gl_shader_manager: Fix interaction between graphics and compute

After a compute shader was set to the pipeline, no graphics shader was
invoked again. To address this use glUseProgram to bind compute shaders
(without state tracking) and call glUseProgram(0) when transitioning out
of it back to the graphics pipeline.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 55324e6d5..4e4138573 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -565,7 +565,7 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
     bind_ubo_pushbuffer.Bind();
     bind_ssbo_pushbuffer.Bind();
 
-    program_manager.Update();
+    program_manager.BindGraphicsPipeline();
 
     if (texture_cache.TextureBarrier()) {
         glTextureBarrier();
@@ -627,8 +627,7 @@ void RasterizerOpenGL::DispatchCompute(GPUVAddr code_addr) {
     const ProgramVariant variant(launch_desc.block_dim_x, launch_desc.block_dim_y,
                                  launch_desc.block_dim_z, launch_desc.shared_alloc,
                                  launch_desc.local_pos_alloc);
-    glUseProgramStages(program_manager.GetHandle(), GL_COMPUTE_SHADER_BIT,
-                       kernel->GetHandle(variant));
+    program_manager.BindComputeShader(kernel->GetHandle(variant));
 
     const std::size_t buffer_size =
         Tegra::Engines::KeplerCompute::NumConstBuffers *