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Merge branch 'master' of https://github.com/86Box/86Box

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This commit is contained in:
OBattler
2021-06-28 01:03:35 +02:00
parent 5d05434d46 10c415e742
commit f6eff25e1f
1 changed files with 15 additions and 0 deletions
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15
src/video/vid_s3_virge.c
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@@ -150,6 +150,8 @@ typedef struct s3d_t
uint32_t txs;
uint32_t tys;
int ty01, ty12, tlr;
uint8_t fog_r, fog_g, fog_b;
} s3d_t;
typedef struct virge_t
@@ -347,6 +349,7 @@ enum
CMD_SET_COMMAND_MASK = (15 << 27)
};
#define CMD_SET_FE (1 << 17)
#define CMD_SET_ABC_SRC (1 << 18)
#define CMD_SET_ABC_ENABLE (1 << 19)
#define CMD_SET_TWE (1 << 26)
@@ -1550,6 +1553,11 @@ s3_virge_mmio_write_l(uint32_t addr, uint32_t val, void *p)
s3_virge_bitblt(virge, -1, 0);
break;
case 0xb0f4: case 0xb4f4:
virge->s3d_tri.fog_b = val & 0xff;
virge->s3d_tri.fog_g = (val >> 8) & 0xff;
virge->s3d_tri.fog_r = (val >> 16) & 0xff;
break;
case 0xb4d4:
virge->s3d_tri.z_base = val & 0x3ffff8;
break;
@@ -2968,6 +2976,13 @@ static void tri(virge_t *virge, s3d_t *s3d_tri, s3d_state_t *state, int yc, int3
dest_pixel(state);
if (s3d_tri->cmd_set & CMD_SET_FE)
{
int a = state->a >> 7;
state->dest_rgba.r = ((state->dest_rgba.r * a) + (s3d_tri->fog_r * (255 - a))) / 255;
state->dest_rgba.g = ((state->dest_rgba.g * a) + (s3d_tri->fog_g * (255 - a))) / 255;
state->dest_rgba.b = ((state->dest_rgba.b * a) + (s3d_tri->fog_b * (255 - a))) / 255;
}
if (s3d_tri->cmd_set & CMD_SET_ABC_ENABLE)
{
switch (bpp)