e19babf996
Having GrAtlasManager.h in GrContextPriv.h was needlessly propagating dependence on that header. Change-Id: Idf5836f1e217ecd2da91f751b488a63a884c02ce Reviewed-on: https://skia-review.googlesource.com/c/skia/+/281739 Commit-Queue: Robert Phillips <robertphillips@google.com> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
91 lines
3.6 KiB
C++
91 lines
3.6 KiB
C++
/*
|
|
* Copyright 2014 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
/*
|
|
* This is a straightforward test of floating point textures, which are
|
|
* supported on some platforms. As of right now, this test only supports
|
|
* 32 bit floating point textures, and indeed floating point test values
|
|
* have been selected to require 32 bits of precision and full IEEE conformance
|
|
*/
|
|
|
|
#include "tests/Test.h"
|
|
|
|
#include "include/gpu/GrContext.h"
|
|
#include "include/private/SkHalf.h"
|
|
#include "src/gpu/GrContextPriv.h"
|
|
#include "src/gpu/GrImageInfo.h"
|
|
#include "src/gpu/GrProxyProvider.h"
|
|
#include "src/gpu/GrSurfaceContext.h"
|
|
#include "src/gpu/GrTextureProxy.h"
|
|
#include "tools/gpu/ProxyUtils.h"
|
|
|
|
#include <float.h>
|
|
|
|
static const int DEV_W = 100, DEV_H = 100;
|
|
|
|
template <typename T>
|
|
void runFPTest(skiatest::Reporter* reporter, GrContext* context, T min, T max, T epsilon, T maxInt,
|
|
int arraySize, GrColorType colorType) {
|
|
if (0 != arraySize % 4) {
|
|
REPORT_FAILURE(reporter, "(0 != arraySize % 4)",
|
|
SkString("arraySize must be divisible by 4."));
|
|
return;
|
|
}
|
|
|
|
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 (auto origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
|
|
auto fpProxy = sk_gpu_test::MakeTextureProxyFromData(
|
|
context, GrRenderable::kYes, origin,
|
|
{colorType, kPremul_SkAlphaType, nullptr, DEV_W, DEV_H},
|
|
controlPixelData.begin(), 0);
|
|
// Floating point textures are NOT supported everywhere
|
|
if (!fpProxy) {
|
|
continue;
|
|
}
|
|
|
|
GrSwizzle swizzle = context->priv().caps()->getReadSwizzle(fpProxy->backendFormat(),
|
|
colorType);
|
|
GrSurfaceProxyView view(std::move(fpProxy), origin, swizzle);
|
|
auto sContext = GrSurfaceContext::Make(context, std::move(view), colorType,
|
|
kPremul_SkAlphaType, nullptr);
|
|
REPORTER_ASSERT(reporter, sContext);
|
|
|
|
bool result = sContext->readPixels({colorType, kPremul_SkAlphaType, nullptr, DEV_W, DEV_H},
|
|
readBuffer.begin(), 0, {0, 0}, context);
|
|
REPORTER_ASSERT(reporter, result);
|
|
REPORTER_ASSERT(reporter,
|
|
0 == memcmp(readBuffer.begin(), controlPixelData.begin(), readBuffer.bytes()));
|
|
}
|
|
}
|
|
|
|
static const int HALF_ALPHA_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 1 /*alpha-only*/;
|
|
static const SkHalf kMaxIntegerRepresentableInHalfFloatingPoint = 0x6800; // 2 ^ 11
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(HalfFloatAlphaTextureTest, reporter, ctxInfo) {
|
|
runFPTest<SkHalf>(reporter, ctxInfo.grContext(), SK_HalfMin, SK_HalfMax, SK_HalfEpsilon,
|
|
kMaxIntegerRepresentableInHalfFloatingPoint, HALF_ALPHA_CONTROL_ARRAY_SIZE,
|
|
GrColorType::kAlpha_F16);
|
|
}
|
|
|
|
static const int HALF_RGBA_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 4 /*RGBA*/;
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(HalfFloatRGBATextureTest, reporter, ctxInfo) {
|
|
runFPTest<SkHalf>(reporter, ctxInfo.grContext(), SK_HalfMin, SK_HalfMax, SK_HalfEpsilon,
|
|
kMaxIntegerRepresentableInHalfFloatingPoint, HALF_RGBA_CONTROL_ARRAY_SIZE,
|
|
GrColorType::kRGBA_F16);
|
|
}
|