| /* |
| * 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 "SkTypes.h" |
| |
| |
| #if defined(SK_BUILD_FOR_ANDROID) && __ANDROID_API__ >= 26 |
| #define GL_GLEXT_PROTOTYPES |
| #define EGL_EGLEXT_PROTOTYPES |
| #include "GrAHardwareBufferImageGenerator.h" |
| |
| #include <android/hardware_buffer.h> |
| |
| #include "GrBackendSurface.h" |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrProxyProvider.h" |
| #include "GrResourceCache.h" |
| #include "GrResourceProvider.h" |
| #include "GrTexture.h" |
| #include "GrTextureProxy.h" |
| #include "SkMessageBus.h" |
| |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| #include <GLES/gl.h> |
| #include <GLES/glext.h> |
| |
| #include <cutils/properties.h> |
| |
| // Direct access to private framework and HAL data to workaround Adreno 330 driver bugs. |
| // DO NOT actually call anything from these headers; they are included only to access private |
| // structs. |
| #include "../../../../frameworks/native/libs/nativebase/include/nativebase/nativebase.h" |
| #include "../../../../hardware/qcom/display/libgralloc/gralloc_priv.h" |
| |
| class BufferCleanupHelper { |
| public: |
| BufferCleanupHelper(EGLImageKHR image, EGLDisplay display) |
| : fImage(image) |
| , fDisplay(display) { } |
| ~BufferCleanupHelper() { |
| eglDestroyImageKHR(fDisplay, fImage); |
| } |
| private: |
| EGLImageKHR fImage; |
| EGLDisplay fDisplay; |
| }; |
| |
| std::unique_ptr<SkImageGenerator> GrAHardwareBufferImageGenerator::Make( |
| AHardwareBuffer* graphicBuffer, SkAlphaType alphaType, sk_sp<SkColorSpace> colorSpace) { |
| AHardwareBuffer_Desc bufferDesc; |
| AHardwareBuffer_describe(graphicBuffer, &bufferDesc); |
| SkColorType colorType; |
| switch (bufferDesc.format) { |
| case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM: |
| colorType = kRGBA_8888_SkColorType; |
| break; |
| case AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT: |
| colorType = kRGBA_F16_SkColorType; |
| break; |
| case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM: |
| colorType = kRGB_565_SkColorType; |
| break; |
| default: |
| return nullptr; |
| } |
| SkImageInfo info = SkImageInfo::Make(bufferDesc.width, bufferDesc.height, colorType, |
| alphaType, std::move(colorSpace)); |
| return std::unique_ptr<SkImageGenerator>(new GrAHardwareBufferImageGenerator(info, graphicBuffer, |
| alphaType)); |
| } |
| |
| GrAHardwareBufferImageGenerator::GrAHardwareBufferImageGenerator(const SkImageInfo& info, |
| AHardwareBuffer* graphicBuffer, SkAlphaType alphaType) |
| : INHERITED(info) |
| , fGraphicBuffer(graphicBuffer) { |
| AHardwareBuffer_acquire(fGraphicBuffer); |
| } |
| |
| GrAHardwareBufferImageGenerator::~GrAHardwareBufferImageGenerator() { |
| AHardwareBuffer_release(fGraphicBuffer); |
| this->clear(); |
| } |
| |
| void GrAHardwareBufferImageGenerator::clear() { |
| if (fOriginalTexture) { |
| // Notify the original cache that it can free the last ref, so it happens on the correct |
| // thread. |
| GrGpuResourceFreedMessage msg { fOriginalTexture, fOwningContextID }; |
| SkMessageBus<GrGpuResourceFreedMessage>::Post(msg); |
| fOriginalTexture = nullptr; |
| } |
| } |
| |
| void GrAHardwareBufferImageGenerator::deleteImageTexture(void* context) { |
| BufferCleanupHelper* cleanupHelper = static_cast<BufferCleanupHelper*>(context); |
| delete cleanupHelper; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #if SK_SUPPORT_GPU |
| |
| sk_sp<GrTextureProxy> GrAHardwareBufferImageGenerator::onGenerateTexture( |
| GrContext* context, const SkImageInfo& info, const SkIPoint& origin, |
| SkTransferFunctionBehavior, bool willNeedMipMaps) { |
| auto proxy = this->makeProxy(context); |
| if (!proxy) { |
| return nullptr; |
| } |
| |
| bool makingASubset = true; |
| if (0 == origin.fX && 0 == origin.fY && |
| info.width() == getInfo().width() && info.height() == getInfo().height()) { |
| makingASubset = false; |
| if (!willNeedMipMaps || GrMipMapped::kYes == proxy->mipMapped()) { |
| // If the caller wants the full texture and we have the correct mip support, we're done |
| return proxy; |
| } |
| } |
| // Otherwise, make a copy for the requested subset or for mip maps. |
| SkIRect subset = SkIRect::MakeXYWH(origin.fX, origin.fY, info.width(), info.height()); |
| |
| GrMipMapped mipMapped = willNeedMipMaps ? GrMipMapped::kYes : GrMipMapped::kNo; |
| |
| sk_sp<GrTextureProxy> texProxy = GrSurfaceProxy::Copy(context, proxy.get(), mipMapped, |
| subset, SkBudgeted::kYes); |
| if (!makingASubset && texProxy) { |
| // We are in this case if we wanted the full texture, but we will be mip mapping the |
| // texture. Therefore we want to update the cached texture so that we point to the |
| // mipped version instead of the old one. |
| SkASSERT(willNeedMipMaps); |
| SkASSERT(GrMipMapped::kYes == texProxy->mipMapped()); |
| |
| // The only way we should get into here is if we just made a new texture in makeProxy or |
| // we found a cached texture in the same context. Thus the current and cached contexts |
| // should match. |
| SkASSERT(context->uniqueID() == fOwningContextID); |
| |
| // Clear out the old cached texture. |
| this->clear(); |
| |
| // We need to get the actual GrTexture so force instantiation of the GrTextureProxy |
| texProxy->instantiate(context->contextPriv().resourceProvider()); |
| GrTexture* texture = texProxy->priv().peekTexture(); |
| SkASSERT(texture); |
| fOriginalTexture = texture; |
| } |
| return texProxy; |
| } |
| #endif |
| |
| namespace { |
| |
| sk_sp<GrTexture> createGLTextureFromPrivateHandle(GrContext* context, |
| const SkImageInfo& info, const AHardwareBuffer* hardware_buffer) { |
| |
| if (!hardware_buffer) { |
| SkDebugf("createGLTextureFromPrivateHandle: Cannot work without AHardwareBuffer"); |
| return nullptr; |
| } |
| |
| GrPixelConfig pixelConfig = kUnknown_GrPixelConfig; |
| size_t bytesPerPixel = 0; |
| GrGLenum format = GL_INVALID_ENUM; |
| GrGLenum type = GL_INVALID_ENUM; |
| switch (info.colorType()) { |
| case kRGBA_8888_SkColorType: |
| pixelConfig = kRGBA_8888_GrPixelConfig; |
| bytesPerPixel = 4; |
| format = GL_RGBA; |
| type = GL_UNSIGNED_BYTE; |
| break; |
| case kRGB_565_SkColorType: |
| pixelConfig = kRGB_565_GrPixelConfig; |
| bytesPerPixel = 2; |
| format = GL_RGB; |
| type = GL_UNSIGNED_SHORT_5_6_5; |
| break; |
| default: |
| SkDebugf("createGLTextureFromPrivateHandle: Unsupported color type %i", int(info.colorType())); |
| return nullptr; |
| } |
| |
| EGLClientBuffer clientBuffer = eglGetNativeClientBufferANDROID(hardware_buffer); |
| const native_handle_t* native_handle = reinterpret_cast<const ANativeWindowBuffer*>(clientBuffer)->handle; |
| const bool handleIsAsExpected = private_handle_t::validate(native_handle) == 0; |
| if (!handleIsAsExpected) { |
| SkDebugf("createGLTextureFromPrivateHandle: GraphicBuffer doesn't seem to map to gralloc private handle."); |
| return nullptr; |
| } |
| const private_handle_t* hnd = static_cast<const private_handle_t*>(native_handle); |
| |
| const int imageWidth = info.width(); |
| const int imageHeight = info.height(); |
| const int bufferWidth = hnd->width; // May be aligned and be larger than the actual image. |
| const int bufferHeight = hnd->height; |
| if (imageWidth > bufferWidth || imageHeight > bufferHeight) { |
| SkDebugf("createGLTextureFromPrivateHandle: image is larger than the buffer. This is not supposed to happen."); |
| return nullptr; |
| } |
| const size_t bufferRowBytes = bufferWidth * bytesPerPixel; |
| // We access as many rows as the image has, aligned to the width of the buffer. |
| const size_t minBufferSize = bufferRowBytes * imageHeight; |
| if (hnd->size < 0 || static_cast<size_t>(hnd->size) < minBufferSize) { |
| SkDebugf("createGLTextureFromPrivateHandle: buffer is smaller than expected or invalid."); |
| return nullptr; |
| } |
| |
| const char* bufferData = reinterpret_cast<const char*>(hnd->base); |
| |
| GrGLuint texID; |
| glGenTextures(1, &texID); |
| glBindTexture(GL_TEXTURE_2D, texID); |
| |
| if (imageWidth == bufferWidth) { |
| // Take the quick path if possible |
| glTexImage2D(GL_TEXTURE_2D, 0, format, imageWidth, imageHeight, 0, format, type, bufferData); |
| } else { |
| // The buffer has some extra space for alignment. Copy row by row. |
| // First allocate the texture storage without filling it. |
| glTexImage2D(GL_TEXTURE_2D, 0, format, imageWidth, imageHeight, 0, format, type, 0); |
| for (int y = 0; y < imageHeight; ++y) { |
| const void* bufferRowAddr = bufferData + static_cast<size_t>(y) * bufferRowBytes; |
| glTexSubImage2D(GL_TEXTURE_2D, 0, 0, y, imageWidth, 1, format, type, bufferRowAddr); |
| } |
| } |
| int gl_error; |
| bool has_gl_error = false; |
| while (GL_NO_ERROR != (gl_error = glGetError())) { |
| SkDebugf("createGLTextureFromPrivateHandle: glGetError reports %i", gl_error); |
| has_gl_error = true; |
| } |
| if (has_gl_error) { |
| SkDebugf("createGLTextureFromPrivateHandle: discarding results, because we had GL errors."); |
| glDeleteTextures(1, &texID); |
| return nullptr; |
| } |
| |
| GrGLTextureInfo textureInfo; |
| textureInfo.fTarget = GL_TEXTURE_2D; |
| textureInfo.fID = texID; |
| |
| GrBackendTexture backendTex(imageWidth, imageHeight, pixelConfig, textureInfo); |
| if (backendTex.width() <= 0 || backendTex.height() <= 0) { |
| SkDebugf("createGLTextureFromPrivateHandle: Failed at GrBackendTexture initialization."); |
| glDeleteTextures(1, &texID); |
| return nullptr; |
| } |
| sk_sp<GrTexture> tex = context->contextPriv().resourceProvider()->wrapBackendTexture( |
| backendTex, kAdopt_GrWrapOwnership); |
| if (!tex) { |
| SkDebugf("createGLTextureFromPrivateHandle: Failed at wrapBackendTexture()"); |
| glDeleteTextures(1, &texID); |
| return nullptr; |
| } |
| // Compared to the regular code, we don't need a release helper: We gave up ownership of the GL |
| // texture and don't create any other resources (like the EGLImage). |
| |
| return tex; |
| } |
| |
| sk_sp<GrTexture> createNativeBufferTexture(GrContext* context, const SkImageInfo& info, |
| const AHardwareBuffer* fGraphicBuffer, void(*deleteImageTexture)(void*)) { |
| |
| EGLClientBuffer clientBuffer = eglGetNativeClientBufferANDROID(fGraphicBuffer); |
| EGLint attribs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, |
| EGL_NONE }; |
| EGLDisplay display = eglGetCurrentDisplay(); |
| EGLImageKHR image = eglCreateImageKHR(display, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, |
| clientBuffer, attribs); |
| if (EGL_NO_IMAGE_KHR == image) { |
| SkDebugf("Could not create EGL image, err = (%#x)", (int) eglGetError() ); |
| return nullptr; |
| } |
| GrGLuint texID; |
| glGenTextures(1, &texID); |
| if (!texID) { |
| eglDestroyImageKHR(display, image); |
| return nullptr; |
| } |
| glBindTexture(GL_TEXTURE_EXTERNAL_OES, texID); |
| GLenum status = GL_NO_ERROR; |
| if ((status = glGetError()) != GL_NO_ERROR) { |
| SkDebugf("glBindTexture failed (%#x)", (int) status); |
| glDeleteTextures(1, &texID); |
| eglDestroyImageKHR(display, image); |
| return nullptr; |
| } |
| glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, image); |
| if ((status = glGetError()) != GL_NO_ERROR) { |
| SkDebugf("glEGLImageTargetTexture2DOES failed (%#x)", (int) status); |
| glDeleteTextures(1, &texID); |
| eglDestroyImageKHR(display, image); |
| return nullptr; |
| } |
| context->resetContext(kTextureBinding_GrGLBackendState); |
| |
| GrGLTextureInfo textureInfo; |
| textureInfo.fTarget = GL_TEXTURE_EXTERNAL_OES; |
| textureInfo.fID = texID; |
| |
| GrPixelConfig pixelConfig; |
| switch (info.colorType()) { |
| case kRGBA_8888_SkColorType: |
| pixelConfig = kRGBA_8888_GrPixelConfig; |
| break; |
| case kRGBA_F16_SkColorType: |
| pixelConfig = kRGBA_half_GrPixelConfig; |
| break; |
| case kRGB_565_SkColorType: |
| pixelConfig = kRGB_565_GrPixelConfig; |
| break; |
| default: |
| glDeleteTextures(1, &texID); |
| eglDestroyImageKHR(display, image); |
| return nullptr; |
| } |
| |
| GrBackendTexture backendTex(info.width(), info.height(), pixelConfig, textureInfo); |
| if (backendTex.width() <= 0 || backendTex.height() <= 0) { |
| glDeleteTextures(1, &texID); |
| eglDestroyImageKHR(display, image); |
| return nullptr; |
| } |
| sk_sp<GrTexture> tex = context->contextPriv().resourceProvider()->wrapBackendTexture( |
| backendTex, kAdopt_GrWrapOwnership); |
| if (!tex) { |
| glDeleteTextures(1, &texID); |
| eglDestroyImageKHR(display, image); |
| return nullptr; |
| } |
| sk_sp<GrReleaseProcHelper> releaseHelper( |
| new GrReleaseProcHelper(deleteImageTexture, new BufferCleanupHelper(image, display))); |
| |
| tex->setRelease(std::move(releaseHelper)); |
| |
| return tex; |
| } |
| |
| } // anonymous namespace |
| |
| sk_sp<GrTextureProxy> GrAHardwareBufferImageGenerator::makeProxy(GrContext* context) { |
| if (context->abandoned() || kOpenGL_GrBackend != context->contextPriv().getBackend()) { |
| // Check if GrContext is not abandoned and the backend is GL. |
| return nullptr; |
| } |
| |
| auto proxyProvider = context->contextPriv().proxyProvider(); |
| |
| // return a cached GrTexture if invoked with the same context |
| if (fOriginalTexture && fOwningContextID == context->uniqueID()) { |
| return proxyProvider->createWrapped(sk_ref_sp(fOriginalTexture), |
| kTopLeft_GrSurfaceOrigin); |
| } |
| |
| while (GL_NO_ERROR != glGetError()) {} //clear GL errors |
| |
| // On Adreno 330 drivers sampling from EGLImage bound to GL_TEXTURE_EXTERNAL_OES texture targets |
| // leads to artifacts. Copy image data into a regular GL texture instead. |
| static const bool gl_tex_workaround_enabled = |
| [] () -> bool { |
| const int value = property_get_bool("skia.force_gl_texture", 0); |
| SkDebugf("GrAHardwareBufferImageGenerator::makeProxy skia.force_gl_texture=%i", value); |
| return bool(value); |
| }(); |
| |
| sk_sp<GrTexture> tex; |
| if (gl_tex_workaround_enabled) { |
| tex = createGLTextureFromPrivateHandle(context, getInfo(), fGraphicBuffer); |
| } |
| |
| if (!tex) { |
| // The workaround is disabled or failed. Fall back to regular, native buffer access. |
| tex = createNativeBufferTexture(context, getInfo(), fGraphicBuffer, &deleteImageTexture); |
| } |
| |
| if (!tex) { |
| return nullptr; |
| } |
| |
| // We fail this assert, if the context has changed. This will be fully handled after |
| // skbug.com/6812 is ready. |
| SkASSERT(!fOriginalTexture); |
| |
| this->clear(); |
| fOriginalTexture = tex.get(); |
| fOwningContextID = context->uniqueID(); |
| // Attach our texture to this context's resource cache. This ensures that deletion will happen |
| // in the correct thread/context. This adds the only ref to the texture that will persist from |
| // this point. To trigger GrTexture deletion a message is sent by generator dtor or by |
| // makeProxy when it is invoked with a different context. |
| //TODO: GrResourceCache should delete GrTexture, when GrContext is deleted. Currently |
| //TODO: SkMessageBus ignores messages for deleted contexts and GrTexture will leak. |
| context->contextPriv().getResourceCache()->insertCrossContextGpuResource(fOriginalTexture); |
| return proxyProvider->createWrapped(std::move(tex), kTopLeft_GrSurfaceOrigin); |
| } |
| |
| bool GrAHardwareBufferImageGenerator::onIsValid(GrContext* context) const { |
| if (nullptr == context) { |
| return false; //CPU backend is not supported, because hardware buffer can be swizzled |
| } |
| // TODO: add Vulkan support |
| return kOpenGL_GrBackend == context->contextPriv().getBackend(); |
| } |
| |
| #endif //SK_BUILD_FOR_ANDROID_FRAMEWORK |