struct ilo_image_params *params)
{
const struct ilo_image_info *info = params->info;
- enum pipe_format format = info->format;
- bool require_separate_stencil = false;
img->type = info->type;
- img->width0 = info->width;
- img->height0 = info->height;
- img->depth0 = info->depth;
- img->array_size = info->array_size;
- img->level_count = info->level_count;
- img->sample_count = info->sample_count;
/*
- * From the Sandy Bridge PRM, volume 2 part 1, page 317:
- *
- * "This field (Separate Stencil Buffer Enable) must be set to the same
- * value (enabled or disabled) as Hierarchical Depth Buffer Enable."
+ * From the Ivy Bridge PRM, volume 2 part 1, page 314:
*
- * GEN7+ requires separate stencil buffers.
+ * "The separate stencil buffer is always enabled, thus the field in
+ * 3DSTATE_DEPTH_BUFFER to explicitly enable the separate stencil
+ * buffer has been removed Surface formats with interleaved depth and
+ * stencil are no longer supported"
*/
- if (info->bind_zs) {
- if (ilo_dev_gen(params->dev) >= ILO_GEN(7))
- require_separate_stencil = true;
- else
- require_separate_stencil = (img->aux.type == ILO_IMAGE_AUX_HIZ);
- }
+ if (ilo_dev_gen(params->dev) >= ILO_GEN(7) && info->bind_zs) {
+ const struct util_format_description *desc =
+ util_format_description(info->format);
- switch (format) {
- case PIPE_FORMAT_ETC1_RGB8:
- format = PIPE_FORMAT_R8G8B8X8_UNORM;
- break;
- case PIPE_FORMAT_Z24_UNORM_S8_UINT:
- if (require_separate_stencil) {
- format = PIPE_FORMAT_Z24X8_UNORM;
- img->separate_stencil = true;
- }
- break;
- case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
- if (require_separate_stencil) {
- format = PIPE_FORMAT_Z32_FLOAT;
- img->separate_stencil = true;
- }
- break;
- default:
- break;
+ assert(info->format == PIPE_FORMAT_S8_UINT ||
+ !util_format_has_stencil(desc));
}
- img->format = format;
- img->block_width = util_format_get_blockwidth(format);
- img->block_height = util_format_get_blockheight(format);
- img->block_size = util_format_get_blocksize(format);
+ img->format = info->format;
+ img->block_width = util_format_get_blockwidth(info->format);
+ img->block_height = util_format_get_blockheight(info->format);
+ img->block_size = util_format_get_blocksize(info->format);
+
+ img->width0 = info->width;
+ img->height0 = info->height;
+ img->depth0 = info->depth;
+ img->array_size = info->array_size;
+ img->level_count = info->level_count;
+ img->sample_count = info->sample_count;
params->valid_tilings = img_get_valid_tilings(img, params);
params->compressed = util_format_is_compressed(img->format);
if (!info->bind_zs)
return false;
- if (!util_format_has_depth(desc))
- return false;
-
- /*
- * As can be seen in img_calculate_hiz_size(), HiZ may not be enabled
- * for every level. This is generally fine except on GEN6, where HiZ and
- * separate stencil are enabled and disabled at the same time. When the
- * format is PIPE_FORMAT_Z32_FLOAT_S8X24_UINT, enabling and disabling HiZ
- * can result in incompatible formats.
- */
- if (ilo_dev_gen(params->dev) == ILO_GEN(6) &&
- info->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT &&
- info->level_count > 1)
+ if (!util_format_has_depth(desc) || util_format_has_stencil(desc))
return false;
return true;
{
/* there are hard dependencies between every function here */
- img_init_aux(img, params);
img_init_size_and_format(img, params);
+ img_init_aux(img, params);
img_init_walk(img, params);
img_init_tiling(img, params);
img_init_alignments(img, params);
}
}
+static enum pipe_format
+resource_get_image_format(const struct pipe_resource *templ,
+ const struct ilo_dev *dev,
+ bool *separate_stencil_ret)
+{
+ enum pipe_format format = templ->format;
+ bool separate_stencil;
+
+ /* silently promote ETC1 */
+ if (templ->format == PIPE_FORMAT_ETC1_RGB8)
+ format = PIPE_FORMAT_R8G8B8X8_UNORM;
+
+ /* separate stencil buffers */
+ separate_stencil = false;
+ if ((templ->bind & PIPE_BIND_DEPTH_STENCIL) &&
+ util_format_is_depth_and_stencil(templ->format)) {
+ switch (templ->format) {
+ case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
+ /* Gen6 requires HiZ to be available for all levels */
+ if (ilo_dev_gen(dev) >= ILO_GEN(7) || templ->last_level == 0) {
+ format = PIPE_FORMAT_Z32_FLOAT;
+ separate_stencil = true;
+ }
+ break;
+ case PIPE_FORMAT_Z24_UNORM_S8_UINT:
+ format = PIPE_FORMAT_Z24X8_UNORM;
+ separate_stencil = true;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (separate_stencil_ret)
+ *separate_stencil_ret = separate_stencil;
+
+ return format;
+}
+
static void
resource_get_image_info(const struct pipe_resource *templ,
const struct ilo_dev *dev,
if (!tex->imported && !tex_create_bo(tex))
return false;
- /* allocate separate stencil resource */
- if (tex->image.separate_stencil && !tex_create_separate_stencil(tex))
- return false;
-
switch (tex->image.aux.type) {
case ILO_IMAGE_AUX_HIZ:
if (!tex_create_hiz(tex))
static bool
tex_init_image(struct ilo_texture *tex,
- const struct winsys_handle *handle)
+ const struct winsys_handle *handle,
+ bool *separate_stencil)
{
struct ilo_screen *is = ilo_screen(tex->base.screen);
const struct pipe_resource *templ = &tex->base;
struct ilo_image *img = &tex->image;
struct intel_bo *imported_bo = NULL;;
+ enum pipe_format image_format;
struct ilo_image_info info;
- resource_get_image_info(templ, &is->dev, templ->format, &info);
+ image_format = resource_get_image_format(templ,
+ &is->dev, separate_stencil);
+ resource_get_image_info(templ, &is->dev, image_format, &info);
if (handle) {
imported_bo = tex_import_handle(tex, handle, &info);
return false;
}
+ /*
+ * HiZ requires 8x4 alignment and some levels might need HiZ disabled. It
+ * is generally fine except on Gen6, where HiZ and separate stencil must be
+ * enabled together. For PIPE_FORMAT_Z24X8_UNORM with separate stencil, we
+ * can live with stencil values being interleaved for levels where HiZ is
+ * disabled. But it is not the case for PIPE_FORMAT_Z32_FLOAT with
+ * separate stencil. If HiZ was disabled for a level, we had to change the
+ * format to PIPE_FORMAT_Z32_FLOAT_S8X24_UINT for the level and that format
+ * had a different bpp. In other words, HiZ has to be available for all
+ * levels.
+ */
+ if (ilo_dev_gen(&is->dev) == ILO_GEN(6) &&
+ templ->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT &&
+ image_format == PIPE_FORMAT_Z32_FLOAT &&
+ img->aux.enables != (1 << templ->last_level)) {
+ image_format = templ->format;
+ info.format = image_format;
+
+ memset(img, 0, sizeof(*img));
+ if (!ilo_image_init(img, &is->dev, &info)) {
+ intel_bo_unref(imported_bo);
+ return false;
+ }
+ }
+
if (img->bo_height > ilo_max_resource_size / img->bo_stride ||
!ilo_vma_init(&tex->vma, &is->dev, img->bo_stride * img->bo_height,
4096)) {
if (templ->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT) {
/* require on-the-fly tiling/untiling or format conversion */
- if (img->tiling == GEN8_TILING_W || img->separate_stencil ||
- img->format != templ->format)
+ if (img->tiling == GEN8_TILING_W || *separate_stencil ||
+ image_format != templ->format)
return false;
}
const struct winsys_handle *handle)
{
struct ilo_texture *tex;
+ bool separate_stencil;
tex = CALLOC_STRUCT(ilo_texture);
if (!tex)
tex->base.screen = screen;
pipe_reference_init(&tex->base.reference, 1);
- if (!tex_init_image(tex, handle)) {
+ if (!tex_init_image(tex, handle, &separate_stencil)) {
FREE(tex);
return NULL;
}
- if (!tex_alloc_bos(tex)) {
+ if (!tex_alloc_bos(tex) ||
+ (separate_stencil && !tex_create_separate_stencil(tex))) {
tex_destroy(tex);
return NULL;
}
const struct pipe_resource *templ)
{
struct ilo_screen *is = ilo_screen(screen);
+ enum pipe_format image_format;
struct ilo_image_info info;
struct ilo_image img;
if (templ->target == PIPE_BUFFER)
return (templ->width0 <= ilo_max_resource_size);
- resource_get_image_info(templ, &is->dev, templ->format, &info);
+ image_format = resource_get_image_format(templ, &is->dev, NULL);
+ resource_get_image_info(templ, &is->dev, image_format, &info);
memset(&img, 0, sizeof(img));
ilo_image_init(&img, &ilo_screen(screen)->dev, &info);
+ /* as in tex_init_image() */
+ if (ilo_dev_gen(&is->dev) == ILO_GEN(6) &&
+ templ->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT &&
+ image_format == PIPE_FORMAT_Z32_FLOAT &&
+ img.aux.enables != (1 << templ->last_level)) {
+ info.format = templ->format;
+ memset(&img, 0, sizeof(img));
+ ilo_image_init(&img, &ilo_screen(screen)->dev, &info);
+ }
+
return (img.bo_height <= ilo_max_resource_size / img.bo_stride);
}
projects / mesa.git / commitdiff