Merge pull request #2921 from jroweboy/batch-fix-2

GPU: Add draw for immediate and batch modes

src/video_core/command_processor.cpp

@@ -243,6 +243,15 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
                     ASSERT(!g_state.geometry_pipeline.NeedIndexInput());
                     g_state.geometry_pipeline.Setup(shader_engine);
                     g_state.geometry_pipeline.SubmitVertex(output);
+
+                    // TODO: If drawing after every immediate mode triangle kills performance,
+                    // change it to flush triangles whenever a drawing config register changes
+                    // See: https://github.com/citra-emu/citra/pull/2866#issuecomment-327011550
+                    VideoCore::g_renderer->Rasterizer()->DrawTriangles();
+                    if (g_debug_context) {
+                        g_debug_context->OnEvent(DebugContext::Event::FinishedPrimitiveBatch,
+                                                 nullptr);
+                    }
                 }
             }
         }
@@ -250,16 +259,7 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
     }
 
     case PICA_REG_INDEX(pipeline.gpu_mode):
-        if (regs.pipeline.gpu_mode == PipelineRegs::GPUMode::Configuring) {
-            MICROPROFILE_SCOPE(GPU_Drawing);
-
-            // Draw immediate mode triangles when GPU Mode is set to GPUMode::Configuring
-            VideoCore::g_renderer->Rasterizer()->DrawTriangles();
-
-            if (g_debug_context) {
-                g_debug_context->OnEvent(DebugContext::Event::FinishedPrimitiveBatch, nullptr);
-            }
-        }
+        // This register likely just enables vertex processing and doesn't need any special handling
         break;
 
     case PICA_REG_INDEX_WORKAROUND(pipeline.command_buffer.trigger[0], 0x23c):
@@ -398,6 +398,11 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
                                                       range.second, range.first);
         }
 
+        VideoCore::g_renderer->Rasterizer()->DrawTriangles();
+        if (g_debug_context) {
+            g_debug_context->OnEvent(DebugContext::Event::FinishedPrimitiveBatch, nullptr);
+        }
+
         break;
     }
 
@@ -632,6 +637,6 @@ void ProcessCommandList(const u32* list, u32 size) {
     }
 }
 
-} // namespace
+} // namespace CommandProcessor
 
-} // namespace
+} // namespace Pica