[Mesa-dev] [PATCH] intel: Don't advertise GLX_SWAP_COPY_OML

[Chad Versace]

This patch removes all gl_config's with swapMethod=GLX_SWAP_COPY_OML. When
page flipping, we are unable to comply with swap-copy semantics.

CC: Eric Anholt <eric at anholt.net>
Signed-off-by: Chad Versace <chad.versace at linux.intel.com>
---
 src/mesa/drivers/dri/intel/intel_screen.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index 3c595bc..1010615 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -822,8 +822,9 @@ intel_detect_swizzling(struct intel_screen *screen)
 static __DRIconfig**
 intel_screen_make_configs(__DRIscreen *dri_screen)
 {
+   /* GLX_SWAP_COPY_OML is not supported due to page flipping. */
    static const GLenum back_buffer_modes[] = {
-       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+       GLX_SWAP_UNDEFINED_OML, GLX_NONE,
    };
 
    static const uint8_t singlesample_samples[1] = {0};
@@ -868,8 +869,7 @@ intel_screen_make_configs(__DRIscreen *dri_screen)
                                      depth_bits,
                                      stencil_bits,
                                      num_depth_stencil_bits,
-                                     back_buffer_modes,
-                                     ARRAY_SIZE(back_buffer_modes),
+                                     back_buffer_modes, 2,
                                      singlesample_samples, 1,
                                      false);
       configs = driConcatConfigs(configs, new_configs);
@@ -891,7 +891,7 @@ intel_screen_make_configs(__DRIscreen *dri_screen)
 
       new_configs = driCreateConfigs(fb_format[i], fb_type[i],
                                      depth_bits, stencil_bits, 1,
-                                     back_buffer_modes + 1, 1,
+                                     back_buffer_modes, 1,
                                      singlesample_samples, 1,
                                      true);
       configs = driConcatConfigs(configs, new_configs);
@@ -908,7 +908,7 @@ intel_screen_make_configs(__DRIscreen *dri_screen)
     *
     * Only doublebuffer configs with GLX_SWAP_UNDEFINED_OML behavior are
     * supported.  Singlebuffer configs are not supported because no one wants
-    * them. GLX_SWAP_COPY_OML is not supported due to page flipping.
+    * them.
     */
    for (int i = 0; i < ARRAY_SIZE(fb_format); i++) {
       if (screen->gen < 6)
@@ -938,7 +938,7 @@ intel_screen_make_configs(__DRIscreen *dri_screen)
                                      depth_bits,
                                      stencil_bits,
                                      num_depth_stencil_bits,
-                                     back_buffer_modes + 1, 1,
+                                     back_buffer_modes, 1,
                                      multisample_samples,
                                      num_msaa_modes,
                                      false);
-- 
1.7.11.4