From 87055dc71b0d50cd25660969b55cda7d44af6a12 Mon Sep 17 00:00:00 2001 From: Jeroen Bakker Date: Wed, 26 May 2021 16:49:17 +0200 Subject: GPU: Compute Pipeline. With the compute pipeline calculation can be offloaded to the GPU. This patch only adds the framework for compute. So no changes for users at this moment. NOTE: As this is an OpenGL4.3 feature it must always have a fallback. Use `GPU_compute_shader_support` to check if compute pipeline can be used. Check `gpu_shader_compute*` test cases for usage. This patch also adds support for shader storage buffer objects and device only vertex/index buffers. An alternative that had been discussed was adding this to the `GPUBatch`, this was eventually not chosen as it would lead to more code when used as part of a shading group. The idea is that we add an `eDRWCommandType` in the near future. Reviewed By: fclem Differential Revision: https://developer.blender.org/D10913 --- source/blender/gpu/opengl/gl_shader.hh | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'source/blender/gpu/opengl/gl_shader.hh') diff --git a/source/blender/gpu/opengl/gl_shader.hh b/source/blender/gpu/opengl/gl_shader.hh index 152eb2f068a..48aaaf2283d 100644 --- a/source/blender/gpu/opengl/gl_shader.hh +++ b/source/blender/gpu/opengl/gl_shader.hh @@ -43,6 +43,7 @@ class GLShader : public Shader { GLuint vert_shader_ = 0; GLuint geom_shader_ = 0; GLuint frag_shader_ = 0; + GLuint compute_shader_ = 0; /** True if any shader failed to compile. */ bool compilation_failed_ = false; @@ -56,6 +57,7 @@ class GLShader : public Shader { void vertex_shader_from_glsl(MutableSpan sources) override; void geometry_shader_from_glsl(MutableSpan sources) override; void fragment_shader_from_glsl(MutableSpan sources) override; + void compute_shader_from_glsl(MutableSpan sources) override; bool finalize(void) override; void transform_feedback_names_set(Span name_list, @@ -75,7 +77,7 @@ class GLShader : public Shader { int program_handle_get(void) const override; private: - char *glsl_patch_get(void); + char *glsl_patch_get(GLenum gl_stage); GLuint create_shader_stage(GLenum gl_stage, MutableSpan sources); -- cgit v1.2.3