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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "TestUtils.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrContextFactory.h"
#include "GrShaderCaps.h"
#include "GrSurfaceContext.h"
#include "gl/GrGLGpu.h"
#include "gl/GrGLUtil.h"
#include "gl/GLTestContext.h"
using sk_gpu_test::GLTestContext;
static void cleanup(GLTestContext* glctx0, GrGLuint texID0, GLTestContext* glctx1, GrContext* grctx1,
const GrGLTextureInfo* grbackendtex1, GrEGLImage image1) {
if (glctx1) {
glctx1->makeCurrent();
if (grctx1) {
if (grbackendtex1) {
GrGLGpu* gpu1 = static_cast<GrGLGpu*>(grctx1->getGpu());
GrBackendObject handle = reinterpret_cast<GrBackendObject>(grbackendtex1);
gpu1->deleteTestingOnlyBackendTexture(handle, false);
}
grctx1->unref();
}
if (GR_EGL_NO_IMAGE != image1) {
glctx1->destroyEGLImage(image1);
}
}
glctx0->makeCurrent();
if (texID0) {
GR_GL_CALL(glctx0->gl(), DeleteTextures(1, &texID0));
}
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(EGLImageTest, reporter, ctxInfo) {
GrContext* context0 = ctxInfo.grContext();
sk_gpu_test::GLTestContext* glCtx0 = ctxInfo.glContext();
// Try to create a second GL context and then check if the contexts have necessary
// extensions to run this test.
if (kGLES_GrGLStandard != glCtx0->gl()->fStandard) {
return;
}
GrGLGpu* gpu0 = static_cast<GrGLGpu*>(context0->getGpu());
if (!gpu0->glCaps().shaderCaps()->externalTextureSupport()) {
return;
}
std::unique_ptr<GLTestContext> glCtx1 = glCtx0->makeNew();
if (!glCtx1) {
return;
}
GrContext* context1 = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)glCtx1->gl());
const GrGLTextureInfo* backendTexture1 = nullptr;
GrEGLImage image = GR_EGL_NO_IMAGE;
GrGLTextureInfo externalTexture;
externalTexture.fID = 0;
if (!context1) {
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
return;
}
if (!glCtx1->gl()->hasExtension("EGL_KHR_image") ||
!glCtx1->gl()->hasExtension("EGL_KHR_gl_texture_2D_image")) {
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
return;
}
///////////////////////////////// CONTEXT 1 ///////////////////////////////////
// Use GL Context 1 to create a texture unknown to GrContext.
context1->flush();
GrGpu* gpu1 = context1->getGpu();
static const int kSize = 100;
backendTexture1 = reinterpret_cast<const GrGLTextureInfo*>(
gpu1->createTestingOnlyBackendTexture(nullptr, kSize, kSize, kRGBA_8888_GrPixelConfig));
if (!backendTexture1 || !backendTexture1->fID) {
ERRORF(reporter, "Error creating texture for EGL Image");
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
return;
}
if (GR_GL_TEXTURE_2D != backendTexture1->fTarget) {
ERRORF(reporter, "Expected backend texture to be 2D");
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
return;
}
// Wrap the texture in an EGLImage
image = glCtx1->texture2DToEGLImage(backendTexture1->fID);
if (GR_EGL_NO_IMAGE == image) {
ERRORF(reporter, "Error creating EGL Image from texture");
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
return;
}
// Populate the texture using GL context 1. Important to use TexSubImage as TexImage orphans
// the EGL image. Also, this must be done after creating the EGLImage as the texture
// contents may not be preserved when the image is created.
SkAutoTMalloc<uint32_t> pixels(kSize * kSize);
for (int i = 0; i < kSize*kSize; ++i) {
pixels.get()[i] = 0xDDAABBCC;
}
GR_GL_CALL(glCtx1->gl(), ActiveTexture(GR_GL_TEXTURE0));
GR_GL_CALL(glCtx1->gl(), BindTexture(backendTexture1->fTarget, backendTexture1->fID));
GR_GL_CALL(glCtx1->gl(), TexSubImage2D(backendTexture1->fTarget, 0, 0, 0, kSize, kSize,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE, pixels.get()));
GR_GL_CALL(glCtx1->gl(), Finish());
// We've been making direct GL calls in GL context 1, let GrContext 1 know its internal
// state is invalid.
context1->resetContext();
///////////////////////////////// CONTEXT 0 ///////////////////////////////////
// Make a new texture ID in GL Context 0 from the EGL Image
glCtx0->makeCurrent();
externalTexture.fTarget = GR_GL_TEXTURE_EXTERNAL;
externalTexture.fID = glCtx0->eglImageToExternalTexture(image);
// Wrap this texture ID in a GrTexture
GrBackendTextureDesc externalDesc;
externalDesc.fConfig = kRGBA_8888_GrPixelConfig;
externalDesc.fWidth = kSize;
externalDesc.fHeight = kSize;
externalDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&externalTexture);
sk_sp<GrSurfaceContext> surfaceContext = context0->contextPriv().makeBackendSurfaceContext(
externalDesc, nullptr);
if (!surfaceContext) {
ERRORF(reporter, "Error wrapping external texture in GrSurfaceContext.");
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
return;
}
// Should not be able to wrap as a RT
{
externalDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
sk_sp<GrSurfaceContext> temp = context0->contextPriv().makeBackendSurfaceContext(
externalDesc, nullptr);
if (temp) {
ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture as a RT.");
}
externalDesc.fFlags = kNone_GrBackendTextureFlag;
}
// Should not be able to wrap with a sample count
{
externalDesc.fSampleCnt = 4;
sk_sp<GrSurfaceContext> temp = context0->contextPriv().makeBackendSurfaceContext(
externalDesc, nullptr);
if (temp) {
ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture with MSAA.");
}
externalDesc.fSampleCnt = 0;
}
test_read_pixels(reporter, surfaceContext.get(), pixels.get(), "EGLImageTest-read");
// We should not be able to write to a EXTERNAL texture
test_write_pixels(reporter, surfaceContext.get(), false, "EGLImageTest-write");
// Only test RT-config
// TODO: why do we always need to draw to copy from an external texture?
test_copy_from_surface(reporter, context0, surfaceContext->asSurfaceProxy(),
pixels.get(), true, "EGLImageTest-copy");
cleanup(glCtx0, externalTexture.fID, glCtx1.get(), context1, backendTexture1, image);
}
#endif
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