boolean r300_texture_desc_init(struct r300_screen *rscreen,
struct r300_resource *tex,
const struct pipe_resource *base)
{
tex->b.b.b.target = base->target;
tex->b.b.b.format = base->format;
tex->b.b.b.width0 = base->width0;
tex->b.b.b.height0 = base->height0;
tex->b.b.b.depth0 = base->depth0;
tex->b.b.b.array_size = base->array_size;
tex->b.b.b.last_level = base->last_level;
tex->b.b.b.nr_samples = base->nr_samples;
tex->tex.width0 = base->width0;
tex->tex.height0 = base->height0;
tex->tex.depth0 = base->depth0;
r300_setup_flags(tex);
/* Align a 3D NPOT texture to POT. */
if (base->target == PIPE_TEXTURE_3D && tex->tex.is_npot) {
tex->tex.width0 = util_next_power_of_two(tex->tex.width0);
tex->tex.height0 = util_next_power_of_two(tex->tex.height0);
tex->tex.depth0 = util_next_power_of_two(tex->tex.depth0);
}
/* Setup tiling. */
if (tex->tex.microtile == RADEON_LAYOUT_UNKNOWN) {
r300_setup_tiling(rscreen, tex);
}
r300_setup_cbzb_flags(rscreen, tex);
/* Setup the miptree description. */
r300_setup_miptree(rscreen, tex, TRUE);
/* If the required buffer size is larger the given max size,
* try again without the alignment for the CBZB clear. */
if (tex->buf_size && tex->tex.size_in_bytes > tex->buf_size) {
r300_setup_miptree(rscreen, tex, FALSE);
}
r300_setup_hyperz_properties(rscreen, tex);
if (tex->buf_size) {
/* Make sure the buffer we got is large enough. */
if (tex->tex.size_in_bytes > tex->buf_size) {
fprintf(stderr, "r300: texture_desc_init: The buffer is not "
"large enough. Got: %i, Need: %i, Info:\n",
tex->buf_size, tex->tex.size_in_bytes);
r300_tex_print_info(tex, "texture_desc_init");
return FALSE;
}
tex->tex.buffer_size_in_bytes = tex->buf_size;
} else {
tex->tex.buffer_size_in_bytes = tex->tex.size_in_bytes;
}
if (SCREEN_DBG_ON(rscreen, DBG_TEX))
r300_tex_print_info(tex, "texture_desc_init");
return TRUE;
}
void r300_texture_desc_init(struct r300_screen *rscreen,
struct r300_resource *tex,
const struct pipe_resource *base)
{
tex->b.b.target = base->target;
tex->b.b.format = base->format;
tex->b.b.width0 = base->width0;
tex->b.b.height0 = base->height0;
tex->b.b.depth0 = base->depth0;
tex->b.b.array_size = base->array_size;
tex->b.b.last_level = base->last_level;
tex->b.b.nr_samples = base->nr_samples;
tex->tex.width0 = base->width0;
tex->tex.height0 = base->height0;
tex->tex.depth0 = base->depth0;
/* There is a CB memory addressing hardware bug that limits the width
* of the MSAA buffer in some cases in R520. In order to get around it,
* the following code lowers the sample count depending on the format and
* the width.
*
* The only catch is that all MSAA colorbuffers and a zbuffer which are
* supposed to be used together should always be bound together. Only
* then the correct minimum sample count of all bound buffers is used
* for rendering. */
if (rscreen->caps.is_r500) {
/* FP16 6x MSAA buffers are limited to a width of 1360 pixels. */
if ((tex->b.b.format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
tex->b.b.format == PIPE_FORMAT_R16G16B16X16_FLOAT) &&
tex->b.b.nr_samples == 6 && tex->b.b.width0 > 1360) {
tex->b.b.nr_samples = 4;
}
/* FP16 4x MSAA buffers are limited to a width of 2048 pixels. */
if ((tex->b.b.format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
tex->b.b.format == PIPE_FORMAT_R16G16B16X16_FLOAT) &&
tex->b.b.nr_samples == 4 && tex->b.b.width0 > 2048) {
tex->b.b.nr_samples = 2;
}
}
/* 32-bit 6x MSAA buffers are limited to a width of 2720 pixels.
* This applies to all R300-R500 cards. */
if (util_format_get_blocksizebits(tex->b.b.format) == 32 &&
!util_format_is_depth_or_stencil(tex->b.b.format) &&
tex->b.b.nr_samples == 6 && tex->b.b.width0 > 2720) {
tex->b.b.nr_samples = 4;
}
r300_setup_flags(tex);
/* Align a 3D NPOT texture to POT. */
if (base->target == PIPE_TEXTURE_3D && tex->tex.is_npot) {
tex->tex.width0 = util_next_power_of_two(tex->tex.width0);
tex->tex.height0 = util_next_power_of_two(tex->tex.height0);
tex->tex.depth0 = util_next_power_of_two(tex->tex.depth0);
}
/* Setup tiling. */
if (tex->tex.microtile == RADEON_LAYOUT_UNKNOWN) {
r300_setup_tiling(rscreen, tex);
}
r300_setup_cbzb_flags(rscreen, tex);
/* Setup the miptree description. */
r300_setup_miptree(rscreen, tex, TRUE);
/* If the required buffer size is larger than the given max size,
* try again without the alignment for the CBZB clear. */
if (tex->buf && tex->tex.size_in_bytes > tex->buf->size) {
r300_setup_miptree(rscreen, tex, FALSE);
/* Make sure the buffer we got is large enough. */
if (tex->tex.size_in_bytes > tex->buf->size) {
fprintf(stderr,
"r300: I got a pre-allocated buffer to use it as a texture "
"storage, but the buffer is too small. I'll use the buffer "
"anyway, because I can't crash here, but it's dangerous. "
"This can be a DDX bug. Got: %iB, Need: %iB, Info:\n",
tex->buf->size, tex->tex.size_in_bytes);
r300_tex_print_info(tex, "texture_desc_init");
/* Ooops, what now. Apps will break if we fail this,
* so just pretend everything's okay. */
}
}
r300_setup_hyperz_properties(rscreen, tex);
r300_setup_cmask_properties(rscreen, tex);
if (SCREEN_DBG_ON(rscreen, DBG_TEX))
r300_tex_print_info(tex, "texture_desc_init");
}