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Fixed Z range on ViRGE S3D, fixes Grim Fandango.

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This commit is contained in:
TomW 2014-08-25 15:22:51 +01:00
commit 4b3f77c926
1 changed files with 2 additions and 2 deletions
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4
src/vid_s3_virge.c
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@ -2330,7 +2330,7 @@ static void tri(virge_t *virge, s3d_t *s3d_tri, s3d_state_t *state, int yc, int3
{ {
int x = (state->x1 + ((1 << 20) - 1)) >> 20; int x = (state->x1 + ((1 << 20) - 1)) >> 20;
int xe = (state->x2 + ((1 << 20) - 1)) >> 20; int xe = (state->x2 + ((1 << 20) - 1)) >> 20;
uint32_t z = state->base_z; uint32_t z = (state->base_z > 0) ? (state->base_z << 1) : 0;
if (x_dir < 0) if (x_dir < 0)
{ {
x--; x--;
@ -2419,7 +2419,7 @@ static void tri(virge_t *virge, s3d_t *s3d_tri, s3d_state_t *state, int yc, int3
for (; x != xe; x = (x + x_dir) & 0xfff) for (; x != xe; x = (x + x_dir) & 0xfff)
{ {
int update = 1; int update = 1;
int16_t src_z; uint16_t src_z;
_x = x; _y = state->y; _x = x; _y = state->y;
if (use_z) if (use_z)