diff options
Diffstat (limited to 'src/gallium/drivers/nv04/nv04_fragtex.c')
| -rw-r--r-- | src/gallium/drivers/nv04/nv04_fragtex.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv04/nv04_fragtex.c b/src/gallium/drivers/nv04/nv04_fragtex.c new file mode 100644 index 0000000000..3db673cd2c --- /dev/null +++ b/src/gallium/drivers/nv04/nv04_fragtex.c @@ -0,0 +1,100 @@ +#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); +} + |