gallium: implement a glBitmap cache

The bitmap cache attempts to accumulate a series of glBitmap calls in a
buffer to effectively render a whole bunch of bitmaps at once.

The cache can be disabled, if needed, by setting UseBitmapCache=GL_FALSE.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h
index f235c194b7..85e3d47e1a 100644
--- a/src/mesa/state_tracker/st_context.h
+++ b/src/mesa/state_tracker/st_context.h
@@ -42,6 +42,7 @@ struct cso_cache;
 struct cso_blend;
 struct gen_mipmap_state;
 struct blit_state;
+struct bitmap_cache;
 
 
 #define ST_NEW_MESA                    0x1 /* Mesa state has changed */
@@ -151,6 +152,7 @@ struct st_context
       void *vs;
       float vertices[4][3][4];  /**< vertex pos + color + texcoord */
       struct pipe_buffer *vbuf;
+      struct bitmap_cache *cache;
    } bitmap;
 
    /** for glClear */