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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTypes.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrContextFactory.h"
#include "GrContextPriv.h"
#include "GrSurfaceContext.h"
#include "GrSurfaceProxy.h"
#include "GrTextureProxy.h"
#include "GrTypes.h"
#include "ProxyUtils.h"
#include "SkImageInfo.h"
#include "SkPoint.h"
#include "SkRect.h"
#include "SkRefCnt.h"
#include "SkTemplates.h"
#include "SkUtils.h"
#include "Test.h"
#include <utility>
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CopySurface, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
static const int kW = 10;
static const int kH = 10;
static const size_t kRowBytes = sizeof(uint32_t) * kW;
SkAutoTMalloc<uint32_t> srcPixels(kW * kH);
for (int i = 0; i < kW * kH; ++i) {
srcPixels.get()[i] = i;
}
SkAutoTMalloc<uint32_t> dstPixels(kW * kH);
for (int i = 0; i < kW * kH; ++i) {
dstPixels.get()[i] = ~i;
}
static const SkIRect kSrcRects[] {
{ 0, 0, kW , kH },
{-1, -1, kW+1, kH+1},
{ 1, 1, kW-1, kH-1},
{ 5, 5, 6 , 6 },
};
static const SkIPoint kDstPoints[] {
{ 0 , 0 },
{ 1 , 1 },
{ kW/2, kH/4},
{ kW-1, kH-1},
{ kW , kH },
{ kW+1, kH+2},
{-1 , -1 },
};
const SkImageInfo ii = SkImageInfo::Make(kW, kH, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
SkAutoTMalloc<uint32_t> read(kW * kH);
for (auto sOrigin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
for (auto dOrigin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
for (auto sRT : {true, false}) {
for (auto dRT : {true, false}) {
for (auto srcRect : kSrcRects) {
for (auto dstPoint : kDstPoints) {
auto src = sk_gpu_test::MakeTextureProxyFromData(
context, sRT, kW, kH, ii.colorType(), sOrigin, srcPixels.get(),
kRowBytes);
auto dst = sk_gpu_test::MakeTextureProxyFromData(
context, dRT, kW, kH, ii.colorType(), dOrigin, dstPixels.get(),
kRowBytes);
if (!src || !dst) {
ERRORF(reporter,
"Could not create surfaces for copy surface test.");
continue;
}
sk_sp<GrSurfaceContext> dstContext =
context->contextPriv().makeWrappedSurfaceContext(std::move(dst));
bool result = dstContext->copy(src.get(), srcRect, dstPoint);
bool expectedResult = true;
SkIPoint dstOffset = { dstPoint.fX - srcRect.fLeft,
dstPoint.fY - srcRect.fTop };
SkIRect copiedDstRect = SkIRect::MakeXYWH(dstPoint.fX,
dstPoint.fY,
srcRect.width(),
srcRect.height());
SkIRect copiedSrcRect;
if (!copiedSrcRect.intersect(srcRect, SkIRect::MakeWH(kW, kH))) {
expectedResult = false;
} else {
// If the src rect was clipped, apply same clipping to each side of
// copied dst rect.
copiedDstRect.fLeft += copiedSrcRect.fLeft - srcRect.fLeft;
copiedDstRect.fTop += copiedSrcRect.fTop - srcRect.fTop;
copiedDstRect.fRight -= copiedSrcRect.fRight - srcRect.fRight;
copiedDstRect.fBottom -= copiedSrcRect.fBottom - srcRect.fBottom;
}
if (copiedDstRect.isEmpty() ||
!copiedDstRect.intersect(SkIRect::MakeWH(kW, kH))) {
expectedResult = false;
}
// To make the copied src rect correct we would apply any dst clipping
// back to the src rect, but we don't use it again so don't bother.
if (expectedResult != result) {
ERRORF(reporter, "Expected return value %d from copySurface, got "
"%d.", expectedResult, result);
continue;
}
if (!expectedResult || !result) {
continue;
}
sk_memset32(read.get(), 0, kW * kH);
if (!dstContext->readPixels(ii, read.get(), kRowBytes, 0, 0)) {
ERRORF(reporter, "Error calling readPixels");
continue;
}
bool abort = false;
// Validate that pixels inside copiedDstRect received the correct value
// from src and that those outside were not modified.
for (int y = 0; y < kH && !abort; ++y) {
for (int x = 0; x < kW; ++x) {
uint32_t r = read.get()[y * kW + x];
if (copiedDstRect.contains(x, y)) {
int sx = x - dstOffset.fX;
int sy = y - dstOffset.fY;
uint32_t s = srcPixels.get()[sy * kW + sx];
if (s != r) {
ERRORF(reporter, "Expected dst %d,%d to contain "
"0x%08x copied from src location %d,%d. Got "
"0x%08x", x, y, s, sx, sy, r);
abort = true;
break;
}
} else {
uint32_t d = dstPixels.get()[y * kW + x];
if (d != r) {
ERRORF(reporter, "Expected dst %d,%d to be unmodified ("
"0x%08x). Got 0x%08x", x, y, d, r);
abort = true;
break;
}
}
}
}
}
}
}
}
}
}
}
#endif
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