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authorEric Anholt <eric@anholt.net>2009-02-26 00:18:46 -0800
committerEric Anholt <eric@anholt.net>2009-02-26 00:20:39 -0800
commit160c3617fc8867edc445b1ba62fc996c4630cc35 (patch)
tree91a8f8a4260bee3d6a8a6bdf59cc05bb4ce00dfc /src/mesa/drivers
parent2b34275a784501225f605f11db801b5f2d7cdc64 (diff)
intel: Disable creating DRI2 FBconfigs with depth size != color size.
While it's a nice idea to be able to allow clients to choose a smaller (or bigger for 16bpp screens!) depth size, right now DRI2 hands back a buffer with a size that matches the drawable, rather than being based off of the visual. This led to problems in readback as parts of the driver disagreed on what format the depth buffer was really in. Fixes the remainder of bug #19447.
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/intel/intel_screen.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index df404695bc..09eba13aab 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -765,13 +765,34 @@ __DRIconfig **intelInitScreen2(__DRIscreenPrivate *psp)
fb_format[2] = GL_BGRA;
fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
+ depth_bits[0] = 0;
+ stencil_bits[0] = 0;
+
for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
__DRIconfig **new_configs;
+ int depth_factor;
+
+ /* With DRI2 right now, GetBuffers always returns a depth/stencil buffer
+ * with the same cpp as the drawable. So we can't support depth cpp !=
+ * color cpp currently.
+ */
+ if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
+ depth_bits[1] = 16;
+ stencil_bits[1] = 0;
+
+ depth_factor = 2;
+ } else {
+ depth_bits[1] = 24;
+ stencil_bits[1] = 0;
+ depth_bits[2] = 24;
+ stencil_bits[2] = 8;
+ depth_factor = 3;
+ }
new_configs = driCreateConfigs(fb_format[color], fb_type[color],
depth_bits,
stencil_bits,
- ARRAY_SIZE(depth_bits),
+ depth_factor,
back_buffer_modes,
ARRAY_SIZE(back_buffer_modes),
msaa_samples_array,