sk_sp<GrTexture> GrMockGpu::onWrapBackendTexture(const GrBackendTexture& tex,
GrWrapOwnership ownership,
GrWrapCacheable wrapType, GrIOType ioType) {
GrSurfaceDesc desc;
desc.fWidth = tex.width();
desc.fHeight = tex.height();
GrMockTextureInfo info;
SkAssertResult(tex.getMockTextureInfo(&info));
desc.fConfig = info.fConfig;
GrMipMapsStatus mipMapsStatus = tex.hasMipMaps() ? GrMipMapsStatus::kValid
: GrMipMapsStatus::kNotAllocated;
return sk_sp<GrTexture>(new GrMockTexture(this, desc, mipMapsStatus, info, wrapType, ioType));
}
sk_sp<GrTexture> GrGpu::wrapBackendTexture(const GrBackendTexture& backendTex,
GrWrapOwnership ownership) {
this->handleDirtyContext();
if (!this->caps()->isConfigTexturable(backendTex.config())) {
return nullptr;
}
if (backendTex.width() > this->caps()->maxTextureSize() ||
backendTex.height() > this->caps()->maxTextureSize()) {
return nullptr;
}
sk_sp<GrTexture> tex = this->onWrapBackendTexture(backendTex, ownership);
if (tex && !backendTex.hasMipMaps()) {
// Ganesh will not ever allocate mipmaps for a wrapped resource. By setting this flag here,
// it will be propagated to any proxy that wraps this texture.
tex->texturePriv().setDoesNotSupportMipMaps();
}
return tex;
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ReimportImageTextureWithMipLevels, reporter, ctxInfo) {
auto* ctx = ctxInfo.grContext();
if (!ctx->priv().caps()->mipMapSupport()) {
return;
}
static constexpr auto kCreateWithMipMaps = true;
auto surf = SkSurface::MakeRenderTarget(
ctx, SkBudgeted::kYes,
SkImageInfo::Make(100, 100, kRGBA_8888_SkColorType, kPremul_SkAlphaType), 1,
kTopLeft_GrSurfaceOrigin, nullptr, kCreateWithMipMaps);
if (!surf) {
return;
}
surf->getCanvas()->drawColor(SK_ColorDKGRAY);
auto img = surf->makeImageSnapshot();
if (!img) {
return;
}
surf.reset();
GrBackendTexture btex;
SkImage::BackendTextureReleaseProc texRelease;
if (!SkImage::MakeBackendTextureFromSkImage(ctx, std::move(img), &btex, &texRelease)) {
// Not all backends support stealing textures yet.
// ERRORF(reporter, "Could not turn image into texture");
return;
}
REPORTER_ASSERT(reporter, btex.hasMipMaps());
// Reimport the texture as an image and perform a downsampling draw with medium quality which
// should use the upper MIP levels.
img = SkImage::MakeFromTexture(ctx, btex, kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
kPremul_SkAlphaType, nullptr);
const auto singlePixelInfo =
SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kPremul_SkAlphaType, nullptr);
surf = SkSurface::MakeRenderTarget(ctx, SkBudgeted::kYes, singlePixelInfo, 1,
kTopLeft_GrSurfaceOrigin, nullptr);
SkPaint paint;
paint.setFilterQuality(kMedium_SkFilterQuality);
surf->getCanvas()->drawImageRect(img, SkRect::MakeWH(1, 1), &paint);
uint32_t pixel;
surf->readPixels(singlePixelInfo, &pixel, sizeof(uint32_t), 0, 0);
REPORTER_ASSERT(reporter, pixel == SkPreMultiplyColor(SK_ColorDKGRAY));
img.reset();
texRelease(btex);
}
sk_sp<GrTexture> GrMockGpu::onWrapRenderableBackendTexture(const GrBackendTexture& tex,
int sampleCnt,
GrWrapOwnership ownership) {
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = tex.width();
desc.fHeight = tex.height();
GrMockTextureInfo texInfo;
SkAssertResult(tex.getMockTextureInfo(&texInfo));
desc.fConfig = texInfo.fConfig;
GrMipMapsStatus mipMapsStatus =
tex.hasMipMaps() ? GrMipMapsStatus::kValid : GrMipMapsStatus::kNotAllocated;
GrMockRenderTargetInfo rtInfo;
rtInfo.fConfig = texInfo.fConfig;
// The client gave us the texture ID but we supply the render target ID.
rtInfo.fID = NextInternalRenderTargetID();
return sk_sp<GrTexture>(
new GrMockTextureRenderTarget(this, desc, mipMapsStatus, texInfo, rtInfo));
}
sk_sp<GrTexture> GrGpu::wrapRenderableBackendTexture(const GrBackendTexture& backendTex,
int sampleCnt, GrWrapOwnership ownership) {
this->handleDirtyContext();
if (sampleCnt < 1) {
return nullptr;
}
if (!this->caps()->isConfigTexturable(backendTex.config()) ||
!this->caps()->getRenderTargetSampleCount(sampleCnt, backendTex.config())) {
return nullptr;
}
if (backendTex.width() > this->caps()->maxRenderTargetSize() ||
backendTex.height() > this->caps()->maxRenderTargetSize()) {
return nullptr;
}
sk_sp<GrTexture> tex = this->onWrapRenderableBackendTexture(backendTex, sampleCnt, ownership);
if (tex && !backendTex.hasMipMaps()) {
// Ganesh will not ever allocate mipmaps for a wrapped resource. By setting this flag here,
// it will be propagated to any proxy that wraps this texture.
tex->texturePriv().setDoesNotSupportMipMaps();
}
SkASSERT(!tex || tex->asRenderTarget());
return tex;
}
