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Optimize atomic rendering for input attachments
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Pack clip data into an RGBA8 attachment and turn on src-over blending for both color and clip.

Handle advanced blend modes by rearranging the math such that the correct color isn't reached until *AFTER* the hardware blend state is applied.

This allows us to preserve clip and color contents by just emitting a=0 instead of loading the current value. It also saves flops by offloading the blending work onto the ROP blending unit, and serves as a hint to the hardware that it doesn't need to read or write anything when a == 0.

Diffs=
1b5e50fce Optimize atomic rendering for input attachments (#8310)
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csmartdalton committed Oct 11, 2024
1 parent f1c444b commit b37d62f
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2 changes: 1 addition & 1 deletion .rive_head
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2 changes: 1 addition & 1 deletion submodules/rive-runtime
Submodule rive-runtime updated 36 files
+1 −1 .rive_head
+4 −5 renderer/include/rive/renderer/gpu.hpp
+1 −1 renderer/include/rive/renderer/vulkan/render_context_vulkan_impl.hpp
+1 −0 renderer/include/rive/renderer/vulkan/vulkan_context.hpp
+6 −2 renderer/path_fiddle/fiddle_context_vulkan.cpp
+2 −0 renderer/rive_vk_bootstrap/include/rive_vk_bootstrap/rive_vk_bootstrap.hpp
+3 −1 renderer/rive_vk_bootstrap/rive_vk_bootstrap.cpp
+3 −3 renderer/src/d3d/render_context_d3d_impl.cpp
+0 −1 renderer/src/draw.cpp
+1 −1 renderer/src/gl/pls_impl_rw_texture.cpp
+2 −2 renderer/src/gl/render_context_gl_impl.cpp
+1 −1 renderer/src/gpu.cpp
+1 −1 renderer/src/metal/background_shader_compiler.mm
+6 −10 renderer/src/metal/render_context_metal_impl.mm
+1 −1 renderer/src/render_context.cpp
+8 −8 renderer/src/shaders/Makefile
+82 −49 renderer/src/shaders/advanced_blend.glsl
+294 −238 renderer/src/shaders/atomic_draw.glsl
+20 −5 renderer/src/shaders/common.glsl
+6 −5 renderer/src/shaders/constants.glsl
+7 −3 renderer/src/shaders/glsl.glsl
+4 −1 renderer/src/shaders/hlsl.glsl
+4 −1 renderer/src/shaders/metal.glsl
+1 −0 renderer/src/shaders/spirv/atomic_base.glsl
+165 −102 renderer/src/vulkan/render_context_vulkan_impl.cpp
+2 −1 tests/common/testing_gl_renderer.cpp
+1 −1 tests/common/testing_gl_renderer.hpp
+1 −1 tests/common/testing_window.cpp
+3 −2 tests/common/testing_window.hpp
+13 −6 tests/common/testing_window_android_vulkan.cpp
+3 −1 tests/common/testing_window_coregraphics.cpp
+4 −2 tests/common/testing_window_egl.cpp
+4 −1 tests/common/testing_window_fiddle_context.cpp
+4 −1 tests/common/testing_window_metal_texture.mm
+6 −1 tests/common/testing_window_vulkan_texture.cpp
+31 −11 tests/player/player.cpp

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