skia2/gm/etc1.cpp
Brian Salomon 649a3411f9 Add a separate draw function to GrRenderTargetContext for GrMeshDrawOp derived classes.
The first phase of deferring GrPipeline creation until flush will apply only to GrDrawOp subclasses that do not derive from GrMeshDrawOp. This change prepares for that by creating separate draw functions on GrRenderTargetContext for GrMeshDrawOp-derived ops. This is temporary and will incrementally be undone as pipeline-creation deferral rolls out to the GrMeshDrawOps in a later phase of this work.


Change-Id: I0f5b71fe913f3273cfe9e965f7d8bbe7f01ad0ef
Reviewed-on: https://skia-review.googlesource.com/9481
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2017-03-09 19:26:13 +00:00

123 lines
3.9 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkRandom.h"
#if SK_SUPPORT_GPU
#include "etc1.h"
#include "GrContext.h"
#include "GrRenderTargetContext.h"
#include "GrRenderTargetContextPriv.h"
#include "GrTextureProxy.h"
#include "effects/GrSimpleTextureEffect.h"
#include "ops/GrRectOpFactory.h"
// Basic test of Ganesh's ETC1 support
class ETC1GM : public skiagm::GM {
public:
ETC1GM() {
this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
}
protected:
SkString onShortName() override {
return SkString("etc1");
}
SkISize onISize() override {
return SkISize::Make(kTexWidth + 2*kPad, kTexHeight + 2*kPad);
}
// TODO: we should be creating an ETC1 SkData blob here and going through SkImageCacherator.
// That will require an ETC1 Codec though - so for later.
void onOnceBeforeDraw() override {
SkBitmap bm;
SkImageInfo ii = SkImageInfo::Make(kTexWidth, kTexHeight, kRGB_565_SkColorType,
kOpaque_SkAlphaType);
bm.allocPixels(ii);
bm.erase(SK_ColorBLUE, SkIRect::MakeWH(kTexWidth, kTexHeight));
for (int y = 0; y < kTexHeight; y += 4) {
for (int x = 0; x < kTexWidth; x += 4) {
bm.erase((x+y) % 8 ? SK_ColorRED : SK_ColorGREEN, SkIRect::MakeXYWH(x, y, 4, 4));
}
}
int size = etc1_get_encoded_data_size(bm.width(), bm.height());
fETC1Data.reset(size);
unsigned char* pixels = (unsigned char*) fETC1Data.get();
if (etc1_encode_image((unsigned char*) bm.getAddr16(0, 0),
bm.width(), bm.height(), 2, bm.rowBytes(), pixels)) {
fETC1Data.reset();
}
}
void onDraw(SkCanvas* canvas) override {
GrRenderTargetContext* renderTargetContext =
canvas->internal_private_accessTopLayerRenderTargetContext();
if (!renderTargetContext) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
GrContext* context = canvas->getGrContext();
if (!context) {
return;
}
GrSurfaceDesc desc;
desc.fConfig = kETC1_GrPixelConfig;
desc.fWidth = kTexWidth;
desc.fHeight = kTexHeight;
sk_sp<GrTextureProxy> proxy = GrSurfaceProxy::MakeDeferred(*context->caps(),
context->resourceProvider(),
desc, SkBudgeted::kYes,
fETC1Data.get(), 0);
if (!proxy) {
return;
}
const SkMatrix trans = SkMatrix::MakeTrans(-kPad, -kPad);
sk_sp<GrFragmentProcessor> fp = GrSimpleTextureEffect::Make(context,
std::move(proxy),
nullptr, trans);
GrPaint grPaint;
grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
grPaint.addColorFragmentProcessor(std::move(fp));
SkRect rect = SkRect::MakeXYWH(kPad, kPad, kTexWidth, kTexHeight);
std::unique_ptr<GrMeshDrawOp> op(GrRectOpFactory::MakeNonAAFill(
GrColor_WHITE, SkMatrix::I(), rect, nullptr, nullptr));
renderTargetContext->priv().testingOnly_addMeshDrawOp(std::move(grPaint), GrAAType::kNone,
std::move(op));
}
private:
static const int kPad = 8;
static const int kTexWidth = 16;
static const int kTexHeight = 20;
SkAutoTMalloc<char> fETC1Data;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ETC1GM;)
#endif