svga: Use comparison between svga texture types to use PredCopyRegion command

PredCopyRegion support copy between same type of textures.
Instead of comparing src and dst pipe texture type, compare svga texture
type which can avoid some software fallback.
for example, it avoids a software blit with the Redway3D Aston demo.

Tested piglit tests on VGPU9 and  VGPU10 on GL/DX11Renderer, Redway3D Aston demo

v2: some nit pick suggested by Charmaine.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

1 files changed, 9 insertions, 6 deletions

diff --git a/src/gallium/drivers/svga/svga_pipe_blit.c b/src/gallium/drivers/svga/svga_pipe_blit.c
index e1a4c069ca0..5a7fa308718 100644
--- a/src/gallium/drivers/svga/svga_pipe_blit.c
+++ b/src/gallium/drivers/svga/svga_pipe_blit.c
@@ -168,7 +168,8 @@ svga_resource_copy_region(struct pipe_context *pipe,
           util_format_is_compressed(dst_tex->format) &&
           !util_format_is_depth_and_stencil(src_tex->format) &&
           stex->handle != dtex->handle &&
-          src_tex->target == dst_tex->target) {
+          svga_resource_type(src_tex->target) ==
+          svga_resource_type(dst_tex->target)) {
          copy_region_vgpu10(svga,
                             src_tex,
                             src_box->x, src_box->y, src_z,
@@ -229,16 +230,17 @@ can_blit_via_copy_region_vgpu10(struct svga_context *svga,
    if (stex->handle == dtex->handle)
       return false;
 
-   // can't copy between different resource types
-   if (blit_info->src.resource->target != blit_info->dst.resource->target)
+   /* can't copy between different resource types */
+   if (svga_resource_type(blit_info->src.resource->target) !=
+       svga_resource_type(blit_info->dst.resource->target))
       return false;
 
-   // check that the blit src/dst regions are same size, no flipping, etc.
+   /* check that the blit src/dst regions are same size, no flipping, etc. */
    if (blit_info->src.box.width != blit_info->dst.box.width ||
        blit_info->src.box.height != blit_info->dst.box.height)
       return false;
 
-   // depth/stencil copies not supported at this time
+   /* depth/stencil copies not supported at this time */
    if (blit_info->mask != PIPE_MASK_RGBA)
       return false;
 
@@ -246,7 +248,8 @@ can_blit_via_copy_region_vgpu10(struct svga_context *svga,
        blit_info->scissor_enable)
       return false;
 
-   // check that src/dst surface formats are compatible for the VGPU device.
+   /* check that src/dst surface formats are compatible for
+      the VGPU device.*/
    return util_is_format_compatible(
         util_format_description(blit_info->src.resource->format),
         util_format_description(blit_info->dst.resource->format));