Added --deepColor option to SampleApp, triggers creation of a ten-bit/channel buffer on Windows.

src/gpu/GrContext.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrContext.h"
 #include "GrContextOptions.h"
 #include "GrDrawingManager.h"
 #include "GrDrawContext.h"
 #include "GrLayerCache.h"
 #include "GrResourceCache.h"
 #include "GrResourceProvider.h"
 #include "GrSoftwarePathRenderer.h"
 #include "GrSurfacePriv.h"
 
 #include "SkConfig8888.h"
 #include "SkGrPriv.h"
 
 #include "batches/GrCopySurfaceBatch.h"
 #include "effects/GrConfigConversionEffect.h"
+#include "effects/GrGammaEffect.h"
 #include "text/GrTextBlobCache.h"
 
 #define ASSERT_OWNED_RESOURCE(R) SkASSERT(!(R) || (R)->getContext() == this)
 #define ASSERT_SINGLE_OWNER \
     SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(&fSingleOwner);)
 #define RETURN_IF_ABANDONED if (fDrawingManager->abandoned()) { return; }
 #define RETURN_FALSE_IF_ABANDONED if (fDrawingManager->abandoned()) { return false; }
 #define RETURN_NULL_IF_ABANDONED if (fDrawingManager->abandoned()) { return nullptr; }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 489 matching lines @@
         srcPI.fColorType = dstPI.fColorType;
         srcPI.fAlphaType = kPremul_SkAlphaType;
         srcPI.fPixels = buffer;
         srcPI.fRowBytes = rowBytes;
 
         return srcPI.convertPixelsTo(&dstPI, width, height);
     }
     return true;
 }
 
+bool GrContext::applyGamma(GrRenderTarget* dst, GrTexture* src, SkScalar gamma){
+    ASSERT_SINGLE_OWNER
+    RETURN_FALSE_IF_ABANDONED
+    ASSERT_OWNED_RESOURCE(dst);
+    ASSERT_OWNED_RESOURCE(src);
+    GR_AUDIT_TRAIL_AUTO_FRAME(&fAuditTrail, "GrContext::applyGamma");
+
+    // Dimensions must match exactly.
+    if (dst->width() != src->width() || dst->height() != src->height()) {
+        return false;
+    }
+
+    SkSurfaceProps props(SkSurfaceProps::kGammaCorrect_Flag,
+                         SkSurfaceProps::kLegacyFontHost_InitType);
+    sk_sp<GrDrawContext> drawContext(this->drawContext(sk_ref_sp(dst), &props));
+    if (!drawContext) {
+        return false;
+    }
+
+    GrPaint paint;
+    if (SkScalarNearlyEqual(gamma, 1.0f)) {
+        paint.addColorTextureProcessor(src, GrCoordTransform::MakeDivByTextureWHMatrix(src));
+    } else {
+        SkAutoTUnref<const GrFragmentProcessor> fp;
+        fp.reset(GrGammaEffect::Create(src, gamma));
+        paint.addColorFragmentProcessor(fp);
+    }
+    paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
+    paint.setGammaCorrect(true);
+
+    SkRect rect;
+    src->getBoundsRect(&rect);
+    drawContext->drawRect(GrClip::WideOpen(), paint, SkMatrix::I(), rect);
+
+    this->flushSurfaceWrites(dst);
+    return true;
+}
+
 void GrContext::prepareSurfaceForExternalIO(GrSurface* surface) {
     ASSERT_SINGLE_OWNER
     RETURN_IF_ABANDONED
     SkASSERT(surface);
     ASSERT_OWNED_RESOURCE(surface);
     if (surface->surfacePriv().hasPendingIO()) {
         this->flush();
     }
     GrRenderTarget* rt = surface->asRenderTarget();
     if (fGpu && rt) {
@@ skipping 184 matching lines @@
     ASSERT_SINGLE_OWNER
     fResourceCache->setLimits(maxTextures, maxTextureBytes);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 void GrContext::dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const {
     ASSERT_SINGLE_OWNER
     fResourceCache->dumpMemoryStatistics(traceMemoryDump);
 }