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via: allow for npot texture pitch alignment

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Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Thomas Hellstrom 2007-01-08 21:21:41 +11:00 committed by Dave Airlie
parent 689692e73e
commit 9b8d9d0e01
3 changed files with 24 additions and 11 deletions
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4
drivers/char/drm/via_drv.h
View File

@ -29,10 +29,10 @@
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome / Pro"
#define DRIVER_DATE "20060529"
#define DRIVER_DATE "20061227"
#define DRIVER_MAJOR 2
#define DRIVER_MINOR 10
#define DRIVER_MINOR 11
#define DRIVER_PATCHLEVEL 0
#include "via_verifier.h"

30
drivers/char/drm/via_verifier.c
View File

@ -306,6 +306,7 @@ static __inline__ int finish_current_sequence(drm_via_state_t * cur_seq)
unsigned long lo = ~0, hi = 0, tmp;
uint32_t *addr, *pitch, *height, tex;
unsigned i;
int npot;
if (end > 9)
end = 9;
@ -316,12 +317,15 @@ static __inline__ int finish_current_sequence(drm_via_state_t * cur_seq)
&(cur_seq->t_addr[tex = cur_seq->texture][start]);
pitch = &(cur_seq->pitch[tex][start]);
height = &(cur_seq->height[tex][start]);
npot = cur_seq->tex_npot[tex];
for (i = start; i <= end; ++i) {
tmp = *addr++;
if (tmp < lo)
lo = tmp;
tmp += (*height++ << *pitch++);
if (i == 0 && npot)
tmp += (*height++ * *pitch++);
else
tmp += (*height++ << *pitch++);
if (tmp > hi)
hi = tmp;
}
@ -443,13 +447,21 @@ investigate_hazard(uint32_t cmd, hazard_t hz, drm_via_state_t * cur_seq)
return 0;
case check_texture_addr3:
cur_seq->unfinished = tex_address;
tmp = ((cmd >> 24) - 0x2B);
cur_seq->pitch[cur_seq->texture][tmp] =
(cmd & 0x00F00000) >> 20;
if (!tmp && (cmd & 0x000FFFFF)) {
DRM_ERROR
("Unimplemented texture level 0 pitch mode.\n");
return 2;
tmp = ((cmd >> 24) - HC_SubA_HTXnL0Pit);
if (tmp == 0 &&
(cmd & HC_HTXnEnPit_MASK)) {
cur_seq->pitch[cur_seq->texture][tmp] =
(cmd & HC_HTXnLnPit_MASK);
cur_seq->tex_npot[cur_seq->texture] = 1;
} else {
cur_seq->pitch[cur_seq->texture][tmp] =
(cmd & HC_HTXnLnPitE_MASK) >> HC_HTXnLnPitE_SHIFT;
cur_seq->tex_npot[cur_seq->texture] = 0;
if (cmd & 0x000FFFFF) {
DRM_ERROR
("Unimplemented texture level 0 pitch mode.\n");
return 2;
}
}
return 0;
case check_texture_addr4:

1
drivers/char/drm/via_verifier.h
View File

@ -43,6 +43,7 @@ typedef struct {
uint32_t tex_level_lo[2];
uint32_t tex_level_hi[2];
uint32_t tex_palette_size[2];
uint32_t tex_npot[2];
drm_via_sequence_t unfinished;
int agp_texture;
int multitex;