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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.
*/
#include <vector>
#include "gm.h"
#include "SkImage.h"
#include "SkMipMap.h"
#include "Resources.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
// Helper function that uploads the given SkImage using MakeFromDeferredTextureImageData and then
// draws the uploaded version at the specified coordinates.
static void DrawDeferredTextureImageData(SkCanvas* canvas,
const char* resourceName,
SkImage::DeferredTextureImageUsageParams* params,
SkColorType dstColorType) {
GrContext* context = canvas->getGrContext();
if (!context) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
sk_sp<GrContextThreadSafeProxy> proxy(context->threadSafeProxy());
sk_sp<SkImage> encodedImage = GetResourceAsImage(resourceName);
if (!encodedImage) {
SkDebugf("\nCould not load resource.\n");
return;
}
size_t requiredMemoryInBytes = encodedImage->getDeferredTextureImageData(
*proxy, params, 1, nullptr, canvas->imageInfo().colorSpace(), dstColorType);
if (requiredMemoryInBytes == 0) {
SkDebugf("\nCould not create DeferredTextureImageData.\n");
return;
}
std::vector<uint8_t> memory;
memory.resize(requiredMemoryInBytes);
encodedImage->getDeferredTextureImageData(
*proxy, params, 1, memory.data(), canvas->imageInfo().colorSpace(), dstColorType);
sk_sp<SkImage> uploadedEncodedImage = SkImage::MakeFromDeferredTextureImageData(
context, memory.data(), SkBudgeted::kNo);
canvas->drawImage(uploadedEncodedImage, 10, 10);
SkBitmap bitmap;
if (!GetResourceAsBitmap(resourceName, &bitmap)) {
SkDebugf("\nCould not decode resource.\n");
return;
}
sk_sp<SkImage> decodedImage = SkImage::MakeFromBitmap(bitmap);
requiredMemoryInBytes = decodedImage->getDeferredTextureImageData(
*proxy, params, 1, nullptr, canvas->imageInfo().colorSpace(), dstColorType);
if (requiredMemoryInBytes == 0) {
SkDebugf("\nCould not create DeferredTextureImageData.\n");
return;
}
memory.resize(requiredMemoryInBytes);
decodedImage->getDeferredTextureImageData(
*proxy, params, 1, memory.data(), canvas->imageInfo().colorSpace(), dstColorType);
sk_sp<SkImage> uploadedDecodedImage = SkImage::MakeFromDeferredTextureImageData(
context, memory.data(), SkBudgeted::kNo);
canvas->drawImage(uploadedDecodedImage, encodedImage->width() + 20, 10);
}
static void DrawDeferredTextureImageMipMapTree(SkCanvas* canvas, SkImage* image,
SkImage::DeferredTextureImageUsageParams* params,
SkColorType dstColorType) {
GrContext* context = canvas->getGrContext();
if (!context) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
sk_sp<GrContextThreadSafeProxy> proxy(context->threadSafeProxy());
SkPaint paint;
paint.setFilterQuality(params->fQuality);
int mipLevelCount = SkMipMap::ComputeLevelCount(image->width(), image->height());
size_t requiredMemoryInBytes = image->getDeferredTextureImageData(
*proxy, params, 1, nullptr, canvas->imageInfo().colorSpace(), dstColorType);
if (requiredMemoryInBytes == 0) {
SkDebugf("\nCould not create DeferredTextureImageData.\n");
return;
}
std::vector<uint8_t> memory;
memory.resize(requiredMemoryInBytes);
image->getDeferredTextureImageData(
*proxy, params, 1, memory.data(), canvas->imageInfo().colorSpace(), dstColorType);
sk_sp<SkImage> uploadedImage = SkImage::MakeFromDeferredTextureImageData(
context, memory.data(), SkBudgeted::kNo);
// draw a column using deferred texture images
SkScalar offsetHeight = 10.f;
// handle base mipmap level
canvas->save();
canvas->translate(10.f, offsetHeight);
canvas->drawImage(uploadedImage, 0, 0, &paint);
canvas->restore();
offsetHeight += image->height() + 10;
// handle generated mipmap levels
for (int i = 0; i < mipLevelCount; i++) {
SkISize mipSize = SkMipMap::ComputeLevelSize(image->width(), image->height(), i);
canvas->save();
canvas->translate(10.f, offsetHeight);
canvas->scale(mipSize.width() / static_cast<float>(image->width()),
mipSize.height() / static_cast<float>(image->height()));
canvas->drawImage(uploadedImage, 0, 0, &paint);
canvas->restore();
offsetHeight += mipSize.height() + 10;
}
// draw a column using SkImage
offsetHeight = 10;
// handle base mipmap level
canvas->save();
canvas->translate(image->width() + 20.f, offsetHeight);
canvas->drawImage(image, 0, 0, &paint);
canvas->restore();
offsetHeight += image->height() + 10;
// handle generated mipmap levels
for (int i = 0; i < mipLevelCount; i++) {
SkISize mipSize = SkMipMap::ComputeLevelSize(image->width(), image->height(), i);
canvas->save();
canvas->translate(image->width() + 20.f, offsetHeight);
canvas->scale(mipSize.width() / static_cast<float>(image->width()),
mipSize.height() / static_cast<float>(image->height()));
canvas->drawImage(image, 0, 0, &paint);
canvas->restore();
offsetHeight += mipSize.height() + 10;
}
}
DEF_SIMPLE_GM(deferred_texture_image_none, canvas, 512 + 512 + 30, 512 + 20) {
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(1.f, 1.f),
kNone_SkFilterQuality, 0);
DrawDeferredTextureImageData(canvas, "mandrill_512.png", ¶ms, kN32_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_low, canvas, 512 + 512 + 30, 512 + 20) {
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(1.f, 1.f),
kLow_SkFilterQuality, 0);
DrawDeferredTextureImageData(canvas, "mandrill_512.png", ¶ms, kN32_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_low_dithered, canvas, 180 + 180 + 30, 180 + 20) {
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(0.25f, 0.25f),
kLow_SkFilterQuality, 0);
DrawDeferredTextureImageData(canvas, "dog.jpg", ¶ms, kARGB_4444_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_medium_encoded, canvas, 512 + 512 + 30, 1110) {
sk_sp<SkImage> encodedImage = GetResourceAsImage("mandrill_512.png");
if (!encodedImage) {
SkDebugf("\nCould not load resource.\n");
return;
}
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(0.25f, 0.25f),
kMedium_SkFilterQuality, 0);
DrawDeferredTextureImageMipMapTree(canvas, encodedImage.get(), ¶ms, kN32_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_medium_decoded, canvas, 512 + 512 + 30, 1110) {
SkBitmap bitmap;
if (!GetResourceAsBitmap("mandrill_512.png", &bitmap)) {
SkDebugf("\nCould not decode resource.\n");
return;
}
sk_sp<SkImage> decodedImage = SkImage::MakeFromBitmap(bitmap);
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(0.25f, 0.25f),
kMedium_SkFilterQuality, 0);
DrawDeferredTextureImageMipMapTree(canvas, decodedImage.get(), ¶ms, kN32_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_high, canvas, 512 + 512 + 30, 512 + 20) {
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(1.f, 1.f),
kHigh_SkFilterQuality, 0);
DrawDeferredTextureImageData(canvas, "mandrill_512.png", ¶ms, kN32_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_medium_encoded_indexed, canvas, 128 + 128 + 30, 340) {
sk_sp<SkImage> encodedImage = GetResourceAsImage("color_wheel.gif");
if (!encodedImage) {
SkDebugf("\nCould not load resource.\n");
return;
}
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(0.25f, 0.25f),
kMedium_SkFilterQuality, 0);
DrawDeferredTextureImageMipMapTree(canvas, encodedImage.get(), ¶ms, kN32_SkColorType);
}
DEF_SIMPLE_GM(deferred_texture_image_medium_decoded_indexed, canvas, 128 + 128 + 30, 340) {
SkBitmap bitmap;
if (!GetResourceAsBitmap("color_wheel.gif", &bitmap)) {
SkDebugf("\nCould not decode resource.\n");
return;
}
sk_sp<SkImage> decodedImage = SkImage::MakeFromBitmap(bitmap);
auto params = SkImage::DeferredTextureImageUsageParams(SkMatrix::MakeScale(0.25f, 0.25f),
kMedium_SkFilterQuality, 0);
DrawDeferredTextureImageMipMapTree(canvas, decodedImage.get(), ¶ms, kN32_SkColorType);
}
#endif
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