 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, interior, kInterior_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 407 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 408 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, right, kRight_BoundaryMode, bounds); |
| 409 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, bottomLeft, kBottomLeft_BoundaryMode, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 410 | bounds); |
robertphillips | ea46150 | 2015-05-26 11:38:03 -0700 | [diff] [blame] | 411 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, bottom, kBottom_BoundaryMode, bounds); |
| 412 | this->drawRect(drawContext, srcTexture, dst, matrix, clip, bottomRight, |
| 413 | kBottomRight_BoundaryMode, bounds); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 414 | WrapTexture(dst, bounds.width(), bounds.height(), result); |
| 415 | return true; |
| 416 | } |
| 417 | #endif |
| 418 | |
| 419 | class SkDiffuseLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 420 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 421 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, SkScalar kd, SkImageFilter*, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 422 | const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 423 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 424 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 425 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiffuseLightingImageFilter) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 426 | SkScalar kd() const { return fKD; } |
| 427 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 428 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 429 | SkDiffuseLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 430 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 431 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 432 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 433 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 434 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 435 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, |
| 436 | const SkIRect& bounds, BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 437 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 438 | |
| 439 | private: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 440 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 441 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 442 | SkScalar fKD; |
| 443 | }; |
| 444 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 445 | class SkSpecularLightingImageFilter : public SkLightingImageFilterInternal { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 446 | public: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 447 | static SkImageFilter* Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 448 | SkScalar ks, SkScalar shininess, SkImageFilter*, const CropRect*); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 449 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 450 | SK_TO_STRING_OVERRIDE() |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 451 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSpecularLightingImageFilter) |
| 452 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 453 | SkScalar ks() const { return fKS; } |
| 454 | SkScalar shininess() const { return fShininess; } |
| 455 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 456 | protected: |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 457 | SkSpecularLightingImageFilter(SkLight* light, SkScalar surfaceScale, SkScalar ks, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 458 | SkScalar shininess, SkImageFilter* input, const CropRect*); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 459 | void flatten(SkWriteBuffer& buffer) const override; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 460 | bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| 461 | SkBitmap* result, SkIPoint* offset) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 462 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 463 | GrFragmentProcessor* getFragmentProcessor(GrTexture*, const SkMatrix&, |
| 464 | const SkIRect& bounds, BoundaryMode) const override; |
senorblanco@chromium.org | 1aa6872 | 2013-10-17 19:35:09 +0000 | [diff] [blame] | 465 | #endif |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 466 | |
| 467 | private: |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 468 | SkScalar fKS; |
| 469 | SkScalar fShininess; |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 470 | friend class SkLightingImageFilter; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 471 | typedef SkLightingImageFilterInternal INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 472 | }; |
| 473 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 474 | #if SK_SUPPORT_GPU |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 475 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 476 | class GrLightingEffect : public GrSingleTextureEffect { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 477 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 478 | GrLightingEffect(GrTexture* texture, const SkLight* light, SkScalar surfaceScale, |
| 479 | const SkMatrix& matrix, BoundaryMode boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 480 | virtual ~GrLightingEffect(); |
| 481 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 482 | const SkLight* light() const { return fLight; } |
| 483 | SkScalar surfaceScale() const { return fSurfaceScale; } |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 484 | const SkMatrix& filterMatrix() const { return fFilterMatrix; } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 485 | BoundaryMode boundaryMode() const { return fBoundaryMode; } |
bsalomon@google.com | 371e105 | 2013-01-11 21:08:55 +0000 | [diff] [blame] | 486 | |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 487 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 488 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 489 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 490 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 491 | // lighting shaders are complicated. We just throw up our hands. |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 492 | inout->mulByUnknownFourComponents(); |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 493 | } |
| 494 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 495 | private: |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 496 | typedef GrSingleTextureEffect INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 497 | const SkLight* fLight; |
| 498 | SkScalar fSurfaceScale; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 499 | SkMatrix fFilterMatrix; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 500 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 501 | }; |
| 502 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 503 | class GrDiffuseLightingEffect : public GrLightingEffect { |
| 504 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 505 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 506 | const SkLight* light, |
| 507 | SkScalar surfaceScale, |
| 508 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 509 | SkScalar kd, |
| 510 | BoundaryMode boundaryMode) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 511 | return SkNEW_ARGS(GrDiffuseLightingEffect, (texture, |
| 512 | light, |
| 513 | surfaceScale, |
| 514 | matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 515 | kd, |
| 516 | boundaryMode)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 517 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 518 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 519 | const char* name() const override { return "DiffuseLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 520 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 521 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 522 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 523 | GrGLFragmentProcessor* createGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 524 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 525 | SkScalar kd() const { return fKD; } |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 526 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 527 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 528 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 529 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 530 | GrDiffuseLightingEffect(GrTexture* texture, |
| 531 | const SkLight* light, |
| 532 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 533 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 534 | SkScalar kd, |
| 535 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 536 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 537 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 538 | typedef GrLightingEffect INHERITED; |
| 539 | SkScalar fKD; |
| 540 | }; |
| 541 | |
| 542 | class GrSpecularLightingEffect : public GrLightingEffect { |
| 543 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 544 | static GrFragmentProcessor* Create(GrTexture* texture, |
| 545 | const SkLight* light, |
| 546 | SkScalar surfaceScale, |
| 547 | const SkMatrix& matrix, |
| 548 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 549 | SkScalar shininess, |
| 550 | BoundaryMode boundaryMode) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 551 | return SkNEW_ARGS(GrSpecularLightingEffect, (texture, |
| 552 | light, |
| 553 | surfaceScale, |
| 554 | matrix, |
| 555 | ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 556 | shininess, |
| 557 | boundaryMode)); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 558 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 559 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 560 | const char* name() const override { return "SpecularLighting"; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 561 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 562 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 563 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 564 | GrGLFragmentProcessor* createGLInstance() const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 565 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 566 | SkScalar ks() const { return fKS; } |
| 567 | SkScalar shininess() const { return fShininess; } |
| 568 | |
| 569 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 570 | bool onIsEqual(const GrFragmentProcessor&) const override; |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 571 | |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 572 | GrSpecularLightingEffect(GrTexture* texture, |
| 573 | const SkLight* light, |
| 574 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 575 | const SkMatrix& matrix, |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 576 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 577 | SkScalar shininess, |
| 578 | BoundaryMode boundaryMode); |
bsalomon@google.com | 0ac6af4 | 2013-01-16 15:16:18 +0000 | [diff] [blame] | 579 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 580 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 581 | typedef GrLightingEffect INHERITED; |
| 582 | SkScalar fKS; |
| 583 | SkScalar fShininess; |
| 584 | }; |
| 585 | |
| 586 | /////////////////////////////////////////////////////////////////////////////// |
| 587 | |
| 588 | class GrGLLight { |
| 589 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 590 | virtual ~GrGLLight() {} |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 591 | |
| 592 | /** |
| 593 | * This is called by GrGLLightingEffect::emitCode() before either of the two virtual functions |
| 594 | * below. It adds a vec3f uniform visible in the FS that represents the constant light color. |
| 595 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 596 | void emitLightColorUniform(GrGLFPBuilder*); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 597 | |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 598 | /** |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 599 | * These two functions are called from GrGLLightingEffect's emitCode() function. |
| 600 | * emitSurfaceToLight places an expression in param out that is the vector from the surface to |
| 601 | * the light. The expression will be used in the FS. emitLightColor writes an expression into |
| 602 | * the FS that is the color of the light. Either function may add functions and/or uniforms to |
| 603 | * the FS. The default of emitLightColor appends the name of the constant light color uniform |
| 604 | * and so this function only needs to be overridden if the light color varies spatially. |
| 605 | */ |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 606 | virtual void emitSurfaceToLight(GrGLFPBuilder*, const char* z) = 0; |
| 607 | virtual void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 608 | |
| 609 | // This is called from GrGLLightingEffect's setData(). Subclasses of GrGLLight must call |
| 610 | // INHERITED::setData(). |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 611 | virtual void setData(const GrGLProgramDataManager&, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 612 | const SkLight* light) const; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 613 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 614 | protected: |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 615 | /** |
| 616 | * Gets the constant light color uniform. Subclasses can use this in their emitLightColor |
| 617 | * function. |
| 618 | */ |
| 619 | UniformHandle lightColorUni() const { return fColorUni; } |
| 620 | |
| 621 | private: |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 622 | UniformHandle fColorUni; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 623 | |
| 624 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 625 | }; |
| 626 | |
| 627 | /////////////////////////////////////////////////////////////////////////////// |
| 628 | |
| 629 | class GrGLDistantLight : public GrGLLight { |
| 630 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 631 | virtual ~GrGLDistantLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 632 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 633 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 634 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 635 | private: |
| 636 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 637 | UniformHandle fDirectionUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 638 | }; |
| 639 | |
| 640 | /////////////////////////////////////////////////////////////////////////////// |
| 641 | |
| 642 | class GrGLPointLight : public GrGLLight { |
| 643 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 644 | virtual ~GrGLPointLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 645 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 646 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 647 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 648 | private: |
| 649 | typedef GrGLLight INHERITED; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 650 | UniformHandle fLocationUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 651 | }; |
| 652 | |
| 653 | /////////////////////////////////////////////////////////////////////////////// |
| 654 | |
| 655 | class GrGLSpotLight : public GrGLLight { |
| 656 | public: |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 657 | virtual ~GrGLSpotLight() {} |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 658 | void setData(const GrGLProgramDataManager&, const SkLight* light) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 659 | void emitSurfaceToLight(GrGLFPBuilder*, const char* z) override; |
| 660 | void emitLightColor(GrGLFPBuilder*, const char *surfaceToLight) override; |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 661 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 662 | private: |
| 663 | typedef GrGLLight INHERITED; |
| 664 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 665 | SkString fLightColorFunc; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 666 | UniformHandle fLocationUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 667 | UniformHandle fExponentUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 668 | UniformHandle fCosOuterConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 669 | UniformHandle fCosInnerConeAngleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 670 | UniformHandle fConeScaleUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 671 | UniformHandle fSUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 672 | }; |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 673 | #else |
| 674 | |
| 675 | class GrGLLight; |
| 676 | |
| 677 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 678 | |
| 679 | }; |
| 680 | |
| 681 | /////////////////////////////////////////////////////////////////////////////// |
| 682 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 683 | class SkLight : public SkRefCnt { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 684 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 685 | SK_DECLARE_INST_COUNT(SkLight) |
| 686 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 687 | enum LightType { |
| 688 | kDistant_LightType, |
| 689 | kPoint_LightType, |
| 690 | kSpot_LightType, |
| 691 | }; |
| 692 | virtual LightType type() const = 0; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 693 | const SkPoint3& color() const { return fColor; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 694 | virtual GrGLLight* createGLLight() const = 0; |
| 695 | virtual bool isEqual(const SkLight& other) const { |
| 696 | return fColor == other.fColor; |
| 697 | } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 698 | // Called to know whether the generated GrGLLight will require access to the fragment position. |
| 699 | virtual bool requiresFragmentPosition() const = 0; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 700 | virtual SkLight* transform(const SkMatrix& matrix) const = 0; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 701 | |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 702 | // Defined below SkLight's subclasses. |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 703 | void flattenLight(SkWriteBuffer& buffer) const; |
| 704 | static SkLight* UnflattenLight(SkReadBuffer& buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 705 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 706 | protected: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 707 | SkLight(SkColor color) |
| 708 | : fColor(SkIntToScalar(SkColorGetR(color)), |
| 709 | SkIntToScalar(SkColorGetG(color)), |
| 710 | SkIntToScalar(SkColorGetB(color))) {} |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 711 | SkLight(const SkPoint3& color) |
| 712 | : fColor(color) {} |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 713 | SkLight(SkReadBuffer& buffer) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 714 | fColor = readPoint3(buffer); |
| 715 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 716 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 717 | virtual void onFlattenLight(SkWriteBuffer& buffer) const = 0; |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 718 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 719 | |
| 720 | private: |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 721 | typedef SkRefCnt INHERITED; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 722 | SkPoint3 fColor; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 723 | }; |
| 724 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 725 | /////////////////////////////////////////////////////////////////////////////// |
| 726 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 727 | class SkDistantLight : public SkLight { |
| 728 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 729 | SkDistantLight(const SkPoint3& direction, SkColor color) |
| 730 | : INHERITED(color), fDirection(direction) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 731 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 732 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 733 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 734 | return fDirection; |
| 735 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 736 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 737 | LightType type() const override { return kDistant_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 738 | const SkPoint3& direction() const { return fDirection; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 739 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 740 | #if SK_SUPPORT_GPU |
| 741 | return SkNEW(GrGLDistantLight); |
| 742 | #else |
| 743 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 744 | return NULL; |
| 745 | #endif |
| 746 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 747 | bool requiresFragmentPosition() const override { return false; } |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 748 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 749 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 6730cbb | 2012-07-11 16:35:00 +0000 | [diff] [blame] | 750 | if (other.type() != kDistant_LightType) { |
| 751 | return false; |
| 752 | } |
| 753 | |
| 754 | const SkDistantLight& o = static_cast<const SkDistantLight&>(other); |
| 755 | return INHERITED::isEqual(other) && |
| 756 | fDirection == o.fDirection; |
| 757 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 758 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 759 | SkDistantLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 760 | fDirection = readPoint3(buffer); |
| 761 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 762 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 763 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 764 | SkDistantLight(const SkPoint3& direction, const SkPoint3& color) |
| 765 | : INHERITED(color), fDirection(direction) { |
| 766 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 767 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 768 | return new SkDistantLight(direction(), color()); |
| 769 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 770 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 771 | writePoint3(fDirection, buffer); |
| 772 | } |
| 773 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 774 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 775 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 776 | SkPoint3 fDirection; |
| 777 | }; |
| 778 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 779 | /////////////////////////////////////////////////////////////////////////////// |
| 780 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 781 | class SkPointLight : public SkLight { |
| 782 | public: |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 783 | SkPointLight(const SkPoint3& location, SkColor color) |
| 784 | : INHERITED(color), fLocation(location) {} |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 785 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 786 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 787 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 788 | fLocation.fY - SkIntToScalar(y), |
| 789 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 790 | direction.normalize(); |
| 791 | return direction; |
| 792 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 793 | SkPoint3 lightColor(const SkPoint3&) const { return color(); } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 794 | LightType type() const override { return kPoint_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 795 | const SkPoint3& location() const { return fLocation; } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 796 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 797 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 798 | return SkNEW(GrGLPointLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 799 | #else |
| 800 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 801 | return NULL; |
| 802 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 803 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 804 | bool requiresFragmentPosition() const override { return true; } |
| 805 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 806 | if (other.type() != kPoint_LightType) { |
| 807 | return false; |
| 808 | } |
| 809 | const SkPointLight& o = static_cast<const SkPointLight&>(other); |
| 810 | return INHERITED::isEqual(other) && |
| 811 | fLocation == o.fLocation; |
| 812 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 813 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 814 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 815 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 816 | // Use X scale and Y scale on Z and average the result |
| 817 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 818 | matrix.mapVectors(&locationZ, 1); |
| 819 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 820 | return new SkPointLight(location, color()); |
| 821 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 822 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 823 | SkPointLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 824 | fLocation = readPoint3(buffer); |
| 825 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 826 | |
| 827 | protected: |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 828 | SkPointLight(const SkPoint3& location, const SkPoint3& color) |
| 829 | : INHERITED(color), fLocation(location) {} |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 830 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 831 | writePoint3(fLocation, buffer); |
| 832 | } |
| 833 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 834 | private: |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 835 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 836 | SkPoint3 fLocation; |
| 837 | }; |
| 838 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 839 | /////////////////////////////////////////////////////////////////////////////// |
| 840 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 841 | class SkSpotLight : public SkLight { |
| 842 | public: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 843 | SkSpotLight(const SkPoint3& location, |
| 844 | const SkPoint3& target, |
| 845 | SkScalar specularExponent, |
| 846 | SkScalar cutoffAngle, |
| 847 | SkColor color) |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 848 | : INHERITED(color), |
| 849 | fLocation(location), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 850 | fTarget(target), |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 851 | fSpecularExponent(SkScalarPin(specularExponent, kSpecularExponentMin, kSpecularExponentMax)) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 852 | { |
| 853 | fS = target - location; |
| 854 | fS.normalize(); |
| 855 | fCosOuterConeAngle = SkScalarCos(SkDegreesToRadians(cutoffAngle)); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 856 | const SkScalar antiAliasThreshold = 0.016f; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 857 | fCosInnerConeAngle = fCosOuterConeAngle + antiAliasThreshold; |
| 858 | fConeScale = SkScalarInvert(antiAliasThreshold); |
| 859 | } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 860 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 861 | SkLight* transform(const SkMatrix& matrix) const override { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 862 | SkPoint location2 = SkPoint::Make(fLocation.fX, fLocation.fY); |
| 863 | matrix.mapPoints(&location2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 864 | // Use X scale and Y scale on Z and average the result |
| 865 | SkPoint locationZ = SkPoint::Make(fLocation.fZ, fLocation.fZ); |
| 866 | matrix.mapVectors(&locationZ, 1); |
| 867 | SkPoint3 location(location2.fX, location2.fY, SkScalarAve(locationZ.fX, locationZ.fY)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 868 | SkPoint target2 = SkPoint::Make(fTarget.fX, fTarget.fY); |
| 869 | matrix.mapPoints(&target2, 1); |
commit-bot@chromium.org | 1037d92 | 2014-03-13 19:45:41 +0000 | [diff] [blame] | 870 | SkPoint targetZ = SkPoint::Make(fTarget.fZ, fTarget.fZ); |
| 871 | matrix.mapVectors(&targetZ, 1); |
| 872 | SkPoint3 target(target2.fX, target2.fY, SkScalarAve(targetZ.fX, targetZ.fY)); |
| 873 | SkPoint3 s = target - location; |
| 874 | s.normalize(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 875 | return new SkSpotLight(location, |
| 876 | target, |
| 877 | fSpecularExponent, |
| 878 | fCosOuterConeAngle, |
| 879 | fCosInnerConeAngle, |
| 880 | fConeScale, |
| 881 | s, |
| 882 | color()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 883 | } |
| 884 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 885 | SkPoint3 surfaceToLight(int x, int y, int z, SkScalar surfaceScale) const { |
| 886 | SkPoint3 direction(fLocation.fX - SkIntToScalar(x), |
| 887 | fLocation.fY - SkIntToScalar(y), |
| 888 | fLocation.fZ - SkScalarMul(SkIntToScalar(z), surfaceScale)); |
| 889 | direction.normalize(); |
| 890 | return direction; |
| 891 | }; |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 892 | SkPoint3 lightColor(const SkPoint3& surfaceToLight) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 893 | SkScalar cosAngle = -surfaceToLight.dot(fS); |
| 894 | if (cosAngle < fCosOuterConeAngle) { |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 895 | return SkPoint3(0, 0, 0); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 896 | } |
| 897 | SkScalar scale = SkScalarPow(cosAngle, fSpecularExponent); |
| 898 | if (cosAngle < fCosInnerConeAngle) { |
| 899 | scale = SkScalarMul(scale, cosAngle - fCosOuterConeAngle); |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 900 | return color() * SkScalarMul(scale, fConeScale); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 901 | } |
senorblanco@chromium.org | bdb1ec4 | 2012-07-09 14:29:51 +0000 | [diff] [blame] | 902 | return color() * scale; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 903 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 904 | GrGLLight* createGLLight() const override { |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 905 | #if SK_SUPPORT_GPU |
tomhudson@google.com | 300f562 | 2012-07-20 14:15:22 +0000 | [diff] [blame] | 906 | return SkNEW(GrGLSpotLight); |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 907 | #else |
| 908 | SkDEBUGFAIL("Should not call in GPU-less build"); |
| 909 | return NULL; |
| 910 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 911 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 912 | bool requiresFragmentPosition() const override { return true; } |
| 913 | LightType type() const override { return kSpot_LightType; } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 914 | const SkPoint3& location() const { return fLocation; } |
| 915 | const SkPoint3& target() const { return fTarget; } |
| 916 | SkScalar specularExponent() const { return fSpecularExponent; } |
| 917 | SkScalar cosInnerConeAngle() const { return fCosInnerConeAngle; } |
| 918 | SkScalar cosOuterConeAngle() const { return fCosOuterConeAngle; } |
| 919 | SkScalar coneScale() const { return fConeScale; } |
senorblanco@chromium.org | eb31184 | 2012-07-11 20:49:26 +0000 | [diff] [blame] | 920 | const SkPoint3& s() const { return fS; } |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 921 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 922 | SkSpotLight(SkReadBuffer& buffer) : INHERITED(buffer) { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 923 | fLocation = readPoint3(buffer); |
| 924 | fTarget = readPoint3(buffer); |
| 925 | fSpecularExponent = buffer.readScalar(); |
| 926 | fCosOuterConeAngle = buffer.readScalar(); |
| 927 | fCosInnerConeAngle = buffer.readScalar(); |
| 928 | fConeScale = buffer.readScalar(); |
| 929 | fS = readPoint3(buffer); |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 930 | buffer.validate(SkScalarIsFinite(fSpecularExponent) && |
| 931 | SkScalarIsFinite(fCosOuterConeAngle) && |
| 932 | SkScalarIsFinite(fCosInnerConeAngle) && |
| 933 | SkScalarIsFinite(fConeScale)); |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 934 | } |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 935 | protected: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 936 | SkSpotLight(const SkPoint3& location, |
| 937 | const SkPoint3& target, |
| 938 | SkScalar specularExponent, |
| 939 | SkScalar cosOuterConeAngle, |
| 940 | SkScalar cosInnerConeAngle, |
| 941 | SkScalar coneScale, |
| 942 | const SkPoint3& s, |
| 943 | const SkPoint3& color) |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 944 | : INHERITED(color), |
| 945 | fLocation(location), |
| 946 | fTarget(target), |
| 947 | fSpecularExponent(specularExponent), |
| 948 | fCosOuterConeAngle(cosOuterConeAngle), |
| 949 | fCosInnerConeAngle(cosInnerConeAngle), |
| 950 | fConeScale(coneScale), |
| 951 | fS(s) |
| 952 | { |
| 953 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 954 | void onFlattenLight(SkWriteBuffer& buffer) const override { |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 955 | writePoint3(fLocation, buffer); |
| 956 | writePoint3(fTarget, buffer); |
| 957 | buffer.writeScalar(fSpecularExponent); |
| 958 | buffer.writeScalar(fCosOuterConeAngle); |
| 959 | buffer.writeScalar(fCosInnerConeAngle); |
| 960 | buffer.writeScalar(fConeScale); |
| 961 | writePoint3(fS, buffer); |
| 962 | } |
| 963 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 964 | bool isEqual(const SkLight& other) const override { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 965 | if (other.type() != kSpot_LightType) { |
| 966 | return false; |
| 967 | } |
| 968 | |
| 969 | const SkSpotLight& o = static_cast<const SkSpotLight&>(other); |
| 970 | return INHERITED::isEqual(other) && |
| 971 | fLocation == o.fLocation && |
| 972 | fTarget == o.fTarget && |
| 973 | fSpecularExponent == o.fSpecularExponent && |
| 974 | fCosOuterConeAngle == o.fCosOuterConeAngle; |
| 975 | } |
| 976 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 977 | private: |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 978 | static const SkScalar kSpecularExponentMin; |
| 979 | static const SkScalar kSpecularExponentMax; |
| 980 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 981 | typedef SkLight INHERITED; |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 982 | SkPoint3 fLocation; |
| 983 | SkPoint3 fTarget; |
| 984 | SkScalar fSpecularExponent; |
| 985 | SkScalar fCosOuterConeAngle; |
| 986 | SkScalar fCosInnerConeAngle; |
| 987 | SkScalar fConeScale; |
| 988 | SkPoint3 fS; |
| 989 | }; |
| 990 | |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 991 | // According to the spec, the specular term should be in the range [1, 128] : |
| 992 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingSpecularExponentAttribute |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 993 | const SkScalar SkSpotLight::kSpecularExponentMin = 1.0f; |
| 994 | const SkScalar SkSpotLight::kSpecularExponentMax = 128.0f; |
commit-bot@chromium.org | 4b681bc | 2013-09-13 12:40:02 +0000 | [diff] [blame] | 995 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 996 | /////////////////////////////////////////////////////////////////////////////// |
| 997 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 998 | void SkLight::flattenLight(SkWriteBuffer& buffer) const { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 999 | // Write type first, then baseclass, then subclass. |
| 1000 | buffer.writeInt(this->type()); |
| 1001 | writePoint3(fColor, buffer); |
| 1002 | this->onFlattenLight(buffer); |
| 1003 | } |
| 1004 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1005 | /*static*/ SkLight* SkLight::UnflattenLight(SkReadBuffer& buffer) { |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1006 | // Read type first. |
| 1007 | const SkLight::LightType type = (SkLight::LightType)buffer.readInt(); |
| 1008 | switch (type) { |
| 1009 | // Each of these constructors must first call SkLight's, so we'll read the baseclass |
| 1010 | // then subclass, same order as flattenLight. |
| 1011 | case SkLight::kDistant_LightType: return SkNEW_ARGS(SkDistantLight, (buffer)); |
| 1012 | case SkLight::kPoint_LightType: return SkNEW_ARGS(SkPointLight, (buffer)); |
| 1013 | case SkLight::kSpot_LightType: return SkNEW_ARGS(SkSpotLight, (buffer)); |
| 1014 | default: |
| 1015 | SkDEBUGFAIL("Unknown LightType."); |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1016 | buffer.validate(false); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1017 | return NULL; |
| 1018 | } |
| 1019 | } |
| 1020 | /////////////////////////////////////////////////////////////////////////////// |
| 1021 | |
senorblanco | 9ea3d57 | 2014-07-08 09:16:22 -0700 | [diff] [blame] | 1022 | SkLightingImageFilter::SkLightingImageFilter(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1023 | SkImageFilter* input, const CropRect* cropRect) |
| 1024 | : INHERITED(1, &input, cropRect) |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1025 | , fLight(SkRef(light)) |
| 1026 | , fSurfaceScale(surfaceScale / 255) |
| 1027 | {} |
| 1028 | |
| 1029 | SkImageFilter* SkLightingImageFilter::CreateDistantLitDiffuse(const SkPoint3& direction, |
| 1030 | SkColor lightColor, |
| 1031 | SkScalar surfaceScale, |
| 1032 | SkScalar kd, |
| 1033 | SkImageFilter* input, |
| 1034 | const CropRect* cropRect) { |
| 1035 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 1036 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1037 | } |
| 1038 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1039 | SkImageFilter* SkLightingImageFilter::CreatePointLitDiffuse(const SkPoint3& location, |
| 1040 | SkColor lightColor, |
| 1041 | SkScalar surfaceScale, |
| 1042 | SkScalar kd, |
| 1043 | SkImageFilter* input, |
| 1044 | const CropRect* cropRect) { |
| 1045 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 1046 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1047 | } |
| 1048 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1049 | SkImageFilter* SkLightingImageFilter::CreateSpotLitDiffuse(const SkPoint3& location, |
| 1050 | const SkPoint3& target, |
| 1051 | SkScalar specularExponent, |
| 1052 | SkScalar cutoffAngle, |
| 1053 | SkColor lightColor, |
| 1054 | SkScalar surfaceScale, |
| 1055 | SkScalar kd, |
| 1056 | SkImageFilter* input, |
| 1057 | const CropRect* cropRect) { |
| 1058 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 1059 | cutoffAngle, lightColor))); |
| 1060 | return SkDiffuseLightingImageFilter::Create(light, surfaceScale, kd, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1061 | } |
| 1062 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1063 | SkImageFilter* SkLightingImageFilter::CreateDistantLitSpecular(const SkPoint3& direction, |
| 1064 | SkColor lightColor, |
| 1065 | SkScalar surfaceScale, |
| 1066 | SkScalar ks, |
| 1067 | SkScalar shine, |
| 1068 | SkImageFilter* input, |
| 1069 | const CropRect* cropRect) { |
| 1070 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkDistantLight, (direction, lightColor))); |
| 1071 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1072 | } |
| 1073 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1074 | SkImageFilter* SkLightingImageFilter::CreatePointLitSpecular(const SkPoint3& location, |
| 1075 | SkColor lightColor, |
| 1076 | SkScalar surfaceScale, |
| 1077 | SkScalar ks, |
| 1078 | SkScalar shine, |
| 1079 | SkImageFilter* input, |
| 1080 | const CropRect* cropRect) { |
| 1081 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkPointLight, (location, lightColor))); |
| 1082 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1083 | } |
| 1084 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1085 | SkImageFilter* SkLightingImageFilter::CreateSpotLitSpecular(const SkPoint3& location, |
| 1086 | const SkPoint3& target, |
| 1087 | SkScalar specularExponent, |
| 1088 | SkScalar cutoffAngle, |
| 1089 | SkColor lightColor, |
| 1090 | SkScalar surfaceScale, |
| 1091 | SkScalar ks, |
| 1092 | SkScalar shine, |
| 1093 | SkImageFilter* input, |
| 1094 | const CropRect* cropRect) { |
| 1095 | SkAutoTUnref<SkLight> light(SkNEW_ARGS(SkSpotLight, (location, target, specularExponent, |
| 1096 | cutoffAngle, lightColor))); |
| 1097 | return SkSpecularLightingImageFilter::Create(light, surfaceScale, ks, shine, input, cropRect); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1098 | } |
| 1099 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1100 | SkLightingImageFilter::~SkLightingImageFilter() {} |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1101 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1102 | void SkLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1103 | this->INHERITED::flatten(buffer); |
commit-bot@chromium.org | 790c3f4 | 2013-10-14 16:28:56 +0000 | [diff] [blame] | 1104 | fLight->flattenLight(buffer); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1105 | buffer.writeScalar(fSurfaceScale * 255); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1106 | } |
| 1107 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1108 | /////////////////////////////////////////////////////////////////////////////// |
| 1109 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1110 | SkImageFilter* SkDiffuseLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1111 | SkScalar kd, SkImageFilter* input, const CropRect* cropRect) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1112 | if (NULL == light) { |
| 1113 | return NULL; |
| 1114 | } |
| 1115 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(kd)) { |
| 1116 | return NULL; |
| 1117 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1118 | // According to the spec, kd can be any non-negative number : |
| 1119 | // http://www.w3.org/TR/SVG/filters.html#feDiffuseLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1120 | if (kd < 0) { |
| 1121 | return NULL; |
| 1122 | } |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1123 | return SkNEW_ARGS(SkDiffuseLightingImageFilter, (light, surfaceScale, kd, input, cropRect)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1124 | } |
| 1125 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1126 | SkDiffuseLightingImageFilter::SkDiffuseLightingImageFilter(SkLight* light, |
| 1127 | SkScalar surfaceScale, |
| 1128 | SkScalar kd, |
| 1129 | SkImageFilter* input, |
| 1130 | const CropRect* cropRect) |
| 1131 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1132 | fKD(kd) |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1133 | { |
| 1134 | } |
| 1135 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1136 | SkFlattenable* SkDiffuseLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1137 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1138 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1139 | SkScalar surfaceScale = buffer.readScalar(); |
| 1140 | SkScalar kd = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1141 | return Create(light, surfaceScale, kd, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1142 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1143 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1144 | void SkDiffuseLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1145 | this->INHERITED::flatten(buffer); |
| 1146 | buffer.writeScalar(fKD); |
| 1147 | } |
| 1148 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1149 | bool SkDiffuseLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1150 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1151 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1152 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1153 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1154 | SkImageFilter* input = getInput(0); |
| 1155 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1156 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1157 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1158 | return false; |
| 1159 | } |
| 1160 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1161 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1162 | return false; |
| 1163 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1164 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1165 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1166 | return false; |
| 1167 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1168 | |
| 1169 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1170 | return false; |
| 1171 | } |
| 1172 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1173 | SkAutoLockPixels alp(src); |
| 1174 | if (!src.getPixels()) { |
| 1175 | return false; |
| 1176 | } |
| 1177 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1178 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1179 | return false; |
| 1180 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1181 | |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1182 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1183 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1184 | DiffuseLightingType lightingType(fKD); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1185 | offset->fX = bounds.left(); |
| 1186 | offset->fY = bounds.top(); |
| 1187 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1188 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1189 | case SkLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1190 | lightBitmap<DiffuseLightingType, SkDistantLight>(lightingType, |
| 1191 | transformedLight, |
| 1192 | src, |
| 1193 | dst, |
| 1194 | surfaceScale(), |
| 1195 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1196 | break; |
| 1197 | case SkLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1198 | lightBitmap<DiffuseLightingType, SkPointLight>(lightingType, |
| 1199 | transformedLight, |
| 1200 | src, |
| 1201 | dst, |
| 1202 | surfaceScale(), |
| 1203 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1204 | break; |
| 1205 | case SkLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1206 | lightBitmap<DiffuseLightingType, SkSpotLight>(lightingType, |
| 1207 | transformedLight, |
| 1208 | src, |
| 1209 | dst, |
| 1210 | surfaceScale(), |
| 1211 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1212 | break; |
| 1213 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1214 | |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1215 | return true; |
| 1216 | } |
| 1217 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1218 | #ifndef SK_IGNORE_TO_STRING |
| 1219 | void SkDiffuseLightingImageFilter::toString(SkString* str) const { |
| 1220 | str->appendf("SkDiffuseLightingImageFilter: ("); |
| 1221 | str->appendf("kD: %f\n", fKD); |
| 1222 | str->append(")"); |
| 1223 | } |
| 1224 | #endif |
| 1225 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1226 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1227 | GrFragmentProcessor* SkDiffuseLightingImageFilter::getFragmentProcessor( |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1228 | GrTexture* texture, |
| 1229 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1230 | const SkIRect&, |
| 1231 | BoundaryMode boundaryMode |
| 1232 | ) const { |
| 1233 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
| 1234 | return GrDiffuseLightingEffect::Create(texture, light(), scale, matrix, kd(), boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1235 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1236 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1237 | |
| 1238 | /////////////////////////////////////////////////////////////////////////////// |
| 1239 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1240 | SkImageFilter* SkSpecularLightingImageFilter::Create(SkLight* light, SkScalar surfaceScale, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1241 | SkScalar ks, SkScalar shininess, SkImageFilter* input, const CropRect* cropRect) { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1242 | if (NULL == light) { |
| 1243 | return NULL; |
| 1244 | } |
| 1245 | if (!SkScalarIsFinite(surfaceScale) || !SkScalarIsFinite(ks) || !SkScalarIsFinite(shininess)) { |
| 1246 | return NULL; |
| 1247 | } |
commit-bot@chromium.org | ce33d60 | 2013-11-25 21:46:31 +0000 | [diff] [blame] | 1248 | // According to the spec, ks can be any non-negative number : |
| 1249 | // http://www.w3.org/TR/SVG/filters.html#feSpecularLightingElement |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1250 | if (ks < 0) { |
| 1251 | return NULL; |
| 1252 | } |
| 1253 | return SkNEW_ARGS(SkSpecularLightingImageFilter, |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1254 | (light, surfaceScale, ks, shininess, input, cropRect)); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1255 | } |
| 1256 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1257 | SkSpecularLightingImageFilter::SkSpecularLightingImageFilter(SkLight* light, |
| 1258 | SkScalar surfaceScale, |
| 1259 | SkScalar ks, |
| 1260 | SkScalar shininess, |
| 1261 | SkImageFilter* input, |
| 1262 | const CropRect* cropRect) |
| 1263 | : INHERITED(light, surfaceScale, input, cropRect), |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1264 | fKS(ks), |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1265 | fShininess(shininess) |
| 1266 | { |
| 1267 | } |
| 1268 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1269 | SkFlattenable* SkSpecularLightingImageFilter::CreateProc(SkReadBuffer& buffer) { |
| 1270 | SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| 1271 | SkAutoTUnref<SkLight> light(SkLight::UnflattenLight(buffer)); |
| 1272 | SkScalar surfaceScale = buffer.readScalar(); |
| 1273 | SkScalar ks = buffer.readScalar(); |
| 1274 | SkScalar shine = buffer.readScalar(); |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 1275 | return Create(light, surfaceScale, ks, shine, common.getInput(0), &common.cropRect()); |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 1276 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1277 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 1278 | void SkSpecularLightingImageFilter::flatten(SkWriteBuffer& buffer) const { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1279 | this->INHERITED::flatten(buffer); |
| 1280 | buffer.writeScalar(fKS); |
| 1281 | buffer.writeScalar(fShininess); |
| 1282 | } |
| 1283 | |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1284 | bool SkSpecularLightingImageFilter::onFilterImage(Proxy* proxy, |
| 1285 | const SkBitmap& source, |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1286 | const Context& ctx, |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1287 | SkBitmap* dst, |
commit-bot@chromium.org | ae761f7 | 2014-02-05 22:32:02 +0000 | [diff] [blame] | 1288 | SkIPoint* offset) const { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1289 | SkImageFilter* input = getInput(0); |
| 1290 | SkBitmap src = source; |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1291 | SkIPoint srcOffset = SkIPoint::Make(0, 0); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1292 | if (input && !input->filterImage(proxy, source, ctx, &src, &srcOffset)) { |
commit-bot@chromium.org | a8aef8b | 2013-10-23 15:33:44 +0000 | [diff] [blame] | 1293 | return false; |
| 1294 | } |
| 1295 | |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 1296 | if (src.colorType() != kN32_SkColorType) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1297 | return false; |
| 1298 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1299 | |
| 1300 | SkIRect bounds; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1301 | if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &bounds, &src)) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1302 | return false; |
| 1303 | } |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1304 | |
| 1305 | if (bounds.width() < 2 || bounds.height() < 2) { |
| 1306 | return false; |
| 1307 | } |
| 1308 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1309 | SkAutoLockPixels alp(src); |
| 1310 | if (!src.getPixels()) { |
| 1311 | return false; |
| 1312 | } |
| 1313 | |
reed | 8482504 | 2014-09-02 12:50:45 -0700 | [diff] [blame] | 1314 | if (!dst->tryAllocPixels(src.info().makeWH(bounds.width(), bounds.height()))) { |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 1315 | return false; |
| 1316 | } |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1317 | |
| 1318 | SpecularLightingType lightingType(fKS, fShininess); |
senorblanco@chromium.org | 6776b82 | 2014-01-03 21:48:22 +0000 | [diff] [blame] | 1319 | offset->fX = bounds.left(); |
| 1320 | offset->fY = bounds.top(); |
| 1321 | bounds.offset(-srcOffset); |
senorblanco@chromium.org | 4cb543d | 2014-03-14 15:44:01 +0000 | [diff] [blame] | 1322 | SkAutoTUnref<SkLight> transformedLight(light()->transform(ctx.ctm())); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1323 | switch (transformedLight->type()) { |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1324 | case SkLight::kDistant_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1325 | lightBitmap<SpecularLightingType, SkDistantLight>(lightingType, |
| 1326 | transformedLight, |
| 1327 | src, |
| 1328 | dst, |
| 1329 | surfaceScale(), |
| 1330 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1331 | break; |
| 1332 | case SkLight::kPoint_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1333 | lightBitmap<SpecularLightingType, SkPointLight>(lightingType, |
| 1334 | transformedLight, |
| 1335 | src, |
| 1336 | dst, |
| 1337 | surfaceScale(), |
| 1338 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1339 | break; |
| 1340 | case SkLight::kSpot_LightType: |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1341 | lightBitmap<SpecularLightingType, SkSpotLight>(lightingType, |
| 1342 | transformedLight, |
| 1343 | src, |
| 1344 | dst, |
| 1345 | surfaceScale(), |
| 1346 | bounds); |
senorblanco@chromium.org | f49b429 | 2012-06-22 21:01:23 +0000 | [diff] [blame] | 1347 | break; |
| 1348 | } |
| 1349 | return true; |
| 1350 | } |
| 1351 | |
robertphillips | f3f5bad | 2014-12-19 13:49:15 -0800 | [diff] [blame] | 1352 | #ifndef SK_IGNORE_TO_STRING |
| 1353 | void SkSpecularLightingImageFilter::toString(SkString* str) const { |
| 1354 | str->appendf("SkSpecularLightingImageFilter: ("); |
| 1355 | str->appendf("kS: %f shininess: %f", fKS, fShininess); |
| 1356 | str->append(")"); |
| 1357 | } |
| 1358 | #endif |
| 1359 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1360 | #if SK_SUPPORT_GPU |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1361 | GrFragmentProcessor* SkSpecularLightingImageFilter::getFragmentProcessor( |
| 1362 | GrTexture* texture, |
| 1363 | const SkMatrix& matrix, |
| 1364 | const SkIRect&, |
| 1365 | BoundaryMode boundaryMode) const { |
| 1366 | SkScalar scale = SkScalarMul(surfaceScale(), SkIntToScalar(255)); |
| 1367 | return GrSpecularLightingEffect::Create(texture, light(), scale, matrix, ks(), shininess(), |
| 1368 | boundaryMode); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1369 | } |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 1370 | #endif |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1371 | |
| 1372 | /////////////////////////////////////////////////////////////////////////////// |
| 1373 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 1374 | #if SK_SUPPORT_GPU |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1375 | |
| 1376 | namespace { |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1377 | SkPoint3 random_point3(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1378 | return SkPoint3(SkScalarToFloat(random->nextSScalar1()), |
| 1379 | SkScalarToFloat(random->nextSScalar1()), |
| 1380 | SkScalarToFloat(random->nextSScalar1())); |
| 1381 | } |
| 1382 | |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 1383 | SkLight* create_random_light(SkRandom* random) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1384 | int type = random->nextULessThan(3); |
| 1385 | switch (type) { |
| 1386 | case 0: { |
| 1387 | return SkNEW_ARGS(SkDistantLight, (random_point3(random), random->nextU())); |
| 1388 | } |
| 1389 | case 1: { |
| 1390 | return SkNEW_ARGS(SkPointLight, (random_point3(random), random->nextU())); |
| 1391 | } |
| 1392 | case 2: { |
| 1393 | return SkNEW_ARGS(SkSpotLight, (random_point3(random), |
| 1394 | random_point3(random), |
| 1395 | random->nextUScalar1(), |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1396 | random->nextUScalar1(), |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1397 | random->nextU())); |
| 1398 | } |
| 1399 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 1400 | SkFAIL("Unexpected value."); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1401 | return NULL; |
| 1402 | } |
| 1403 | } |
| 1404 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1405 | SkString emitNormalFunc(BoundaryMode mode, |
| 1406 | const char* pointToNormalName, |
| 1407 | const char* sobelFuncName) { |
| 1408 | SkString result; |
| 1409 | switch (mode) { |
| 1410 | case kTopLeft_BoundaryMode: |
| 1411 | result.printf("\treturn %s(%s(0.0, 0.0, m[4], m[5], m[7], m[8], %g),\n" |
| 1412 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1413 | "\t surfaceScale);\n", |
| 1414 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1415 | sobelFuncName, gTwoThirds); |
| 1416 | break; |
| 1417 | case kTop_BoundaryMode: |
| 1418 | result.printf("\treturn %s(%s(0.0, 0.0, m[3], m[5], m[6], m[8], %g),\n" |
| 1419 | "\t %s(0.0, 0.0, m[4], m[7], m[5], m[8], %g),\n" |
| 1420 | "\t surfaceScale);\n", |
| 1421 | pointToNormalName, sobelFuncName, gOneThird, |
| 1422 | sobelFuncName, gOneHalf); |
| 1423 | break; |
| 1424 | case kTopRight_BoundaryMode: |
| 1425 | result.printf("\treturn %s(%s( 0.0, 0.0, m[3], m[4], m[6], m[7], %g),\n" |
| 1426 | "\t %s(m[3], m[6], m[4], m[7], 0.0, 0.0, %g),\n" |
| 1427 | "\t surfaceScale);\n", |
| 1428 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1429 | sobelFuncName, gTwoThirds); |
| 1430 | break; |
| 1431 | case kLeft_BoundaryMode: |
| 1432 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], m[7], m[8], %g),\n" |
| 1433 | "\t %s( 0.0, 0.0, m[1], m[7], m[2], m[8], %g),\n" |
| 1434 | "\t surfaceScale);\n", |
| 1435 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1436 | sobelFuncName, gOneThird); |
| 1437 | break; |
| 1438 | case kInterior_BoundaryMode: |
| 1439 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], m[6], m[8], %g),\n" |
| 1440 | "\t %s(m[0], m[6], m[1], m[7], m[2], m[8], %g),\n" |
| 1441 | "\t surfaceScale);\n", |
| 1442 | pointToNormalName, sobelFuncName, gOneQuarter, |
| 1443 | sobelFuncName, gOneQuarter); |
| 1444 | break; |
| 1445 | case kRight_BoundaryMode: |
| 1446 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], m[6], m[7], %g),\n" |
| 1447 | "\t %s(m[0], m[6], m[1], m[7], 0.0, 0.0, %g),\n" |
| 1448 | "\t surfaceScale);\n", |
| 1449 | pointToNormalName, sobelFuncName, gOneHalf, |
| 1450 | sobelFuncName, gOneThird); |
| 1451 | break; |
| 1452 | case kBottomLeft_BoundaryMode: |
| 1453 | result.printf("\treturn %s(%s(m[1], m[2], m[4], m[5], 0.0, 0.0, %g),\n" |
| 1454 | "\t %s( 0.0, 0.0, m[1], m[4], m[2], m[5], %g),\n" |
| 1455 | "\t surfaceScale);\n", |
| 1456 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1457 | sobelFuncName, gTwoThirds); |
| 1458 | break; |
| 1459 | case kBottom_BoundaryMode: |
| 1460 | result.printf("\treturn %s(%s(m[0], m[2], m[3], m[5], 0.0, 0.0, %g),\n" |
| 1461 | "\t %s(m[0], m[3], m[1], m[4], m[2], m[5], %g),\n" |
| 1462 | "\t surfaceScale);\n", |
| 1463 | pointToNormalName, sobelFuncName, gOneThird, |
| 1464 | sobelFuncName, gOneHalf); |
| 1465 | break; |
| 1466 | case kBottomRight_BoundaryMode: |
| 1467 | result.printf("\treturn %s(%s(m[0], m[1], m[3], m[4], 0.0, 0.0, %g),\n" |
| 1468 | "\t %s(m[0], m[3], m[1], m[4], 0.0, 0.0, %g),\n" |
| 1469 | "\t surfaceScale);\n", |
| 1470 | pointToNormalName, sobelFuncName, gTwoThirds, |
| 1471 | sobelFuncName, gTwoThirds); |
| 1472 | break; |
| 1473 | default: |
| 1474 | SkASSERT(false); |
| 1475 | break; |
| 1476 | } |
| 1477 | return result; |
| 1478 | } |
| 1479 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1480 | } |
| 1481 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1482 | class GrGLLightingEffect : public GrGLFragmentProcessor { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1483 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1484 | GrGLLightingEffect(const GrProcessor&); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1485 | virtual ~GrGLLightingEffect(); |
| 1486 | |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1487 | void emitCode(GrGLFPBuilder*, |
| 1488 | const GrFragmentProcessor&, |
| 1489 | const char* outputColor, |
| 1490 | const char* inputColor, |
| 1491 | const TransformedCoordsArray&, |
| 1492 | const TextureSamplerArray&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1493 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1494 | static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1495 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1496 | /** |
| 1497 | * Subclasses of GrGLLightingEffect must call INHERITED::setData(); |
| 1498 | */ |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1499 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1500 | |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1501 | protected: |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1502 | virtual void emitLightFunc(GrGLFPBuilder*, SkString* funcName) = 0; |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1503 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1504 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1505 | typedef GrGLFragmentProcessor INHERITED; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1506 | |
bsalomon@google.com | 17fc651 | 2012-11-02 21:45:01 +0000 | [diff] [blame] | 1507 | UniformHandle fImageIncrementUni; |
| 1508 | UniformHandle fSurfaceScaleUni; |
| 1509 | GrGLLight* fLight; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1510 | BoundaryMode fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1511 | }; |
| 1512 | |
| 1513 | /////////////////////////////////////////////////////////////////////////////// |
| 1514 | |
| 1515 | class GrGLDiffuseLightingEffect : public GrGLLightingEffect { |
| 1516 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1517 | GrGLDiffuseLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1518 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
| 1519 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1520 | |
| 1521 | private: |
| 1522 | typedef GrGLLightingEffect INHERITED; |
| 1523 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1524 | UniformHandle fKDUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1525 | }; |
| 1526 | |
| 1527 | /////////////////////////////////////////////////////////////////////////////// |
| 1528 | |
| 1529 | class GrGLSpecularLightingEffect : public GrGLLightingEffect { |
| 1530 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1531 | GrGLSpecularLightingEffect(const GrProcessor&); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1532 | void emitLightFunc(GrGLFPBuilder*, SkString* funcName) override; |
| 1533 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1534 | |
| 1535 | private: |
| 1536 | typedef GrGLLightingEffect INHERITED; |
| 1537 | |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1538 | UniformHandle fKSUni; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1539 | UniformHandle fShininessUni; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1540 | }; |
| 1541 | |
| 1542 | /////////////////////////////////////////////////////////////////////////////// |
| 1543 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1544 | GrLightingEffect::GrLightingEffect(GrTexture* texture, |
| 1545 | const SkLight* light, |
| 1546 | SkScalar surfaceScale, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1547 | const SkMatrix& matrix, |
| 1548 | BoundaryMode boundaryMode) |
bsalomon | 6267f81 | 2014-08-29 15:05:53 -0700 | [diff] [blame] | 1549 | : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture)) |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 1550 | , fLight(light) |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1551 | , fSurfaceScale(surfaceScale) |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1552 | , fFilterMatrix(matrix) |
| 1553 | , fBoundaryMode(boundaryMode) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1554 | fLight->ref(); |
commit-bot@chromium.org | 8d47ddc | 2013-05-09 14:55:46 +0000 | [diff] [blame] | 1555 | if (light->requiresFragmentPosition()) { |
| 1556 | this->setWillReadFragmentPosition(); |
| 1557 | } |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1558 | } |
| 1559 | |
| 1560 | GrLightingEffect::~GrLightingEffect() { |
| 1561 | fLight->unref(); |
| 1562 | } |
| 1563 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1564 | bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1565 | const GrLightingEffect& s = sBase.cast<GrLightingEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 1566 | return fLight->isEqual(*s.fLight) && |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1567 | fSurfaceScale == s.fSurfaceScale && |
| 1568 | fBoundaryMode == s.fBoundaryMode; |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1569 | } |
| 1570 | |
| 1571 | /////////////////////////////////////////////////////////////////////////////// |
| 1572 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1573 | GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture, |
| 1574 | const SkLight* light, |
| 1575 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1576 | const SkMatrix& matrix, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1577 | SkScalar kd, |
| 1578 | BoundaryMode boundaryMode) |
| 1579 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), fKD(kd) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1580 | this->initClassID<GrDiffuseLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1581 | } |
| 1582 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1583 | bool GrDiffuseLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1584 | const GrDiffuseLightingEffect& s = sBase.cast<GrDiffuseLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1585 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1586 | this->kd() == s.kd(); |
| 1587 | } |
| 1588 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1589 | void GrDiffuseLightingEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1590 | GrProcessorKeyBuilder* b) const { |
| 1591 | GrGLDiffuseLightingEffect::GenKey(*this, caps, b); |
| 1592 | } |
| 1593 | |
| 1594 | GrGLFragmentProcessor* GrDiffuseLightingEffect::createGLInstance() const { |
| 1595 | return SkNEW_ARGS(GrGLDiffuseLightingEffect, (*this)); |
| 1596 | } |
| 1597 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1598 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1599 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1600 | GrFragmentProcessor* GrDiffuseLightingEffect::TestCreate(SkRandom* random, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1601 | GrContext* context, |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 1602 | const GrCaps&, |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1603 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1604 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1605 | SkScalar kd = random->nextUScalar1(); |
| 1606 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1607 | SkMatrix matrix; |
| 1608 | for (int i = 0; i < 9; i++) { |
| 1609 | matrix[i] = random->nextUScalar1(); |
| 1610 | } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1611 | BoundaryMode mode = static_cast<BoundaryMode>(random->nextU() % kBoundaryModeCount); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1612 | return GrDiffuseLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1613 | light, surfaceScale, matrix, kd, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1614 | } |
| 1615 | |
| 1616 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1617 | /////////////////////////////////////////////////////////////////////////////// |
| 1618 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1619 | GrGLLightingEffect::GrGLLightingEffect(const GrProcessor& fp) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1620 | const GrLightingEffect& m = fp.cast<GrLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1621 | fLight = m.light()->createGLLight(); |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1622 | fBoundaryMode = m.boundaryMode(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1623 | } |
| 1624 | |
| 1625 | GrGLLightingEffect::~GrGLLightingEffect() { |
| 1626 | delete fLight; |
| 1627 | } |
| 1628 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1629 | void GrGLLightingEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1630 | const GrFragmentProcessor&, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1631 | const char* outputColor, |
| 1632 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 1633 | const TransformedCoordsArray& coords, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1634 | const TextureSamplerArray& samplers) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1635 | fImageIncrementUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1636 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1637 | "ImageIncrement"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1638 | fSurfaceScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1639 | kFloat_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 1640 | "SurfaceScale"); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1641 | fLight->emitLightColorUniform(builder); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1642 | SkString lightFunc; |
| 1643 | this->emitLightFunc(builder, &lightFunc); |
| 1644 | static const GrGLShaderVar gSobelArgs[] = { |
| 1645 | GrGLShaderVar("a", kFloat_GrSLType), |
| 1646 | GrGLShaderVar("b", kFloat_GrSLType), |
| 1647 | GrGLShaderVar("c", kFloat_GrSLType), |
| 1648 | GrGLShaderVar("d", kFloat_GrSLType), |
| 1649 | GrGLShaderVar("e", kFloat_GrSLType), |
| 1650 | GrGLShaderVar("f", kFloat_GrSLType), |
| 1651 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1652 | }; |
| 1653 | SkString sobelFuncName; |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1654 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1655 | SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0); |
| 1656 | |
| 1657 | fsBuilder->emitFunction(kFloat_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1658 | "sobel", |
| 1659 | SK_ARRAY_COUNT(gSobelArgs), |
| 1660 | gSobelArgs, |
| 1661 | "\treturn (-a + b - 2.0 * c + 2.0 * d -e + f) * scale;\n", |
| 1662 | &sobelFuncName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1663 | static const GrGLShaderVar gPointToNormalArgs[] = { |
| 1664 | GrGLShaderVar("x", kFloat_GrSLType), |
| 1665 | GrGLShaderVar("y", kFloat_GrSLType), |
| 1666 | GrGLShaderVar("scale", kFloat_GrSLType), |
| 1667 | }; |
| 1668 | SkString pointToNormalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1669 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1670 | "pointToNormal", |
| 1671 | SK_ARRAY_COUNT(gPointToNormalArgs), |
| 1672 | gPointToNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1673 | "\treturn normalize(vec3(-x * scale, -y * scale, 1));\n", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1674 | &pointToNormalName); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1675 | |
| 1676 | static const GrGLShaderVar gInteriorNormalArgs[] = { |
| 1677 | GrGLShaderVar("m", kFloat_GrSLType, 9), |
| 1678 | GrGLShaderVar("surfaceScale", kFloat_GrSLType), |
| 1679 | }; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1680 | SkString normalBody = emitNormalFunc(fBoundaryMode, |
| 1681 | pointToNormalName.c_str(), |
| 1682 | sobelFuncName.c_str()); |
| 1683 | SkString normalName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1684 | fsBuilder->emitFunction(kVec3f_GrSLType, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1685 | "normal", |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1686 | SK_ARRAY_COUNT(gInteriorNormalArgs), |
| 1687 | gInteriorNormalArgs, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1688 | normalBody.c_str(), |
| 1689 | &normalName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1690 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1691 | fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str()); |
| 1692 | fsBuilder->codeAppend("\t\tfloat m[9];\n"); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1693 | |
| 1694 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
| 1695 | const char* surfScale = builder->getUniformCStr(fSurfaceScaleUni); |
| 1696 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1697 | int index = 0; |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1698 | for (int dy = 1; dy >= -1; dy--) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1699 | for (int dx = -1; dx <= 1; dx++) { |
| 1700 | SkString texCoords; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1701 | texCoords.appendf("coord + vec2(%d, %d) * %s", dx, dy, imgInc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1702 | fsBuilder->codeAppendf("\t\tm[%d] = ", index++); |
| 1703 | fsBuilder->appendTextureLookup(samplers[0], texCoords.c_str()); |
| 1704 | fsBuilder->codeAppend(".a;\n"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1705 | } |
| 1706 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1707 | fsBuilder->codeAppend("\t\tvec3 surfaceToLight = "); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1708 | SkString arg; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 1709 | arg.appendf("%s * m[4]", surfScale); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1710 | fLight->emitSurfaceToLight(builder, arg.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1711 | fsBuilder->codeAppend(";\n"); |
| 1712 | fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ", |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1713 | outputColor, lightFunc.c_str(), normalName.c_str(), surfScale); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1714 | fLight->emitLightColor(builder, "surfaceToLight"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1715 | fsBuilder->codeAppend(");\n"); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 1716 | SkString modulate; |
egdaniel | 089f8de | 2014-10-09 10:34:58 -0700 | [diff] [blame] | 1717 | GrGLSLMulVarBy4f(&modulate, outputColor, inputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1718 | fsBuilder->codeAppend(modulate.c_str()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1719 | } |
| 1720 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1721 | void GrGLLightingEffect::GenKey(const GrProcessor& proc, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1722 | const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) { |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1723 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
| 1724 | b->add32(lighting.boundaryMode() << 2 | lighting.light()->type()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1725 | } |
| 1726 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1727 | void GrGLLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1728 | const GrProcessor& proc) { |
| 1729 | const GrLightingEffect& lighting = proc.cast<GrLightingEffect>(); |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 1730 | GrTexture* texture = lighting.texture(0); |
senorblanco@chromium.org | ef5dbe1 | 2013-01-28 16:42:38 +0000 | [diff] [blame] | 1731 | float ySign = texture->origin() == kTopLeft_GrSurfaceOrigin ? -1.0f : 1.0f; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1732 | pdman.set2f(fImageIncrementUni, 1.0f / texture->width(), ySign / texture->height()); |
| 1733 | pdman.set1f(fSurfaceScaleUni, lighting.surfaceScale()); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1734 | SkAutoTUnref<SkLight> transformedLight(lighting.light()->transform(lighting.filterMatrix())); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1735 | fLight->setData(pdman, transformedLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1736 | } |
| 1737 | |
| 1738 | /////////////////////////////////////////////////////////////////////////////// |
| 1739 | |
| 1740 | /////////////////////////////////////////////////////////////////////////////// |
| 1741 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1742 | GrGLDiffuseLightingEffect::GrGLDiffuseLightingEffect(const GrProcessor& proc) |
| 1743 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1744 | } |
| 1745 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1746 | void GrGLDiffuseLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1747 | const char* kd; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1748 | fKDUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1749 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1750 | "KD", &kd); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1751 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1752 | static const GrGLShaderVar gLightArgs[] = { |
| 1753 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1754 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1755 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1756 | }; |
| 1757 | SkString lightBody; |
| 1758 | lightBody.appendf("\tfloat colorScale = %s * dot(normal, surfaceToLight);\n", kd); |
| 1759 | 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] | 1760 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1761 | "light", |
| 1762 | SK_ARRAY_COUNT(gLightArgs), |
| 1763 | gLightArgs, |
| 1764 | lightBody.c_str(), |
| 1765 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1766 | } |
| 1767 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1768 | void GrGLDiffuseLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1769 | const GrProcessor& proc) { |
| 1770 | INHERITED::setData(pdman, proc); |
| 1771 | const GrDiffuseLightingEffect& diffuse = proc.cast<GrDiffuseLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1772 | pdman.set1f(fKDUni, diffuse.kd()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1773 | } |
| 1774 | |
| 1775 | /////////////////////////////////////////////////////////////////////////////// |
| 1776 | |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1777 | GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture, |
| 1778 | const SkLight* light, |
| 1779 | SkScalar surfaceScale, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1780 | const SkMatrix& matrix, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 1781 | SkScalar ks, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1782 | SkScalar shininess, |
| 1783 | BoundaryMode boundaryMode) |
| 1784 | : INHERITED(texture, light, surfaceScale, matrix, boundaryMode), |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1785 | fKS(ks), |
| 1786 | fShininess(shininess) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1787 | this->initClassID<GrSpecularLightingEffect>(); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1788 | } |
| 1789 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 1790 | bool GrSpecularLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1791 | const GrSpecularLightingEffect& s = sBase.cast<GrSpecularLightingEffect>(); |
bsalomon@google.com | 68b58c9 | 2013-01-17 16:50:08 +0000 | [diff] [blame] | 1792 | return INHERITED::onIsEqual(sBase) && |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1793 | this->ks() == s.ks() && |
| 1794 | this->shininess() == s.shininess(); |
| 1795 | } |
| 1796 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1797 | void GrSpecularLightingEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1798 | GrProcessorKeyBuilder* b) const { |
| 1799 | GrGLSpecularLightingEffect::GenKey(*this, caps, b); |
| 1800 | } |
| 1801 | |
| 1802 | GrGLFragmentProcessor* GrSpecularLightingEffect::createGLInstance() const { |
| 1803 | return SkNEW_ARGS(GrGLSpecularLightingEffect, (*this)); |
| 1804 | } |
| 1805 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1806 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1807 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1808 | GrFragmentProcessor* GrSpecularLightingEffect::TestCreate(SkRandom* random, |
| 1809 | GrContext* context, |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 1810 | const GrCaps&, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1811 | GrTexture* textures[]) { |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1812 | SkScalar surfaceScale = random->nextSScalar1(); |
| 1813 | SkScalar ks = random->nextUScalar1(); |
| 1814 | SkScalar shininess = random->nextUScalar1(); |
| 1815 | SkAutoTUnref<SkLight> light(create_random_light(random)); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1816 | SkMatrix matrix; |
| 1817 | for (int i = 0; i < 9; i++) { |
| 1818 | matrix[i] = random->nextUScalar1(); |
| 1819 | } |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1820 | BoundaryMode mode = static_cast<BoundaryMode>(random->nextU() % kBoundaryModeCount); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1821 | return GrSpecularLightingEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureIdx], |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1822 | light, surfaceScale, matrix, ks, shininess, mode); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1823 | } |
| 1824 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1825 | /////////////////////////////////////////////////////////////////////////////// |
| 1826 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1827 | GrGLSpecularLightingEffect::GrGLSpecularLightingEffect(const GrProcessor& proc) |
| 1828 | : INHERITED(proc) { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1829 | } |
| 1830 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1831 | void GrGLSpecularLightingEffect::emitLightFunc(GrGLFPBuilder* builder, SkString* funcName) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1832 | const char* ks; |
| 1833 | const char* shininess; |
| 1834 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1835 | fKSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1836 | kFloat_GrSLType, kDefault_GrSLPrecision, "KS", &ks); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1837 | fShininessUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
senorblanco | d0d37ca | 2015-04-02 04:54:56 -0700 | [diff] [blame] | 1838 | kFloat_GrSLType, |
| 1839 | kDefault_GrSLPrecision, |
| 1840 | "Shininess", |
| 1841 | &shininess); |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1842 | |
| 1843 | static const GrGLShaderVar gLightArgs[] = { |
| 1844 | GrGLShaderVar("normal", kVec3f_GrSLType), |
| 1845 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType), |
| 1846 | GrGLShaderVar("lightColor", kVec3f_GrSLType) |
| 1847 | }; |
| 1848 | SkString lightBody; |
| 1849 | lightBody.appendf("\tvec3 halfDir = vec3(normalize(surfaceToLight + vec3(0, 0, 1)));\n"); |
| 1850 | 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] | 1851 | lightBody.appendf("\tvec3 color = lightColor * clamp(colorScale, 0.0, 1.0);\n"); |
| 1852 | 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] | 1853 | builder->getFragmentShaderBuilder()->emitFunction(kVec4f_GrSLType, |
| 1854 | "light", |
| 1855 | SK_ARRAY_COUNT(gLightArgs), |
| 1856 | gLightArgs, |
| 1857 | lightBody.c_str(), |
| 1858 | funcName); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1859 | } |
| 1860 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1861 | void GrGLSpecularLightingEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1862 | const GrProcessor& effect) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1863 | INHERITED::setData(pdman, effect); |
| 1864 | const GrSpecularLightingEffect& spec = effect.cast<GrSpecularLightingEffect>(); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1865 | pdman.set1f(fKSUni, spec.ks()); |
| 1866 | pdman.set1f(fShininessUni, spec.shininess()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1867 | } |
| 1868 | |
| 1869 | /////////////////////////////////////////////////////////////////////////////// |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1870 | void GrGLLight::emitLightColorUniform(GrGLFPBuilder* builder) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1871 | fColorUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1872 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1873 | "LightColor"); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1874 | } |
| 1875 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1876 | void GrGLLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1877 | const char *surfaceToLight) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1878 | builder->getFragmentShaderBuilder()->codeAppend(builder->getUniformCStr(this->lightColorUni())); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1879 | } |
| 1880 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1881 | void GrGLLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1882 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1883 | setUniformPoint3(pdman, fColorUni, light->color() * SkScalarInvert(SkIntToScalar(255))); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1884 | } |
| 1885 | |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1886 | /////////////////////////////////////////////////////////////////////////////// |
| 1887 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1888 | void GrGLDistantLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1889 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1890 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1891 | SkASSERT(light->type() == SkLight::kDistant_LightType); |
| 1892 | const SkDistantLight* distantLight = static_cast<const SkDistantLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1893 | setUniformNormal3(pdman, fDirectionUni, distantLight->direction()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1894 | } |
| 1895 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1896 | void GrGLDistantLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1897 | const char* dir; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1898 | fDirectionUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1899 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1900 | "LightDirection", &dir); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1901 | builder->getFragmentShaderBuilder()->codeAppend(dir); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1902 | } |
| 1903 | |
| 1904 | /////////////////////////////////////////////////////////////////////////////// |
| 1905 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1906 | void GrGLPointLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1907 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1908 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1909 | SkASSERT(light->type() == SkLight::kPoint_LightType); |
| 1910 | const SkPointLight* pointLight = static_cast<const SkPointLight*>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1911 | setUniformPoint3(pdman, fLocationUni, pointLight->location()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1912 | } |
| 1913 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1914 | void GrGLPointLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1915 | const char* loc; |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1916 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 1917 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1918 | "LightLocation", &loc); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1919 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1920 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1921 | loc, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1922 | } |
| 1923 | |
| 1924 | /////////////////////////////////////////////////////////////////////////////// |
| 1925 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1926 | void GrGLSpotLight::setData(const GrGLProgramDataManager& pdman, |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 1927 | const SkLight* light) const { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1928 | INHERITED::setData(pdman, light); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1929 | SkASSERT(light->type() == SkLight::kSpot_LightType); |
| 1930 | const SkSpotLight* spotLight = static_cast<const SkSpotLight *>(light); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1931 | setUniformPoint3(pdman, fLocationUni, spotLight->location()); |
| 1932 | pdman.set1f(fExponentUni, spotLight->specularExponent()); |
| 1933 | pdman.set1f(fCosInnerConeAngleUni, spotLight->cosInnerConeAngle()); |
| 1934 | pdman.set1f(fCosOuterConeAngleUni, spotLight->cosOuterConeAngle()); |
| 1935 | pdman.set1f(fConeScaleUni, spotLight->coneScale()); |
| 1936 | setUniformNormal3(pdman, fSUni, spotLight->s()); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1937 | } |
| 1938 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1939 | void GrGLSpotLight::emitSurfaceToLight(GrGLFPBuilder* builder, const char* z) { |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1940 | const char* location; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1941 | fLocationUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1942 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1943 | "LightLocation", &location); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1944 | |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1945 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1946 | fsBuilder->codeAppendf("normalize(%s - vec3(%s.xy, %s))", |
| 1947 | location, fsBuilder->fragmentPosition(), z); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1948 | } |
| 1949 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1950 | void GrGLSpotLight::emitLightColor(GrGLFPBuilder* builder, |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1951 | const char *surfaceToLight) { |
| 1952 | |
| 1953 | const char* color = builder->getUniformCStr(this->lightColorUni()); // created by parent class. |
| 1954 | |
| 1955 | const char* exponent; |
| 1956 | const char* cosInner; |
| 1957 | const char* cosOuter; |
| 1958 | const char* coneScale; |
| 1959 | const char* s; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1960 | fExponentUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1961 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1962 | "Exponent", &exponent); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1963 | fCosInnerConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1964 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1965 | "CosInnerConeAngle", &cosInner); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1966 | fCosOuterConeAngleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1967 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1968 | "CosOuterConeAngle", &cosOuter); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1969 | fConeScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1970 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 1971 | "ConeScale", &coneScale); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1972 | fSUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1973 | kVec3f_GrSLType, kDefault_GrSLPrecision, "S", &s); |
bsalomon@google.com | ae5ef11 | 2012-10-29 14:53:53 +0000 | [diff] [blame] | 1974 | |
bsalomon@google.com | a1bf0ff | 2012-08-07 17:36:29 +0000 | [diff] [blame] | 1975 | static const GrGLShaderVar gLightColorArgs[] = { |
| 1976 | GrGLShaderVar("surfaceToLight", kVec3f_GrSLType) |
| 1977 | }; |
| 1978 | SkString lightColorBody; |
| 1979 | lightColorBody.appendf("\tfloat cosAngle = -dot(surfaceToLight, %s);\n", s); |
| 1980 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosOuter); |
| 1981 | lightColorBody.appendf("\t\treturn vec3(0);\n"); |
| 1982 | lightColorBody.appendf("\t}\n"); |
| 1983 | lightColorBody.appendf("\tfloat scale = pow(cosAngle, %s);\n", exponent); |
| 1984 | lightColorBody.appendf("\tif (cosAngle < %s) {\n", cosInner); |
| 1985 | lightColorBody.appendf("\t\treturn %s * scale * (cosAngle - %s) * %s;\n", |
| 1986 | color, cosOuter, coneScale); |
| 1987 | lightColorBody.appendf("\t}\n"); |
| 1988 | lightColorBody.appendf("\treturn %s;\n", color); |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1989 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1990 | fsBuilder->emitFunction(kVec3f_GrSLType, |
commit-bot@chromium.org | 74a3a21 | 2013-08-30 19:43:59 +0000 | [diff] [blame] | 1991 | "lightColor", |
| 1992 | SK_ARRAY_COUNT(gLightColorArgs), |
| 1993 | gLightColorArgs, |
| 1994 | lightColorBody.c_str(), |
| 1995 | &fLightColorFunc); |
skia.committer@gmail.com | e862d16 | 2012-10-31 02:01:18 +0000 | [diff] [blame] | 1996 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1997 | fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight); |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 1998 | } |
| 1999 | |
bsalomon@google.com | cf8fb1f | 2012-08-02 14:03:32 +0000 | [diff] [blame] | 2000 | #endif |
| 2001 | |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2002 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter) |
| 2003 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter) |
| 2004 | SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter) |
djsollen@google.com | 0833777 | 2012-06-26 14:33:13 +0000 | [diff] [blame] | 2005 | SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |