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Implement dual-source blending in shader

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For some GLES drivers that don't support dual-source blending, but do
support GL_EXT_shader_framebuffer_fetch, this might be useful.
This commit is contained in:
Jonathan Hamilton
2017-10-25 22:44:39 -07:00
parent 11976526d1
commit 29a9ed043b
12 changed files with 222 additions and 41 deletions
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8
Source/Core/VideoCommon/PixelShaderGen.h
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@ -44,7 +44,13 @@ struct pixel_shader_uid_data
u32 rgba6_format : 1;
u32 dither : 1;
u32 uint_output : 1;
u32 pad : 15;
u32 blend_enable : 1; // Only used with shader_framebuffer_fetch blend
u32 blend_src_factor : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_src_factor_alpha : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_dst_factor : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_dst_factor_alpha : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_subtract : 1; // Only used with shader_framebuffer_fetch blend
u32 blend_subtract_alpha : 1; // Only used with shader_framebuffer_fetch blend
u32 texMtxInfo_n_projection : 8; // 8x1 bit
u32 tevindref_bi0 : 3;