[cogl/wip/cogl-1.14: 65/177] cogl: Enable PBO path for all mesa versions when using intel

[Robert Bragg <rbragg src gnome org>]

commit 3a0e57fd9344f061b60ba4ba1168377c5b92611d
Author: Adel Gadllah <adel gadllah gmail com>
Date:   Thu Oct 11 17:59:55 2012 +0200

    cogl: Enable PBO path for all mesa versions when using intel
    
    There seem to be other cases where the slow path is hit even with mesa 9.0.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=685915
    
    (cherry picked from commit 6b14fa222bafb7e67c4845b26439322b34ac26a2)

 cogl/cogl-gpu-info.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/cogl/cogl-gpu-info.c b/cogl/cogl-gpu-info.c
index 5bb0e65..0d23c97 100644
--- a/cogl/cogl-gpu-info.c
+++ b/cogl/cogl-gpu-info.c
@@ -540,14 +540,12 @@ probed:
 
   /* Determine the driver bugs */
 
-  /* In Mesa < 8.0.2 the glReadPixels implementation is really slow
-     because it converts each pixel to a floating point representation
-     and back even if the data could just be memcpy'd. The Intel
+  /* In Mesa the glReadPixels implementation is really slow
+     when using the Intel driver. The Intel
      driver has a fast blit path when reading into a PBO. Reading into
      a temporary PBO and then memcpying back out to the application's
      memory is faster than a regular glReadPixels in this case */
   if (gpu->vendor == COGL_GPU_INFO_VENDOR_INTEL &&
-      gpu->driver_package == COGL_GPU_INFO_DRIVER_PACKAGE_MESA &&
-      gpu->driver_package_version < COGL_VERSION_ENCODE (8, 0, 2))
+      gpu->driver_package == COGL_GPU_INFO_DRIVER_PACKAGE_MESA)
     gpu->driver_bugs |= COGL_GPU_INFO_DRIVER_BUG_MESA_46631_SLOW_READ_PIXELS;
 }