boolean r300_is_sampler_format_supported(enum pipe_format format)
{
return r300_translate_texformat(format, 0, TRUE, FALSE) != ~0;
}
static void r300_setup_texture_state(struct r300_screen* screen, struct r300_texture* tex)
{
struct r300_texture_format_state* state = &tex->state;
struct pipe_texture *pt = &tex->tex;
unsigned i;
boolean is_r500 = screen->caps->is_r500;
/* Set sampler state. */
state->format0 = R300_TX_WIDTH((pt->width0 - 1) & 0x7ff) |
R300_TX_HEIGHT((pt->height0 - 1) & 0x7ff);
if (tex->is_npot) {
/* rectangles love this */
state->format0 |= R300_TX_PITCH_EN;
state->format2 = (tex->pitch[0] - 1) & 0x1fff;
} else {
/* power of two textures (3D, mipmaps, and no pitch) */
state->format0 |= R300_TX_DEPTH(util_logbase2(pt->depth0) & 0xf);
}
state->format1 = r300_translate_texformat(pt->format);
if (pt->target == PIPE_TEXTURE_CUBE) {
state->format1 |= R300_TX_FORMAT_CUBIC_MAP;
}
if (pt->target == PIPE_TEXTURE_3D) {
state->format1 |= R300_TX_FORMAT_3D;
}
/* large textures on r500 */
if (is_r500)
{
if (pt->width0 > 2048) {
state->format2 |= R500_TXWIDTH_BIT11;
}
if (pt->height0 > 2048) {
state->format2 |= R500_TXHEIGHT_BIT11;
}
}
SCREEN_DBG(screen, DBG_TEX, "r300: Set texture state (%dx%d, %d levels)\n",
pt->width0, pt->height0, pt->last_level);
/* Set framebuffer state. */
if (util_format_is_depth_or_stencil(tex->tex.format)) {
for (i = 0; i <= tex->tex.last_level; i++) {
tex->fb_state.depthpitch[i] =
tex->pitch[i] |
R300_DEPTHMACROTILE(tex->mip_macrotile[i]) |
R300_DEPTHMICROTILE(tex->microtile);
}
tex->fb_state.zb_format = r300_translate_zsformat(tex->tex.format);
} else {
for (i = 0; i <= tex->tex.last_level; i++) {
tex->fb_state.colorpitch[i] =
tex->pitch[i] |
r300_translate_colorformat(tex->tex.format) |
R300_COLOR_TILE(tex->mip_macrotile[i]) |
R300_COLOR_MICROTILE(tex->microtile);
}
tex->fb_state.us_out_fmt = r300_translate_out_fmt(tex->tex.format);
}
}