From c67644f1dae45fbcf621ba88bbce822b8637574e Mon Sep 17 00:00:00 2001 From: Ameer J <52414509+ameerj@users.noreply.github.com> Date: Sat, 18 Nov 2023 00:44:05 -0500 Subject: [PATCH] gl_graphics_pipeline: GLASM: Fix transform feedback attribs buffer mode GL_SEPARATE_ATTRIBS only applies when multiple buffers are being used, else GL_INTERLEAVED_ATTRIBS handles the cases for a single buffer with potentially more than one attribute --- src/video_core/renderer_opengl/gl_graphics_pipeline.cpp | 6 +++++- src/video_core/renderer_opengl/gl_graphics_pipeline.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp b/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp index 44a771d65..af0a453ee 100644 --- a/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp +++ b/src/video_core/renderer_opengl/gl_graphics_pipeline.cpp @@ -559,7 +559,9 @@ void GraphicsPipeline::ConfigureImpl(bool is_indexed) { } void GraphicsPipeline::ConfigureTransformFeedbackImpl() const { - glTransformFeedbackAttribsNV(num_xfb_attribs, xfb_attribs.data(), GL_SEPARATE_ATTRIBS); + const GLenum buffer_mode = + num_xfb_buffers_active == 1 ? GL_INTERLEAVED_ATTRIBS : GL_SEPARATE_ATTRIBS; + glTransformFeedbackAttribsNV(num_xfb_attribs, xfb_attribs.data(), buffer_mode); } void GraphicsPipeline::GenerateTransformFeedbackState() { @@ -567,12 +569,14 @@ void GraphicsPipeline::GenerateTransformFeedbackState() { // when this is required. GLint* cursor{xfb_attribs.data()}; + num_xfb_buffers_active = 0; for (size_t feedback = 0; feedback < Maxwell::NumTransformFeedbackBuffers; ++feedback) { const auto& layout = key.xfb_state.layouts[feedback]; UNIMPLEMENTED_IF_MSG(layout.stride != layout.varying_count * 4, "Stride padding"); if (layout.varying_count == 0) { continue; } + num_xfb_buffers_active++; const auto& locations = key.xfb_state.varyings[feedback]; std::optional current_index; diff --git a/src/video_core/renderer_opengl/gl_graphics_pipeline.h b/src/video_core/renderer_opengl/gl_graphics_pipeline.h index 74fc9cc3d..2f70c1ae9 100644 --- a/src/video_core/renderer_opengl/gl_graphics_pipeline.h +++ b/src/video_core/renderer_opengl/gl_graphics_pipeline.h @@ -154,6 +154,7 @@ private: static constexpr std::size_t XFB_ENTRY_STRIDE = 3; GLsizei num_xfb_attribs{}; + u32 num_xfb_buffers_active{}; std::array xfb_attribs{}; std::mutex built_mutex;