[Mesa-dev] [PATCH 2/3] i965: Bump GL_MAX_CUBE_MAP_TEXTURE_SIZE to 8192.

[Kenneth Graunke]

Gen4+ supports 8192x8192 cube maps.  Ivybridge and later can actually
support 16384, but that would place GL_MAX_CUBE_MAP_TEXTURE_SIZE above
GL_MAX_TEXTURE_SIZE, which seems like a bad idea.

(Unfortunately, we can't bump GL_MAX_TEXTURE_SIZE to 16384 without
causing regressions due to awful W-tiled stencil buffer interactions.)

Cc: idr at freedesktop.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74130
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/brw_context.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index c54c818..17b75e1 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -305,7 +305,7 @@ brw_initialize_context_constants(struct brw_context *brw)
    if (ctx->Const.MaxTextureLevels > MAX_TEXTURE_LEVELS)
       ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS;
    ctx->Const.Max3DTextureLevels = 12; /* 2048 */
-   ctx->Const.MaxCubeTextureLevels = 12;
+   ctx->Const.MaxCubeTextureLevels = 14; /* 8192 */
 
    if (brw->gen >= 7)
       ctx->Const.MaxArrayTextureLayers = 2048;
-- 
1.8.5.2