Remove default texture coords / texture matrix

Review URL: https://codereview.appspot.com/6775100

git-svn-id: http://skia.googlecode.com/svn/trunk@6293 2bbb7eff-a529-9590-31e7-b0007b416f81

24 files changed, 44 insertions, 362 deletions

diff --git a/include/gpu/GrBackendEffectFactory.h b/include/gpu/GrBackendEffectFactory.h
index f0854affa7..07467abd7d 100644
--- a/include/gpu/GrBackendEffectFactory.h
+++ b/include/gpu/GrBackendEffectFactory.h
@@ -32,6 +32,7 @@ class GrBackendEffectFactory : public GrNoncopyable {
 public:
     typedef uint32_t EffectKey;
     enum {
+        kNoEffectKey = 0,
         kEffectKeyBits = 12,
         /**
          * Some aspects of the generated code may be determined by the particular textures that are
diff --git a/include/gpu/GrEffectStage.h b/include/gpu/GrEffectStage.h
index f62faee530..e42f19834a 100644
--- a/include/gpu/GrEffectStage.h
+++ b/include/gpu/GrEffectStage.h
@@ -47,7 +47,7 @@ public:
             return false;
         }
 
-        return fMatrix == other.fMatrix && fCoordChangeMatrix == other.fCoordChangeMatrix;
+        return fCoordChangeMatrix == other.fCoordChangeMatrix;
     }
 
     bool operator !=(const GrEffectStage& s) const { return !(*this == s); }
@@ -55,7 +55,6 @@ public:
     GrEffectStage& operator =(const GrEffectStage& other) {
         GrSafeAssign(fEffect, other.fEffect);
         if (NULL != fEffect) {
-            fMatrix = other.fMatrix;
             fCoordChangeMatrix = other.fCoordChangeMatrix;
         }
         return *this;
@@ -101,20 +100,6 @@ public:
     }
 
     /**
-     * Gets the texture matrix. This is will be removed soon and be managed by GrEffect.
-     */
-    const SkMatrix& getMatrix() const { return fMatrix; }
-
-    /**
-     * Gets the matrix to apply at draw time. This is the original texture matrix combined with
-     * any coord system changes. This will be removed when the matrix is managed by GrEffect.
-     */
-    void getTotalMatrix(SkMatrix* matrix) const {
-        *matrix = fMatrix;
-        matrix->preConcat(fCoordChangeMatrix);
-    }
-
-    /**
      * Gets the matrix representing all changes of coordinate system since the GrEffect was
      * installed in the stage.
      */
@@ -127,15 +112,6 @@ public:
     const GrEffect* setEffect(const GrEffect* effect) {
         GrAssert(0 == fSavedCoordChangeCnt);
         GrSafeAssign(fEffect, effect);
-        fMatrix.reset();
-        fCoordChangeMatrix.reset();
-        return effect;
-    }
-
-    const GrEffect* setEffect(const GrEffect* effect, const SkMatrix& matrix) {
-        GrAssert(0 == fSavedCoordChangeCnt);
-        GrSafeAssign(fEffect, effect);
-        fMatrix = matrix;
         fCoordChangeMatrix.reset();
         return effect;
     }
@@ -144,7 +120,6 @@ public:
 
 private:
     SkMatrix            fCoordChangeMatrix;
-    SkMatrix            fMatrix; // TODO: remove this, store in GrEffect
     const GrEffect*     fEffect;
 
     GR_DEBUGCODE(mutable int fSavedCoordChangeCnt;)
diff --git a/src/effects/SkBlendImageFilter.cpp b/src/effects/SkBlendImageFilter.cpp
index 6056e611cb..1394a0a0b5 100644
--- a/src/effects/SkBlendImageFilter.cpp
+++ b/src/effects/SkBlendImageFilter.cpp
@@ -14,6 +14,7 @@
 #include "SkGrPixelRef.h"
 #include "gl/GrGLEffect.h"
 #include "gl/GrGLEffectMatrix.h"
+#include "effects/GrSingleTextureEffect.h"
 #include "GrTBackendEffectFactory.h"
 #endif
 
@@ -246,7 +247,6 @@ GrGLBlendEffect::GrGLBlendEffect(const GrBackendEffectFactory& factory,
                                  const GrEffect& effect)
     : INHERITED(factory),
       fMode(static_cast<const GrBlendEffect&>(effect).mode()) {
-    fRequiresTextureMatrix = false;
 }
 
 GrGLBlendEffect::~GrGLBlendEffect() {
diff --git a/src/effects/SkColorMatrixFilter.cpp b/src/effects/SkColorMatrixFilter.cpp
index fa724cad11..435d7ee2f1 100644
--- a/src/effects/SkColorMatrixFilter.cpp
+++ b/src/effects/SkColorMatrixFilter.cpp
@@ -349,10 +349,7 @@ public:
                  const GrEffect& effect)
         : INHERITED(factory)
         , fMatrixHandle(GrGLUniformManager::kInvalidUniformHandle)
-        , fVectorHandle(GrGLUniformManager::kInvalidUniformHandle) {
-            // no texture
-            fRequiresTextureMatrix = false;
-        }
+        , fVectorHandle(GrGLUniformManager::kInvalidUniformHandle) {}
 
         virtual void emitCode(GrGLShaderBuilder* builder,
                               const GrEffectStage&,
diff --git a/src/effects/SkLightingImageFilter.cpp b/src/effects/SkLightingImageFilter.cpp
index c90f8f3250..48f16b3ff8 100644
--- a/src/effects/SkLightingImageFilter.cpp
+++ b/src/effects/SkLightingImageFilter.cpp
@@ -1067,7 +1067,6 @@ GrGLLightingEffect::GrGLLightingEffect(const GrBackendEffectFactory& factory,
     , fSurfaceScaleUni(kInvalidUniformHandle) {
     const GrLightingEffect& m = static_cast<const GrLightingEffect&>(effect);
     fLight = m.light()->createGLLight();
-    fRequiresTextureMatrix = false;
 }
 
 GrGLLightingEffect::~GrGLLightingEffect() {
diff --git a/src/effects/SkMagnifierImageFilter.cpp b/src/effects/SkMagnifierImageFilter.cpp
index 73a50be70b..8cb1030ce0 100644
--- a/src/effects/SkMagnifierImageFilter.cpp
+++ b/src/effects/SkMagnifierImageFilter.cpp
@@ -107,7 +107,6 @@ GrGLMagnifierEffect::GrGLMagnifierEffect(const GrBackendEffectFactory& factory,
     , fOffsetVar(GrGLUniformManager::kInvalidUniformHandle)
     , fZoomVar(GrGLUniformManager::kInvalidUniformHandle)
     , fInsetVar(GrGLUniformManager::kInvalidUniformHandle) {
-    fRequiresTextureMatrix = false;
 }
 
 void GrGLMagnifierEffect::emitCode(GrGLShaderBuilder* builder,
diff --git a/src/effects/SkMatrixConvolutionImageFilter.cpp b/src/effects/SkMatrixConvolutionImageFilter.cpp
index 0bca260e37..079b764b22 100644
--- a/src/effects/SkMatrixConvolutionImageFilter.cpp
+++ b/src/effects/SkMatrixConvolutionImageFilter.cpp
@@ -15,6 +15,7 @@
 #if SK_SUPPORT_GPU
 #include "gl/GrGLEffect.h"
 #include "gl/GrGLEffectMatrix.h"
+#include "effects/GrSingleTextureEffect.h"
 #include "GrTBackendEffectFactory.h"
 #include "GrTexture.h"
 #include "SkMatrix.h"
@@ -330,7 +331,6 @@ GrGLMatrixConvolutionEffect::GrGLMatrixConvolutionEffect(const GrBackendEffectFa
     fKernelSize = m.kernelSize();
     fTileMode = m.tileMode();
     fConvolveAlpha = m.convolveAlpha();
-    fRequiresTextureMatrix = false;
 }
 
 static void appendTextureLookup(GrGLShaderBuilder* builder,
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 897b1cdb08..a497346b88 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -302,7 +302,6 @@ GrGLMorphologyEffect::GrGLMorphologyEffect(const GrBackendEffectFactory& factory
     const GrMorphologyEffect& m = static_cast<const GrMorphologyEffect&>(effect);
     fRadius = m.radius();
     fType = m.type();
-    fRequiresTextureMatrix = false;
 }
 
 void GrGLMorphologyEffect::emitCode(GrGLShaderBuilder* builder,
diff --git a/src/effects/SkTableColorFilter.cpp b/src/effects/SkTableColorFilter.cpp
index c23f2a5953..0ae7e1950b 100644
--- a/src/effects/SkTableColorFilter.cpp
+++ b/src/effects/SkTableColorFilter.cpp
@@ -270,8 +270,6 @@ private:
 GLColorTableEffect::GLColorTableEffect(
     const GrBackendEffectFactory& factory, const GrEffect& effect)
     : INHERITED(factory) {
-    // texture coords are computed from the incoming color.
-    fRequiresTextureMatrix = false;
  }
 
 void GLColorTableEffect::emitCode(GrGLShaderBuilder* builder,
diff --git a/src/effects/gradients/SkGradientShader.cpp b/src/effects/gradients/SkGradientShader.cpp
index 198f9a5d2f..15c751052c 100644
--- a/src/effects/gradients/SkGradientShader.cpp
+++ b/src/effects/gradients/SkGradientShader.cpp
@@ -679,7 +679,6 @@ GrGLGradientEffect::GrGLGradientEffect(const GrBackendEffectFactory& factory)
     : INHERITED(factory)
     , fCachedYCoord(SK_ScalarMax)
     , fFSYUni(GrGLUniformManager::kInvalidUniformHandle) {
-    fRequiresTextureMatrix = false;
 }
 
 GrGLGradientEffect::~GrGLGradientEffect() { }
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index fd30c54a0f..14eeace563 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -1456,10 +1456,8 @@ void apply_effect(GrContext* context,
     GrContext::AutoRenderTarget art(context, dstTexture->asRenderTarget());
     GrContext::AutoClip acs(context, rect);
 
-    SkMatrix sampleM;
-    sampleM.setIDiv(srcTexture->width(), srcTexture->height());
     GrPaint paint;
-    paint.colorStage(0)->setEffect(effect, sampleM);
+    paint.colorStage(0)->setEffect(effect);
     context->drawRect(paint, rect);
 }
 
diff --git a/src/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp
index a2aad29400..d42896d210 100644
--- a/src/gpu/effects/GrConfigConversionEffect.cpp
+++ b/src/gpu/effects/GrConfigConversionEffect.cpp
@@ -19,7 +19,6 @@ public:
         const GrConfigConversionEffect& effect = static_cast<const GrConfigConversionEffect&>(s);
         fSwapRedAndBlue = effect.swapsRedAndBlue();
         fPMConversion = effect.pmConversion();
-        fRequiresTextureMatrix = false;
     }
 
     virtual void emitCode(GrGLShaderBuilder* builder,
@@ -261,7 +260,7 @@ bool GrConfigConversionEffect::InstallEffect(GrTexture* texture,
         // If we returned a GrConfigConversionEffect that was equivalent to a GrSingleTextureEffect
         // then we may pollute our texture cache with redundant shaders. So in the case that no
         // conversions were requested we instead return a GrSingleTextureEffect.
-        stage->setEffect(SkNEW_ARGS(GrSingleTextureEffect, (texture, matrix)), matrix)->unref();
+        stage->setEffect(SkNEW_ARGS(GrSingleTextureEffect, (texture, matrix)))->unref();
         return true;
     } else {
         if (kRGBA_8888_GrPixelConfig != texture->config() &&
diff --git a/src/gpu/effects/GrConvolutionEffect.cpp b/src/gpu/effects/GrConvolutionEffect.cpp
index 0ab215c126..047dc4165e 100644
--- a/src/gpu/effects/GrConvolutionEffect.cpp
+++ b/src/gpu/effects/GrConvolutionEffect.cpp
@@ -51,7 +51,6 @@ GrGLConvolutionEffect::GrGLConvolutionEffect(const GrBackendEffectFactory& facto
     const GrConvolutionEffect& c =
         static_cast<const GrConvolutionEffect&>(effect);
     fRadius = c.radius();
-    fRequiresTextureMatrix = false;
 }
 
 void GrGLConvolutionEffect::emitCode(GrGLShaderBuilder* builder,
diff --git a/src/gpu/effects/GrSingleTextureEffect.cpp b/src/gpu/effects/GrSingleTextureEffect.cpp
index 0afa18451b..05eff6b3d4 100644
--- a/src/gpu/effects/GrSingleTextureEffect.cpp
+++ b/src/gpu/effects/GrSingleTextureEffect.cpp
@@ -16,9 +16,7 @@
 class GrGLSingleTextureEffect : public GrGLEffect {
 public:
     GrGLSingleTextureEffect(const GrBackendEffectFactory& factory, const GrEffect&)
-    : INHERITED (factory) {
-        fRequiresTextureMatrix = false;
-    }
+    : INHERITED (factory) {}
 
     virtual void emitCode(GrGLShaderBuilder* builder,
                           const GrEffectStage&,
diff --git a/src/gpu/effects/GrTextureDomainEffect.cpp b/src/gpu/effects/GrTextureDomainEffect.cpp
index 9909c3a649..f5152e6d91 100644
--- a/src/gpu/effects/GrTextureDomainEffect.cpp
+++ b/src/gpu/effects/GrTextureDomainEffect.cpp
@@ -39,7 +39,6 @@ GrGLTextureDomainEffect::GrGLTextureDomainEffect(const GrBackendEffectFactory& f
                                                  const GrEffect&)
     : INHERITED(factory)
     , fNameUni(GrGLUniformManager::kInvalidUniformHandle) {
-    fRequiresTextureMatrix = false;
     fPrevDomain[0] = SK_FloatNaN;
 }
 
diff --git a/src/gpu/gl/GrGLEffect.cpp b/src/gpu/gl/GrGLEffect.cpp
index 5e0875b71c..0bbf1f7ccb 100644
--- a/src/gpu/gl/GrGLEffect.cpp
+++ b/src/gpu/gl/GrGLEffect.cpp
@@ -10,8 +10,6 @@
 
 GrGLEffect::GrGLEffect(const GrBackendEffectFactory& factory)
     : fFactory(factory) {
-
-    fRequiresTextureMatrix = true;
 }
 
 GrGLEffect::~GrGLEffect() {
diff --git a/src/gpu/gl/GrGLEffect.h b/src/gpu/gl/GrGLEffect.h
index 0fd5722cb8..f2142c5b22 100644
--- a/src/gpu/gl/GrGLEffect.h
+++ b/src/gpu/gl/GrGLEffect.h
@@ -9,7 +9,6 @@
 #define GrGLEffect_DEFINED
 
 #include "GrBackendEffectFactory.h"
-#include "GrGLProgram.h"
 #include "GrGLShaderBuilder.h"
 #include "GrGLShaderVar.h"
 #include "GrGLSL.h"
@@ -35,6 +34,7 @@ public:
     typedef GrBackendEffectFactory::EffectKey EffectKey;
 
     enum {
+        kNoEffectKey = GrBackendEffectFactory::kNoEffectKey,
         // the number of bits in EffectKey available to GenKey
         kEffectKeyBits = GrBackendEffectFactory::kEffectKeyBits,
     };
@@ -54,9 +54,10 @@ public:
         @param key          The key that was computed by GenKey() from the generating GrEffect.
                             Only the bits indicated by GrBackendEffectFactory::kEffectKeyBits are
                             guaranteed to match the value produced by GenKey();
-        @param vertexCoords A vec2 of texture coordinates in the VS, which may be altered. This will
-                            be removed soon and stages will be responsible for computing their own
-                            coords.
+        @param vertexCoords A vec2 in the VS that holds the position in local coords. This is either
+                            the pre-view-matrix vertex position or if explicit per-vertex texture
+                            coords are used with a stage then it is those coordinates. See
+                            GrVertexLayout.
         @param outputColor  A predefined vec4 in the FS in which the stage should place its output
                             color (or coverage).
         @param inputColor   A vec4 that holds the input color to the stage in the FS. This may be
@@ -87,15 +88,7 @@ public:
 
     static EffectKey GenTextureKey(const GrEffect&, const GrGLCaps&);
 
-    bool requiresTextureMatrix() const { return fRequiresTextureMatrix; }
-
-
 protected:
-    // HACK: This is a temporary field that allows GrGLEffect subclasses to opt into the new
-    // shader gen where a texture matrix is not automatically inserted. It defaults to true and is
-    // set to false in a subclass to opt into the new behavior.
-    bool fRequiresTextureMatrix;
-
     const GrBackendEffectFactory& fFactory;
 };
 
diff --git a/src/gpu/gl/GrGLProgram.cpp b/src/gpu/gl/GrGLProgram.cpp
index 911b5e4547..0283a5ae13 100644
--- a/src/gpu/gl/GrGLProgram.cpp
+++ b/src/gpu/gl/GrGLProgram.cpp
@@ -10,7 +10,6 @@
 #include "GrAllocator.h"
 #include "GrEffect.h"
 #include "GrGLEffect.h"
-#include "gl/GrGLShaderBuilder.h"
 #include "GrGLShaderVar.h"
 #include "GrBackendEffectFactory.h"
 #include "SkTrace.h"
@@ -23,8 +22,6 @@ SK_DEFINE_INST_COUNT(GrGLProgram)
 
 #define PRINT_SHADERS 0
 
-typedef GrGLProgram::Desc::StageDesc StageDesc;
-
 #define COL_ATTR_NAME "aColor"
 #define COV_ATTR_NAME "aCoverage"
 #define EDGE_ATTR_NAME "aEdge"
@@ -80,9 +77,6 @@ GrGLProgram::GrGLProgram(const GrGLContextInfo& gl,
 
     for (int s = 0; s < GrDrawState::kNumStages; ++s) {
         fEffects[s] = NULL;
-        fTextureMatrices[s] = SkMatrix::InvalidMatrix();
-        // this is arbitrary, just initialize to something
-        fTextureOrigin[s] = GrSurface::kBottomLeft_Origin;
     }
 
     this->genProgram(stages);
@@ -602,7 +596,7 @@ bool GrGLProgram::genProgram(const GrEffectStage* stages[]) {
     if (needComputedColor) {
         SkString outColor;
         for (int s = 0; s < fDesc.fFirstCoverageStage; ++s) {
-            if (fDesc.fStages[s].isEnabled()) {
+            if (GrGLEffect::kNoEffectKey != fDesc.fEffectKeys[s]) {
                 // create var to hold stage result
                 outColor = "color";
                 outColor.appendS32(s);
@@ -621,7 +615,7 @@ bool GrGLProgram::genProgram(const GrEffectStage* stages[]) {
 
                 builder.setCurrentStage(s);
                 fEffects[s] = GenStageCode(*stages[s],
-                                           fDesc.fStages[s],
+                                           fDesc.fEffectKeys[s],
                                            &fUniforms.fStages[s],
                                            inColor.size() ? inColor.c_str() : NULL,
                                            outColor.c_str(),
@@ -698,7 +692,7 @@ bool GrGLProgram::genProgram(const GrEffectStage* stages[]) {
             SkString outCoverage;
             const int& startStage = fDesc.fFirstCoverageStage;
             for (int s = startStage; s < GrDrawState::kNumStages; ++s) {
-                if (fDesc.fStages[s].isEnabled()) {
+                if (fDesc.fEffectKeys[s]) {
                     // create var to hold stage output
                     outCoverage = "coverage";
                     outCoverage.appendS32(s);
@@ -726,7 +720,7 @@ bool GrGLProgram::genProgram(const GrEffectStage* stages[]) {
                     }
                     builder.setCurrentStage(s);
                     fEffects[s] = GenStageCode(*stages[s],
-                                               fDesc.fStages[s],
+                                               fDesc.fEffectKeys[s],
                                                &fUniforms.fStages[s],
                                                inCoverage.size() ? inCoverage.c_str() : NULL,
                                                outCoverage.c_str(),
@@ -897,7 +891,7 @@ void GrGLProgram::initSamplerUniforms() {
 
 // TODO: Move this function to GrGLShaderBuilder
 GrGLEffect* GrGLProgram::GenStageCode(const GrEffectStage& stage,
-                                      const StageDesc& desc,
+                                      GrGLEffect::EffectKey key,
                                       StageUniforms* uniforms,
                                       const char* fsInColor, // NULL means no incoming color
                                       const char* fsOutColor,
@@ -907,51 +901,7 @@ GrGLEffect* GrGLProgram::GenStageCode(const GrEffectStage& stage,
     const GrEffect* effect = stage.getEffect();
     GrGLEffect* glEffect = effect->getFactory().createGLInstance(*effect);
 
-    /// Vertex Shader Stuff
-
-    const char* vertexCoords;
-
-    // Has the effect not yet been updated to insert its own texture matrix if necessary.
-    if (glEffect->requiresTextureMatrix()) {
-        // Decide whether we need a matrix to transform texture coords and whether the varying needs
-        // a perspective coord.
-        const char* matName = NULL;
-        GrSLType texCoordVaryingType;
-        if (desc.fOptFlags & StageDesc::kIdentityMatrix_OptFlagBit) {
-            texCoordVaryingType = kVec2f_GrSLType;
-        } else {
-            uniforms->fTextureMatrixUni = builder->addUniform(GrGLShaderBuilder::kVertex_ShaderType,
-                                                              kMat33f_GrSLType, "TexM", &matName);
-            builder->getUniformVariable(uniforms->fTextureMatrixUni);
-
-            if (desc.fOptFlags & StageDesc::kNoPerspective_OptFlagBit) {
-                texCoordVaryingType = kVec2f_GrSLType;
-            } else {
-                texCoordVaryingType = kVec3f_GrSLType;
-            }
-        }
-        const char *varyingVSName, *varyingFSName;
-        builder->addVarying(texCoordVaryingType,
-                            "Stage",
-                            &varyingVSName,
-                            &varyingFSName);
-        builder->setupTextureAccess(varyingFSName, texCoordVaryingType);
-
-        if (!matName) {
-            GrAssert(kVec2f_GrSLType == texCoordVaryingType);
-            builder->fVSCode.appendf("\t%s = %s;\n", varyingVSName, vsInCoord);
-        } else {
-            // varying = texMatrix * texCoord
-            builder->fVSCode.appendf("\t%s = (%s * vec3(%s, 1))%s;\n",
-                                     varyingVSName, matName, vsInCoord,
-                                     vector_all_coords(GrSLTypeToVecLength(texCoordVaryingType)));
-        }
-        vertexCoords = varyingVSName;
-    } else {
-        vertexCoords = vsInCoord;
-    }
-
-    // setup texture samplers for gl effect
+    // setup texture samplers for GL effect
     int numTextures = effect->numTextures();
     SkSTArray<8, GrGLShaderBuilder::TextureSampler> textureSamplers;
     textureSamplers.push_back_n(numTextures);
@@ -965,8 +915,8 @@ GrGLEffect* GrGLProgram::GenStageCode(const GrEffectStage& stage,
     builder->fFSCode.appendf("\t{ // %s \n", glEffect->name());
     glEffect->emitCode(builder,
                        stage,
-                       desc.fEffectKey,
-                       vertexCoords,
+                       key,
+                       vsInCoord,
                        fsOutColor,
                        fsInColor,
                        textureSamplers);
diff --git a/src/gpu/gl/GrGLProgram.h b/src/gpu/gl/GrGLProgram.h
index bc7b3bc4a2..d385e6070e 100644
--- a/src/gpu/gl/GrGLProgram.h
+++ b/src/gpu/gl/GrGLProgram.h
@@ -10,6 +10,7 @@
 #define GrGLProgram_DEFINED
 
 #include "GrDrawState.h"
+#include "GrGLEffect.h"
 #include "GrGLContextInfo.h"
 #include "GrGLSL.h"
 #include "GrGLTexture.h"
@@ -73,8 +74,7 @@ public:
     void setData(const GrDrawState& drawState);
 
     // Parameters that affect code generation
-    // These structs should be kept compact; they are the input to an
-    // expensive hash key generator.
+    // This structs should be kept compact; it is input to an expensive hash key generator.
     struct Desc {
         Desc() {
             // since we use this as part of a key we can't have any uninitialized
@@ -87,30 +87,6 @@ public:
             return reinterpret_cast<const uint32_t*>(this);
         }
 
-        struct StageDesc {
-            enum OptFlagBits {
-                kNoPerspective_OptFlagBit       = 1 << 0,
-                kIdentityMatrix_OptFlagBit      = 1 << 1,
-                kIsEnabled_OptFlagBit           = 1 << 7
-            };
-
-            uint8_t fOptFlags;
-
-            /** Non-zero if this stage has an effect */
-            GrBackendEffectFactory::EffectKey fEffectKey;
-
-            inline bool isEnabled() const {
-                return SkToBool(fOptFlags & kIsEnabled_OptFlagBit);
-            }
-            inline void setEnabled(bool newValue) {
-                if (newValue) {
-                    fOptFlags |= kIsEnabled_OptFlagBit;
-                } else {
-                    fOptFlags &= ~kIsEnabled_OptFlagBit;
-                }
-            }
-        };
-
         // Specifies where the initial color comes from before the stages are applied.
         enum ColorInput {
             kSolidWhite_ColorInput,
@@ -137,7 +113,8 @@ public:
         // stripped of bits that don't affect program generation
         GrVertexLayout fVertexLayout;
 
-        StageDesc fStages[GrDrawState::kNumStages];
+        /** Non-zero if this stage has an effect */
+        GrGLEffect::EffectKey fEffectKeys[GrDrawState::kNumStages];
 
         // To enable experimental geometry shader code (not for use in
         // production)
@@ -155,9 +132,6 @@ public:
     };
     GR_STATIC_ASSERT(!(sizeof(Desc) % 4));
 
-    // for code readability
-    typedef Desc::StageDesc StageDesc;
-
 private:
     struct StageUniforms;
 
@@ -175,7 +149,7 @@ private:
     void genInputColor(GrGLShaderBuilder* builder, SkString* inColor);
 
     static GrGLEffect* GenStageCode(const GrEffectStage& stage,
-                                    const StageDesc& desc, // TODO: Eliminate this
+                                    GrGLEffect::EffectKey key,
                                     StageUniforms* stageUniforms, // TODO: Eliminate this
                                     const char* fsInColor, // NULL means no incoming color
                                     const char* fsOutColor,
@@ -207,11 +181,7 @@ private:
     const char* adjustInColor(const SkString& inColor) const;
 
     struct StageUniforms {
-        UniformHandle fTextureMatrixUni;
         SkTArray<UniformHandle, true> fSamplerUniforms;
-        StageUniforms() {
-            fTextureMatrixUni = GrGLUniformManager::kInvalidUniformHandle;
-        }
     };
 
     struct Uniforms {
@@ -249,9 +219,6 @@ private:
     GrColor                     fCoverage;
     GrColor                     fColorFilterColor;
     int                         fRTHeight;
-    /// When it is sent to GL, the texture matrix will be flipped if the texture origin requires.
-    SkMatrix                    fTextureMatrices[GrDrawState::kNumStages];
-    GrSurface::Origin           fTextureOrigin[GrDrawState::kNumStages];
 
     GrGLEffect*                 fEffects[GrDrawState::kNumStages];
 
diff --git a/src/gpu/gl/GrGLShaderBuilder.cpp b/src/gpu/gl/GrGLShaderBuilder.cpp
index 07cdbffb28..8239740128 100644
--- a/src/gpu/gl/GrGLShaderBuilder.cpp
+++ b/src/gpu/gl/GrGLShaderBuilder.cpp
@@ -94,49 +94,19 @@ GrGLShaderBuilder::GrGLShaderBuilder(const GrGLContextInfo& ctx, GrGLUniformMana
     , fUniformManager(uniformManager)
     , fCurrentStageIdx(kNonStageIdx)
     , fSetupFragPosition(false)
-    , fRTHeightUniform(GrGLUniformManager::kInvalidUniformHandle)
-    , fTexCoordVaryingType(kVoid_GrSLType) {
+    , fRTHeightUniform(GrGLUniformManager::kInvalidUniformHandle) {
 
     fPositionVar = &fVSAttrs.push_back();
     fPositionVar->set(kVec2f_GrSLType, GrGLShaderVar::kAttribute_TypeModifier, "aPosition");
 }
 
-void GrGLShaderBuilder::setupTextureAccess(const char* varyingFSName, GrSLType varyingType) {
-    // FIXME: We don't know how the effect will manipulate the coords. So we give up on using
-    // projective texturing and always give the stage 2D coords. This will be fixed when effects
-    // are responsible for setting up their own tex coords / tex matrices.
-    switch (varyingType) {
-        case kVec2f_GrSLType:
-            fDefaultTexCoordsName = varyingFSName;
-            fTexCoordVaryingType = kVec2f_GrSLType;
-            break;
-        case kVec3f_GrSLType: {
-            fDefaultTexCoordsName = "inCoord";
-            GrAssert(kNonStageIdx != fCurrentStageIdx);
-            fDefaultTexCoordsName.appendS32(fCurrentStageIdx);
-            fTexCoordVaryingType = kVec3f_GrSLType;
-            fFSCode.appendf("\t%s %s = %s.xy / %s.z;\n",
-                            GrGLShaderVar::TypeString(kVec2f_GrSLType),
-                            fDefaultTexCoordsName.c_str(),
-                            varyingFSName,
-                            varyingFSName);
-            break;
-        }
-        default:
-            GrCrash("Tex coords must either be Vec2f or Vec3f");
-    }
-}
-
 void GrGLShaderBuilder::appendTextureLookup(SkString* out,
                                             const GrGLShaderBuilder::TextureSampler& sampler,
                                             const char* coordName,
                                             GrSLType varyingType) const {
     GrAssert(NULL != sampler.textureAccess());
+    GrAssert(NULL != coordName);
 
-    if (NULL == coordName) {
-        coordName = fDefaultTexCoordsName.c_str();
-        varyingType = kVec2f_GrSLType;
-    }
     out->appendf("%s(%s, %s)",
                  sample_function_name(varyingType),
                  this->getUniformCStr(sampler.fSamplerUniform),
diff --git a/src/gpu/gl/GrGLShaderBuilder.h b/src/gpu/gl/GrGLShaderBuilder.h
index 6fdec63e36..852079a09e 100644
--- a/src/gpu/gl/GrGLShaderBuilder.h
+++ b/src/gpu/gl/GrGLShaderBuilder.h
@@ -77,18 +77,12 @@ public:
 
     GrGLShaderBuilder(const GrGLContextInfo&, GrGLUniformManager&);
 
-    /** Determines whether we should use texture2D() or texture2Dproj(), and if an explicit divide
-        is required for the sample coordinates, creates the new variable and emits the code to
-        initialize it. This should only be called by GrGLProgram.*/
-    void setupTextureAccess(const char* varyingFSName, GrSLType varyingType);
-
-    /** Appends a texture sample with projection if necessary; if coordName is not
-        specified, uses fSampleCoords. coordType must either be Vec2f or Vec3f. The latter is
-        interpreted as projective texture coords. The vec length and swizzle order of the result
-        depends on the GrTextureAccess associated with the TextureSampler. */
+    /** Appends a 2D texture sample with projection if necessary. coordType must either be Vec2f or
+        Vec3f. The latter is interpreted as projective texture coords. The vec length and swizzle
+        order of the result depends on the GrTextureAccess associated with the TextureSampler. */
     void appendTextureLookup(SkString* out,
                              const TextureSampler&,
-                             const char* coordName = NULL,
+                             const char* coordName,
                              GrSLType coordType = kVec2f_GrSLType) const;
 
     /** Does the work of appendTextureLookup and modulates the result by modulation. The result is
@@ -98,18 +92,9 @@ public:
     void appendTextureLookupAndModulate(SkString* out,
                                         const char* modulation,
                                         const TextureSampler&,
-                                        const char* coordName = NULL,
+                                        const char* coordName,
                                         GrSLType coordType = kVec2f_GrSLType) const;
 
-    /** Gets the name of the default texture coords which are always kVec2f */
-    const char* defaultTexCoordsName() const { return fDefaultTexCoordsName.c_str(); }
-
-    /* Returns true if the texture matrix from which the default texture coords are computed has
-       perspective. */
-    bool defaultTextureMatrixIsPerspective() const {
-        return fTexCoordVaryingType == kVec3f_GrSLType;
-    }
-
     /** Emits a helper function outside of main(). Currently ShaderType must be
         kFragment_ShaderType. */
     void emitFunction(ShaderType shader,
@@ -233,14 +218,6 @@ private:
     GrGLUniformManager::UniformHandle   fRTHeightUniform;
 
     GrGLShaderVar*                      fPositionVar;
-
-    /// Per-stage settings - only valid while we're inside GrGLProgram::genStageCode().
-    //@{
-    GrSLType         fTexCoordVaryingType;  // the type, either Vec2f or Vec3f, of the coords passed
-                                            // as a varying from the VS to the FS.
-    SkString         fDefaultTexCoordsName; // the name of the default 2D coords value.
-    //@}
-
 };
 
 #endif
diff --git a/src/gpu/gl/GrGpuGL.h b/src/gpu/gl/GrGpuGL.h
index 34af3fd5bb..7f74d8e65c 100644
--- a/src/gpu/gl/GrGpuGL.h
+++ b/src/gpu/gl/GrGpuGL.h
@@ -145,18 +145,10 @@ private:
 
     const GrGLContextInfo& glContextInfo() const { return fGLContextInfo; }
 
-    // adjusts texture matrix to account for orientation
-    static void AdjustTextureMatrix(const GrTexture* texture, SkMatrix* matrix);
-
-    // This helper determines if what optimizations can be applied to the matrix after any coord
-    // adjustments are applied. The return is a bitfield of GrGLProgram::StageDesc::OptFlags.
-    static int TextureMatrixOptFlags(const GrGLTexture* texture, const GrEffectStage& sampler);
-
     static bool BlendCoeffReferencesConstant(GrBlendCoeff coeff);
 
     // for readability of function impls
     typedef GrGLProgram::Desc        ProgramDesc;
-    typedef ProgramDesc::StageDesc   StageDesc;
 
     class ProgramCache : public ::GrNoncopyable {
     public:
@@ -214,9 +206,6 @@ private:
                                     const GrTextureParams& params,
                                     GrGLTexture* nextTexture);
 
-    // sets the texture matrix for the currently bound program
-    void flushTextureMatrix(int stageIdx);
-
     // sets the color specified by GrDrawState::setColor()
     void flushColor(GrColor color);
 
diff --git a/src/gpu/gl/GrGpuGL_program.cpp b/src/gpu/gl/GrGpuGL_program.cpp
index 17a3036e49..73f60ca989 100644
--- a/src/gpu/gl/GrGpuGL_program.cpp
+++ b/src/gpu/gl/GrGpuGL_program.cpp
@@ -159,85 +159,6 @@ void GrGpuGL::flushViewMatrix(DrawType type) {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-// helpers for texture matrices
-
-void GrGpuGL::AdjustTextureMatrix(const GrTexture* texture, SkMatrix* matrix) {
-    GrAssert(NULL != texture);
-    GrAssert(NULL != matrix);
-    if (GrSurface::kBottomLeft_Origin == texture->origin()) {
-        SkMatrix invY;
-        invY.setAll(SK_Scalar1, 0,           0,
-                    0,          -SK_Scalar1, SK_Scalar1,
-                    0,          0,           SkMatrix::I()[8]);
-        matrix->postConcat(invY);
-    }
-}
-
-int GrGpuGL::TextureMatrixOptFlags(const GrGLTexture* texture,
-                                   const GrEffectStage& stage) {
-    GrAssert(NULL != texture);
-    SkMatrix matrix;
-    stage.getTotalMatrix(&matrix);
-
-    bool canBeIndentity = GrSurface::kTopLeft_Origin == texture->origin();
-
-    if (canBeIndentity && matrix.isIdentity()) {
-        return GrGLProgram::StageDesc::kIdentityMatrix_OptFlagBit;
-    } else if (!matrix.hasPerspective()) {
-        return GrGLProgram::StageDesc::kNoPerspective_OptFlagBit;
-    }
-    return 0;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-void GrGpuGL::flushTextureMatrix(int s) {
-    const GrDrawState& drawState = this->getDrawState();
-
-    // FIXME: Still assuming only a single texture per effect
-    const GrEffect* effect = drawState.getStage(s).getEffect();
-    if (0 == effect->numTextures()) {
-        return;
-    }
-    const GrGLTexture* texture = static_cast<const GrGLTexture*>(effect->texture(0));
-    if (NULL != texture) {
-
-        bool originChange = fCurrentProgram->fTextureOrigin[s] != texture->origin();
-
-        UniformHandle matrixUni = fCurrentProgram->fUniforms.fStages[s].fTextureMatrixUni;
-
-        const SkMatrix& hwMatrix = fCurrentProgram->fTextureMatrices[s];
-        SkMatrix samplerMatrix;
-        drawState.getStage(s).getTotalMatrix(&samplerMatrix);
-
-        if (kInvalidUniformHandle != matrixUni &&
-            (originChange || !hwMatrix.cheapEqualTo(samplerMatrix))) {
-
-            SkMatrix m = samplerMatrix;
-            AdjustTextureMatrix(texture, &m);
-
-            // ES doesn't allow you to pass true to the transpose param,
-            // so do our own transpose
-            GrGLfloat mt[]  = {
-                SkScalarToFloat(m[SkMatrix::kMScaleX]),
-                SkScalarToFloat(m[SkMatrix::kMSkewY]),
-                SkScalarToFloat(m[SkMatrix::kMPersp0]),
-                SkScalarToFloat(m[SkMatrix::kMSkewX]),
-                SkScalarToFloat(m[SkMatrix::kMScaleY]),
-                SkScalarToFloat(m[SkMatrix::kMPersp1]),
-                SkScalarToFloat(m[SkMatrix::kMTransX]),
-                SkScalarToFloat(m[SkMatrix::kMTransY]),
-                SkScalarToFloat(m[SkMatrix::kMPersp2])
-            };
-
-            fCurrentProgram->fUniformManager.setMatrix3f(matrixUni, mt);
-            fCurrentProgram->fTextureMatrices[s] = samplerMatrix;
-        }
-
-        fCurrentProgram->fTextureOrigin[s] = texture->origin();
-    }
-}
-
 void GrGpuGL::flushColor(GrColor color) {
     const ProgramDesc& desc = fCurrentProgram->getDesc();
     const GrDrawState& drawState = this->getDrawState();
@@ -386,8 +307,6 @@ bool GrGpuGL::flushGraphicsState(DrawType type) {
         for (int s = 0; s < GrDrawState::kNumStages; ++s) {
             if (this->isStageEnabled(s)) {
                 this->flushBoundTextureAndParams(s);
-
-                this->flushTextureMatrix(s);
             }
         }
     }
@@ -640,40 +559,15 @@ void GrGpuGL::buildProgram(bool isPoints,
     }
 
     for (int s = 0; s < GrDrawState::kNumStages; ++s) {
-        StageDesc& stageDesc = desc->fStages[s];
 
-        stageDesc.fOptFlags = 0;
-        stageDesc.setEnabled(this->isStageEnabled(s));
-
-        bool skip = s < drawState.getFirstCoverageStage() ? skipColor :
-                                                            skipCoverage;
-
-        if (!skip && stageDesc.isEnabled()) {
+        bool skip = s < drawState.getFirstCoverageStage() ? skipColor : skipCoverage;
+        if (!skip && drawState.isStageEnabled(s)) {
             lastEnabledStage = s;
-            const GrEffectStage& stage = drawState.getStage(s);
-            // FIXME: Still assuming one texture per effect
             const GrEffect* effect = drawState.getStage(s).getEffect();
-
-            if (effect->numTextures() > 0) {
-                const GrGLTexture* texture = static_cast<const GrGLTexture*>(effect->texture(0));
-                SkMatrix samplerMatrix;
-                stage.getTotalMatrix(&samplerMatrix);
-                if (NULL != texture) {
-                    // We call this helper function rather then simply checking the client-specified
-                    // texture matrix. This is because we may have to concat a y-inversion to account
-                    // for texture orientation.
-                    stageDesc.fOptFlags |= TextureMatrixOptFlags(texture, stage);
-                }
-            } else {
-                // Set identity to do the minimal amount of extra work for the no texture case.
-                // This will go away when effects manage their own texture matrix.
-                stageDesc.fOptFlags |= StageDesc::kIdentityMatrix_OptFlagBit;
-            }
             const GrBackendEffectFactory& factory = effect->getFactory();
-            stageDesc.fEffectKey = factory.glEffectKey(stage, this->glCaps());
+            desc->fEffectKeys[s] = factory.glEffectKey(drawState.getStage(s), this->glCaps());
         } else {
-            stageDesc.fOptFlags  = 0;
-            stageDesc.fEffectKey = 0;
+            desc->fEffectKeys[s] = 0;
         }
     }
 
diff --git a/tests/GLProgramsTest.cpp b/tests/GLProgramsTest.cpp
index 56dbea4eda..a14c95cdba 100644
--- a/tests/GLProgramsTest.cpp
+++ b/tests/GLProgramsTest.cpp
@@ -31,8 +31,6 @@ bool random_bool(GrRandom* r) {
     return r->nextF() > .5f;
 }
 
-typedef GrGLProgram::StageDesc StageDesc;
-
 const GrEffect* create_random_effect(GrRandom* random,
                                      GrContext* context,
                                      GrTexture* dummyTextures[]) {
@@ -59,13 +57,6 @@ bool GrGpuGL::programUnitTest() {
     dummyDesc.fHeight = 22;
     SkAutoTUnref<GrTexture> dummyTexture2(this->createTexture(dummyDesc, NULL, 0));
 
-    // GrGLSLGeneration glslGeneration =
-            GrGetGLSLGeneration(this->glBinding(), this->glInterface());
-    static const int STAGE_OPTS[] = {
-        0,
-        StageDesc::kNoPerspective_OptFlagBit,
-    };
-
     static const int NUM_TESTS = 512;
 
     GrRandom random;
@@ -118,7 +109,6 @@ bool GrGpuGL::programUnitTest() {
         GrEffectStage stages[GrDrawState::kNumStages];
 
         for (int s = 0; s < GrDrawState::kNumStages; ++s) {
-            StageDesc& stageDesc = pdesc.fStages[s];
             // enable the stage?
             if (random_bool(&random)) {
                 // use separate tex coords?
@@ -126,24 +116,18 @@ bool GrGpuGL::programUnitTest() {
                     int t = random_int(&random, GrDrawState::kMaxTexCoords);
                     pdesc.fVertexLayout |= StageTexCoordVertexLayoutBit(s, t);
                 }
-                stageDesc.setEnabled(true);
-            }
-            // use text-formatted verts?
-            if (random_bool(&random)) {
-                pdesc.fVertexLayout |= kTextFormat_VertexLayoutBit;
-            }
-
-            stageDesc.fEffectKey = 0;
-            stageDesc.fOptFlags |= STAGE_OPTS[random_int(&random, GR_ARRAY_COUNT(STAGE_OPTS))];
+                // use text-formatted verts?
+                if (random_bool(&random)) {
+                    pdesc.fVertexLayout |= kTextFormat_VertexLayoutBit;
+                }
 
-            if (stageDesc.isEnabled()) {
                 GrTexture* dummyTextures[] = {dummyTexture1.get(), dummyTexture2.get()};
                 SkAutoTUnref<const GrEffect> effect(create_random_effect(&random,
-                                                                         getContext(),
-                                                                         dummyTextures));
+                                                                            getContext(),
+                                                                            dummyTextures));
                 stages[s].setEffect(effect.get());
                 if (NULL != stages[s].getEffect()) {
-                    stageDesc.fEffectKey =
+                    pdesc.fEffectKeys[s] =
                         stages[s].getEffect()->getFactory().glEffectKey(stages[s], this->glCaps());
                 }
             }