fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-07 20:08:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

i965: Compute the maximum SF source attribute.

Browse source 
The maximum SF source attribute is necessary to compute the Vertex URB
read length properly, which will be done in the next commit.

NOTE: This is a candidate for all stable branches.
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Tested-by: Martin Steigerwald <martin@lichtvoll.de>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 5e9bc7bd12)
This commit is contained in:
Kenneth Graunke 2013-02-02 12:40:54 -08:00
parent 45ae093e5c
commit 697f8e56dc
3 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/mesa/drivers/dri/i965/brw_state.h
View file

@ -225,7 +225,7 @@ void upload_default_color(struct brw_context *brw,
/* gen6_sf_state.c */
uint32_t
get_attr_override(struct brw_vue_map *vue_map, int urb_entry_read_offset,
int fs_attr, bool two_side_color);
int fs_attr, bool two_side_color, uint32_t *max_source_attr);
#ifdef __cplusplus
}

10
src/mesa/drivers/dri/i965/gen6_sf_state.c
View file

@ -54,7 +54,7 @@
*/
uint32_t
get_attr_override(struct brw_vue_map *vue_map, int urb_entry_read_offset,
int fs_attr, bool two_side_color)
int fs_attr, bool two_side_color, uint32_t *max_source_attr)
{
int vs_attr = _mesa_frag_attrib_to_vert_result(fs_attr);
if (vs_attr < 0 || vs_attr == VERT_RESULT_HPOS) {
@ -101,6 +101,10 @@ get_attr_override(struct brw_vue_map *vue_map, int urb_entry_read_offset,
(vue_map->slot_to_vert_result[slot] == VERT_RESULT_COL1 &&
vue_map->slot_to_vert_result[slot+1] == VERT_RESULT_BFC1));
/* Update max_source_attr. If swizzling, the SF will read this slot + 1. */
if (*max_source_attr < source_attr + swizzling)
*max_source_attr = source_attr + swizzling;
if (swizzling) {
return source_attr |
(ATTRIBUTE_SWIZZLE_INPUTATTR_FACING << ATTRIBUTE_SWIZZLE_SHIFT);
@ -281,6 +285,7 @@ upload_sf_state(struct brw_context *brw)
/* Create the mapping from the FS inputs we produce to the VS outputs
* they source from.
*/
uint32_t max_source_attr = 0;
for (; attr < FRAG_ATTRIB_MAX; attr++) {
enum glsl_interp_qualifier interp_qualifier =
brw->fragment_program->InterpQualifier[attr];
@ -316,7 +321,8 @@ upload_sf_state(struct brw_context *brw)
attr_overrides[input_index++] =
get_attr_override(&brw->vs.prog_data->vue_map,
urb_entry_read_offset, attr,
ctx->VertexProgram._TwoSideEnabled);
ctx->VertexProgram._TwoSideEnabled,
&max_source_attr);
}
for (; input_index < FRAG_ATTRIB_MAX; input_index++)

4
src/mesa/drivers/dri/i965/gen7_sf_state.c
View file

@ -84,6 +84,7 @@ upload_sbe_state(struct brw_context *brw)
/* Create the mapping from the FS inputs we produce to the VS outputs
* they source from.
*/
uint32_t max_source_attr = 0;
for (; attr < FRAG_ATTRIB_MAX; attr++) {
enum glsl_interp_qualifier interp_qualifier =
brw->fragment_program->InterpQualifier[attr];
@ -118,7 +119,8 @@ upload_sbe_state(struct brw_context *brw)
attr_overrides[input_index++] =
get_attr_override(&brw->vs.prog_data->vue_map,
urb_entry_read_offset, attr,
ctx->VertexProgram._TwoSideEnabled);
ctx->VertexProgram._TwoSideEnabled,
&max_source_attr);
}
for (; input_index < FRAG_ATTRIB_MAX; input_index++)