meta: Add an accelerated glCopyTexSubImage using glBlitFramebuffer.

You'll note from the previous commits that there's something of a loop
here: You call CTSI, which calls BlitFB, then if things go wrong that
falls back to CTSI.  As a result, meta CTSI reaches over into blitfb to
tell it "no, don't try that fallback".

v2: Drop the _mesa_update_state(), which was only necessary due to use of
    _mesa_clip_blit() in _mesa_meta_BlitFramebuffer() in another patch
    series.
v3: Drop an _EXT suffix I copy-and-pasted.

Reviewed-by: Ian Romanick <[email protected]> (v2)
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h
index ad3da9cd8d4..fd8a385b644 100644
--- a/src/mesa/drivers/common/meta.h
+++ b/src/mesa/drivers/common/meta.h
@@ -253,6 +253,7 @@ struct blit_state
    struct blit_shader_table shaders;
    GLuint msaa_shaders[BLIT_MSAA_SHADER_COUNT];
    struct temp_texture depthTex;
+   bool no_ctsi_fallback;
 };
 
 
@@ -505,6 +506,7 @@ void
 _mesa_meta_glsl_generate_mipmap_cleanup(struct gen_mipmap_state *mipmap);
 
 void
-_mesa_meta_bind_fbo_image(struct gl_texture_image *texImage, GLuint layer);
+_mesa_meta_bind_fbo_image(GLenum attachment,
+                          struct gl_texture_image *texImage, GLuint layer);
 
 #endif /* META_H */