Refugee from Dead Machine 4: MDB Monster

tests/SRGBReadWritePixelsTest.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 #if SK_SUPPORT_GPU
 #include "SkCanvas.h"
 
 #include "SkSurface.h"
 #include "GrContextFactory.h"
 #include "GrCaps.h"
+#include "GrDrawContext.h"
 
 // using anonymous namespace because these functions are used as template params.
 namespace {
 /** convert 0..1 srgb value to 0..1 linear */
 float srgb_to_linear(float srgb) {
     if (srgb <= 0.04045f) {
         return srgb / 12.92f;
     } else {
         return powf((srgb + 0.055f) / 1.055f, 2.4f);
     }
@@ skipping 105 matching lines @@
 
             if (!checker(orig, read, error)) {
                 ERRORF(reporter, "Expected 0x%08x, read back as 0x%08x in %s at %d, %d).",
                        orig, read, subtestName, i, j);
                 return;
             }
         }
     }
 }
 
+#include "GrDrawTarget.h"
+
 // TODO: Add tests for copySurface between srgb/linear textures. Add tests for unpremul/premul
 // conversion during read/write along with srgb/linear conversions.
 DEF_GPUTEST(SRGBReadWritePixels, reporter, factory) {
 #if defined(GOOGLE3)
     // Stack frame size is limited in GOOGLE3.
     static const int kW = 63;
     static const int kH = 63;
 #else
     static const int kW = 255;
     static const int kH = 255;
@@ skipping 18 matching lines @@
         desc.fWidth = kW;
         desc.fHeight = kH;
         desc.fConfig = kSRGBA_8888_GrPixelConfig;
         if (context->caps()->isConfigRenderable(desc.fConfig, false) &&
             context->caps()->isConfigTexturable(desc.fConfig)) {
             SkAutoTUnref<GrTexture> tex(context->textureProvider()->createTexture(desc, false));
             if (!tex) {
                 ERRORF(reporter, "Could not create SRGBA texture.");
                 continue;
             }
+            SkAutoTUnref<GrDrawContext> dc(context->drawContext(tex->asRenderTarget()));
+            if (!dc) {
+                ERRORF(reporter, "Could not create SRGBA texture.");
+                continue;
+            }
 
             float error = context->caps()->shaderCaps()->floatPrecisionVaries() ? 1.2f  : 0.5f;
 
             // Write srgba data and read as srgba and then as rgba
-            if (tex->writePixels(0, 0, kW, kH, kSRGBA_8888_GrPixelConfig, origData)) {
+            if (tex->writePixels(dc, 0, 0, kW, kH, kSRGBA_8888_GrPixelConfig, origData)) {
                 // For the all-srgba case, we allow a small error only for devices that have
                 // precision variation because the srgba data gets converted to linear and back in
                 // the shader.
                 float smallError = context->caps()->shaderCaps()->floatPrecisionVaries() ? 1.f :
                                                                                            0.0f;
                 read_and_check_pixels(reporter, tex, origData, kSRGBA_8888_GrPixelConfig,
                                       check_srgb_to_linear_to_srgb_conversion, smallError,
                                       "write/read srgba to srgba texture");
                 read_and_check_pixels(reporter, tex, origData, kRGBA_8888_GrPixelConfig,
                                       check_srgb_to_linear_conversion, error,
                                       "write srgba/read rgba with srgba texture");
             } else {
                 ERRORF(reporter, "Could not write srgba data to srgba texture.");
             }
 
             // Now verify that we can write linear data
-            if (tex->writePixels(0, 0, kW, kH, kRGBA_8888_GrPixelConfig, origData)) {
+            if (tex->writePixels(dc, 0, 0, kW, kH, kRGBA_8888_GrPixelConfig, origData)) {
                 // We allow more error on GPUs with lower precision shader variables.
                 read_and_check_pixels(reporter, tex, origData, kSRGBA_8888_GrPixelConfig,
                                       check_linear_to_srgb_conversion, error,
                                       "write rgba/read srgba with srgba texture");
                 read_and_check_pixels(reporter, tex, origData, kRGBA_8888_GrPixelConfig,
                                       check_linear_to_srgb_to_linear_conversion, error,
                                       "write/read rgba with srgba texture");
             } else {
                 ERRORF(reporter, "Could not write rgba data to srgba texture.");
             }
 
             desc.fConfig = kRGBA_8888_GrPixelConfig;
             tex.reset(context->textureProvider()->createTexture(desc, false));
             if (!tex) {
                 ERRORF(reporter, "Could not create RGBA texture.");
                 continue;
             }
+            dc.reset(context->drawContext(tex->asRenderTarget()));
+            if (!dc) {
+                ERRORF(reporter, "Could not create SRGBA texture.");
+                continue;
+            }
 
             // Write srgba data to a rgba texture and read back as srgba and rgba
-            if (tex->writePixels(0, 0, kW, kH, kSRGBA_8888_GrPixelConfig, origData)) {
+            if (tex->writePixels(dc, 0, 0, kW, kH, kSRGBA_8888_GrPixelConfig, origData)) {
                read_and_check_pixels(reporter, tex, origData, kSRGBA_8888_GrPixelConfig,
                                       check_srgb_to_linear_to_srgb_conversion, error,
                                       "write/read srgba to rgba texture");
                read_and_check_pixels(reporter, tex, origData, kRGBA_8888_GrPixelConfig,
                                      check_srgb_to_linear_conversion, error,
                                      "write srgba/read rgba to rgba texture");
             } else {
                 ERRORF(reporter, "Could not write srgba data to rgba texture.");
             }
 
             // Write rgba data to a rgba texture and read back as srgba
-            if (tex->writePixels(0, 0, kW, kH, kRGBA_8888_GrPixelConfig, origData)) {
+            if (tex->writePixels(dc, 0, 0, kW, kH, kRGBA_8888_GrPixelConfig, origData)) {
                 read_and_check_pixels(reporter, tex, origData, kSRGBA_8888_GrPixelConfig,
                                       check_linear_to_srgb_conversion, 1.2f,
                                       "write rgba/read srgba to rgba texture");
             } else {
                 ERRORF(reporter, "Could not write rgba data to rgba texture.");
             }
 }
     }
 }
 #endif