// This tests that GrTextureStripAtlas flushes pending IO on the texture it acquires.
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrTextureStripAtlasFlush, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
GrSurfaceDesc desc;
desc.fWidth = 32;
desc.fHeight = 32;
desc.fConfig = kRGBA_8888_GrPixelConfig;
GrTexture* texture = context->textureProvider()->createTexture(desc, SkBudgeted::kYes,
nullptr, 0);
GrSurfaceDesc targetDesc = desc;
targetDesc.fFlags = kRenderTarget_GrSurfaceFlag;
GrTexture* target = context->textureProvider()->createTexture(targetDesc, SkBudgeted::kYes,
nullptr, 0);
SkAutoTMalloc<uint32_t> pixels(desc.fWidth * desc.fHeight);
memset(pixels.get(), 0xFF, sizeof(uint32_t) * desc.fWidth * desc.fHeight);
texture->writePixels(0, 0, desc.fWidth, desc.fHeight, kRGBA_8888_GrPixelConfig, pixels.get());
// Add a pending read to the texture, and then make it available for reuse.
context->copySurface(target, texture);
texture->unref();
// Create an atlas with parameters that allow it to reuse the texture.
GrTextureStripAtlas::Desc atlasDesc;
atlasDesc.fContext = context;
atlasDesc.fConfig = desc.fConfig;
atlasDesc.fWidth = desc.fWidth;
atlasDesc.fHeight = desc.fHeight;
atlasDesc.fRowHeight = 1;
GrTextureStripAtlas* atlas = GrTextureStripAtlas::GetAtlas(atlasDesc);
// Write to the atlas' texture.
SkImageInfo info = SkImageInfo::MakeN32(desc.fWidth, desc.fHeight, kPremul_SkAlphaType);
size_t rowBytes = desc.fWidth * GrBytesPerPixel(desc.fConfig);
SkBitmap bitmap;
bitmap.allocPixels(info, rowBytes);
memset(bitmap.getPixels(), 1, rowBytes * desc.fHeight);
int row = atlas->lockRow(bitmap);
if (!context->caps()->preferVRAMUseOverFlushes())
REPORTER_ASSERT(reporter, texture == atlas->getTexture());
// The atlas' use of its texture shouldn't change which pixels got copied to the target.
SkAutoTMalloc<uint32_t> actualPixels(desc.fWidth * desc.fHeight);
bool success = target->readPixels(0, 0, desc.fWidth, desc.fHeight, kRGBA_8888_GrPixelConfig,
actualPixels.get());
REPORTER_ASSERT(reporter, success);
REPORTER_ASSERT(reporter,
!memcmp(pixels.get(), actualPixels.get(),
sizeof(uint32_t) * desc.fWidth * desc.fHeight));
target->unref();
atlas->unlockRow(row);
}
virtual void onDraw(SkCanvas* canvas) {
SkDevice* device = canvas->getDevice();
GrRenderTarget* target = (GrRenderTarget*) device->accessRenderTarget();
GrContext* ctx = GetGr();
if (ctx && target) {
SkPMColor gTextureData[(2 * S) * (2 * S)];
static const int stride = 2 * S;
static const SkPMColor gray = SkPackARGB32(0x40, 0x40, 0x40, 0x40);
static const SkPMColor white = SkPackARGB32(0xff, 0xff, 0xff, 0xff);
static const SkPMColor red = SkPackARGB32(0x80, 0x80, 0x00, 0x00);
static const SkPMColor blue = SkPackARGB32(0x80, 0x00, 0x00, 0x80);
static const SkPMColor green = SkPackARGB32(0x80, 0x00, 0x80, 0x00);
static const SkPMColor black = SkPackARGB32(0x00, 0x00, 0x00, 0x00);
for (int i = 0; i < 2; ++i) {
int offset = 0;
// fill upper-left
for (int y = 0; y < S; ++y) {
for (int x = 0; x < S; ++x) {
gTextureData[offset + y * stride + x] = gray;
}
}
// fill upper-right
offset = S;
for (int y = 0; y < S; ++y) {
for (int x = 0; x < S; ++x) {
gTextureData[offset + y * stride + x] = white;
}
}
// fill lower left
offset = S * stride;
for (int y = 0; y < S; ++y) {
for (int x = 0; x < S; ++x) {
gTextureData[offset + y * stride + x] = black;
}
}
// fill lower right
offset = S * stride + S;
for (int y = 0; y < S; ++y) {
for (int x = 0; x < S; ++x) {
gTextureData[offset + y * stride + x] = gray;
}
}
GrTextureDesc desc;
desc.fAALevel = kNone_GrAALevel;
// use RT flag bit because in GL it makes the texture be bottom-up
desc.fFlags = i ? kRenderTarget_GrTextureFlagBit :
kNone_GrTextureFlags;
desc.fConfig = kSkia8888_PM_GrPixelConfig;
desc.fWidth = 2 * S;
desc.fHeight = 2 * S;
GrTexture* texture =
ctx->createUncachedTexture(desc, gTextureData, 0);
if (!texture) {
return;
}
GrAutoUnref au(texture);
ctx->setClip(GrRect::MakeWH(2*S, 2*S));
ctx->setRenderTarget(target);
GrPaint paint;
paint.reset();
paint.fColor = 0xffffffff;
paint.fSrcBlendCoeff = kOne_BlendCoeff;
paint.fDstBlendCoeff = kISA_BlendCoeff;
GrMatrix vm;
if (i) {
vm.setRotate(90 * SK_Scalar1,
S * SK_Scalar1,
S * SK_Scalar1);
} else {
vm.reset();
}
ctx->setMatrix(vm);
GrMatrix tm;
tm = vm;
tm.postIDiv(2*S, 2*S);
paint.textureSampler(0)->setMatrix(tm);
paint.setTexture(0, texture);
ctx->drawRect(paint, GrRect::MakeWH(2*S, 2*S));
// now update the lower right of the texture in first pass
// or upper right in second pass
offset = 0;
for (int y = 0; y < S; ++y) {
for (int x = 0; x < S; ++x) {
gTextureData[offset + y * stride + x] =
((x + y) % 2) ? (i ? green : red) : blue;
}
}
texture->writePixels(S, (i ? 0 : S), S, S,
texture->config(), gTextureData,
4 * stride);
ctx->drawRect(paint, GrRect::MakeWH(2*S, 2*S));
}
}
}
static GrTexture* sk_gr_create_bitmap_texture(GrContext* ctx,
bool cache,
const GrTextureParams* params,
const SkBitmap& origBitmap) {
SkAutoLockPixels alp(origBitmap);
if (!origBitmap.readyToDraw()) {
return NULL;
}
SkBitmap tmpBitmap;
const SkBitmap* bitmap = &origBitmap;
GrTextureDesc desc;
generate_bitmap_texture_desc(*bitmap, &desc);
if (SkBitmap::kIndex8_Config == bitmap->config()) {
// build_compressed_data doesn't do npot->pot expansion
// and paletted textures can't be sub-updated
if (ctx->supportsIndex8PixelConfig(params,
bitmap->width(), bitmap->height())) {
size_t imagesize = bitmap->width() * bitmap->height() +
kGrColorTableSize;
SkAutoMalloc storage(imagesize);
build_compressed_data(storage.get(), origBitmap);
// our compressed data will be trimmed, so pass width() for its
// "rowBytes", since they are the same now.
if (cache) {
GrCacheID cacheID;
generate_bitmap_cache_id(origBitmap, &cacheID);
return ctx->createTexture(params, desc, cacheID, storage.get(), bitmap->width());
} else {
GrTexture* result = ctx->lockAndRefScratchTexture(desc,
GrContext::kExact_ScratchTexMatch);
result->writePixels(0, 0, bitmap->width(),
bitmap->height(), desc.fConfig,
storage.get());
return result;
}
} else {
origBitmap.copyTo(&tmpBitmap, SkBitmap::kARGB_8888_Config);
// now bitmap points to our temp, which has been promoted to 32bits
bitmap = &tmpBitmap;
desc.fConfig = SkBitmapConfig2GrPixelConfig(bitmap->config());
}
}
if (cache) {
// This texture is likely to be used again so leave it in the cache
GrCacheID cacheID;
generate_bitmap_cache_id(origBitmap, &cacheID);
return ctx->createTexture(params, desc, cacheID, bitmap->getPixels(), bitmap->rowBytes());
} else {
// This texture is unlikely to be used again (in its present form) so
// just use a scratch texture. This will remove the texture from the
// cache so no one else can find it. Additionally, once unlocked, the
// scratch texture will go to the end of the list for purging so will
// likely be available for this volatile bitmap the next time around.
GrTexture* result = ctx->lockAndRefScratchTexture(desc, GrContext::kExact_ScratchTexMatch);
result->writePixels(0, 0,
bitmap->width(), bitmap->height(),
desc.fConfig,
bitmap->getPixels(),
bitmap->rowBytes());
return result;
}
}
DEF_GPUTEST(ReadWriteAlpha, reporter, factory) {
for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
if (!GrContextFactory::IsRenderingGLContext(glType)) {
continue;
}
GrContext* context = factory->get(glType);
if (NULL == context) {
continue;
}
unsigned char textureData[X_SIZE][Y_SIZE];
memset(textureData, 0, X_SIZE * Y_SIZE);
GrSurfaceDesc desc;
// let Skia know we will be using this texture as a render target
desc.fFlags = kRenderTarget_GrSurfaceFlag;
// it is a single channel texture
desc.fConfig = kAlpha_8_GrPixelConfig;
desc.fWidth = X_SIZE;
desc.fHeight = Y_SIZE;
// We are initializing the texture with zeros here
GrTexture* texture = context->createTexture(desc, false, textureData, 0);
if (!texture) {
return;
}
SkAutoTUnref<GrTexture> au(texture);
// create a distinctive texture
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
textureData[x][y] = x*Y_SIZE+y;
}
}
// upload the texture
texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
textureData, 0);
unsigned char readback[X_SIZE][Y_SIZE];
// clear readback to something non-zero so we can detect readback failures
memset(readback, 0x1, X_SIZE * Y_SIZE);
// read the texture back
texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
readback, 0);
// make sure the original & read back versions match
bool match = true;
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
if (textureData[x][y] != readback[x][y]) {
match = false;
}
}
}
REPORTER_ASSERT(reporter, match);
// Now try writing on the single channel texture
SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
SkAutoTUnref<SkBaseDevice> device(SkGpuDevice::Create(texture->asRenderTarget(), &props));
SkCanvas canvas(device);
SkPaint paint;
const SkRect rect = SkRect::MakeLTRB(-10, -10, X_SIZE + 10, Y_SIZE + 10);
paint.setColor(SK_ColorWHITE);
canvas.drawRect(rect, paint);
texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
readback, 0);
match = true;
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
if (0xFF != readback[x][y]) {
match = false;
}
}
}
REPORTER_ASSERT(reporter, match);
}
}
