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Adds UAV support for D3D12, Vulkan and reworked for OpenGL, D3D11 (#2119)

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* Adds UAV support for D3D12, Vulkan and reworked support for OpenGL, D3D11

UAV support is now uniform across compute and draw.
To set a UAV you just use bgfx::setImage() and IMAGE2D in the shader, just like in compute.
Due to these changes shaders will have to be recompiled.

The changes include:
	- D3D11 requires patching of the UAV slot number (which is now done by modifying the DXBC instead of using a macro)
	- If the DXBC binary includes a debug chunk, that is also patched to match the new slot number
	- All the other renderers don't need any kind of patching
	- There are some shader annotations to better convert the UAV format used in hlsl to spirv

Possibility of further enhancements:
	- bgfx::setViewFrameBuffer() only supports binding to a framebuffer or, using BGFX_INVALID_HANDLE, to bind the default backbuffer. This doesn't allow for the case where there is no need to bind to either one of them, for example when using a fragment shader only to read and write to an UAV.

* Bump shader version, because they need to be recompiled.
This commit is contained in:
kingscallop
2020-10-05 05:51:41 +01:00
committed by GitHub
parent 32aa281147
commit 436b7fab9e
22 changed files with 587 additions and 259 deletions
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4
tools/shaderc/shaderc.cpp
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@@ -13,13 +13,13 @@ extern "C"
#include <fpp.h>
} // extern "C"
#define BGFX_SHADER_BIN_VERSION 8
#define BGFX_SHADER_BIN_VERSION 9
#define BGFX_CHUNK_MAGIC_CSH BX_MAKEFOURCC('C', 'S', 'H', BGFX_SHADER_BIN_VERSION)
#define BGFX_CHUNK_MAGIC_FSH BX_MAKEFOURCC('F', 'S', 'H', BGFX_SHADER_BIN_VERSION)
#define BGFX_CHUNK_MAGIC_VSH BX_MAKEFOURCC('V', 'S', 'H', BGFX_SHADER_BIN_VERSION)
#define BGFX_SHADERC_VERSION_MAJOR 1
#define BGFX_SHADERC_VERSION_MINOR 16
#define BGFX_SHADERC_VERSION_MINOR 17
namespace bgfx
{

2
tools/shaderc/shaderc_spirv.cpp
View File

@@ -1023,7 +1023,7 @@ namespace bgfx { namespace spirv
}
}
// Loop through the separate_images, and extract the uniform names:
// Loop through the storage_images, and extract the uniform names:
for (auto &resource : resourcesrefl.storage_images)
{
std::string name = refl.get_name(resource.id);