Draw: Removal of MultiSample Buffers

Multisample buffers were used for smooth line drawing. As we now have
an algorithm that doesn't need the multisample buffers we can remove
them.

The user preference for viewport multi_sampling is replaced by single
toggle overlay `use_overlay_smooth_wire`. By default this setting is
enabled as the new drawing is really quick (<1ms) and uses zero hacks.

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D6367

1 files changed, 0 insertions, 38 deletions

diff --git a/source/blender/draw/intern/DRW_render.h b/source/blender/draw/intern/DRW_render.h
index 27b43ee8c17..8037bd03383 100644
--- a/source/blender/draw/intern/DRW_render.h
+++ b/source/blender/draw/intern/DRW_render.h
@@ -101,41 +101,6 @@ typedef char DRWViewportEmptyList;
         DRW_VIEWPORT_LIST_SIZE(*(((ty *)NULL)->stl)), \
   }
 
-/* Use of multisample framebuffers. */
-#define MULTISAMPLE_SYNC_ENABLE(dfbl, dtxl) \
-  { \
-    if (dfbl->multisample_fb != NULL && DRW_state_is_fbo()) { \
-      DRW_stats_query_start("Multisample Blit"); \
-      GPU_framebuffer_bind(dfbl->multisample_fb); \
-      /* TODO clear only depth but need to do alpha to coverage for transparencies. */ \
-      GPU_framebuffer_clear_color_depth(dfbl->multisample_fb, (const float[4]){0.0f}, 1.0f); \
-      DRW_stats_query_end(); \
-    } \
-  } \
-  ((void)0)
-
-#define MULTISAMPLE_SYNC_DISABLE(dfbl, dtxl) \
-  { \
-    if (dfbl->multisample_fb != NULL && DRW_state_is_fbo()) { \
-      DRW_stats_query_start("Multisample Resolve"); \
-      GPU_framebuffer_bind(dfbl->default_fb); \
-      DRW_multisamples_resolve(dtxl->multisample_depth, dtxl->multisample_color, true); \
-      DRW_stats_query_end(); \
-    } \
-  } \
-  ((void)0)
-
-#define MULTISAMPLE_SYNC_DISABLE_NO_DEPTH(dfbl, dtxl) \
-  { \
-    if (dfbl->multisample_fb != NULL && DRW_state_is_fbo()) { \
-      DRW_stats_query_start("Multisample Resolve"); \
-      GPU_framebuffer_bind(dfbl->default_fb); \
-      DRW_multisamples_resolve(dtxl->multisample_depth, dtxl->multisample_color, false); \
-      DRW_stats_query_end(); \
-    } \
-  } \
-  ((void)0)
-
 typedef struct DrawEngineDataSize {
   int fbl_len;
   int txl_len;
@@ -176,15 +141,12 @@ typedef struct DefaultFramebufferList {
   struct GPUFrameBuffer *in_front_fb;
   struct GPUFrameBuffer *color_only_fb;
   struct GPUFrameBuffer *depth_only_fb;
-  struct GPUFrameBuffer *multisample_fb;
 } DefaultFramebufferList;
 
 typedef struct DefaultTextureList {
   struct GPUTexture *color;
   struct GPUTexture *depth;
   struct GPUTexture *depth_in_front;
-  struct GPUTexture *multisample_color;
-  struct GPUTexture *multisample_depth;
 } DefaultTextureList;
 #endif