}
}
+static void r300_setup_cmask_properties(struct r300_screen *screen,
+ struct r300_resource *tex)
+{
+ static unsigned cmask_align_x[4] = {16, 32, 48, 32};
+ static unsigned cmask_align_y[4] = {16, 16, 16, 32};
+ unsigned pipes, stride, cmask_num_dw, cmask_max_size;
+
+ if (!screen->caps.has_cmask) {
+ return;
+ }
+
+ /* We need an AA colorbuffer, no mipmaps. */
+ if (tex->b.b.nr_samples <= 1 ||
+ tex->b.b.last_level > 0 ||
+ util_format_is_depth_or_stencil(tex->b.b.format)) {
+ return;
+ }
+
+ /* FP16 AA needs R500 and a fairly new DRM. */
+ if ((tex->b.b.format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
+ tex->b.b.format == PIPE_FORMAT_R16G16B16X16_FLOAT) &&
+ (!screen->caps.is_r500 || screen->info.drm_minor < 29)) {
+ return;
+ }
+
+ if (SCREEN_DBG_ON(screen, DBG_NO_CMASK)) {
+ return;
+ }
+
+ /* CMASK is part of raster pipes. The number of Z pipes doesn't matter. */
+ pipes = screen->info.r300_num_gb_pipes;
+
+ /* The single-pipe cards have 5120 dwords of CMASK RAM,
+ * the other cards have 4096 dwords of CMASK RAM per pipe. */
+ cmask_max_size = pipes == 1 ? 5120 : pipes * 4096;
+
+ stride = r300_stride_to_width(tex->b.b.format,
+ tex->tex.stride_in_bytes[0]);
+ stride = align(stride, 16);
+
+ /* Get the CMASK size in dwords. */
+ cmask_num_dw = r300_pixels_to_dwords(stride, tex->b.b.height0,
+ cmask_align_x[pipes-1],
+ cmask_align_y[pipes-1]);
+
+ /* Check the CMASK size against the CMASK memory limit. */
+ if (cmask_num_dw <= cmask_max_size) {
+ tex->tex.cmask_dwords = cmask_num_dw;
+ tex->tex.cmask_stride_in_pixels =
+ util_align_npot(stride, cmask_align_x[pipes-1]);
+ }
+}
+
static void r300_setup_tiling(struct r300_screen *screen,
struct r300_resource *tex)
{
boolean rv350_mode = screen->caps.family >= CHIP_R350;
boolean is_zb = util_format_is_depth_or_stencil(format);
boolean dbg_no_tiling = SCREEN_DBG_ON(screen, DBG_NO_TILING);
+ boolean force_microtiling =
+ (tex->b.b.flags & R300_RESOURCE_FORCE_MICROTILING) != 0;
if (tex->b.b.nr_samples > 1) {
tex->tex.microtile = RADEON_LAYOUT_TILED;
tex->tex.microtile = RADEON_LAYOUT_LINEAR;
tex->tex.macrotile[0] = RADEON_LAYOUT_LINEAR;
+ if (tex->b.b.usage == PIPE_USAGE_STAGING) {
+ return;
+ }
+
if (!util_format_is_plain(format)) {
return;
}
/* If height == 1, disable microtiling except for zbuffer. */
- if (!is_zb && (tex->b.b.height0 == 1 || dbg_no_tiling)) {
+ if (!force_microtiling && !is_zb &&
+ (tex->b.b.height0 == 1 || dbg_no_tiling)) {
return;
}
{
fprintf(stderr,
"r300: %s: Macro: %s, Micro: %s, Pitch: %i, Dim: %ix%ix%i, "
- "LastLevel: %i, Size: %i, Format: %s\n",
+ "LastLevel: %i, Size: %i, Format: %s, Samples: %i\n",
func,
tex->tex.macrotile[0] ? "YES" : " NO",
tex->tex.microtile ? "YES" : " NO",
r300_stride_to_width(tex->b.b.format, tex->tex.stride_in_bytes[0]),
tex->b.b.width0, tex->b.b.height0, tex->b.b.depth0,
tex->b.b.last_level, tex->tex.size_in_bytes,
- util_format_short_name(tex->b.b.format));
+ util_format_short_name(tex->b.b.format),
+ tex->b.b.nr_samples);
}
void r300_texture_desc_init(struct r300_screen *rscreen,
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. */
}
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");
projects / mesa.git / blobdiff