st/mesa: prefer native texture formats when possible.

If possible, we want to match the hardware format to what the app uses. By
doing so, we avoid the need for pixel conversions and therefore greatly speed
up texture uploads.

1 files changed, 6 insertions, 4 deletions

diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 965fbcd1d9e..c730975dfbf 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -989,8 +989,9 @@ st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
       /* can we write to stencil if not fallback */
       if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))
 	 goto stencil_fallback;
-      
+
       tex_format = st_choose_format(st->pipe->screen, base_format(format),
+                                    GL_NONE, GL_NONE,
                                     PIPE_TEXTURE_2D,
 				    0, PIPE_BIND_SAMPLER_VIEW);
       if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
@@ -1399,13 +1400,14 @@ st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
       /* srcFormat can't be used as a texture format */
       if (type == GL_DEPTH) {
          texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
-                                      st->internal_target, sample_count,
-                                      PIPE_BIND_DEPTH_STENCIL);
+                                      st->internal_target, GL_NONE, GL_NONE,
+				      sample_count, PIPE_BIND_DEPTH_STENCIL);
          assert(texFormat != PIPE_FORMAT_NONE);
       }
       else {
          /* default color format */
-         texFormat = st_choose_format(screen, GL_RGBA, st->internal_target,
+         texFormat = st_choose_format(screen, GL_RGBA,
+                                      st->internal_target, GL_NONE, GL_NONE,
                                       sample_count, PIPE_BIND_SAMPLER_VIEW);
          assert(texFormat != PIPE_FORMAT_NONE);
       }