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Hash : 20ddb802
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Date : 2021-10-28T11:01:12
Fix Blitting in Metal backend. The Metal backend was clipping in integer space. If the src and dst are not the same size, say src is 3 wide and dst is 4 wide, and src starts at -1, then src will be clipped by one making the src 2 wide. It got 1/3 smaller so the dst get 1/3 smaller making it 2.666 pixels wide. The dst then needs to be expanded to pixels so 3 wide. But, that means the src also needs to be expanded 0.3333 * 3(originalSrcWidth) / 4(originalDstWidth) so its new left edge is -0.245 which is not an integer. Bug: angleproject:6598 Change-Id: I2faa966b18b457f474a3e7f6844ef64bfa66dbe8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3251683 Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Kyle Piddington <kpiddington@apple.com> Commit-Queue: Gregg Tavares <gman@chromium.org>
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Files
- BufferImpl.cpp
- BufferImpl.h
- BufferImpl_mock.h
- CLCommandQueueImpl.cpp
- CLCommandQueueImpl.h
- CLContextImpl.cpp
- CLContextImpl.h
- CLDeviceImpl.cpp
- CLDeviceImpl.h
- CLEventImpl.cpp
- CLEventImpl.h
- CLExtensions.cpp
- CLExtensions.h
- CLKernelImpl.cpp
- CLKernelImpl.h
- CLMemoryImpl.cpp
- CLMemoryImpl.h
- CLPlatformImpl.cpp
- CLPlatformImpl.h
- CLProgramImpl.cpp
- CLProgramImpl.h
- CLSamplerImpl.cpp
- CLSamplerImpl.h
- CLtypes.h
- CompilerImpl.h
- ContextImpl.cpp
- ContextImpl.h
- DeviceImpl.cpp
- DeviceImpl.h
- DisplayImpl.cpp
- DisplayImpl.h
- EGLImplFactory.h
- EGLReusableSync.cpp
- EGLReusableSync.h
- EGLSyncImpl.cpp
- EGLSyncImpl.h
- FenceNVImpl.h
- Format.h
- FormatID_autogen.h
- Format_table_autogen.cpp
- FramebufferAttachmentObjectImpl.h
- FramebufferImpl.h
- FramebufferImpl_mock.h
- GLImplFactory.h
- ImageImpl.h
- ImageImpl_mock.h
- MemoryObjectImpl.h
- OverlayImpl.h
- ProgramImpl.h
- ProgramImpl_mock.h
- ProgramPipelineImpl.cpp
- ProgramPipelineImpl.h
- QueryImpl.cpp
- QueryImpl.h
- README.md
- RenderTargetCache.h
- RenderbufferImpl.h
- RenderbufferImpl_mock.h
- SamplerImpl.h
- SemaphoreImpl.h
- ShaderImpl.cpp
- ShaderImpl.h
- StreamProducerImpl.h
- SurfaceImpl.cpp
- SurfaceImpl.h
- SyncImpl.h
- TextureImpl.cpp
- TextureImpl.h
- TextureImpl_mock.h
- TransformFeedbackImpl.h
- TransformFeedbackImpl_mock.h
- VertexArrayImpl.h
- angle_format.py
- angle_format_data.json
- angle_format_map.json
- cl/
- copyvertex.h
- copyvertex.inc.h
- d3d/
- d3d_format.cpp
- d3d_format.h
- driver_utils.cpp
- driver_utils.h
- driver_utils_ios.mm
- driver_utils_mac.mm
- dxgi_format_data.json
- dxgi_format_map.h
- dxgi_format_map_autogen.cpp
- dxgi_support_data.json
- dxgi_support_table.h
- dxgi_support_table_autogen.cpp
- gen_angle_format_table.py
- gen_dxgi_format_table.py
- gen_dxgi_support_tables.py
- gen_load_functions_table.py
- gen_load_texture_border_functions_table.py
- gl/
- glslang_wrapper_utils.cpp
- glslang_wrapper_utils.h
- load_functions_data.json
- load_functions_table.h
- load_functions_table_autogen.cpp
- load_texture_border_functions_data.json
- load_texture_border_functions_table.h
- load_texture_border_functions_table_autogen.cpp
- metal/
- null/
- renderer_utils.cpp
- renderer_utils.h
- serial_utils.h
- serial_utils_unittest.cpp
- vulkan/
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README.md
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ANGLE back-ends
This folder contains shared back-end-specific implementation files. The classes and types in
rendererare not specified by GLES. They instead are common to all the various ANGLE implementations.See
renderer_utils.hfor various cross back-end utilties.ANGLE Formats
The ANGLE format class,
angle::Format, works as a union between GLES and all the various back-end formats. It can represent any type of format in ANGLE. e.g. Formats in Vulkan that don’t exist in GLES, or DXGI formats that don’t exist in GLES, or Windows/Android surface configs that don’t exist anywhere else.The
glInternalFormatmember ofangle::Formatrepresents the “closest” GL format for an ANGLE format. For formats that don’t exist in GLES this will not be exactly what the format represents.The back-ends also define their own format tables. See the Vulkan Format table docs and the [D3D11 format table docs][D23D11FormatDocs].
DXGI Format Info
DXGI formats are used in both the GL and D3D11 back-end. Therefore the generated info table lives in this common shared location.
The DXGI info table is generated by
gen_dxgi_format_table.pyand sources data fromdxgi_format_data.json. The main purpose of the table is to convert from a DXGI format to an ANGLE format, where the ANGLE format should have all the necessary information.