Reland r5963 with two fixes:

Missing ref in GrSweepGradient::TestCreate.
Must reset() the sampler in setup_drawstate_aaclip() to avoid hitting a (dubious) assert.



git-svn-id: http://skia.googlecode.com/svn/trunk@5964 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrClipMaskManager.cpp b/src/gpu/GrClipMaskManager.cpp
index 322fba1..6104f66 100644
--- a/src/gpu/GrClipMaskManager.cpp
+++ b/src/gpu/GrClipMaskManager.cpp
@@ -33,7 +33,7 @@
     GrDrawState* drawState = gpu->drawState();
     GrAssert(drawState);
 
-    static const int maskStage = GrPaint::kTotalStages+1;
+    static const int kMaskStage = GrPaint::kTotalStages+1;
 
     GrMatrix mat;
     mat.setIDiv(result->width(), result->height());
@@ -41,9 +41,8 @@
                      SkIntToScalar(-devBound.fTop));
     mat.preConcat(drawState->getViewMatrix());
 
-    drawState->sampler(maskStage)->reset(mat);
-
-    drawState->createTextureEffect(maskStage, result);
+    drawState->sampler(kMaskStage)->reset();
+    drawState->createTextureEffect(kMaskStage, result, mat);
 }
 
 bool path_needs_SW_renderer(GrContext* context,
@@ -495,8 +494,7 @@
     GrMatrix sampleM;
     sampleM.setIDiv(texture->width(), texture->height());
 
-    drawState->sampler(0)->reset(sampleM);
-    drawState->createTextureEffect(0, texture);
+    drawState->createTextureEffect(0, texture, sampleM);
 
     GrRect rect = GrRect::MakeWH(SkIntToScalar(target->width()),
                                  SkIntToScalar(target->height()));
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index ee3a4e1..8b7d2d0 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -202,11 +202,10 @@
     drawState->setRenderTarget(rt);
     GrMatrix sampleM;
     sampleM.setIDiv(texture->width(), texture->height());
-    drawState->sampler(0)->reset(sampleM);
     SkAutoTUnref<GrConvolutionEffect> conv(SkNEW_ARGS(GrConvolutionEffect,
                                                       (texture, direction, radius,
                                                        sigma)));
-    drawState->sampler(0)->setCustomStage(conv);
+    drawState->sampler(0)->setCustomStage(conv, sampleM);
     target->drawSimpleRect(rect, NULL);
 }
 
@@ -313,9 +312,8 @@
         // if filtering is not desired then we want to ensure all
         // texels in the resampled image are copies of texels from
         // the original.
-        drawState->sampler(0)->reset();
         GrTextureParams params(SkShader::kClamp_TileMode, needsFiltering);
-        drawState->createTextureEffect(0, clampedTexture, params);
+        drawState->createTextureEffect(0, clampedTexture, GrMatrix::I(), params);
 
         static const GrVertexLayout layout =
                             GrDrawTarget::StageTexCoordVertexLayoutBit(0,0);
@@ -1348,8 +1346,7 @@
                     matrix.setTranslate(SK_Scalar1 *left, SK_Scalar1 *top);
                 }
                 matrix.postIDiv(src->width(), src->height());
-                drawState->sampler(0)->reset(matrix);
-                drawState->sampler(0)->setCustomStage(stage);
+                drawState->sampler(0)->setCustomStage(stage, matrix);
                 GrRect rect = GrRect::MakeWH(GrIntToScalar(width), GrIntToScalar(height));
                 fGpu->drawSimpleRect(rect, NULL);
                 // we want to read back from the scratch's origin
@@ -1449,8 +1446,7 @@
     drawState->setRenderTarget(dst);
     GrMatrix sampleM;
     sampleM.setIDiv(src->width(), src->height());
-    drawState->sampler(0)->reset(sampleM);
-    drawState->createTextureEffect(0, src);
+    drawState->createTextureEffect(0, src, sampleM);
     SkRect rect = SkRect::MakeXYWH(0, 0,
                                    SK_Scalar1 * src->width(),
                                    SK_Scalar1 * src->height());
@@ -1558,8 +1554,7 @@
     drawState->setRenderTarget(target);
 
     matrix.setIDiv(texture->width(), texture->height());
-    drawState->sampler(0)->reset(matrix);
-    drawState->sampler(0)->setCustomStage(stage);
+    drawState->sampler(0)->setCustomStage(stage, matrix);
 
     fGpu->drawSimpleRect(GrRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)), NULL);
 }
@@ -1813,14 +1808,15 @@
     paint.reset();
 
     for (int i = 1; i < scaleFactorX || i < scaleFactorY; i *= 2) {
-        paint.colorSampler(0)->matrix()->setIDiv(srcTexture->width(),
-                                                   srcTexture->height());
+        GrMatrix matrix;
+        matrix.setIDiv(srcTexture->width(), srcTexture->height());
         this->setRenderTarget(dstTexture->asRenderTarget());
         SkRect dstRect(srcRect);
         scale_rect(&dstRect, i < scaleFactorX ? 0.5f : 1.0f,
-                            i < scaleFactorY ? 0.5f : 1.0f);
+                             i < scaleFactorY ? 0.5f : 1.0f);
+
         paint.colorSampler(0)->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect,
-                                                           (srcTexture, true)))->unref();
+                                                         (srcTexture, true)), matrix)->unref();
         this->drawRectToRect(paint, dstRect, srcRect);
         srcRect = dstRect;
         srcTexture = dstTexture;
@@ -1873,12 +1869,13 @@
         clearRect = SkIRect::MakeXYWH(srcIRect.fRight, srcIRect.fTop,
                                       1, srcIRect.height());
         this->clear(&clearRect, 0x0);
+        GrMatrix matrix;
         // FIXME:  This should be mitchell, not bilinear.
-        paint.colorSampler(0)->matrix()->setIDiv(srcTexture->width(),
-                                                   srcTexture->height());
+        matrix.setIDiv(srcTexture->width(), srcTexture->height());
         this->setRenderTarget(dstTexture->asRenderTarget());
         paint.colorSampler(0)->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect,
-                                                           (srcTexture, true)))->unref();
+                                                         (srcTexture, true)),
+                                              matrix)->unref();
         SkRect dstRect(srcRect);
         scale_rect(&dstRect, (float) scaleFactorX, (float) scaleFactorY);
         this->drawRectToRect(paint, dstRect, srcRect);
diff --git a/src/gpu/GrDrawState.cpp b/src/gpu/GrDrawState.cpp
index da81a76..cc11f6c 100644
--- a/src/gpu/GrDrawState.cpp
+++ b/src/gpu/GrDrawState.cpp
@@ -54,7 +54,7 @@
         fDrawState->setViewMatrix(fViewMatrix);
         for (int s = 0; s < GrDrawState::kNumStages; ++s) {
             if (fRestoreMask & (1 << s)) {
-                *fDrawState->sampler(s)->matrix() = fSamplerMatrices[s];
+                fDrawState->sampler(s)->setMatrixDeprecated(fSamplerMatrices[s]);
             }
         }
     }
@@ -77,6 +77,7 @@
     for (int s = 0; s < GrDrawState::kNumStages; ++s) {
         if (!(explicitCoordStageMask & (1 << s)) && drawState->isStageEnabled(s)) {
             fRestoreMask |= (1 << s);
+            fSamplerMatrices[s] = drawState->sampler(s)->getMatrix();
             drawState->sampler(s)->preConcatMatrix(preconcatMatrix);
         }
     }
@@ -89,7 +90,7 @@
         fDrawState->setViewMatrix(fViewMatrix);
         for (int s = 0; s < GrDrawState::kNumStages; ++s) {
             if (fRestoreMask & (1 << s)) {
-                *fDrawState->sampler(s)->matrix() = fSamplerMatrices[s];
+                fDrawState->sampler(s)->setMatrixDeprecated(fSamplerMatrices[s]);
             }
         }
     }
diff --git a/src/gpu/GrDrawState.h b/src/gpu/GrDrawState.h
index 69f0aea..f3d5e37 100644
--- a/src/gpu/GrDrawState.h
+++ b/src/gpu/GrDrawState.h
@@ -42,8 +42,9 @@
      *
      * Stages 0 through GrPaint::kTotalStages-1 are reserved for setting up
      * the draw (i.e., textures and filter masks). Stages GrPaint::kTotalStages
-     * through kNumStages-1 are earmarked for use by GrTextContext and
-     * GrPathRenderer-derived classes.
+     * through kNumStages-2 are earmarked for use by GrTextContext and
+     * GrPathRenderer-derived classes. kNumStages-1 is earmarked for clipping
+     * by GrClipMaskManager.
      */
     enum {
         kNumStages = 5,
@@ -194,10 +195,17 @@
         this->sampler(stage)->setCustomStage(
             SkNEW_ARGS(GrSingleTextureEffect, (texture)))->unref();
     }
-    void createTextureEffect(int stage, GrTexture* texture, const GrTextureParams& params) {
+    void createTextureEffect(int stage, GrTexture* texture, const GrMatrix& matrix) {
         GrAssert(!this->getSampler(stage).getCustomStage());
-        this->sampler(stage)->setCustomStage(
-            SkNEW_ARGS(GrSingleTextureEffect, (texture, params)))->unref();
+        GrCustomStage* customStage = SkNEW_ARGS(GrSingleTextureEffect, (texture));
+        this->sampler(stage)->setCustomStage(customStage, matrix)->unref();
+    }
+    void createTextureEffect(int stage, GrTexture* texture,
+                             const GrMatrix& matrix,
+                             const GrTextureParams& params) {
+        GrAssert(!this->getSampler(stage).getCustomStage());
+        GrCustomStage* customStage = SkNEW_ARGS(GrSingleTextureEffect, (texture, params));
+        this->sampler(stage)->setCustomStage(customStage, matrix)->unref();
     }
 
 
diff --git a/src/gpu/GrTextContext.cpp b/src/gpu/GrTextContext.cpp
index c9944b9..59b9cb3 100644
--- a/src/gpu/GrTextContext.cpp
+++ b/src/gpu/GrTextContext.cpp
@@ -19,7 +19,6 @@
 #include "SkPath.h"
 
 enum {
-
     kGlyphMaskStage = GrPaint::kTotalStages,
 };
 
@@ -35,7 +34,7 @@
         GrAssert(GrIsALIGN4(fCurrVertex));
         GrAssert(fCurrTexture);
         GrTextureParams params(SkShader::kRepeat_TileMode, false);
-        drawState->createTextureEffect(kGlyphMaskStage, fCurrTexture, params);
+        drawState->createTextureEffect(kGlyphMaskStage, fCurrTexture, GrMatrix::I(), params);
 
         if (!GrPixelConfigIsAlphaOnly(fCurrTexture->config())) {
             if (kOne_GrBlendCoeff != fPaint.getSrcBlendCoeff() ||
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index a09b57f..02bfdbd 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -548,25 +548,14 @@
     }
 
     GrSamplerState* sampler = grPaint->colorSampler(kShaderTextureIdx);
-    GrCustomStage* stage = shader->asNewCustomStage(dev->context(), sampler);
-
-    if (NULL != stage) {
-        sampler->setCustomStage(stage)->unref();
-        SkMatrix localM;
-        if (shader->getLocalMatrix(&localM)) {
-            SkMatrix inverse;
-            if (localM.invert(&inverse)) {
-                sampler->matrix()->preConcat(inverse);
-            }
-        }
+    if (shader->asNewCustomStage(dev->context(), sampler)) {
         return true;
     }
 
     SkBitmap bitmap;
-    SkMatrix* matrix = sampler->matrix();
+    SkMatrix matrix;
     SkShader::TileMode tileModes[2];
-    SkShader::BitmapType bmptype = shader->asABitmap(&bitmap, matrix,
-                                                     tileModes);
+    SkShader::BitmapType bmptype = shader->asABitmap(&bitmap, &matrix, tileModes);
 
     if (SkShader::kNone_BitmapType == bmptype) {
         SkShader::GradientInfo info;
@@ -600,23 +589,21 @@
         return false;
     }
 
-    sampler->reset();
-    sampler->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect, (texture, params)))->unref();
-
-    // since our texture coords will be in local space, we wack the texture
+    // since our texture coords will be in local space, we whack the texture
     // matrix to map them back into 0...1 before we load it
     SkMatrix localM;
     if (shader->getLocalMatrix(&localM)) {
         SkMatrix inverse;
         if (localM.invert(&inverse)) {
-            matrix->preConcat(inverse);
+            matrix.preConcat(inverse);
         }
     }
     if (SkShader::kDefault_BitmapType == bmptype) {
         GrScalar sx = SkFloatToScalar(1.f / bitmap.width());
         GrScalar sy = SkFloatToScalar(1.f / bitmap.height());
-        matrix->postScale(sx, sy);
+        matrix.postScale(sx, sy);
     }
+    sampler->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect, (texture, params)), matrix)->unref();
 
     return true;
 }
@@ -876,13 +863,11 @@
         if (!isNormalBlur) {
             context->setIdentityMatrix();
             GrPaint paint;
-            paint.reset();
-            paint.colorSampler(0)->matrix()->setIDiv(pathTexture->width(),
-                                                     pathTexture->height());
+            GrMatrix matrix;
+            matrix.setIDiv(pathTexture->width(), pathTexture->height());
             // Blend pathTexture over blurTexture.
             context->setRenderTarget(blurTexture->asRenderTarget());
-            paint.colorSampler(0)->setCustomStage(SkNEW_ARGS
-                (GrSingleTextureEffect, (pathTexture)))->unref();
+            paint.colorSampler(0)->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect, (pathTexture)), matrix)->unref();
             if (SkMaskFilter::kInner_BlurType == blurType) {
                 // inner:  dst = dst * src
                 paint.setBlendFunc(kDC_GrBlendCoeff, kZero_GrBlendCoeff);
@@ -907,13 +892,13 @@
     static const int MASK_IDX = GrPaint::kMaxCoverageStages - 1;
     // we assume the last mask index is available for use
     GrAssert(!grp->isCoverageStageEnabled(MASK_IDX));
+
+    GrMatrix matrix;
+    matrix.setTranslate(-finalRect.fLeft, -finalRect.fTop);
+    matrix.postIDiv(blurTexture->width(), blurTexture->height());
+
     grp->coverageSampler(MASK_IDX)->reset();
-    grp->coverageSampler(MASK_IDX)->setCustomStage(
-        SkNEW_ARGS(GrSingleTextureEffect, (blurTexture)))->unref();
-    grp->coverageSampler(MASK_IDX)->matrix()->setTranslate(-finalRect.fLeft,
-                                                       -finalRect.fTop);
-    grp->coverageSampler(MASK_IDX)->matrix()->postIDiv(blurTexture->width(),
-                                                   blurTexture->height());
+    grp->coverageSampler(MASK_IDX)->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect, (blurTexture)), matrix)->unref();
     context->drawRect(*grp, finalRect);
     return true;
 }
@@ -964,19 +949,18 @@
     static const int MASK_IDX = GrPaint::kMaxCoverageStages - 1;
     // we assume the last mask index is available for use
     GrAssert(!grp->isCoverageStageEnabled(MASK_IDX));
-    grp->coverageSampler(MASK_IDX)->reset();
-    grp->coverageSampler(MASK_IDX)->setCustomStage(
-        SkNEW_ARGS(GrSingleTextureEffect, (texture)))->unref();
+
+    GrMatrix m;
+    m.setTranslate(-dstM.fBounds.fLeft*SK_Scalar1, -dstM.fBounds.fTop*SK_Scalar1);
+    m.postIDiv(texture->width(), texture->height());
+
+    grp->coverageSampler(MASK_IDX)->setCustomStage(SkNEW_ARGS(GrSingleTextureEffect, (texture)), m)->unref();
     GrRect d;
     d.setLTRB(GrIntToScalar(dstM.fBounds.fLeft),
               GrIntToScalar(dstM.fBounds.fTop),
               GrIntToScalar(dstM.fBounds.fRight),
               GrIntToScalar(dstM.fBounds.fBottom));
 
-    GrMatrix* m = grp->coverageSampler(MASK_IDX)->matrix();
-    m->setTranslate(-dstM.fBounds.fLeft*SK_Scalar1,
-                         -dstM.fBounds.fTop*SK_Scalar1);
-    m->postIDiv(texture->width(), texture->height());
     context->drawRect(*grp, d);
     return true;
 }
@@ -1385,8 +1369,6 @@
 
     GrSamplerState* sampler = grPaint->colorSampler(kBitmapTextureIdx);
 
-    sampler->matrix()->reset();
-
     GrTexture* texture;
     SkAutoCachedTexture act(this, bitmap, &params, &texture);
     if (NULL == texture) {
@@ -1469,8 +1451,7 @@
     GrMatrix sampleM;
     sampleM.setIDiv(srcTexture->width(), srcTexture->height());
     GrPaint paint;
-    paint.colorSampler(0)->reset(sampleM);
-    paint.colorSampler(0)->setCustomStage(stage);
+    paint.colorSampler(0)->setCustomStage(stage, sampleM);
     context->drawRect(paint, rect);
 }