chore: collect render target count in render encoder data

src/d3d11/d3d11_context_impl.cpp

@@ -3289,7 +3289,7 @@ template <typename ContextInternalState> class MTLD3D11DeviceContextImplBase : p
 
         renderPassDescriptor->setRenderTargetArrayLength(render_target_array);
 
-        ctx.startRenderPass(std::move(renderPassDescriptor), dsv_planar_flags);
+        ctx.startRenderPass(std::move(renderPassDescriptor), dsv_planar_flags, rtvs.size());
       });
     }
 

src/dxmt/dxmt_context.cpp

@@ -333,13 +333,16 @@ ArgumentEncodingContext::present(Rc<Texture> &texture, CA::MetalDrawable *drawab
 }
 
 RenderEncoderData *
-ArgumentEncodingContext::startRenderPass(Obj<MTL::RenderPassDescriptor> &&descriptor, uint32_t dsv_planar_flags) {
+ArgumentEncodingContext::startRenderPass(
+    Obj<MTL::RenderPassDescriptor> &&descriptor, uint32_t dsv_planar_flags, uint32_t render_target_count
+) {
   assert(!encoder_current);
   auto encoder_info = allocate<RenderEncoderData>();
   encoder_info->type = EncoderType::Render;
   encoder_info->id = nextEncoderId();
   encoder_info->descriptor = std::move(descriptor);
   encoder_info->dsv_planar_flags = dsv_planar_flags;
+  encoder_info->render_target_count = render_target_count;
   encoder_current = encoder_info;
 
   vro_state_.beginEncoder();
@@ -649,7 +652,7 @@ ArgumentEncodingContext::checkEncoderRelation(EncoderData *former, EncoderData *
         clear->type = EncoderType::Null;
         return DXMT_ENCODER_LIST_OP_COALESCE;
       } else {
-        for (unsigned i = 0; i < 8 /* FIXME: optimize constant */; i++) {
+        for (unsigned i = 0; i < render->render_target_count; i++) {
           auto attachment = render->descriptor->colorAttachments()->object(i);
           if (attachment->texture() == clear->texture.ptr() && attachment->loadAction() == MTL::LoadActionLoad) {
             attachment->setLoadAction(MTL::LoadActionClear);

src/dxmt/dxmt_context.hpp

@@ -103,10 +103,9 @@ struct RenderEncoderData : EncoderData {
   CommandList<RenderCommandContext> cmds;
   CommandList<RenderCommandContext> pretess_cmds;
   uint32_t dsv_planar_flags;
+  uint32_t render_target_count = 0;
   bool use_visibility_result = 0;
   bool use_tessellation = 0;
-  bool coalesced_start = 0;
-  bool coalesced_end = 0;
 };
 
 struct ComputeCommandContext {
@@ -117,8 +116,6 @@ struct ComputeCommandContext {
 
 struct ComputeEncoderData : EncoderData {
   CommandList<ComputeCommandContext> cmds;
-  bool coalesced_start;
-  bool coalesced_end;
 };
 
 struct BlitCommandContext {
@@ -463,7 +460,8 @@ class ArgumentEncodingContext {
   );
   void resolveTexture(Rc<Texture> &&src, unsigned srcSlice, Rc<Texture> &&dst, unsigned dstSlice, unsigned dstLevel);
 
-  RenderEncoderData *startRenderPass(Obj<MTL::RenderPassDescriptor> &&descriptor, uint32_t dsv_planar_flags);
+  RenderEncoderData *
+  startRenderPass(Obj<MTL::RenderPassDescriptor> &&descriptor, uint32_t dsv_planar_flags, uint32_t render_target_count);
   EncoderData *startComputePass();
   EncoderData *startBlitPass();