Metal: Adding alternative support for GPU_PRIM_TRI_FAN/LINE_LOOP For Metal backend.

- Metal uniform array compatibility in DRW module.
- Guard OpenGL-specific workarounds and flushes behind GPU_type_matches_ex API guard. Add further render boundaries for render paths called outside of the main loop.

Authored by Apple: Michael Parkin-White

Ref: T96261

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D14438

1 files changed, 0 insertions, 26 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_2D_image_rect_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_image_rect_vert.glsl
index 903c602c5d6..11bb311740c 100644
--- a/source/blender/gpu/shaders/gpu_shader_2D_image_rect_vert.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_2D_image_rect_vert.glsl
@@ -16,14 +16,6 @@ void main()
   vec2 uv;
   vec2 co;
 
-#ifdef GPU_METAL
-/* Metal API does not support Triangle fan primitive topology.
- * When this shader is called using Triangle-Strip, vertex ID's
- * are in a different order. */
-#  define GPU_PRIM_TRI_STRIP
-#endif
-
-#ifdef GPU_PRIM_TRI_STRIP
   if (gl_VertexID == 0) {
     co = rect_geom.xw;
     uv = rect_icon.xw;
@@ -40,24 +32,6 @@ void main()
     co = rect_geom.zy;
     uv = rect_icon.zy;
   }
-#else
-  if (gl_VertexID == 0) {
-    co = rect_geom.xy;
-    uv = rect_icon.xy;
-  }
-  else if (gl_VertexID == 1) {
-    co = rect_geom.xw;
-    uv = rect_icon.xw;
-  }
-  else if (gl_VertexID == 2) {
-    co = rect_geom.zw;
-    uv = rect_icon.zw;
-  }
-  else {
-    co = rect_geom.zy;
-    uv = rect_icon.zy;
-  }
-#endif
 
   gl_Position = ModelViewProjectionMatrix * vec4(co, 0.0f, 1.0f);
   texCoord_interp = uv;