117 lines
4.9 KiB
C++
117 lines
4.9 KiB
C++
/*
|
|
* Copyright 2021 Google LLC
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "include/core/SkBitmap.h"
|
|
#include "include/core/SkBlendMode.h"
|
|
#include "include/core/SkBlender.h" // IWYU pragma: keep
|
|
#include "include/core/SkCanvas.h"
|
|
#include "include/core/SkColor.h"
|
|
#include "include/core/SkImageInfo.h"
|
|
#include "include/core/SkPaint.h"
|
|
#include "include/core/SkRect.h"
|
|
#include "include/core/SkRefCnt.h"
|
|
#include "include/core/SkShader.h"
|
|
#include "include/core/SkSurface.h"
|
|
#include "include/core/SkTypes.h"
|
|
#include "include/gpu/GpuTypes.h"
|
|
#include "include/gpu/GrDirectContext.h"
|
|
#include "tests/CtsEnforcement.h"
|
|
#include "tests/Test.h"
|
|
#include "tools/RuntimeBlendUtils.h"
|
|
|
|
#include <cmath>
|
|
#include <initializer_list>
|
|
#include <vector>
|
|
|
|
struct GrContextOptions;
|
|
|
|
static bool nearly_equal(const SkColor& x, const SkColor& y) {
|
|
const int kTolerance = 1;
|
|
return abs((int)SkColorGetA(x) - (int)SkColorGetA(y)) <= kTolerance &&
|
|
abs((int)SkColorGetR(x) - (int)SkColorGetR(y)) <= kTolerance &&
|
|
abs((int)SkColorGetG(x) - (int)SkColorGetG(y)) <= kTolerance &&
|
|
abs((int)SkColorGetB(x) - (int)SkColorGetB(y)) <= kTolerance;
|
|
}
|
|
|
|
static void test_blend(skiatest::Reporter* r, SkSurface* surface) {
|
|
SkBitmap bitmap;
|
|
REPORTER_ASSERT(r, bitmap.tryAllocPixels(surface->imageInfo()));
|
|
|
|
for (int m = 0; m < kSkBlendModeCount; ++m) {
|
|
SkBlendMode mode = (SkBlendMode)m;
|
|
for (int alpha : {0x80, 0xFF}) {
|
|
for (bool useShader : {false, true}) {
|
|
std::vector<SkColor> colors;
|
|
for (bool useRuntimeBlend : {false, true}) {
|
|
// Draw a solid red pixel.
|
|
SkPaint paint;
|
|
paint.setColor(SK_ColorRED);
|
|
paint.setBlendMode(SkBlendMode::kSrc);
|
|
surface->getCanvas()->drawRect(SkRect::MakeWH(1, 1), paint);
|
|
|
|
// Draw a blue pixel on top of it, using the passed-in blend mode.
|
|
if (useShader) {
|
|
// Install a different color in the paint, to ensure we're using the shader
|
|
paint.setColor(SK_ColorGREEN);
|
|
paint.setShader(SkShaders::Color(SkColorSetARGB(alpha, 0x00, 0x00, 0xFF)));
|
|
} else {
|
|
paint.setColor(SkColorSetARGB(alpha, 0x00, 0x00, 0xFF));
|
|
}
|
|
if (useRuntimeBlend) {
|
|
paint.setBlender(GetRuntimeBlendForBlendMode(mode));
|
|
} else {
|
|
paint.setBlendMode(mode);
|
|
}
|
|
surface->getCanvas()->drawRect(SkRect::MakeWH(1, 1), paint);
|
|
|
|
// Read back the red/blue blended pixel.
|
|
REPORTER_ASSERT(r,
|
|
surface->readPixels(bitmap.info(),
|
|
bitmap.getPixels(),
|
|
bitmap.rowBytes(),
|
|
/*srcX=*/0,
|
|
/*srcY=*/0));
|
|
colors.push_back(bitmap.getColor(/*x=*/0, /*y=*/0));
|
|
}
|
|
|
|
REPORTER_ASSERT(r,
|
|
nearly_equal(colors[0], colors[1]),
|
|
"Expected: %s %s %s blend matches. Actual: Built-in "
|
|
"A=%02X R=%02X G=%02X B=%02X, Runtime A=%02X R=%02X G=%02X B=%02X",
|
|
SkBlendMode_Name(mode),
|
|
(alpha == 0xFF) ? "solid" : "transparent",
|
|
useShader ? "shader" : "paint",
|
|
SkColorGetA(colors[0]),
|
|
SkColorGetR(colors[0]),
|
|
SkColorGetG(colors[0]),
|
|
SkColorGetB(colors[0]),
|
|
SkColorGetA(colors[1]),
|
|
SkColorGetR(colors[1]),
|
|
SkColorGetG(colors[1]),
|
|
SkColorGetB(colors[1]));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
DEF_TEST(SkRuntimeBlender_CPU, r) {
|
|
const SkImageInfo info = SkImageInfo::MakeN32Premul(/*width=*/1, /*height=*/1);
|
|
sk_sp<SkSurface> surface(SkSurface::MakeRaster(info));
|
|
|
|
test_blend(r, surface.get());
|
|
}
|
|
|
|
DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SkRuntimeBlender_GPU,
|
|
r,
|
|
ctxInfo,
|
|
CtsEnforcement::kApiLevel_T) {
|
|
const SkImageInfo info = SkImageInfo::MakeN32Premul(/*width=*/1, /*height=*/1);
|
|
sk_sp<SkSurface> surface(
|
|
SkSurface::MakeRenderTarget(ctxInfo.directContext(), skgpu::Budgeted::kNo, info));
|
|
test_blend(r, surface.get());
|
|
}
|