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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 "Test.h"
#if SK_SUPPORT_GPU
#include "GrClip.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrRenderTargetContext.h"
#include "GrResourceProvider.h"
#include "GrTexture.h"
#include "effects/GrSimpleTextureEffect.h"
template <typename I>
static SK_WHEN(std::is_integral<I>::value && 4 == sizeof(I), void)
check_pixels(skiatest::Reporter* reporter, int w, int h, const I exepctedData[],
const I actualData[], const char* testName) {
for (int j = 0; j < h; ++j) {
for (int i = 0; i < w; ++i) {
I expected = exepctedData[j * w + i];
I actual = actualData[j * w + i];
if (expected != actual) {
ERRORF(reporter, "[%s] Expected 0x08%x, got 0x%08x at %d, %d.", testName, expected,
actual, i, j);
return;
}
}
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(IntTexture, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
if (!context->caps()->isConfigTexturable(kRGBA_8888_sint_GrPixelConfig)) {
return;
}
static const int kS = UINT8_MAX + 1;
static const size_t kRowBytes = kS * sizeof(int32_t);
GrSurfaceDesc desc;
desc.fOrigin = kTopLeft_GrSurfaceOrigin;
desc.fConfig = kRGBA_8888_sint_GrPixelConfig;
desc.fWidth = kS;
desc.fHeight = kS;
std::unique_ptr<int32_t[]> testData(new int32_t[kS * kS]);
for (int j = 0; j < kS; ++j) {
for (int i = 0; i < kS; ++i) {
uint32_t r = i - INT8_MIN;
uint32_t g = j - INT8_MIN;
uint32_t b = INT8_MAX - r;
uint32_t a = INT8_MAX - g;
testData.get()[j * kS + i] = (a << 24) | (b << 16) | (g << 8) | r;
}
}
// Test that attempting to create a integer texture with multiple MIP levels fails.
{
GrMipLevel levels[2];
levels[0].fPixels = testData.get();
levels[0].fRowBytes = kRowBytes;
levels[1].fPixels = testData.get();
levels[1].fRowBytes = (kS / 2) * sizeof(int32_t);
sk_sp<GrTextureProxy> temp(GrSurfaceProxy::MakeDeferredMipMap(context->resourceProvider(),
desc,
SkBudgeted::kYes,
levels, 2));
REPORTER_ASSERT(reporter, !temp);
}
// Test that we can create an integer texture.
sk_sp<GrTextureProxy> proxy = GrSurfaceProxy::MakeDeferred(context->resourceProvider(),
desc, SkBudgeted::kYes,
testData.get(),
kRowBytes);
REPORTER_ASSERT(reporter, proxy);
if (!proxy) {
return;
}
sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(
std::move(proxy), nullptr);
if (!sContext) {
return;
}
std::unique_ptr<int32_t[]> readData(new int32_t[kS * kS]);
// Test that reading to a non-integer config fails.
{
bool success = context->contextPriv().readSurfacePixels(sContext.get(),
0, 0, kS, kS,
kRGBA_8888_GrPixelConfig,
nullptr, readData.get());
REPORTER_ASSERT(reporter, !success);
}
{
std::unique_ptr<uint16_t[]> halfData(new uint16_t[4 * kS * kS]);
bool success = context->contextPriv().readSurfacePixels(sContext.get(),
0, 0, kS, kS,
kRGBA_half_GrPixelConfig,
nullptr, halfData.get());
REPORTER_ASSERT(reporter, !success);
}
{
// Can read back as ints. (ES only requires being able to read back into 32bit ints which
// we don't support. Right now this test is counting on GR_RGBA_INTEGER/GL_BYTE being the
// implementation-dependent second format).
sk_bzero(readData.get(), sizeof(int32_t) * kS * kS);
bool success = context->contextPriv().readSurfacePixels(sContext.get(),
0, 0, kS, kS,
kRGBA_8888_sint_GrPixelConfig,
nullptr, readData.get());
REPORTER_ASSERT(reporter, success);
if (success) {
check_pixels(reporter, kS, kS, testData.get(), readData.get(), "readPixels");
}
}
{
// readPixels should fail if we attempt to use the unpremul flag with an integer texture.
bool success = context->contextPriv().readSurfacePixels(
sContext.get(),
0, 0, kS, kS,
kRGBA_8888_sint_GrPixelConfig,
nullptr, readData.get(), 0,
GrContextPriv::kUnpremul_PixelOpsFlag);
REPORTER_ASSERT(reporter, !success);
}
// Test that copying from one integer texture to another succeeds.
{
sk_sp<GrSurfaceContext> dstContext(GrSurfaceProxy::TestCopy(context, desc,
sContext->asSurfaceProxy()));
REPORTER_ASSERT(reporter, dstContext);
if (!dstContext || !dstContext->asTextureProxy()) {
return;
}
sk_bzero(readData.get(), sizeof(int32_t) * kS * kS);
bool success = context->contextPriv().readSurfacePixels(dstContext.get(), 0, 0, kS, kS,
kRGBA_8888_sint_GrPixelConfig,
nullptr, readData.get());
REPORTER_ASSERT(reporter, success);
if (success) {
check_pixels(reporter, kS, kS, testData.get(), readData.get(), "copyIntegerToInteger");
}
}
// Test that copying to a non-integer (8888) texture fails.
{
GrSurfaceDesc nonIntDesc = desc;
nonIntDesc.fConfig = kRGBA_8888_GrPixelConfig;
sk_sp<GrSurfaceContext> dstContext(GrSurfaceProxy::TestCopy(context, nonIntDesc,
sContext->asSurfaceProxy()));
REPORTER_ASSERT(reporter, !dstContext);
}
// Test that copying to a non-integer (RGBA_half) texture fails.
if (context->caps()->isConfigTexturable(kRGBA_half_GrPixelConfig)) {
GrSurfaceDesc nonIntDesc = desc;
nonIntDesc.fConfig = kRGBA_half_GrPixelConfig;
sk_sp<GrSurfaceContext> dstContext(GrSurfaceProxy::TestCopy(context, nonIntDesc,
sContext->asSurfaceProxy()));
REPORTER_ASSERT(reporter, !dstContext);
}
// We overwrite the top left quarter of the texture with the bottom right quarter of the
// original data.
const void* bottomRightQuarter = testData.get() + kS / 2 * kS + kS / 2;
{
// Can't write pixels from a non-int config.
bool success = context->contextPriv().writeSurfacePixels(sContext.get(),
0, 0, kS/2, kS/2,
kRGBA_8888_GrPixelConfig, nullptr,
bottomRightQuarter, kRowBytes);
REPORTER_ASSERT(reporter, !success);
}
{
// Can't use unpremul flag.
bool success = context->contextPriv().writeSurfacePixels(
sContext.get(),
0, 0, kS/2, kS/2,
kRGBA_8888_sint_GrPixelConfig,
nullptr,
bottomRightQuarter, kRowBytes,
GrContextPriv::kUnpremul_PixelOpsFlag);
REPORTER_ASSERT(reporter, !success);
}
{
bool success = context->contextPriv().writeSurfacePixels(sContext.get(),
0, 0, kS/2, kS/2,
kRGBA_8888_sint_GrPixelConfig,
nullptr,
bottomRightQuarter, kRowBytes);
REPORTER_ASSERT(reporter, success);
if (!success) {
return;
}
sk_bzero(readData.get(), sizeof(int32_t) * kS * kS);
success = context->contextPriv().readSurfacePixels(sContext.get(),
0, 0, kS, kS,
kRGBA_8888_sint_GrPixelConfig,
nullptr, readData.get(), 0);
REPORTER_ASSERT(reporter, success);
if (!success) {
return;
}
std::unique_ptr<int32_t[]> overwrittenTestData(new int32_t[kS * kS]);
memcpy(overwrittenTestData.get(), testData.get(), sizeof(int32_t) * kS * kS);
char* dst = (char*)overwrittenTestData.get();
char* src = (char*)(testData.get() + kS/2 * kS + kS/2);
for (int i = 0; i < kS/2; ++i) {
memcpy(dst, src, sizeof(int32_t) * kS/2);
dst += kRowBytes;
src += kRowBytes;
}
check_pixels(reporter, kS, kS, overwrittenTestData.get(), readData.get(), "overwrite");
}
// Test drawing from the integer texture to a fixed point texture. To avoid any premul issues
// we init the int texture with 0s and 1s and make alpha always be 1. We expect that 1s turn
// into 0xffs and zeros stay zero.
std::unique_ptr<uint32_t[]> expectedData(new uint32_t[kS * kS]);
std::unique_ptr<uint32_t[]> actualData(new uint32_t[kS * kS]);
for (int i = 0; i < kS*kS; ++i) {
int32_t a = 0x1;
int32_t b = ((i & 0x1) ? 1 : 0);
int32_t g = ((i & 0x1) ? 0 : 1);
int32_t r = ((i & 0x2) ? 1 : 0);
testData.get()[i] = (a << 24) | (b << 16) | (g << 8) | r;
expectedData.get()[i] = ((0xFF * a) << 24) | ((0xFF * b) << 16) |
((0xFF * g) << 8) | (0xFF * r);
}
context->contextPriv().writeSurfacePixels(sContext.get(),
0, 0, kS, kS,
kRGBA_8888_sint_GrPixelConfig, nullptr,
testData.get(), 0);
sk_sp<GrRenderTargetContext> rtContext = context->makeDeferredRenderTargetContext(
SkBackingFit::kExact, kS, kS, kRGBA_8888_GrPixelConfig, nullptr);
struct {
GrSamplerState::Filter fMode;
const char* fName;
} kNamedFilters[] = {{GrSamplerState::Filter::kNearest, "filter-none"},
{GrSamplerState::Filter::kBilerp, "filter-bilerp"},
{GrSamplerState::Filter::kMipMap, "filter-mipmap"}};
for (auto filter : kNamedFilters) {
auto fp = GrSimpleTextureEffect::Make(sContext->asTextureProxyRef(), SkMatrix::I(),
filter.fMode);
REPORTER_ASSERT(reporter, fp);
if (!fp) {
return;
}
rtContext->clear(nullptr, 0xDDAABBCC, true);
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorFragmentProcessor(std::move(fp));
rtContext->drawPaint(GrNoClip(), std::move(paint), SkMatrix::I());
SkImageInfo readInfo = SkImageInfo::Make(kS, kS, kRGBA_8888_SkColorType,
kPremul_SkAlphaType);
rtContext->readPixels(readInfo, actualData.get(), 0, 0, 0);
check_pixels(reporter, kS, kS, expectedData.get(), actualData.get(), filter.fName);
}
{
// No rendering to integer textures.
GrSurfaceDesc intRTDesc = desc;
intRTDesc.fFlags = kRenderTarget_GrSurfaceFlag;
sk_sp<GrTexture> temp(context->resourceProvider()->createTexture(intRTDesc,
SkBudgeted::kYes));
REPORTER_ASSERT(reporter, !temp);
}
}
#endif
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