DEF_GPUTEST(FloatingPointTextureTest, reporter, factory) {
float controlPixelData[FP_CONTROL_ARRAY_SIZE];
float readBuffer[FP_CONTROL_ARRAY_SIZE];
for (int i = 0; i < FP_CONTROL_ARRAY_SIZE; i += 4) {
controlPixelData[i] = FLT_MIN;
controlPixelData[i + 1] = FLT_MAX;
controlPixelData[i + 2] = FLT_EPSILON;
controlPixelData[i + 3] = kMaxIntegerRepresentableInSPFloatingPoint;
}
for (int origin = 0; origin < 2; ++origin) {
int glCtxTypeCnt = 1;
glCtxTypeCnt = GrContextFactory::kGLContextTypeCnt;
for (int glCtxType = 0; glCtxType < glCtxTypeCnt; ++glCtxType) {
GrTextureDesc desc;
desc.fFlags = kRenderTarget_GrTextureFlagBit;
desc.fWidth = DEV_W;
desc.fHeight = DEV_H;
desc.fConfig = kRGBA_float_GrPixelConfig;
desc.fOrigin = 0 == origin ?
kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
GrContext* context = NULL;
GrContextFactory::GLContextType type =
static_cast<GrContextFactory::GLContextType>(glCtxType);
if (!GrContextFactory::IsRenderingGLContext(type)) {
continue;
}
context = factory->get(type);
if (NULL == context){
continue;
}
SkAutoTUnref<GrTexture> fpTexture(context->createUncachedTexture(desc,
NULL,
0));
// Floating point textures are NOT supported everywhere
if (NULL == fpTexture) {
continue;
}
// write square
context->writeTexturePixels(fpTexture, 0, 0, DEV_W, DEV_H, desc.fConfig,
controlPixelData, 0);
context->readTexturePixels(fpTexture, 0, 0, DEV_W, DEV_H, desc.fConfig, readBuffer, 0);
for (int j = 0; j < FP_CONTROL_ARRAY_SIZE; ++j) {
REPORTER_ASSERT(reporter, readBuffer[j] == controlPixelData[j]);
}
}
}
}
DEF_GPUTEST(HalfFloatTextureTest, reporter, factory) {
SkHalf controlPixelData[HALF_CONTROL_ARRAY_SIZE];
SkHalf readBuffer[HALF_CONTROL_ARRAY_SIZE];
for (int i = 0; i < HALF_CONTROL_ARRAY_SIZE; i += 4) {
controlPixelData[i] = SK_HalfMin;
controlPixelData[i + 1] = SK_HalfMax;
controlPixelData[i + 2] = SK_HalfEpsilon;
controlPixelData[i + 3] = 0x6800; // 2^11
}
for (int origin = 0; origin < 2; ++origin) {
int glCtxTypeCnt = 1;
glCtxTypeCnt = GrContextFactory::kGLContextTypeCnt;
for (int glCtxType = 0; glCtxType < glCtxTypeCnt; ++glCtxType) {
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = DEV_W;
desc.fHeight = DEV_H;
desc.fConfig = kAlpha_half_GrPixelConfig;
desc.fOrigin = 0 == origin ?
kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
GrContext* context = NULL;
GrContextFactory::GLContextType type =
static_cast<GrContextFactory::GLContextType>(glCtxType);
if (!GrContextFactory::IsRenderingGLContext(type)) {
continue;
}
context = factory->get(type);
if (NULL == context){
continue;
}
SkAutoTUnref<GrTexture> fpTexture(context->createUncachedTexture(desc,
NULL,
0));
// 16-bit floating point textures are NOT supported everywhere
if (NULL == fpTexture) {
continue;
}
// write square
fpTexture->writePixels(0, 0, DEV_W, DEV_H, desc.fConfig, controlPixelData, 0);
fpTexture->readPixels(0, 0, DEV_W, DEV_H, desc.fConfig, readBuffer, 0);
for (int j = 0; j < HALF_CONTROL_ARRAY_SIZE; ++j) {
REPORTER_ASSERT(reporter, readBuffer[j] == controlPixelData[j]);
}
}
}
}
void runFPTest(skiatest::Reporter* reporter, GrContextFactory* factory,
T min, T max, T epsilon, T maxInt, int arraySize, GrPixelConfig config) {
SkTDArray<T> controlPixelData, readBuffer;
controlPixelData.setCount(arraySize);
readBuffer.setCount(arraySize);
for (int i = 0; i < arraySize; i += 4) {
controlPixelData[i + 0] = min;
controlPixelData[i + 1] = max;
controlPixelData[i + 2] = epsilon;
controlPixelData[i + 3] = maxInt;
}
for (int origin = 0; origin < 2; ++origin) {
for (int glCtxType = 0; glCtxType < GrContextFactory::kGLContextTypeCnt; ++glCtxType) {
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = DEV_W;
desc.fHeight = DEV_H;
desc.fConfig = config;
desc.fOrigin = 0 == origin ?
kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
GrContextFactory::GLContextType type =
static_cast<GrContextFactory::GLContextType>(glCtxType);
if (!GrContextFactory::IsRenderingGLContext(type)) {
continue;
}
GrContext* context = factory->get(type);
if (nullptr == context) {
continue;
}
SkAutoTUnref<GrTexture> fpTexture(context->textureProvider()->createTexture(
desc, false, controlPixelData.begin(), 0));
// Floating point textures are NOT supported everywhere
if (nullptr == fpTexture) {
continue;
}
fpTexture->readPixels(0, 0, DEV_W, DEV_H, desc.fConfig, readBuffer.begin(), 0);
REPORTER_ASSERT(reporter,
0 == memcmp(readBuffer.begin(), controlPixelData.begin(), readBuffer.bytes()));
}
}
}
