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-rw-r--r--src/core/SkXfermode.cpp474
1 files changed, 4 insertions, 470 deletions
diff --git a/src/core/SkXfermode.cpp b/src/core/SkXfermode.cpp
index a673dfdd7f..9d727f07f1 100644
--- a/src/core/SkXfermode.cpp
+++ b/src/core/SkXfermode.cpp
@@ -795,474 +795,6 @@ void SkXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
}
}
-//////////////////////////////////////////////////////////////////////////////
-
-#if SK_SUPPORT_GPU
-
-#include "GrFragmentProcessor.h"
-#include "GrCoordTransform.h"
-#include "GrInvariantOutput.h"
-#include "GrProcessorUnitTest.h"
-#include "gl/GrGLProcessor.h"
-#include "gl/builders/GrGLProgramBuilder.h"
-
-/**
- * GrProcessor that implements the all the separable xfer modes that cannot be expressed as Coeffs.
- */
-class XferEffect : public GrFragmentProcessor {
-public:
- static bool IsSupportedMode(SkXfermode::Mode mode) {
- return mode > SkXfermode::kLastCoeffMode && mode <= SkXfermode::kLastMode;
- }
-
- static GrFragmentProcessor* Create(SkXfermode::Mode mode, GrTexture* background) {
- if (!IsSupportedMode(mode)) {
- return NULL;
- } else {
- return SkNEW_ARGS(XferEffect, (mode, background));
- }
- }
-
- virtual void getGLProcessorKey(const GrGLCaps& caps,
- GrProcessorKeyBuilder* b) const SK_OVERRIDE {
- GLProcessor::GenKey(*this, caps, b);
- }
-
- GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE {
- return SkNEW_ARGS(GLProcessor, (*this));
- }
-
- const char* name() const SK_OVERRIDE { return "XferEffect"; }
-
- SkXfermode::Mode mode() const { return fMode; }
- const GrTextureAccess& backgroundAccess() const { return fBackgroundAccess; }
-
- class GLProcessor : public GrGLFragmentProcessor {
- public:
- GLProcessor(const GrFragmentProcessor&) {}
-
- virtual void emitCode(GrGLFPBuilder* builder,
- const GrFragmentProcessor& fp,
- const char* outputColor,
- const char* inputColor,
- const TransformedCoordsArray& coords,
- const TextureSamplerArray& samplers) SK_OVERRIDE {
- SkXfermode::Mode mode = fp.cast<XferEffect>().mode();
- const GrTexture* backgroundTex =
- fp.cast<XferEffect>().backgroundAccess().getTexture();
- GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
- const char* dstColor;
- if (backgroundTex) {
- dstColor = "bgColor";
- fsBuilder->codeAppendf("\t\tvec4 %s = ", dstColor);
- fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coords[0].getType());
- fsBuilder->codeAppendf(";\n");
- } else {
- dstColor = fsBuilder->dstColor();
- }
- SkASSERT(dstColor);
-
- // We don't try to optimize for this case at all
- if (NULL == inputColor) {
- fsBuilder->codeAppendf("\t\tconst vec4 ones = vec4(1);\n");
- inputColor = "ones";
- }
- fsBuilder->codeAppendf("\t\t// SkXfermode::Mode: %s\n", SkXfermode::ModeName(mode));
-
- // These all perform src-over on the alpha channel.
- fsBuilder->codeAppendf("\t\t%s.a = %s.a + (1.0 - %s.a) * %s.a;\n",
- outputColor, inputColor, inputColor, dstColor);
-
- switch (mode) {
- case SkXfermode::kOverlay_Mode:
- // Overlay is Hard-Light with the src and dst reversed
- HardLight(fsBuilder, outputColor, dstColor, inputColor);
- break;
- case SkXfermode::kDarken_Mode:
- fsBuilder->codeAppendf("\t\t%s.rgb = min((1.0 - %s.a) * %s.rgb + %s.rgb, "
- "(1.0 - %s.a) * %s.rgb + %s.rgb);\n",
- outputColor,
- inputColor, dstColor, inputColor,
- dstColor, inputColor, dstColor);
- break;
- case SkXfermode::kLighten_Mode:
- fsBuilder->codeAppendf("\t\t%s.rgb = max((1.0 - %s.a) * %s.rgb + %s.rgb, "
- "(1.0 - %s.a) * %s.rgb + %s.rgb);\n",
- outputColor,
- inputColor, dstColor, inputColor,
- dstColor, inputColor, dstColor);
- break;
- case SkXfermode::kColorDodge_Mode:
- ColorDodgeComponent(fsBuilder, outputColor, inputColor, dstColor, 'r');
- ColorDodgeComponent(fsBuilder, outputColor, inputColor, dstColor, 'g');
- ColorDodgeComponent(fsBuilder, outputColor, inputColor, dstColor, 'b');
- break;
- case SkXfermode::kColorBurn_Mode:
- ColorBurnComponent(fsBuilder, outputColor, inputColor, dstColor, 'r');
- ColorBurnComponent(fsBuilder, outputColor, inputColor, dstColor, 'g');
- ColorBurnComponent(fsBuilder, outputColor, inputColor, dstColor, 'b');
- break;
- case SkXfermode::kHardLight_Mode:
- HardLight(fsBuilder, outputColor, inputColor, dstColor);
- break;
- case SkXfermode::kSoftLight_Mode:
- fsBuilder->codeAppendf("\t\tif (0.0 == %s.a) {\n", dstColor);
- fsBuilder->codeAppendf("\t\t\t%s.rgba = %s;\n", outputColor, inputColor);
- fsBuilder->codeAppendf("\t\t} else {\n");
- SoftLightComponentPosDstAlpha(fsBuilder, outputColor, inputColor, dstColor, 'r');
- SoftLightComponentPosDstAlpha(fsBuilder, outputColor, inputColor, dstColor, 'g');
- SoftLightComponentPosDstAlpha(fsBuilder, outputColor, inputColor, dstColor, 'b');
- fsBuilder->codeAppendf("\t\t}\n");
- break;
- case SkXfermode::kDifference_Mode:
- fsBuilder->codeAppendf("\t\t%s.rgb = %s.rgb + %s.rgb -"
- "2.0 * min(%s.rgb * %s.a, %s.rgb * %s.a);\n",
- outputColor, inputColor, dstColor, inputColor, dstColor,
- dstColor, inputColor);
- break;
- case SkXfermode::kExclusion_Mode:
- fsBuilder->codeAppendf("\t\t%s.rgb = %s.rgb + %s.rgb - "
- "2.0 * %s.rgb * %s.rgb;\n",
- outputColor, dstColor, inputColor, dstColor, inputColor);
- break;
- case SkXfermode::kMultiply_Mode:
- fsBuilder->codeAppendf("\t\t%s.rgb = (1.0 - %s.a) * %s.rgb + "
- "(1.0 - %s.a) * %s.rgb + "
- "%s.rgb * %s.rgb;\n",
- outputColor, inputColor, dstColor, dstColor, inputColor,
- inputColor, dstColor);
- break;
- case SkXfermode::kHue_Mode: {
- // SetLum(SetSat(S * Da, Sat(D * Sa)), Sa*Da, D*Sa) + (1 - Sa) * D + (1 - Da) * S
- SkString setSat, setLum;
- AddSatFunction(fsBuilder, &setSat);
- AddLumFunction(fsBuilder, &setLum);
- fsBuilder->codeAppendf("\t\tvec4 dstSrcAlpha = %s * %s.a;\n",
- dstColor, inputColor);
- fsBuilder->codeAppendf("\t\t%s.rgb = %s(%s(%s.rgb * %s.a, dstSrcAlpha.rgb), dstSrcAlpha.a, dstSrcAlpha.rgb);\n",
- outputColor, setLum.c_str(), setSat.c_str(), inputColor,
- dstColor);
- fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb + (1.0 - %s.a) * %s.rgb;\n",
- outputColor, inputColor, dstColor, dstColor, inputColor);
- break;
- }
- case SkXfermode::kSaturation_Mode: {
- // SetLum(SetSat(D * Sa, Sat(S * Da)), Sa*Da, D*Sa)) + (1 - Sa) * D + (1 - Da) * S
- SkString setSat, setLum;
- AddSatFunction(fsBuilder, &setSat);
- AddLumFunction(fsBuilder, &setLum);
- fsBuilder->codeAppendf("\t\tvec4 dstSrcAlpha = %s * %s.a;\n",
- dstColor, inputColor);
- fsBuilder->codeAppendf("\t\t%s.rgb = %s(%s(dstSrcAlpha.rgb, %s.rgb * %s.a), dstSrcAlpha.a, dstSrcAlpha.rgb);\n",
- outputColor, setLum.c_str(), setSat.c_str(), inputColor,
- dstColor);
- fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb + (1.0 - %s.a) * %s.rgb;\n",
- outputColor, inputColor, dstColor, dstColor, inputColor);
- break;
- }
- case SkXfermode::kColor_Mode: {
- // SetLum(S * Da, Sa* Da, D * Sa) + (1 - Sa) * D + (1 - Da) * S
- SkString setLum;
- AddLumFunction(fsBuilder, &setLum);
- fsBuilder->codeAppendf("\t\tvec4 srcDstAlpha = %s * %s.a;\n",
- inputColor, dstColor);
- fsBuilder->codeAppendf("\t\t%s.rgb = %s(srcDstAlpha.rgb, srcDstAlpha.a, %s.rgb * %s.a);\n",
- outputColor, setLum.c_str(), dstColor, inputColor);
- fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb + (1.0 - %s.a) * %s.rgb;\n",
- outputColor, inputColor, dstColor, dstColor, inputColor);
- break;
- }
- case SkXfermode::kLuminosity_Mode: {
- // SetLum(D * Sa, Sa* Da, S * Da) + (1 - Sa) * D + (1 - Da) * S
- SkString setLum;
- AddLumFunction(fsBuilder, &setLum);
- fsBuilder->codeAppendf("\t\tvec4 srcDstAlpha = %s * %s.a;\n",
- inputColor, dstColor);
- fsBuilder->codeAppendf("\t\t%s.rgb = %s(%s.rgb * %s.a, srcDstAlpha.a, srcDstAlpha.rgb);\n",
- outputColor, setLum.c_str(), dstColor, inputColor);
- fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb + (1.0 - %s.a) * %s.rgb;\n",
- outputColor, inputColor, dstColor, dstColor, inputColor);
- break;
- }
- default:
- SkFAIL("Unknown XferEffect mode.");
- break;
- }
- }
-
- static inline void GenKey(const GrProcessor& proc, const GrGLCaps&,
- GrProcessorKeyBuilder* b) {
- // The background may come from the dst or from a texture.
- uint32_t key = proc.numTextures();
- SkASSERT(key <= 1);
- key |= proc.cast<XferEffect>().mode() << 1;
- b->add32(key);
- }
-
- private:
- static void HardLight(GrGLFPFragmentBuilder* fsBuilder,
- const char* final,
- const char* src,
- const char* dst) {
- static const char kComponents[] = {'r', 'g', 'b'};
- for (size_t i = 0; i < SK_ARRAY_COUNT(kComponents); ++i) {
- char component = kComponents[i];
- fsBuilder->codeAppendf("\t\tif (2.0 * %s.%c <= %s.a) {\n", src, component, src);
- fsBuilder->codeAppendf("\t\t\t%s.%c = 2.0 * %s.%c * %s.%c;\n", final, component, src, component, dst, component);
- fsBuilder->codeAppend("\t\t} else {\n");
- fsBuilder->codeAppendf("\t\t\t%s.%c = %s.a * %s.a - 2.0 * (%s.a - %s.%c) * (%s.a - %s.%c);\n",
- final, component, src, dst, dst, dst, component, src, src, component);
- fsBuilder->codeAppend("\t\t}\n");
- }
- fsBuilder->codeAppendf("\t\t%s.rgb += %s.rgb * (1.0 - %s.a) + %s.rgb * (1.0 - %s.a);\n",
- final, src, dst, dst, src);
- }
-
- // Does one component of color-dodge
- static void ColorDodgeComponent(GrGLFPFragmentBuilder* fsBuilder,
- const char* final,
- const char* src,
- const char* dst,
- const char component) {
- fsBuilder->codeAppendf("\t\tif (0.0 == %s.%c) {\n", dst, component);
- fsBuilder->codeAppendf("\t\t\t%s.%c = %s.%c * (1.0 - %s.a);\n",
- final, component, src, component, dst);
- fsBuilder->codeAppend("\t\t} else {\n");
- fsBuilder->codeAppendf("\t\t\tfloat d = %s.a - %s.%c;\n", src, src, component);
- fsBuilder->codeAppend("\t\t\tif (0.0 == d) {\n");
- fsBuilder->codeAppendf("\t\t\t\t%s.%c = %s.a * %s.a + %s.%c * (1.0 - %s.a) + %s.%c * (1.0 - %s.a);\n",
- final, component, src, dst, src, component, dst, dst, component,
- src);
- fsBuilder->codeAppend("\t\t\t} else {\n");
- fsBuilder->codeAppendf("\t\t\t\td = min(%s.a, %s.%c * %s.a / d);\n",
- dst, dst, component, src);
- fsBuilder->codeAppendf("\t\t\t\t%s.%c = d * %s.a + %s.%c * (1.0 - %s.a) + %s.%c * (1.0 - %s.a);\n",
- final, component, src, src, component, dst, dst, component, src);
- fsBuilder->codeAppend("\t\t\t}\n");
- fsBuilder->codeAppend("\t\t}\n");
- }
-
- // Does one component of color-burn
- static void ColorBurnComponent(GrGLFPFragmentBuilder* fsBuilder,
- const char* final,
- const char* src,
- const char* dst,
- const char component) {
- fsBuilder->codeAppendf("\t\tif (%s.a == %s.%c) {\n", dst, dst, component);
- fsBuilder->codeAppendf("\t\t\t%s.%c = %s.a * %s.a + %s.%c * (1.0 - %s.a) + %s.%c * (1.0 - %s.a);\n",
- final, component, src, dst, src, component, dst, dst, component,
- src);
- fsBuilder->codeAppendf("\t\t} else if (0.0 == %s.%c) {\n", src, component);
- fsBuilder->codeAppendf("\t\t\t%s.%c = %s.%c * (1.0 - %s.a);\n",
- final, component, dst, component, src);
- fsBuilder->codeAppend("\t\t} else {\n");
- fsBuilder->codeAppendf("\t\t\tfloat d = max(0.0, %s.a - (%s.a - %s.%c) * %s.a / %s.%c);\n",
- dst, dst, dst, component, src, src, component);
- fsBuilder->codeAppendf("\t\t\t%s.%c = %s.a * d + %s.%c * (1.0 - %s.a) + %s.%c * (1.0 - %s.a);\n",
- final, component, src, src, component, dst, dst, component, src);
- fsBuilder->codeAppend("\t\t}\n");
- }
-
- // Does one component of soft-light. Caller should have already checked that dst alpha > 0.
- static void SoftLightComponentPosDstAlpha(GrGLFPFragmentBuilder* fsBuilder,
- const char* final,
- const char* src,
- const char* dst,
- const char component) {
- // if (2S < Sa)
- fsBuilder->codeAppendf("\t\t\tif (2.0 * %s.%c <= %s.a) {\n", src, component, src);
- // (D^2 (Sa-2 S))/Da+(1-Da) S+D (-Sa+2 S+1)
- fsBuilder->codeAppendf("\t\t\t\t%s.%c = (%s.%c*%s.%c*(%s.a - 2.0*%s.%c)) / %s.a + (1.0 - %s.a) * %s.%c + %s.%c*(-%s.a + 2.0*%s.%c + 1.0);\n",
- final, component, dst, component, dst, component, src, src,
- component, dst, dst, src, component, dst, component, src, src,
- component);
- // else if (4D < Da)
- fsBuilder->codeAppendf("\t\t\t} else if (4.0 * %s.%c <= %s.a) {\n",
- dst, component, dst);
- fsBuilder->codeAppendf("\t\t\t\tfloat DSqd = %s.%c * %s.%c;\n",
- dst, component, dst, component);
- fsBuilder->codeAppendf("\t\t\t\tfloat DCub = DSqd * %s.%c;\n", dst, component);
- fsBuilder->codeAppendf("\t\t\t\tfloat DaSqd = %s.a * %s.a;\n", dst, dst);
- fsBuilder->codeAppendf("\t\t\t\tfloat DaCub = DaSqd * %s.a;\n", dst);
- // (Da^3 (-S)+Da^2 (S-D (3 Sa-6 S-1))+12 Da D^2 (Sa-2 S)-16 D^3 (Sa-2 S))/Da^2
- fsBuilder->codeAppendf("\t\t\t\t%s.%c = (-DaCub*%s.%c + DaSqd*(%s.%c - %s.%c * (3.0*%s.a - 6.0*%s.%c - 1.0)) + 12.0*%s.a*DSqd*(%s.a - 2.0*%s.%c) - 16.0*DCub * (%s.a - 2.0*%s.%c)) / DaSqd;\n",
- final, component, src, component, src, component, dst, component,
- src, src, component, dst, src, src, component, src, src,
- component);
- fsBuilder->codeAppendf("\t\t\t} else {\n");
- // -sqrt(Da * D) (Sa-2 S)-Da S+D (Sa-2 S+1)+S
- fsBuilder->codeAppendf("\t\t\t\t%s.%c = -sqrt(%s.a*%s.%c)*(%s.a - 2.0*%s.%c) - %s.a*%s.%c + %s.%c*(%s.a - 2.0*%s.%c + 1.0) + %s.%c;\n",
- final, component, dst, dst, component, src, src, component, dst,
- src, component, dst, component, src, src, component, src,
- component);
- fsBuilder->codeAppendf("\t\t\t}\n");
- }
-
- // Adds a function that takes two colors and an alpha as input. It produces a color with the
- // hue and saturation of the first color, the luminosity of the second color, and the input
- // alpha. It has this signature:
- // vec3 set_luminance(vec3 hueSatColor, float alpha, vec3 lumColor).
- static void AddLumFunction(GrGLFPFragmentBuilder* fsBuilder, SkString* setLumFunction) {
- // Emit a helper that gets the luminance of a color.
- SkString getFunction;
- GrGLShaderVar getLumArgs[] = {
- GrGLShaderVar("color", kVec3f_GrSLType),
- };
- SkString getLumBody("\treturn dot(vec3(0.3, 0.59, 0.11), color);\n");
- fsBuilder->emitFunction(kFloat_GrSLType,
- "luminance",
- SK_ARRAY_COUNT(getLumArgs), getLumArgs,
- getLumBody.c_str(),
- &getFunction);
-
- // Emit the set luminance function.
- GrGLShaderVar setLumArgs[] = {
- GrGLShaderVar("hueSat", kVec3f_GrSLType),
- GrGLShaderVar("alpha", kFloat_GrSLType),
- GrGLShaderVar("lumColor", kVec3f_GrSLType),
- };
- SkString setLumBody;
- setLumBody.printf("\tfloat diff = %s(lumColor - hueSat);\n", getFunction.c_str());
- setLumBody.append("\tvec3 outColor = hueSat + diff;\n");
- setLumBody.appendf("\tfloat outLum = %s(outColor);\n", getFunction.c_str());
- setLumBody.append("\tfloat minComp = min(min(outColor.r, outColor.g), outColor.b);\n"
- "\tfloat maxComp = max(max(outColor.r, outColor.g), outColor.b);\n"
- "\tif (minComp < 0.0 && outLum != minComp) {\n"
- "\t\toutColor = outLum + ((outColor - vec3(outLum, outLum, outLum)) * outLum) / (outLum - minComp);\n"
- "\t}\n"
- "\tif (maxComp > alpha && maxComp != outLum) {\n"
- "\t\toutColor = outLum + ((outColor - vec3(outLum, outLum, outLum)) * (alpha - outLum)) / (maxComp - outLum);\n"
- "\t}\n"
- "\treturn outColor;\n");
- fsBuilder->emitFunction(kVec3f_GrSLType,
- "set_luminance",
- SK_ARRAY_COUNT(setLumArgs), setLumArgs,
- setLumBody.c_str(),
- setLumFunction);
- }
-
- // Adds a function that creates a color with the hue and luminosity of one input color and
- // the saturation of another color. It will have this signature:
- // float set_saturation(vec3 hueLumColor, vec3 satColor)
- static void AddSatFunction(GrGLFPFragmentBuilder* fsBuilder, SkString* setSatFunction) {
- // Emit a helper that gets the saturation of a color
- SkString getFunction;
- GrGLShaderVar getSatArgs[] = { GrGLShaderVar("color", kVec3f_GrSLType) };
- SkString getSatBody;
- getSatBody.printf("\treturn max(max(color.r, color.g), color.b) - "
- "min(min(color.r, color.g), color.b);\n");
- fsBuilder->emitFunction(kFloat_GrSLType,
- "saturation",
- SK_ARRAY_COUNT(getSatArgs), getSatArgs,
- getSatBody.c_str(),
- &getFunction);
-
- // Emit a helper that sets the saturation given sorted input channels. This used
- // to use inout params for min, mid, and max components but that seems to cause
- // problems on PowerVR drivers. So instead it returns a vec3 where r, g ,b are the
- // adjusted min, mid, and max inputs, respectively.
- SkString helperFunction;
- GrGLShaderVar helperArgs[] = {
- GrGLShaderVar("minComp", kFloat_GrSLType),
- GrGLShaderVar("midComp", kFloat_GrSLType),
- GrGLShaderVar("maxComp", kFloat_GrSLType),
- GrGLShaderVar("sat", kFloat_GrSLType),
- };
- static const char kHelperBody[] = "\tif (minComp < maxComp) {\n"
- "\t\tvec3 result;\n"
- "\t\tresult.r = 0.0;\n"
- "\t\tresult.g = sat * (midComp - minComp) / (maxComp - minComp);\n"
- "\t\tresult.b = sat;\n"
- "\t\treturn result;\n"
- "\t} else {\n"
- "\t\treturn vec3(0, 0, 0);\n"
- "\t}\n";
- fsBuilder->emitFunction(kVec3f_GrSLType,
- "set_saturation_helper",
- SK_ARRAY_COUNT(helperArgs), helperArgs,
- kHelperBody,
- &helperFunction);
-
- GrGLShaderVar setSatArgs[] = {
- GrGLShaderVar("hueLumColor", kVec3f_GrSLType),
- GrGLShaderVar("satColor", kVec3f_GrSLType),
- };
- const char* helpFunc = helperFunction.c_str();
- SkString setSatBody;
- setSatBody.appendf("\tfloat sat = %s(satColor);\n"
- "\tif (hueLumColor.r <= hueLumColor.g) {\n"
- "\t\tif (hueLumColor.g <= hueLumColor.b) {\n"
- "\t\t\thueLumColor.rgb = %s(hueLumColor.r, hueLumColor.g, hueLumColor.b, sat);\n"
- "\t\t} else if (hueLumColor.r <= hueLumColor.b) {\n"
- "\t\t\thueLumColor.rbg = %s(hueLumColor.r, hueLumColor.b, hueLumColor.g, sat);\n"
- "\t\t} else {\n"
- "\t\t\thueLumColor.brg = %s(hueLumColor.b, hueLumColor.r, hueLumColor.g, sat);\n"
- "\t\t}\n"
- "\t} else if (hueLumColor.r <= hueLumColor.b) {\n"
- "\t\thueLumColor.grb = %s(hueLumColor.g, hueLumColor.r, hueLumColor.b, sat);\n"
- "\t} else if (hueLumColor.g <= hueLumColor.b) {\n"
- "\t\thueLumColor.gbr = %s(hueLumColor.g, hueLumColor.b, hueLumColor.r, sat);\n"
- "\t} else {\n"
- "\t\thueLumColor.bgr = %s(hueLumColor.b, hueLumColor.g, hueLumColor.r, sat);\n"
- "\t}\n"
- "\treturn hueLumColor;\n",
- getFunction.c_str(), helpFunc, helpFunc, helpFunc, helpFunc,
- helpFunc, helpFunc);
- fsBuilder->emitFunction(kVec3f_GrSLType,
- "set_saturation",
- SK_ARRAY_COUNT(setSatArgs), setSatArgs,
- setSatBody.c_str(),
- setSatFunction);
-
- }
-
- typedef GrGLFragmentProcessor INHERITED;
- };
-
- GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
-
-private:
- XferEffect(SkXfermode::Mode mode, GrTexture* background)
- : fMode(mode) {
- this->initClassID<XferEffect>();
- if (background) {
- fBackgroundTransform.reset(kLocal_GrCoordSet, background,
- GrTextureParams::kNone_FilterMode);
- this->addCoordTransform(&fBackgroundTransform);
- fBackgroundAccess.reset(background);
- this->addTextureAccess(&fBackgroundAccess);
- } else {
- this->setWillReadDstColor();
- }
- }
- bool onIsEqual(const GrFragmentProcessor& other) const SK_OVERRIDE {
- const XferEffect& s = other.cast<XferEffect>();
- return fMode == s.fMode;
- }
-
- void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE {
- inout->setToUnknown(GrInvariantOutput::kWill_ReadInput);
- }
-
- SkXfermode::Mode fMode;
- GrCoordTransform fBackgroundTransform;
- GrTextureAccess fBackgroundAccess;
-
- typedef GrFragmentProcessor INHERITED;
-};
-
-GR_DEFINE_FRAGMENT_PROCESSOR_TEST(XferEffect);
-GrFragmentProcessor* XferEffect::TestCreate(SkRandom* rand,
- GrContext*,
- const GrDrawTargetCaps&,
- GrTexture*[]) {
- int mode = rand->nextRangeU(SkXfermode::kLastCoeffMode + 1, SkXfermode::kLastSeparableMode);
-
- return SkNEW_ARGS(XferEffect, (static_cast<SkXfermode::Mode>(mode), NULL));
-}
-
-#endif
-
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
@@ -1387,11 +919,13 @@ void SkProcCoeffXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
}
#if SK_SUPPORT_GPU
+#include "effects/GrCustomXfermode.h"
+
bool SkProcCoeffXfermode::asFragmentProcessor(GrFragmentProcessor** fp,
GrTexture* background) const {
- if (XferEffect::IsSupportedMode(fMode)) {
+ if (GrCustomXfermode::IsSupportedMode(fMode)) {
if (fp) {
- *fp = XferEffect::Create(fMode, background);
+ *fp = GrCustomXfermode::CreateFP(fMode, background);
SkASSERT(*fp);
}
return true;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 07:55:37 +0000