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#include "nv04_context.h"
static INLINE int log2i(int i)
{
int r = 0;
if (i & 0xffff0000) {
i >>= 16;
r += 16;
}
if (i & 0x0000ff00) {
i >>= 8;
r += 8;
}
if (i & 0x000000f0) {
i >>= 4;
r += 4;
}
if (i & 0x0000000c) {
i >>= 2;
r += 2;
}
if (i & 0x00000002) {
r += 1;
}
return r;
}
#define _(m,tf) \
{ \
PIPE_FORMAT_##m, \
NV04_DX5_TEXTURED_TRIANGLE_FORMAT_COLOR_##tf, \
}
struct nv04_texture_format {
uint pipe;
int format;
};
static struct nv04_texture_format
nv04_texture_formats[] = {
_(A8R8G8B8_UNORM, A8R8G8B8),
_(X8R8G8B8_UNORM, X8R8G8B8),
_(A1R5G5B5_UNORM, A1R5G5B5),
_(A4R4G4B4_UNORM, A4R4G4B4),
_(L8_UNORM, Y8 ),
_(A8_UNORM, Y8 ),
};
static uint32_t
nv04_fragtex_format(uint pipe_format)
{
struct nv04_texture_format *tf = nv04_texture_formats;
char fs[128];
int i;
for (i=0; i< sizeof(nv04_texture_formats)/sizeof(nv04_texture_formats[0]); i++) {
if (tf->pipe == pipe_format)
return tf->format;
tf++;
}
pf_sprint_name(fs, pipe_format);
NOUVEAU_ERR("unknown texture format %s\n", fs);
return 0;
}
static void
nv04_fragtex_build(struct nv04_context *nv04, int unit)
{
struct nv04_miptree *nv04mt = nv04->tex_miptree[unit];
struct pipe_texture *pt = &nv04mt->base;
switch (pt->target) {
case PIPE_TEXTURE_2D:
break;
default:
NOUVEAU_ERR("Unknown target %d\n", pt->target);
return;
}
nv04->fragtex.format = NV04_DX5_TEXTURED_TRIANGLE_FORMAT_ORIGIN_ZOH_CORNER
| NV04_DX5_TEXTURED_TRIANGLE_FORMAT_ORIGIN_FOH_CORNER
| nv04_fragtex_format(pt->format)
| ( (pt->last_level + 1) << NV04_DX5_TEXTURED_TRIANGLE_FORMAT_MIPMAP_LEVELS_SHIFT )
| ( log2i(pt->width[0]) << NV04_DX5_TEXTURED_TRIANGLE_FORMAT_BASE_SIZE_U_SHIFT )
| ( log2i(pt->height[0]) << NV04_DX5_TEXTURED_TRIANGLE_FORMAT_BASE_SIZE_V_SHIFT )
| NV04_DX5_TEXTURED_TRIANGLE_FORMAT_ADDRESSU_CLAMP_TO_EDGE
| NV04_DX5_TEXTURED_TRIANGLE_FORMAT_ADDRESSV_CLAMP_TO_EDGE
;
}
void
nv04_fragtex_bind(struct nv04_context *nv04)
{
nv04_fragtex_build(nv04, 0);
}
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