[Mesa-dev] [PATCH v3 4/9] i965: Add and use a single miptree aux_buf field
Nanley Chery
nanleychery at gmail.com
Wed Apr 11 20:42:21 UTC 2018
We want to add and use a function that accesses the auxiliary buffer's
clear_color_bo and doesn't care if it has an MCS or HiZ buffer
specifically.
---
src/mesa/drivers/dri/i965/brw_blorp.c | 4 +-
src/mesa/drivers/dri/i965/brw_clear.c | 4 +-
src/mesa/drivers/dri/i965/brw_wm.c | 2 +-
src/mesa/drivers/dri/i965/gen6_depth_state.c | 6 +-
src/mesa/drivers/dri/i965/gen7_misc_state.c | 4 +-
src/mesa/drivers/dri/i965/gen8_depth_state.c | 6 +-
src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 106 +++++++++++++-------------
src/mesa/drivers/dri/i965/intel_mipmap_tree.h | 42 ++++------
src/mesa/drivers/dri/i965/intel_tex_image.c | 2 +-
9 files changed, 80 insertions(+), 96 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c b/src/mesa/drivers/dri/i965/brw_blorp.c
index 962a316c5cf..a1882abb7cb 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.c
+++ b/src/mesa/drivers/dri/i965/brw_blorp.c
@@ -1212,7 +1212,7 @@ do_single_blorp_clear(struct brw_context *brw, struct gl_framebuffer *fb,
/* If the MCS buffer hasn't been allocated yet, we need to allocate it now.
*/
- if (can_fast_clear && !irb->mt->mcs_buf) {
+ if (can_fast_clear && !irb->mt->aux_buf) {
assert(irb->mt->aux_usage == ISL_AUX_USAGE_CCS_D);
if (!intel_miptree_alloc_ccs(brw, irb->mt)) {
/* There are a few reasons in addition to out-of-memory, that can
@@ -1611,7 +1611,7 @@ intel_hiz_exec(struct brw_context *brw, struct intel_mipmap_tree *mt,
brw_emit_pipe_control_flush(brw, PIPE_CONTROL_DEPTH_STALL);
}
- assert(mt->aux_usage == ISL_AUX_USAGE_HIZ && mt->hiz_buf);
+ assert(mt->aux_usage == ISL_AUX_USAGE_HIZ && mt->aux_buf);
struct isl_surf isl_tmp[2];
struct blorp_surf surf;
diff --git a/src/mesa/drivers/dri/i965/brw_clear.c b/src/mesa/drivers/dri/i965/brw_clear.c
index 487de9b8997..3d540d6d905 100644
--- a/src/mesa/drivers/dri/i965/brw_clear.c
+++ b/src/mesa/drivers/dri/i965/brw_clear.c
@@ -240,7 +240,7 @@ brw_fast_clear_depth(struct gl_context *ctx)
* buffer when doing a fast clear. Since we are skipping the fast
* clear here, we need to update the clear color ourselves.
*/
- uint32_t clear_offset = mt->hiz_buf->clear_color_offset;
+ uint32_t clear_offset = mt->aux_buf->clear_color_offset;
union isl_color_value clear_color = { .f32 = { clear_value, } };
/* We can't update the clear color while the hardware is still using
@@ -249,7 +249,7 @@ brw_fast_clear_depth(struct gl_context *ctx)
*/
brw_emit_pipe_control_flush(brw, PIPE_CONTROL_CS_STALL);
for (int i = 0; i < 4; i++) {
- brw_store_data_imm32(brw, mt->hiz_buf->clear_color_bo,
+ brw_store_data_imm32(brw, mt->aux_buf->clear_color_bo,
clear_offset + i * 4, clear_color.u32[i]);
}
brw_emit_pipe_control_flush(brw, PIPE_CONTROL_STATE_CACHE_INVALIDATE);
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 68d4ab88d77..94048cd758f 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -384,7 +384,7 @@ brw_populate_sampler_prog_key_data(struct gl_context *ctx,
if (intel_tex->mt->aux_usage == ISL_AUX_USAGE_MCS) {
assert(devinfo->gen >= 7);
assert(intel_tex->mt->surf.samples > 1);
- assert(intel_tex->mt->mcs_buf);
+ assert(intel_tex->mt->aux_buf);
assert(intel_tex->mt->surf.msaa_layout == ISL_MSAA_LAYOUT_ARRAY);
key->compressed_multisample_layout_mask |= 1 << s;
diff --git a/src/mesa/drivers/dri/i965/gen6_depth_state.c b/src/mesa/drivers/dri/i965/gen6_depth_state.c
index 3a66b42fec1..8a1d5808051 100644
--- a/src/mesa/drivers/dri/i965/gen6_depth_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_depth_state.c
@@ -160,13 +160,13 @@ gen6_emit_depth_stencil_hiz(struct brw_context *brw,
assert(depth_mt);
uint32_t offset;
- isl_surf_get_image_offset_B_tile_sa(&depth_mt->hiz_buf->surf,
+ isl_surf_get_image_offset_B_tile_sa(&depth_mt->aux_buf->surf,
lod, 0, 0, &offset, NULL, NULL);
BEGIN_BATCH(3);
OUT_BATCH((_3DSTATE_HIER_DEPTH_BUFFER << 16) | (3 - 2));
- OUT_BATCH(depth_mt->hiz_buf->surf.row_pitch - 1);
- OUT_RELOC(depth_mt->hiz_buf->bo, RELOC_WRITE, offset);
+ OUT_BATCH(depth_mt->aux_buf->surf.row_pitch - 1);
+ OUT_RELOC(depth_mt->aux_buf->bo, RELOC_WRITE, offset);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(3);
diff --git a/src/mesa/drivers/dri/i965/gen7_misc_state.c b/src/mesa/drivers/dri/i965/gen7_misc_state.c
index 58f0a1bdbfd..1ce76585f2b 100644
--- a/src/mesa/drivers/dri/i965/gen7_misc_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_misc_state.c
@@ -149,8 +149,8 @@ gen7_emit_depth_stencil_hiz(struct brw_context *brw,
BEGIN_BATCH(3);
OUT_BATCH(GEN7_3DSTATE_HIER_DEPTH_BUFFER << 16 | (3 - 2));
OUT_BATCH((mocs << 25) |
- (depth_mt->hiz_buf->pitch - 1));
- OUT_RELOC(depth_mt->hiz_buf->bo, RELOC_WRITE, 0);
+ (depth_mt->aux_buf->pitch - 1));
+ OUT_RELOC(depth_mt->aux_buf->bo, RELOC_WRITE, 0);
ADVANCE_BATCH();
}
diff --git a/src/mesa/drivers/dri/i965/gen8_depth_state.c b/src/mesa/drivers/dri/i965/gen8_depth_state.c
index 27705d35df9..0fc027313b4 100644
--- a/src/mesa/drivers/dri/i965/gen8_depth_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_depth_state.c
@@ -94,9 +94,9 @@ emit_depth_packets(struct brw_context *brw,
assert(depth_mt);
BEGIN_BATCH(5);
OUT_BATCH(GEN7_3DSTATE_HIER_DEPTH_BUFFER << 16 | (5 - 2));
- OUT_BATCH((depth_mt->hiz_buf->pitch - 1) | mocs_wb << 25);
- OUT_RELOC64(depth_mt->hiz_buf->bo, RELOC_WRITE, 0);
- OUT_BATCH(depth_mt->hiz_buf->qpitch >> 2);
+ OUT_BATCH((depth_mt->aux_buf->pitch - 1) | mocs_wb << 25);
+ OUT_RELOC64(depth_mt->aux_buf->bo, RELOC_WRITE, 0);
+ OUT_BATCH(depth_mt->aux_buf->qpitch >> 2);
ADVANCE_BATCH();
}
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index ba5b02bc0aa..c5791835409 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -950,7 +950,7 @@ create_ccs_buf_for_image(struct brw_context *brw,
assert(mt->last_level == 0);
/* We shouldn't already have a CCS */
- assert(!mt->mcs_buf);
+ assert(!mt->aux_buf);
if (!isl_surf_get_ccs_surf(&brw->isl_dev, &mt->surf, &temp_ccs_surf,
image->aux_pitch))
@@ -959,14 +959,14 @@ create_ccs_buf_for_image(struct brw_context *brw,
assert(image->aux_offset < image->bo->size);
assert(temp_ccs_surf.size <= image->bo->size - image->aux_offset);
- mt->mcs_buf = calloc(sizeof(*mt->mcs_buf), 1);
- if (mt->mcs_buf == NULL)
+ mt->aux_buf = calloc(sizeof(*mt->aux_buf), 1);
+ if (mt->aux_buf == NULL)
return false;
mt->aux_state = create_aux_state_map(mt, initial_state);
if (!mt->aux_state) {
- free(mt->mcs_buf);
- mt->mcs_buf = NULL;
+ free(mt->aux_buf);
+ mt->aux_buf = NULL;
return false;
}
@@ -977,24 +977,24 @@ create_ccs_buf_for_image(struct brw_context *brw,
*/
const struct gen_device_info *devinfo = &brw->screen->devinfo;
if (devinfo->gen >= 10) {
- mt->mcs_buf->clear_color_bo =
+ mt->aux_buf->clear_color_bo =
brw_bo_alloc(brw->bufmgr, "clear_color_bo",
brw->isl_dev.ss.clear_color_state_size);
- if (!mt->mcs_buf->clear_color_bo) {
- free(mt->mcs_buf);
- mt->mcs_buf = NULL;
+ if (!mt->aux_buf->clear_color_bo) {
+ free(mt->aux_buf);
+ mt->aux_buf = NULL;
return false;
}
}
- mt->mcs_buf->bo = image->bo;
+ mt->aux_buf->bo = image->bo;
brw_bo_reference(image->bo);
- mt->mcs_buf->offset = image->aux_offset;
- mt->mcs_buf->size = image->bo->size - image->aux_offset;
- mt->mcs_buf->pitch = image->aux_pitch;
- mt->mcs_buf->qpitch = 0;
- mt->mcs_buf->surf = temp_ccs_surf;
+ mt->aux_buf->offset = image->aux_offset;
+ mt->aux_buf->size = image->bo->size - image->aux_offset;
+ mt->aux_buf->pitch = image->aux_pitch;
+ mt->aux_buf->qpitch = 0;
+ mt->aux_buf->surf = temp_ccs_surf;
return true;
}
@@ -1249,7 +1249,7 @@ intel_miptree_release(struct intel_mipmap_tree **mt)
brw_bo_unreference((*mt)->bo);
intel_miptree_release(&(*mt)->stencil_mt);
intel_miptree_release(&(*mt)->r8stencil_mt);
- intel_miptree_aux_buffer_free(intel_miptree_get_aux_buffer(*mt));
+ intel_miptree_aux_buffer_free((*mt)->aux_buf);
free_aux_state_map((*mt)->aux_state);
intel_miptree_release(&(*mt)->plane[0]);
@@ -1660,7 +1660,7 @@ intel_miptree_init_mcs(struct brw_context *brw,
struct intel_mipmap_tree *mt,
int init_value)
{
- assert(mt->mcs_buf != NULL);
+ assert(mt->aux_buf != NULL);
/* From the Ivy Bridge PRM, Vol 2 Part 1 p326:
*
@@ -1672,16 +1672,16 @@ intel_miptree_init_mcs(struct brw_context *brw,
*
* Note: the clear value for MCS buffers is all 1's, so we memset to 0xff.
*/
- void *map = brw_bo_map(brw, mt->mcs_buf->bo, MAP_WRITE | MAP_RAW);
+ void *map = brw_bo_map(brw, mt->aux_buf->bo, MAP_WRITE | MAP_RAW);
if (unlikely(map == NULL)) {
fprintf(stderr, "Failed to map mcs buffer into GTT\n");
- brw_bo_unreference(mt->mcs_buf->bo);
- free(mt->mcs_buf);
+ brw_bo_unreference(mt->aux_buf->bo);
+ free(mt->aux_buf);
return;
}
void *data = map;
- memset(data, init_value, mt->mcs_buf->size);
- brw_bo_unmap(mt->mcs_buf->bo);
+ memset(data, init_value, mt->aux_buf->size);
+ brw_bo_unmap(mt->aux_buf->bo);
}
static struct intel_miptree_aux_buffer *
@@ -1737,7 +1737,7 @@ intel_miptree_alloc_mcs(struct brw_context *brw,
GLuint num_samples)
{
assert(brw->screen->devinfo.gen >= 7); /* MCS only used on Gen7+ */
- assert(mt->mcs_buf == NULL);
+ assert(mt->aux_buf == NULL);
assert(mt->aux_usage == ISL_AUX_USAGE_MCS);
/* Multisampled miptrees are only supported for single level. */
@@ -1759,9 +1759,9 @@ intel_miptree_alloc_mcs(struct brw_context *brw,
* to be just used by the GPU.
*/
const uint32_t alloc_flags = 0;
- mt->mcs_buf = intel_alloc_aux_buffer(brw, "mcs-miptree",
+ mt->aux_buf = intel_alloc_aux_buffer(brw, "mcs-miptree",
&temp_mcs_surf, alloc_flags, mt);
- if (!mt->mcs_buf) {
+ if (!mt->aux_buf) {
free(aux_state);
return false;
}
@@ -1777,7 +1777,7 @@ bool
intel_miptree_alloc_ccs(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
- assert(mt->mcs_buf == NULL);
+ assert(mt->aux_buf == NULL);
assert(mt->aux_usage == ISL_AUX_USAGE_CCS_E ||
mt->aux_usage == ISL_AUX_USAGE_CCS_D);
@@ -1808,9 +1808,9 @@ intel_miptree_alloc_ccs(struct brw_context *brw,
*/
const uint32_t alloc_flags = mt->aux_usage == ISL_AUX_USAGE_CCS_E ?
BO_ALLOC_ZEROED : BO_ALLOC_BUSY;
- mt->mcs_buf = intel_alloc_aux_buffer(brw, "ccs-miptree",
+ mt->aux_buf = intel_alloc_aux_buffer(brw, "ccs-miptree",
&temp_ccs_surf, alloc_flags, mt);
- if (!mt->mcs_buf) {
+ if (!mt->aux_buf) {
free(aux_state);
return false;
}
@@ -1832,7 +1832,7 @@ intel_miptree_level_enable_hiz(struct brw_context *brw,
{
const struct gen_device_info *devinfo = &brw->screen->devinfo;
- assert(mt->hiz_buf);
+ assert(mt->aux_buf);
assert(mt->surf.size > 0);
if (devinfo->gen >= 8 || devinfo->is_haswell) {
@@ -1860,7 +1860,7 @@ bool
intel_miptree_alloc_hiz(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
- assert(mt->hiz_buf == NULL);
+ assert(mt->aux_buf == NULL);
assert(mt->aux_usage == ISL_AUX_USAGE_HIZ);
enum isl_aux_state **aux_state =
@@ -1875,10 +1875,10 @@ intel_miptree_alloc_hiz(struct brw_context *brw,
assert(ok);
const uint32_t alloc_flags = BO_ALLOC_BUSY;
- mt->hiz_buf = intel_alloc_aux_buffer(brw, "hiz-miptree",
+ mt->aux_buf = intel_alloc_aux_buffer(brw, "hiz-miptree",
&temp_hiz_surf, alloc_flags, mt);
- if (!mt->hiz_buf) {
+ if (!mt->aux_buf) {
free(aux_state);
return false;
}
@@ -1951,7 +1951,7 @@ intel_miptree_sample_with_hiz(struct brw_context *brw,
return false;
}
- if (!mt->hiz_buf) {
+ if (!mt->aux_buf) {
return false;
}
@@ -2031,7 +2031,7 @@ intel_miptree_has_color_unresolved(const struct intel_mipmap_tree *mt,
{
assert(_mesa_is_format_color_format(mt->format));
- if (!mt->mcs_buf)
+ if (!mt->aux_buf)
return false;
/* Clamp the level range to fit the miptree */
@@ -2058,7 +2058,7 @@ intel_miptree_check_color_resolve(const struct brw_context *brw,
const struct intel_mipmap_tree *mt,
unsigned level, unsigned layer)
{
- if (!mt->mcs_buf)
+ if (!mt->aux_buf)
return;
/* Fast color clear is supported for mipmapped surfaces only on Gen8+. */
@@ -2450,7 +2450,7 @@ intel_miptree_prepare_access(struct brw_context *brw,
break;
case ISL_AUX_USAGE_MCS:
- assert(mt->mcs_buf);
+ assert(mt->aux_buf);
assert(start_level == 0 && num_levels == 1);
const uint32_t level_layers =
miptree_layer_range_length(mt, 0, start_layer, num_layers);
@@ -2462,7 +2462,7 @@ intel_miptree_prepare_access(struct brw_context *brw,
case ISL_AUX_USAGE_CCS_D:
case ISL_AUX_USAGE_CCS_E:
- if (!mt->mcs_buf)
+ if (!mt->aux_buf)
return;
for (uint32_t l = 0; l < num_levels; l++) {
@@ -2478,7 +2478,7 @@ intel_miptree_prepare_access(struct brw_context *brw,
break;
case ISL_AUX_USAGE_HIZ:
- assert(mt->hiz_buf);
+ assert(mt->aux_buf);
for (uint32_t l = 0; l < num_levels; l++) {
const uint32_t level = start_level + l;
if (!intel_miptree_level_has_hiz(mt, level))
@@ -2512,7 +2512,7 @@ intel_miptree_finish_write(struct brw_context *brw,
break;
case ISL_AUX_USAGE_MCS:
- assert(mt->mcs_buf);
+ assert(mt->aux_buf);
for (uint32_t a = 0; a < num_layers; a++) {
intel_miptree_finish_mcs_write(brw, mt, start_layer + a,
aux_usage);
@@ -2521,7 +2521,7 @@ intel_miptree_finish_write(struct brw_context *brw,
case ISL_AUX_USAGE_CCS_D:
case ISL_AUX_USAGE_CCS_E:
- if (!mt->mcs_buf)
+ if (!mt->aux_buf)
return;
for (uint32_t a = 0; a < num_layers; a++) {
@@ -2552,7 +2552,7 @@ intel_miptree_get_aux_state(const struct intel_mipmap_tree *mt,
intel_miptree_check_level_layer(mt, level, layer);
if (_mesa_is_format_color_format(mt->format)) {
- assert(mt->mcs_buf != NULL);
+ assert(mt->aux_buf != NULL);
assert(mt->surf.samples == 1 ||
mt->surf.msaa_layout == ISL_MSAA_LAYOUT_ARRAY);
} else if (mt->format == MESA_FORMAT_S_UINT8) {
@@ -2573,7 +2573,7 @@ intel_miptree_set_aux_state(struct brw_context *brw,
num_layers = miptree_layer_range_length(mt, level, start_layer, num_layers);
if (_mesa_is_format_color_format(mt->format)) {
- assert(mt->mcs_buf != NULL);
+ assert(mt->aux_buf != NULL);
assert(mt->surf.samples == 1 ||
mt->surf.msaa_layout == ISL_MSAA_LAYOUT_ARRAY);
} else if (mt->format == MESA_FORMAT_S_UINT8) {
@@ -2636,7 +2636,7 @@ intel_miptree_texture_aux_usage(struct brw_context *brw,
case ISL_AUX_USAGE_CCS_D:
case ISL_AUX_USAGE_CCS_E:
- if (!mt->mcs_buf) {
+ if (!mt->aux_buf) {
assert(mt->aux_usage == ISL_AUX_USAGE_CCS_D);
return ISL_AUX_USAGE_NONE;
}
@@ -2724,12 +2724,12 @@ intel_miptree_render_aux_usage(struct brw_context *brw,
switch (mt->aux_usage) {
case ISL_AUX_USAGE_MCS:
- assert(mt->mcs_buf);
+ assert(mt->aux_buf);
return ISL_AUX_USAGE_MCS;
case ISL_AUX_USAGE_CCS_D:
case ISL_AUX_USAGE_CCS_E:
- if (!mt->mcs_buf) {
+ if (!mt->aux_buf) {
assert(mt->aux_usage == ISL_AUX_USAGE_CCS_D);
return ISL_AUX_USAGE_NONE;
}
@@ -2784,7 +2784,7 @@ intel_miptree_prepare_depth(struct brw_context *brw,
uint32_t start_layer, uint32_t layer_count)
{
intel_miptree_prepare_access(brw, mt, level, 1, start_layer, layer_count,
- mt->aux_usage, mt->hiz_buf != NULL);
+ mt->aux_usage, mt->aux_buf != NULL);
}
void
@@ -2795,7 +2795,7 @@ intel_miptree_finish_depth(struct brw_context *brw,
{
if (depth_written) {
intel_miptree_finish_write(brw, mt, level, start_layer, layer_count,
- mt->hiz_buf != NULL);
+ mt->aux_buf != NULL);
}
}
@@ -2819,7 +2819,7 @@ intel_miptree_prepare_external(struct brw_context *brw,
assert(mt->surf.logical_level0_px.depth == 1);
assert(mt->surf.logical_level0_px.array_len == 1);
assert(mt->surf.samples == 1);
- assert(mt->mcs_buf != NULL);
+ assert(mt->aux_buf != NULL);
aux_usage = mod_info->aux_usage;
supports_fast_clear = mod_info->supports_clear_color;
@@ -2834,7 +2834,7 @@ void
intel_miptree_finish_external(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
- if (!mt->mcs_buf)
+ if (!mt->aux_buf)
return;
/* We don't know the actual aux state of the aux surface. The previous
@@ -2875,11 +2875,9 @@ intel_miptree_make_shareable(struct brw_context *brw,
0, INTEL_REMAINING_LAYERS,
ISL_AUX_USAGE_NONE, false);
- struct intel_miptree_aux_buffer *aux_buf = intel_miptree_get_aux_buffer(mt);
- if (aux_buf) {
- intel_miptree_aux_buffer_free(aux_buf);
- mt->mcs_buf = NULL;
- mt->hiz_buf = NULL;
+ if (mt->aux_buf) {
+ intel_miptree_aux_buffer_free(mt->aux_buf);
+ mt->aux_buf = NULL;
for (uint32_t l = mt->first_level; l <= mt->last_level; ++l) {
mt->level[l].has_hiz = false;
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
index 8fe5c4add67..643de962d31 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
@@ -272,16 +272,6 @@ struct intel_mipmap_tree
*/
uint32_t offset;
- /**
- * \brief HiZ aux buffer
- *
- * To allocate the hiz buffer, use intel_miptree_alloc_hiz().
- *
- * To determine if hiz is enabled, do not check this pointer. Instead, use
- * intel_miptree_level_has_hiz().
- */
- struct intel_miptree_aux_buffer *hiz_buf;
-
/**
* \brief The type of auxiliary compression used by this miptree.
*
@@ -335,15 +325,22 @@ struct intel_mipmap_tree
bool r8stencil_needs_update;
/**
- * \brief MCS auxiliary buffer.
+ * \brief MCS or HiZ auxiliary buffer.
+ *
+ * For color miptrees:
+ * This buffer contains the "multisample control surface", which stores
+ * the necessary information to implement compressed MSAA
+ * (INTEL_MSAA_FORMAT_CMS) and "fast color clear" behaviour on Gen7+.
+ *
+ * NULL if no MCS buffer is in use for this surface.
*
- * This buffer contains the "multisample control surface", which stores
- * the necessary information to implement compressed MSAA
- * (INTEL_MSAA_FORMAT_CMS) and "fast color clear" behaviour on Gen7+.
+ * For depth miptrees:
+ * To allocate the hiz buffer, use intel_miptree_alloc_hiz().
*
- * NULL if no MCS buffer is in use for this surface.
+ * To determine if hiz is enabled, do not check this pointer. Instead,
+ * use intel_miptree_level_has_hiz().
*/
- struct intel_miptree_aux_buffer *mcs_buf;
+ struct intel_miptree_aux_buffer *aux_buf;
/**
* Planes 1 and 2 in case this is a planar surface.
@@ -488,18 +485,7 @@ get_isl_dim_layout(const struct gen_device_info *devinfo,
static inline struct intel_miptree_aux_buffer *
intel_miptree_get_aux_buffer(const struct intel_mipmap_tree *mt)
{
- switch (mt->aux_usage) {
- case ISL_AUX_USAGE_MCS:
- case ISL_AUX_USAGE_CCS_D:
- case ISL_AUX_USAGE_CCS_E:
- return mt->mcs_buf;
- case ISL_AUX_USAGE_HIZ:
- return mt->hiz_buf;
- case ISL_AUX_USAGE_NONE:
- return NULL;
- default:
- unreachable("Invalid aux_usage!\n");
- }
+ return mt->aux_buf;
}
void
diff --git a/src/mesa/drivers/dri/i965/intel_tex_image.c b/src/mesa/drivers/dri/i965/intel_tex_image.c
index e25bc9a0c08..3fd227ad05d 100644
--- a/src/mesa/drivers/dri/i965/intel_tex_image.c
+++ b/src/mesa/drivers/dri/i965/intel_tex_image.c
@@ -543,7 +543,7 @@ intelReleaseTexBuffer(__DRIcontext *pDRICtx, GLint target,
* should be a no-op in almost all cases. On the off chance that someone
* ever triggers this, we should at least warn them.
*/
- if (intel_tex->mt->mcs_buf &&
+ if (intel_tex->mt->aux_buf &&
intel_miptree_get_aux_state(intel_tex->mt, 0, 0) !=
isl_drm_modifier_get_default_aux_state(intel_tex->mt->drm_modifier)) {
_mesa_warning(ctx, "Aux state changed between BindTexImage and "
--
2.16.2
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