mesa: replace Driver.GetTexImage with GetTexSubImage()

The new driver hook has x/y/zoffset and width/height/depth parameters
for the new glGetTextureSubImage() function.

The meta code and gallium state tracker are updated to handle the
new parameters.

Callers to Driver.GetTexSubImage() pass in offsets=0 and sizes equal
to the whole texture size.

v2: update i965 driver code, s/GLint/GLsizei/ in GetTexSubImage hook

Reviewed-by: Ilia Mirkin <[email protected]>

1 files changed, 6 insertions, 3 deletions

diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
index 7732d09b2ec..1e22f930092 100644
--- a/src/mesa/main/mipmap.c
+++ b/src/mesa/main/mipmap.c
@@ -2077,9 +2077,12 @@ generate_mipmap_compressed(struct gl_context *ctx, GLenum target,
 
       /* Get the uncompressed image */
       assert(srcImage->Level == texObj->BaseLevel);
-      ctx->Driver.GetTexImage(ctx,
-                              temp_base_format, temp_datatype,
-                              temp_src, srcImage);
+      ctx->Driver.GetTexSubImage(ctx,
+                                 0, 0, 0,
+                                 srcImage->Width, srcImage->Height,
+                                 srcImage->Depth,
+                                 temp_base_format, temp_datatype,
+                                 temp_src, srcImage);
       /* restore packing mode */
       ctx->Pack = save;
    }