Commit Graph

10 Commits

Author SHA1 Message Date
Zephyron
d8d54c5ccf shader_recompiler: Fix alpha-to-coverage fragment output interface
The Vulkan spec requires fragment shaders to declare an output covering
Location 0, Component 3 (alpha) when alpha-to-coverage is enabled. This change:

- Tracks alpha_to_coverage_enabled through RuntimeInfo from pipeline state
- Forces declaration of frag_color[0] with full RGBA when enabled
- Initializes alpha to 1.0 in shader epilogue if not explicitly written

Signed-off-by: Zephyron <zephyron@citron-emu.org>
2025-10-17 16:07:35 +10:00
Zephyron
2e6bcc9ea6 video_core, shader_recompiler: Improve Princess Peach: Showtime! support and performance
1. Add geometry shader support for Princess Peach: Showtime!:
   - Implement proper EmitInvocationInfo handling for geometry shaders
   - Support input topology vertex counting in all shader backends (GLASM, GLSL, SPIRV)

2. Performance optimizations:
   - Replace InputTopologyVertices switch statement with a constexpr lookup table
   - Pre-calculate vertex counts and shifts to reduce register pressure
   - Eliminate redundant calculations in shader backends

Signed-off-by: Zephyron <zephyron@citron-emu.org>
2025-05-11 16:28:25 +10:00
Kelebek1
5da70f7197 Remove memory allocations in some hot paths 2023-06-22 08:05:10 +01:00
Billy Laws
158a1896ec Implement scaled vertex buffer format emulation
These formats are unsupported by mobile GPUs so they need to be emulated in shaders instead.
2023-06-03 00:05:31 -07:00
FengChen
d4cb0eac87 video_core: Fix legacy to generic location unpaired 2022-09-20 12:03:31 +08:00
Morph
99ceb03a1c general: Convert source file copyright comments over to SPDX
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
2022-04-23 05:55:32 -04:00
ameerj
574a2c4b77 shader_recompiler: Reduce unused includes 2022-03-20 02:25:08 -04:00
ReinUsesLisp
7dafa96ab5 shader: Rework varyings and implement passthrough geometry shaders
Put all varyings into a single std::bitset with helpers to access it.

Implement passthrough geometry shaders using host's.
2021-07-22 21:51:39 -04:00
ReinUsesLisp
374eeda1a3 shader: Properly manage attributes not written from previous stages 2021-07-22 21:51:38 -04:00
ReinUsesLisp
0ffea97e2e shader: Split profile and runtime info headers 2021-07-22 21:51:38 -04:00