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skia2/gm/rectangletexture.cpp
Robert Phillips 95c250c247 Downgrade GpuGMs to only receiving a GrRecordingContext 
Most of this CL is just noise (i.e., all the header changes) due to the
signature change. The 'discard' GM has some substantive changes but
that's about it.

Change-Id: I72011a442c149b5db93cf8decade6779be4f63d8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/296704
Reviewed-by: Adlai Holler <adlai@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2020-06-30 13:02:33 +00:00

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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
// This test only works with the GL backend.
#include "gm/gm.h"
#ifdef SK_GL
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFilterQuality.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "include/gpu/GrBackendSurface.h"
#include "include/gpu/GrContext.h"
#include "include/gpu/GrTypes.h"
#include "src/core/SkAutoPixmapStorage.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrGpu.h"
#include "src/gpu/gl/GrGLCaps.h"
#include "src/gpu/gl/GrGLDefines.h"
#include <algorithm>
#include <cstdint>
#include <memory>
class GrRenderTargetContext;
namespace skiagm {
class RectangleTexture : public GpuGM {
public:
RectangleTexture() {
this->setBGColor(0xFFFFFFFF);
}
private:
enum class ImageType {
kGradientCircle,
k2x2
};
SkString onShortName() override {
return SkString("rectangle_texture");
}
SkISize onISize() override { return SkISize::Make(1180, 710); }
SkBitmap makeImagePixels(int size, ImageType type) {
auto ii = SkImageInfo::Make(size, size, kRGBA_8888_SkColorType, kOpaque_SkAlphaType);
switch (type) {
case ImageType::kGradientCircle: {
SkBitmap bmp;
bmp.allocPixels(ii);
SkPaint paint;
SkCanvas canvas(bmp);
SkPoint pts[] = {{0, 0}, {0, SkIntToScalar(size)}};
SkColor colors0[] = {0xFF1060B0, 0xFF102030};
paint.setShader(
SkGradientShader::MakeLinear(pts, colors0, nullptr, 2, SkTileMode::kClamp));
canvas.drawPaint(paint);
SkColor colors1[] = {0xFFA07010, 0xFFA02080};
paint.setAntiAlias(true);
paint.setShader(
SkGradientShader::MakeLinear(pts, colors1, nullptr, 2, SkTileMode::kClamp));
canvas.drawCircle(size/2.f, size/2.f, 2.f*size/5, paint);
return bmp;
}
case ImageType::k2x2: {
SkBitmap bmp;
bmp.allocPixels(ii);
*bmp.getAddr32(0, 0) = 0xFF0000FF;
*bmp.getAddr32(1, 0) = 0xFF00FF00;
*bmp.getAddr32(0, 1) = 0xFFFF0000;
*bmp.getAddr32(1, 1) = 0xFFFFFFFF;
return bmp;
}
}
SkUNREACHABLE;
}
sk_sp<SkImage> createRectangleTextureImg(GrContext* context, GrSurfaceOrigin origin,
const SkBitmap content) {
SkASSERT(content.colorType() == kRGBA_8888_SkColorType);
auto format = GrBackendFormat::MakeGL(GR_GL_RGBA8, GR_GL_TEXTURE_RECTANGLE);
auto bet = context->createBackendTexture(content.width(), content.height(), format,
GrMipMapped::kNo, GrRenderable::kNo);
if (!bet.isValid()) {
return nullptr;
}
const SkPixmap* pm = &content.pixmap();
SkAutoPixmapStorage tempPM;
if (origin == kBottomLeft_GrSurfaceOrigin) {
tempPM.alloc(pm->info());
const uint32_t* src = pm->addr32();
uint32_t* dst = tempPM.writable_addr32(0, content.height() - 1);
for (int y = 0; y < content.height(); ++y,
src += pm->rowBytesAsPixels(),
dst -= tempPM.rowBytesAsPixels()) {
std::copy_n(src, content.width(), dst);
}
pm = &tempPM;
}
if (!context->updateBackendTexture(bet, pm, 1, nullptr, nullptr)) {
context->deleteBackendTexture(bet);
}
return SkImage::MakeFromAdoptedTexture(context, bet, origin, kRGBA_8888_SkColorType);
}
DrawResult onGpuSetup(GrContext* context, SkString* errorMsg) override {
if (!context || context->abandoned()) {
return DrawResult::kSkip;
}
if (context->backend() != GrBackendApi::kOpenGL_GrBackend ||
!static_cast<const GrGLCaps*>(context->priv().caps())->rectangleTextureSupport()) {
*errorMsg = "This GM requires an OpenGL context that supports texture rectangles.";
return DrawResult::kSkip;
}
auto gradCircle = this->makeImagePixels(50, ImageType::kGradientCircle);
fGradImgs[0] = this->createRectangleTextureImg(context, kTopLeft_GrSurfaceOrigin,
gradCircle);
fGradImgs[1] = this->createRectangleTextureImg(context, kBottomLeft_GrSurfaceOrigin,
gradCircle);
SkASSERT(SkToBool(fGradImgs[0]) == SkToBool(fGradImgs[1]));
if (!fGradImgs[0]) {
*errorMsg = "Could not create gradient rectangle texture images.";
return DrawResult::kFail;
}
fSmallImg = this->createRectangleTextureImg(context, kTopLeft_GrSurfaceOrigin,
this->makeImagePixels(2, ImageType::k2x2));
if (!fSmallImg) {
*errorMsg = "Could not create 2x2 rectangle texture image.";
return DrawResult::kFail;
}
return DrawResult::kOk;
}
void onGpuTeardown() override {
fGradImgs[0] = fGradImgs[1] = nullptr;
fSmallImg = nullptr;
}
DrawResult onDraw(GrRecordingContext*, GrRenderTargetContext*, SkCanvas* canvas,
SkString*) override {
SkASSERT(fGradImgs[0] && fGradImgs[1] && fSmallImg);
static constexpr SkScalar kPad = 5.f;
constexpr SkFilterQuality kQualities[] = {
kNone_SkFilterQuality,
kLow_SkFilterQuality,
kMedium_SkFilterQuality,
kHigh_SkFilterQuality,
};
constexpr SkScalar kScales[] = {1.0f, 1.2f, 0.75f};
canvas->translate(kPad, kPad);
for (size_t i = 0; i < kNumGradImages; ++i) {
auto img = fGradImgs[i];
int w = img->width();
int h = img->height();
for (auto s : kScales) {
canvas->save();
canvas->scale(s, s);
for (auto q : kQualities) {
// drawImage
SkPaint plainPaint;
plainPaint.setFilterQuality(q);
canvas->drawImage(img, 0, 0, &plainPaint);
canvas->translate(w + kPad, 0);
// clamp/clamp shader
SkPaint clampPaint;
clampPaint.setFilterQuality(q);
clampPaint.setShader(fGradImgs[i]->makeShader());
canvas->drawRect(SkRect::MakeWH(1.5f*w, 1.5f*h), clampPaint);
canvas->translate(1.5f*w + kPad, 0);
// repeat/mirror shader
SkPaint repeatPaint;
repeatPaint.setFilterQuality(q);
repeatPaint.setShader(fGradImgs[i]->makeShader(SkTileMode::kRepeat,
SkTileMode::kMirror));
canvas->drawRect(SkRect::MakeWH(1.5f*w, 1.5f*h), repeatPaint);
canvas->translate(1.5f*w + kPad, 0);
// drawImageRect with kStrict
auto srcRect = SkRect::MakeXYWH(.25f*w, .25f*h, .50f*w, .50f*h);
auto dstRect = SkRect::MakeXYWH( 0, 0, .50f*w, .50f*h);
canvas->drawImageRect(fGradImgs[i], srcRect, dstRect, &plainPaint,
SkCanvas::kStrict_SrcRectConstraint);
canvas->translate(.5f*w + kPad, 0);
}
canvas->restore();
canvas->translate(0, kPad + 1.5f*h*s);
}
}
static constexpr SkScalar kOutset = 25.f;
canvas->translate(kOutset, kOutset);
auto dstRect = SkRect::Make(fSmallImg->dimensions()).makeOutset(kOutset, kOutset);
for (int fq = kNone_SkFilterQuality; fq <= kLast_SkFilterQuality; ++fq) {
if (fq == kMedium_SkFilterQuality) {
// Medium is the same as Low for upscaling.
continue;
}
canvas->save();
for (int ty = 0; ty < kSkTileModeCount; ++ty) {
canvas->save();
for (int tx = 0; tx < kSkTileModeCount; ++tx) {
SkMatrix lm;
lm.setRotate(45.f, 1, 1);
lm.postScale(6.5f, 6.5f);
auto shader = fSmallImg->makeShader(static_cast<SkTileMode>(tx),
static_cast<SkTileMode>(ty), &lm);
SkPaint paint;
paint.setShader(std::move(shader));
paint.setFilterQuality(static_cast<SkFilterQuality>(fq));
canvas->drawRect(dstRect, paint);
canvas->translate(dstRect.width() + kPad, 0);
}
canvas->restore();
canvas->translate(0, dstRect.height() + kPad);
}
canvas->restore();
canvas->translate((dstRect.width() + kPad)*kSkTileModeCount, 0);
}
return DrawResult::kOk;
}
private:
static const int kNumGradImages = 2;
sk_sp<SkImage> fGradImgs[kNumGradImages];
sk_sp<SkImage> fSmallImg;
typedef GM INHERITED;
};
DEF_GM(return new RectangleTexture;)
}
#endif
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