void GrGLTexture::uploadTextureData(int x,
int y,
int width,
int height,
const void* srcData) {
GPUGL->setSpareTextureUnit();
// glCompressedTexSubImage2D doesn't support any formats
// (at least without extensions)
GrAssert(fUploadFormat != GR_GL_PALETTE8_RGBA8);
// If we need to update textures that are created upside down
// then we have to modify this code to flip the srcData
GrAssert(kTopDown_Orientation == fOrientation);
GR_GL(BindTexture(GR_GL_TEXTURE_2D, fTexIDObj->id()));
GR_GL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, fUploadByteCount));
GR_GL(TexSubImage2D(GR_GL_TEXTURE_2D, 0, x, y, width, height,
fUploadFormat, fUploadType, srcData));
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(EGLImageTest, reporter, context0, glCtx0) {
// 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().glslCaps()->externalTextureSupport()) {
return;
}
SkAutoTDelete<SkGLContext> glCtx1 = glCtx0->createNew();
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, 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, 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, context1, backendTexture1, image);
return;
}
if (GR_GL_TEXTURE_2D != backendTexture1->fTarget) {
ERRORF(reporter, "Expected backend texture to be 2D");
cleanup(glCtx0, externalTexture.fID, glCtx1, 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, 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);
SkAutoTUnref<GrTexture> externalTextureObj(
context0->textureProvider()->wrapBackendTexture(externalDesc));
if (!externalTextureObj) {
ERRORF(reporter, "Error wrapping external texture in GrTexture.");
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
return;
}
// Should not be able to wrap as a RT
externalDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
SkAutoTUnref<GrTexture> externalTextureRTObj(
context0->textureProvider()->wrapBackendTexture(externalDesc));
if (externalTextureRTObj) {
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;
SkAutoTUnref<GrTexture> externalTextureMSAAObj(
context0->textureProvider()->wrapBackendTexture(externalDesc));
if (externalTextureMSAAObj) {
ERRORF(reporter, "Should not be able to wrap an EXTERNAL texture with MSAA.");
}
externalDesc.fSampleCnt = 0;
test_read_pixels(reporter, context0, externalTextureObj, pixels.get());
test_write_pixels(reporter, context0, externalTextureObj);
test_copy_surface(reporter, context0, externalTextureObj, pixels.get());
cleanup(glCtx0, externalTexture.fID, glCtx1, context1, backendTexture1, image);
}