BRW_MAX_TEX_UNIT is the static limit on the number of textures we
support per-stage, not in total.
Core's `Unit` array is sized by MAX_COMBINED_TEXTURE_IMAGE_UNITS, which
is significantly larger, and across the various shader stages, up to
ctx->Const.MaxCombinedTextureImageUnits elements of it may be actually
used.
Fixes invisible bad behavior in piglit's max-samplers test (although
this escalated to an assertion failure on HSW with texture_view, since
non-immutable textures only have _Format set by validation.)
Signed-off-by: Chris Forbes <chr...@ijw.co.nz>
Cc: "9.2 10.0 10.1" <mesa-sta...@lists.freedesktop.org>
Cc: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/brw_draw.c | 2 +-
src/mesa/drivers/dri/i965/brw_tex.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c
b/src/mesa/drivers/dri/i965/brw_draw.c
index 540834c..bc887fe 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -317,7 +317,7 @@ brw_predraw_resolve_buffers(struct brw_context *brw)
/* Resolve depth buffer of each enabled depth texture, and color buffer of
* each fast-clear-enabled color texture.
*/
- for (int i = 0; i < BRW_MAX_TEX_UNIT; i++) {
+ for (int i = 0; i < ctx->Const.MaxCombinedTextureImageUnits; i++) {
if (!ctx->Texture.Unit[i]._ReallyEnabled)
continue;
tex_obj = intel_texture_object(ctx->Texture.Unit[i]._Current);
diff --git a/src/mesa/drivers/dri/i965/brw_tex.c
b/src/mesa/drivers/dri/i965/brw_tex.c
index 9234e3a..b1f4de0 100644
--- a/src/mesa/drivers/dri/i965/brw_tex.c
+++ b/src/mesa/drivers/dri/i965/brw_tex.c
@@ -47,7 +47,7 @@ void brw_validate_textures( struct brw_context *brw )
struct gl_context *ctx = &brw->ctx;
int i;
- for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
+ for (i = 0; i < ctx->Const.MaxCombinedTextureImageUnits; i++) {
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
if (texUnit->_ReallyEnabled) {
--
1.9.0
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