c7ad40f76f
Most of this is (obviously) not necessary to do, but once I started, I figured I'd just get it all. Tools (nanobench, DM, skiaserve), all GMs, benches, and unit tests, plus support code (command line parsing and config stuff). This is almost entirely mechanical. Bug: skia: Change-Id: I209500f8df8c5bd43f8298ff26440d1c4d7425fb Reviewed-on: https://skia-review.googlesource.com/131153 Reviewed-by: Mike Klein <mtklein@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
100 lines
4.0 KiB
C++
100 lines
4.0 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 <float.h>
|
|
#include "Test.h"
|
|
|
|
#include "GrContext.h"
|
|
#include "GrContextPriv.h"
|
|
#include "GrProxyProvider.h"
|
|
#include "GrTextureProxy.h"
|
|
#include "ProxyUtils.h"
|
|
#include "SkHalf.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, true, DEV_W, DEV_H, colorType,
|
|
origin, controlPixelData.begin(), 0);
|
|
// Floating point textures are NOT supported everywhere
|
|
if (!fpProxy) {
|
|
continue;
|
|
}
|
|
|
|
sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(
|
|
std::move(fpProxy));
|
|
REPORTER_ASSERT(reporter, sContext);
|
|
|
|
bool result = context->contextPriv().readSurfacePixels(
|
|
sContext.get(), 0, 0, DEV_W, DEV_H, colorType, nullptr, readBuffer.begin(), 0);
|
|
REPORTER_ASSERT(reporter, result);
|
|
REPORTER_ASSERT(reporter,
|
|
0 == memcmp(readBuffer.begin(), controlPixelData.begin(), readBuffer.bytes()));
|
|
}
|
|
}
|
|
|
|
static const int RGBA32F_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 4;
|
|
static const float kMaxIntegerRepresentableInSPFloatingPoint = 16777216; // 2 ^ 24
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(FloatingPointTextureTest, reporter, ctxInfo) {
|
|
runFPTest<float>(reporter, ctxInfo.grContext(), FLT_MIN, FLT_MAX, FLT_EPSILON,
|
|
kMaxIntegerRepresentableInSPFloatingPoint, RGBA32F_CONTROL_ARRAY_SIZE,
|
|
GrColorType::kRGBA_F32);
|
|
}
|
|
|
|
static const int RG32F_CONTROL_ARRAY_SIZE = DEV_W * DEV_H * 2;
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(FloatingPointTextureTest_RG, reporter, ctxInfo) {
|
|
runFPTest<float>(reporter, ctxInfo.grContext(), FLT_MIN, FLT_MAX, FLT_EPSILON,
|
|
kMaxIntegerRepresentableInSPFloatingPoint, RG32F_CONTROL_ARRAY_SIZE,
|
|
GrColorType::kRG_F32);
|
|
}
|
|
|
|
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);
|
|
}
|