cc/shader.h

   1 // Copyright 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_SHADER_H_
   6 #define CC_SHADER_H_
   7
   8 #include "third_party/skia/include/core/SkColorPriv.h"
   9 #include <string>
  10
  11 namespace WebKit {
  12 class WebGraphicsContext3D;
  13 }
  14
  15 namespace cc {
  16
  17 class VertexShaderPosTex {
  18 public:
  19     VertexShaderPosTex();
  20
  21     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
  22     std::string getShaderString() const;
  23
  24     int matrixLocation() const { return m_matrixLocation; }
  25
  26 private:
  27     int m_matrixLocation;
  28 };
  29
  30 class VertexShaderPosTexYUVStretch {
  31 public:
  32     VertexShaderPosTexYUVStretch();
  33
  34     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
  35     std::string getShaderString() const;
  36
  37     int matrixLocation() const { return m_matrixLocation; }
  38     int texScaleLocation() const { return m_texScaleLocation; }
  39
  40 private:
  41     int m_matrixLocation;
  42     int m_texScaleLocation;
  43 };
  44
  45 class VertexShaderPos {
  46 public:
  47     VertexShaderPos();
  48
  49     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
  50     std::string getShaderString() const;
  51
  52     int matrixLocation() const { return m_matrixLocation; }
  53
  54 private:
  55     int m_matrixLocation;
  56 };
  57
  58 class VertexShaderPosTexIdentity {
  59 public:
  60     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex) { }
  61     std::string getShaderString() const;
  62 };
  63
  64 class VertexShaderPosTexTransform {
  65 public:
  66     VertexShaderPosTexTransform();
  67
  68     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
  69     std::string getShaderString() const;
  70
  71     int matrixLocation() const { return m_matrixLocation; }
  72     int texTransformLocation() const { return m_texTransformLocation; }
  73     int vertexOpacityLocation() const { return m_vertexOpacityLocation; }
  74
  75 private:
  76     int m_matrixLocation;
  77     int m_texTransformLocation;
  78     int m_vertexOpacityLocation;
  79 };
  80
  81 class VertexShaderQuad {
  82 public:
  83     VertexShaderQuad();
  84
  85     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
  86     std::string getShaderString() const;
  87
  88     int matrixLocation() const { return m_matrixLocation; }
  89     int pointLocation() const { return m_pointLocation; }
  90     int texScaleLocation() const { return m_texScaleLocation; }
  91
  92 private:
  93     int m_matrixLocation;
  94     int m_pointLocation;
  95     int m_texScaleLocation;
  96 };
  97
  98 class VertexShaderTile {
  99 public:
 100     VertexShaderTile();
 101
 102     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 103     std::string getShaderString() const;
 104
 105     int matrixLocation() const { return m_matrixLocation; }
 106     int pointLocation() const { return m_pointLocation; }
 107     int vertexTexTransformLocation() const { return m_vertexTexTransformLocation; }
 108
 109 private:
 110     int m_matrixLocation;
 111     int m_pointLocation;
 112     int m_vertexTexTransformLocation;
 113 };
 114
 115 class VertexShaderVideoTransform {
 116 public:
 117     VertexShaderVideoTransform();
 118
 119     bool init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 120     std::string getShaderString() const;
 121
 122     int matrixLocation() const { return m_matrixLocation; }
 123     int texMatrixLocation() const { return m_texMatrixLocation; }
 124
 125 private:
 126     int m_matrixLocation;
 127     int m_texMatrixLocation;
 128 };
 129
 130 class FragmentTexAlphaBinding {
 131 public:
 132     FragmentTexAlphaBinding();
 133
 134     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 135     int alphaLocation() const { return m_alphaLocation; }
 136     int edgeLocation() const { return -1; }
 137     int fragmentTexTransformLocation() const { return -1; }
 138     int samplerLocation() const { return m_samplerLocation; }
 139
 140 private:
 141     int m_samplerLocation;
 142     int m_alphaLocation;
 143 };
 144
 145 class FragmentTexOpaqueBinding {
 146 public:
 147     FragmentTexOpaqueBinding();
 148
 149     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 150     int alphaLocation() const { return -1; }
 151     int edgeLocation() const { return -1; }
 152     int fragmentTexTransformLocation() const { return -1; }
 153     int samplerLocation() const { return m_samplerLocation; }
 154
 155 private:
 156     int m_samplerLocation;
 157 };
 158
 159 class FragmentShaderRGBATexFlipVaryingAlpha : public FragmentTexOpaqueBinding {
 160 public:
 161     std::string getShaderString() const;
 162 };
 163
 164 class FragmentShaderRGBATexVaryingAlpha : public FragmentTexOpaqueBinding {
 165 public:
 166     std::string getShaderString() const;
 167 };
 168
 169 class FragmentShaderRGBATexAlpha : public FragmentTexAlphaBinding {
 170 public:
 171     std::string getShaderString() const;
 172 };
 173
 174 class FragmentShaderRGBATexRectFlipVaryingAlpha : public FragmentTexAlphaBinding {
 175 public:
 176     std::string getShaderString() const;
 177 };
 178
 179 class FragmentShaderRGBATexRectVaryingAlpha : public FragmentTexAlphaBinding {
 180 public:
 181     std::string getShaderString() const;
 182 };
 183
 184 class FragmentShaderRGBATexOpaque : public FragmentTexOpaqueBinding {
 185 public:
 186     std::string getShaderString() const;
 187 };
 188
 189 class FragmentShaderRGBATex : public FragmentTexOpaqueBinding {
 190 public:
 191     std::string getShaderString() const;
 192 };
 193
 194 // Swizzles the red and blue component of sampled texel with alpha.
 195 class FragmentShaderRGBATexSwizzleAlpha : public FragmentTexAlphaBinding {
 196 public:
 197     std::string getShaderString() const;
 198 };
 199
 200 // Swizzles the red and blue component of sampled texel without alpha.
 201 class FragmentShaderRGBATexSwizzleOpaque : public FragmentTexOpaqueBinding {
 202 public:
 203     std::string getShaderString() const;
 204 };
 205
 206 // Fragment shader for external textures.
 207 class FragmentShaderOESImageExternal : public FragmentTexAlphaBinding {
 208 public:
 209     std::string getShaderString() const;
 210     bool init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 211 private:
 212     int m_samplerLocation;
 213 };
 214
 215 class FragmentShaderRGBATexAlphaAA {
 216 public:
 217     FragmentShaderRGBATexAlphaAA();
 218
 219     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 220     std::string getShaderString() const;
 221
 222     int alphaLocation() const { return m_alphaLocation; }
 223     int samplerLocation() const { return m_samplerLocation; }
 224     int edgeLocation() const { return m_edgeLocation; }
 225
 226 private:
 227     int m_samplerLocation;
 228     int m_alphaLocation;
 229     int m_edgeLocation;
 230 };
 231
 232 class FragmentTexClampAlphaAABinding {
 233 public:
 234     FragmentTexClampAlphaAABinding();
 235
 236     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 237     int alphaLocation() const { return m_alphaLocation; }
 238     int samplerLocation() const { return m_samplerLocation; }
 239     int fragmentTexTransformLocation() const { return m_fragmentTexTransformLocation; }
 240     int edgeLocation() const { return m_edgeLocation; }
 241
 242 private:
 243     int m_samplerLocation;
 244     int m_alphaLocation;
 245     int m_fragmentTexTransformLocation;
 246     int m_edgeLocation;
 247 };
 248
 249 class FragmentShaderRGBATexClampAlphaAA : public FragmentTexClampAlphaAABinding {
 250 public:
 251     std::string getShaderString() const;
 252 };
 253
 254 // Swizzles the red and blue component of sampled texel.
 255 class FragmentShaderRGBATexClampSwizzleAlphaAA : public FragmentTexClampAlphaAABinding {
 256 public:
 257     std::string getShaderString() const;
 258 };
 259
 260 class FragmentShaderRGBATexAlphaMask {
 261 public:
 262     FragmentShaderRGBATexAlphaMask();
 263     std::string getShaderString() const;
 264
 265     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 266     int alphaLocation() const { return m_alphaLocation; }
 267     int samplerLocation() const { return m_samplerLocation; }
 268     int maskSamplerLocation() const { return m_maskSamplerLocation; }
 269     int maskTexCoordScaleLocation() const { return m_maskTexCoordScaleLocation; }
 270     int maskTexCoordOffsetLocation() const { return m_maskTexCoordOffsetLocation; }
 271
 272 private:
 273     int m_samplerLocation;
 274     int m_maskSamplerLocation;
 275     int m_alphaLocation;
 276     int m_maskTexCoordScaleLocation;
 277     int m_maskTexCoordOffsetLocation;
 278 };
 279
 280 class FragmentShaderRGBATexAlphaMaskAA {
 281 public:
 282     FragmentShaderRGBATexAlphaMaskAA();
 283     std::string getShaderString() const;
 284
 285     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 286     int alphaLocation() const { return m_alphaLocation; }
 287     int samplerLocation() const { return m_samplerLocation; }
 288     int maskSamplerLocation() const { return m_maskSamplerLocation; }
 289     int edgeLocation() const { return m_edgeLocation; }
 290     int maskTexCoordScaleLocation() const { return m_maskTexCoordScaleLocation; }
 291     int maskTexCoordOffsetLocation() const { return m_maskTexCoordOffsetLocation; }
 292
 293 private:
 294     int m_samplerLocation;
 295     int m_maskSamplerLocation;
 296     int m_alphaLocation;
 297     int m_edgeLocation;
 298     int m_maskTexCoordScaleLocation;
 299     int m_maskTexCoordOffsetLocation;
 300 };
 301
 302 class FragmentShaderYUVVideo {
 303 public:
 304     FragmentShaderYUVVideo();
 305     std::string getShaderString() const;
 306
 307     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 308
 309     int yTextureLocation() const { return m_yTextureLocation; }
 310     int uTextureLocation() const { return m_uTextureLocation; }
 311     int vTextureLocation() const { return m_vTextureLocation; }
 312     int alphaLocation() const { return m_alphaLocation; }
 313     int yuvMatrixLocation() const { return m_yuvMatrixLocation; }
 314     int yuvAdjLocation() const { return m_yuvAdjLocation; }
 315
 316 private:
 317     int m_yTextureLocation;
 318     int m_uTextureLocation;
 319     int m_vTextureLocation;
 320     int m_alphaLocation;
 321     int m_yuvMatrixLocation;
 322     int m_yuvAdjLocation;
 323 };
 324
 325 class FragmentShaderColor {
 326 public:
 327     FragmentShaderColor();
 328     std::string getShaderString() const;
 329
 330     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 331     int colorLocation() const { return m_colorLocation; }
 332
 333 private:
 334     int m_colorLocation;
 335 };
 336
 337 class FragmentShaderCheckerboard {
 338 public:
 339     FragmentShaderCheckerboard();
 340     std::string getShaderString() const;
 341
 342     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
 343     int alphaLocation() const { return m_alphaLocation; }
 344     int texTransformLocation() const { return m_texTransformLocation; }
 345     int frequencyLocation() const { return m_frequencyLocation; }
 346     int colorLocation() const { return m_colorLocation; }
 347 private:
 348     int m_alphaLocation;
 349     int m_texTransformLocation;
 350     int m_frequencyLocation;
 351     int m_colorLocation;
 352 };
 353
 354 } // namespace cc
 355
 356 #endif  // CC_SHADER_H_