mesa/src/gallium/drivers/crocus/crocus_clear.c

860 lines
32 KiB
C

/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <errno.h>
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/p_context.h"
#include "pipe/p_screen.h"
#include "util/u_inlines.h"
#include "util/u_surface.h"
#include "util/format/u_format.h"
#include "util/u_upload_mgr.h"
#include "util/ralloc.h"
#include "crocus_context.h"
#include "crocus_resource.h"
#include "crocus_screen.h"
#include "intel/compiler/brw_compiler.h"
#include "util/format_srgb.h"
static bool
crocus_is_color_fast_clear_compatible(struct crocus_context *ice,
enum isl_format format,
const union isl_color_value color)
{
if (isl_format_has_int_channel(format)) {
perf_debug(&ice->dbg, "Integer fast clear not enabled for %s",
isl_format_get_name(format));
return false;
}
for (int i = 0; i < 4; i++) {
if (!isl_format_has_color_component(format, i)) {
continue;
}
if (color.f32[i] != 0.0f && color.f32[i] != 1.0f) {
return false;
}
}
return true;
}
static bool
can_fast_clear_color(struct crocus_context *ice,
struct pipe_resource *p_res,
unsigned level,
const struct pipe_box *box,
bool render_condition_enabled,
enum isl_format format,
enum isl_format render_format,
union isl_color_value color)
{
struct crocus_resource *res = (void *) p_res;
if (INTEL_DEBUG & DEBUG_NO_FAST_CLEAR)
return false;
if (!isl_aux_usage_has_fast_clears(res->aux.usage))
return false;
/* Check for partial clear */
if (box->x > 0 || box->y > 0 ||
box->width < minify(p_res->width0, level) ||
box->height < minify(p_res->height0, level)) {
return false;
}
/* Avoid conditional fast clears to maintain correct tracking of the aux
* state (see iris_resource_finish_write for more info). Note that partial
* fast clears (if they existed) would not pose a problem with conditional
* rendering.
*/
if (render_condition_enabled &&
ice->state.predicate == CROCUS_PREDICATE_STATE_USE_BIT) {
return false;
}
/* We store clear colors as floats or uints as needed. If there are
* texture views in play, the formats will not properly be respected
* during resolves because the resolve operations only know about the
* resource and not the renderbuffer.
*/
if (isl_format_srgb_to_linear(render_format) !=
isl_format_srgb_to_linear(format)) {
return false;
}
/* XXX: if (irb->mt->supports_fast_clear)
* see intel_miptree_create_for_dri_image()
*/
if (!crocus_is_color_fast_clear_compatible(ice, format, color))
return false;
return true;
}
static union isl_color_value
convert_fast_clear_color(struct crocus_context *ice,
struct crocus_resource *res,
enum isl_format render_format,
const union isl_color_value color)
{
union isl_color_value override_color = color;
struct pipe_resource *p_res = (void *) res;
const enum pipe_format format = p_res->format;
const struct util_format_description *desc =
util_format_description(format);
unsigned colormask = util_format_colormask(desc);
if (util_format_is_intensity(format) ||
util_format_is_luminance(format) ||
util_format_is_luminance_alpha(format)) {
override_color.u32[1] = override_color.u32[0];
override_color.u32[2] = override_color.u32[0];
if (util_format_is_intensity(format))
override_color.u32[3] = override_color.u32[0];
} else {
for (int chan = 0; chan < 3; chan++) {
if (!(colormask & (1 << chan)))
override_color.u32[chan] = 0;
}
}
if (util_format_is_unorm(format)) {
for (int i = 0; i < 4; i++)
override_color.f32[i] = CLAMP(override_color.f32[i], 0.0f, 1.0f);
} else if (util_format_is_snorm(format)) {
for (int i = 0; i < 4; i++)
override_color.f32[i] = CLAMP(override_color.f32[i], -1.0f, 1.0f);
} else if (util_format_is_pure_uint(format)) {
for (int i = 0; i < 4; i++) {
unsigned bits = util_format_get_component_bits(
format, UTIL_FORMAT_COLORSPACE_RGB, i);
if (bits < 32) {
uint32_t max = (1u << bits) - 1;
override_color.u32[i] = MIN2(override_color.u32[i], max);
}
}
} else if (util_format_is_pure_sint(format)) {
for (int i = 0; i < 4; i++) {
unsigned bits = util_format_get_component_bits(
format, UTIL_FORMAT_COLORSPACE_RGB, i);
if (bits < 32) {
int32_t max = (1 << (bits - 1)) - 1;
int32_t min = -(1 << (bits - 1));
override_color.i32[i] = CLAMP(override_color.i32[i], min, max);
}
}
} else if (format == PIPE_FORMAT_R11G11B10_FLOAT ||
format == PIPE_FORMAT_R9G9B9E5_FLOAT) {
/* these packed float formats only store unsigned values */
for (int i = 0; i < 4; i++)
override_color.f32[i] = MAX2(override_color.f32[i], 0.0f);
}
if (!(colormask & 1 << 3)) {
if (util_format_is_pure_integer(format))
override_color.u32[3] = 1;
else
override_color.f32[3] = 1.0f;
}
/* Handle linear to SRGB conversion */
if (isl_format_is_srgb(render_format)) {
for (int i = 0; i < 3; i++) {
override_color.f32[i] =
util_format_linear_to_srgb_float(override_color.f32[i]);
}
}
return override_color;
}
static void
fast_clear_color(struct crocus_context *ice,
struct crocus_resource *res,
unsigned level,
const struct pipe_box *box,
enum isl_format format,
union isl_color_value color,
enum blorp_batch_flags blorp_flags)
{
struct crocus_batch *batch = &ice->batches[CROCUS_BATCH_RENDER];
struct crocus_screen *screen = batch->screen;
struct pipe_resource *p_res = (void *) res;
color = convert_fast_clear_color(ice, res, format, color);
bool color_changed = !!memcmp(&res->aux.clear_color, &color,
sizeof(color));
if (color_changed) {
/* If we are clearing to a new clear value, we need to resolve fast
* clears from other levels/layers first, since we can't have different
* levels/layers with different fast clear colors.
*/
for (unsigned res_lvl = 0; res_lvl < res->surf.levels; res_lvl++) {
const unsigned level_layers =
crocus_get_num_logical_layers(res, res_lvl);
for (unsigned layer = 0; layer < level_layers; layer++) {
if (res_lvl == level &&
layer >= box->z &&
layer < box->z + box->depth) {
/* We're going to clear this layer anyway. Leave it alone. */
continue;
}
enum isl_aux_state aux_state =
crocus_resource_get_aux_state(res, res_lvl, layer);
if (aux_state != ISL_AUX_STATE_CLEAR &&
aux_state != ISL_AUX_STATE_PARTIAL_CLEAR &&
aux_state != ISL_AUX_STATE_COMPRESSED_CLEAR) {
/* This slice doesn't have any fast-cleared bits. */
continue;
}
/* If we got here, then the level may have fast-clear bits that use
* the old clear value. We need to do a color resolve to get rid
* of their use of the clear color before we can change it.
* Fortunately, few applications ever change their clear color at
* different levels/layers, so this shouldn't happen often.
*/
crocus_resource_prepare_access(ice, res,
res_lvl, 1, layer, 1,
res->aux.usage,
false);
perf_debug(&ice->dbg,
"Resolving resource (%p) level %d, layer %d: color changing from "
"(%0.2f, %0.2f, %0.2f, %0.2f) to "
"(%0.2f, %0.2f, %0.2f, %0.2f)\n",
res, res_lvl, layer,
res->aux.clear_color.f32[0],
res->aux.clear_color.f32[1],
res->aux.clear_color.f32[2],
res->aux.clear_color.f32[3],
color.f32[0], color.f32[1], color.f32[2], color.f32[3]);
}
}
}
crocus_resource_set_clear_color(ice, res, color);
/* If the buffer is already in ISL_AUX_STATE_CLEAR, and the color hasn't
* changed, the clear is redundant and can be skipped.
*/
const enum isl_aux_state aux_state =
crocus_resource_get_aux_state(res, level, box->z);
if (!color_changed && box->depth == 1 && aux_state == ISL_AUX_STATE_CLEAR)
return;
/* Ivybrigde PRM Vol 2, Part 1, "11.7 MCS Buffer for Render Target(s)":
*
* "Any transition from any value in {Clear, Render, Resolve} to a
* different value in {Clear, Render, Resolve} requires end of pipe
* synchronization."
*
* In other words, fast clear ops are not properly synchronized with
* other drawing. We need to use a PIPE_CONTROL to ensure that the
* contents of the previous draw hit the render target before we resolve
* and again afterwards to ensure that the resolve is complete before we
* do any more regular drawing.
*/
crocus_emit_end_of_pipe_sync(batch,
"fast clear: pre-flush",
PIPE_CONTROL_RENDER_TARGET_FLUSH);
/* If we reach this point, we need to fast clear to change the state to
* ISL_AUX_STATE_CLEAR, or to update the fast clear color (or both).
*/
blorp_flags |= color_changed ? 0 : BLORP_BATCH_NO_UPDATE_CLEAR_COLOR;
struct blorp_batch blorp_batch;
blorp_batch_init(&ice->blorp, &blorp_batch, batch, blorp_flags);
struct blorp_surf surf;
crocus_blorp_surf_for_resource(&screen->vtbl, &batch->screen->isl_dev, &surf,
p_res, res->aux.usage, level, true);
/* In newer gens (> 9), the hardware will do a linear -> sRGB conversion of
* the clear color during the fast clear, if the surface format is of sRGB
* type. We use the linear version of the surface format here to prevent
* that from happening, since we already do our own linear -> sRGB
* conversion in convert_fast_clear_color().
*/
blorp_fast_clear(&blorp_batch, &surf, isl_format_srgb_to_linear(format),
ISL_SWIZZLE_IDENTITY,
level, box->z, box->depth,
box->x, box->y, box->x + box->width,
box->y + box->height);
blorp_batch_finish(&blorp_batch);
crocus_emit_end_of_pipe_sync(batch,
"fast clear: post flush",
PIPE_CONTROL_RENDER_TARGET_FLUSH);
crocus_resource_set_aux_state(ice, res, level, box->z,
box->depth, ISL_AUX_STATE_CLEAR);
ice->state.stage_dirty |= CROCUS_ALL_STAGE_DIRTY_BINDINGS;
return;
}
static void
clear_color(struct crocus_context *ice,
struct pipe_resource *p_res,
unsigned level,
const struct pipe_box *box,
bool render_condition_enabled,
enum isl_format format,
struct isl_swizzle swizzle,
union isl_color_value color)
{
struct crocus_resource *res = (void *) p_res;
struct crocus_batch *batch = &ice->batches[CROCUS_BATCH_RENDER];
struct crocus_screen *screen = batch->screen;
const struct intel_device_info *devinfo = &batch->screen->devinfo;
enum blorp_batch_flags blorp_flags = 0;
if (render_condition_enabled) {
if (!crocus_check_conditional_render(ice))
return;
if (ice->state.predicate == CROCUS_PREDICATE_STATE_USE_BIT)
blorp_flags |= BLORP_BATCH_PREDICATE_ENABLE;
}
if (p_res->target == PIPE_BUFFER)
util_range_add(&res->base, &res->valid_buffer_range, box->x, box->x + box->width);
crocus_batch_maybe_flush(batch, 1500);
bool can_fast_clear = can_fast_clear_color(ice, p_res, level, box,
render_condition_enabled,
res->surf.format, format, color);
if (can_fast_clear) {
fast_clear_color(ice, res, level, box, format, color,
blorp_flags);
return;
}
bool color_write_disable[4] = { false, false, false, false };
enum isl_aux_usage aux_usage =
crocus_resource_render_aux_usage(ice, res, format,
false, false);
crocus_resource_prepare_render(ice, res, level,
box->z, box->depth, aux_usage);
struct blorp_surf surf;
crocus_blorp_surf_for_resource(&screen->vtbl, &batch->screen->isl_dev, &surf,
p_res, aux_usage, level, true);
struct blorp_batch blorp_batch;
blorp_batch_init(&ice->blorp, &blorp_batch, batch, blorp_flags);
if (!isl_format_supports_rendering(devinfo, format) &&
isl_format_is_rgbx(format))
format = isl_format_rgbx_to_rgba(format);
blorp_clear(&blorp_batch, &surf, format, swizzle,
level, box->z, box->depth, box->x, box->y,
box->x + box->width, box->y + box->height,
color, color_write_disable);
blorp_batch_finish(&blorp_batch);
crocus_flush_and_dirty_for_history(ice, batch, res,
PIPE_CONTROL_RENDER_TARGET_FLUSH,
"cache history: post color clear");
crocus_resource_finish_render(ice, res, level,
box->z, box->depth, aux_usage);
}
static bool
can_fast_clear_depth(struct crocus_context *ice,
struct crocus_resource *res,
unsigned level,
const struct pipe_box *box,
bool render_condition_enabled,
float depth)
{
struct pipe_resource *p_res = (void *) res;
struct pipe_context *ctx = (void *) ice;
struct crocus_screen *screen = (void *) ctx->screen;
const struct intel_device_info *devinfo = &screen->devinfo;
if (devinfo->ver < 6)
return false;
if (INTEL_DEBUG & DEBUG_NO_FAST_CLEAR)
return false;
/* Check for partial clears */
if (box->x > 0 || box->y > 0 ||
box->width < u_minify(p_res->width0, level) ||
box->height < u_minify(p_res->height0, level)) {
return false;
}
/* Avoid conditional fast clears to maintain correct tracking of the aux
* state (see iris_resource_finish_write for more info). Note that partial
* fast clears would not pose a problem with conditional rendering.
*/
if (render_condition_enabled &&
ice->state.predicate == CROCUS_PREDICATE_STATE_USE_BIT) {
return false;
}
if (!crocus_resource_level_has_hiz(res, level))
return false;
if (res->base.format == PIPE_FORMAT_Z16_UNORM) {
/* From the Sandy Bridge PRM, volume 2 part 1, page 314:
*
* "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be
* enabled (the legacy method of clearing must be performed):
*
* - DevSNB{W/A}]: When depth buffer format is D16_UNORM and the
* width of the map (LOD0) is not multiple of 16, fast clear
* optimization must be disabled.
*/
if (devinfo->ver == 6 &&
(minify(res->surf.phys_level0_sa.width,
level) % 16) != 0)
return false;
}
return true;
}
static void
fast_clear_depth(struct crocus_context *ice,
struct crocus_resource *res,
unsigned level,
const struct pipe_box *box,
float depth)
{
struct pipe_resource *p_res = (void *) res;
struct crocus_batch *batch = &ice->batches[CROCUS_BATCH_RENDER];
/* Quantize the clear value to what can be stored in the actual depth
* buffer. This makes the following check more accurate because it now
* checks if the actual depth bits will match. It also prevents us from
* getting a too-accurate depth value during depth testing or when sampling
* with HiZ enabled.
*/
const unsigned nbits = p_res->format == PIPE_FORMAT_Z16_UNORM ? 16 : 24;
const uint32_t depth_max = (1 << nbits) - 1;
depth = p_res->format == PIPE_FORMAT_Z32_FLOAT ? depth :
(unsigned)(depth * depth_max) / (float)depth_max;
bool update_clear_depth = false;
/* If we're clearing to a new clear value, then we need to resolve any clear
* flags out of the HiZ buffer into the real depth buffer.
*/
if (res->aux.clear_color.f32[0] != depth) {
for (unsigned res_level = 0; res_level < res->surf.levels; res_level++) {
if (!crocus_resource_level_has_hiz(res, res_level))
continue;
const unsigned level_layers =
crocus_get_num_logical_layers(res, res_level);
for (unsigned layer = 0; layer < level_layers; layer++) {
if (res_level == level &&
layer >= box->z &&
layer < box->z + box->depth) {
/* We're going to clear this layer anyway. Leave it alone. */
continue;
}
enum isl_aux_state aux_state =
crocus_resource_get_aux_state(res, res_level, layer);
if (aux_state != ISL_AUX_STATE_CLEAR &&
aux_state != ISL_AUX_STATE_COMPRESSED_CLEAR) {
/* This slice doesn't have any fast-cleared bits. */
continue;
}
/* If we got here, then the level may have fast-clear bits that
* use the old clear value. We need to do a depth resolve to get
* rid of their use of the clear value before we can change it.
* Fortunately, few applications ever change their depth clear
* value so this shouldn't happen often.
*/
crocus_hiz_exec(ice, batch, res, res_level, layer, 1,
ISL_AUX_OP_FULL_RESOLVE, false);
crocus_resource_set_aux_state(ice, res, res_level, layer, 1,
ISL_AUX_STATE_RESOLVED);
}
}
const union isl_color_value clear_value = { .f32 = {depth, } };
crocus_resource_set_clear_color(ice, res, clear_value);
update_clear_depth = true;
}
for (unsigned l = 0; l < box->depth; l++) {
enum isl_aux_state aux_state =
crocus_resource_level_has_hiz(res, level) ?
crocus_resource_get_aux_state(res, level, box->z + l) :
ISL_AUX_STATE_AUX_INVALID;
if (update_clear_depth || aux_state != ISL_AUX_STATE_CLEAR) {
if (aux_state == ISL_AUX_STATE_CLEAR) {
perf_debug(&ice->dbg, "Performing HiZ clear just to update the "
"depth clear value\n");
}
crocus_hiz_exec(ice, batch, res, level,
box->z + l, 1, ISL_AUX_OP_FAST_CLEAR,
update_clear_depth);
}
}
crocus_resource_set_aux_state(ice, res, level, box->z, box->depth,
ISL_AUX_STATE_CLEAR);
ice->state.dirty |= CROCUS_DIRTY_DEPTH_BUFFER;
}
static void
clear_depth_stencil(struct crocus_context *ice,
struct pipe_resource *p_res,
unsigned level,
const struct pipe_box *box,
bool render_condition_enabled,
bool clear_depth,
bool clear_stencil,
float depth,
uint8_t stencil)
{
struct crocus_resource *res = (void *) p_res;
struct crocus_batch *batch = &ice->batches[CROCUS_BATCH_RENDER];
struct crocus_screen *screen = batch->screen;
enum blorp_batch_flags blorp_flags = 0;
if (render_condition_enabled) {
if (!crocus_check_conditional_render(ice))
return;
if (ice->state.predicate == CROCUS_PREDICATE_STATE_USE_BIT)
blorp_flags |= BLORP_BATCH_PREDICATE_ENABLE;
}
crocus_batch_maybe_flush(batch, 1500);
struct crocus_resource *z_res;
struct crocus_resource *stencil_res;
struct blorp_surf z_surf;
struct blorp_surf stencil_surf;
crocus_get_depth_stencil_resources(&batch->screen->devinfo, p_res, &z_res, &stencil_res);
if (z_res && clear_depth &&
can_fast_clear_depth(ice, z_res, level, box, render_condition_enabled,
depth)) {
fast_clear_depth(ice, z_res, level, box, depth);
crocus_flush_and_dirty_for_history(ice, batch, res, 0,
"cache history: post fast Z clear");
clear_depth = false;
z_res = NULL;
}
/* At this point, we might have fast cleared the depth buffer. So if there's
* no stencil clear pending, return early.
*/
if (!(clear_depth || (clear_stencil && stencil_res))) {
return;
}
if (clear_depth && z_res) {
const enum isl_aux_usage aux_usage =
crocus_resource_render_aux_usage(ice, z_res, level, z_res->surf.format,
false);
crocus_resource_prepare_render(ice, z_res, level, box->z, box->depth,
aux_usage);
crocus_blorp_surf_for_resource(&screen->vtbl, &batch->screen->isl_dev,
&z_surf, &z_res->base, aux_usage,
level, true);
}
struct blorp_batch blorp_batch;
blorp_batch_init(&ice->blorp, &blorp_batch, batch, blorp_flags);
uint8_t stencil_mask = clear_stencil && stencil_res ? 0xff : 0;
if (stencil_mask) {
crocus_resource_prepare_access(ice, stencil_res, level, 1, box->z,
box->depth, stencil_res->aux.usage, false);
crocus_blorp_surf_for_resource(&screen->vtbl, &batch->screen->isl_dev,
&stencil_surf, &stencil_res->base,
stencil_res->aux.usage, level, true);
}
blorp_clear_depth_stencil(&blorp_batch, &z_surf, &stencil_surf,
level, box->z, box->depth,
box->x, box->y,
box->x + box->width,
box->y + box->height,
clear_depth && z_res, depth,
stencil_mask, stencil);
blorp_batch_finish(&blorp_batch);
crocus_flush_and_dirty_for_history(ice, batch, res, 0,
"cache history: post slow ZS clear");
if (clear_depth && z_res) {
crocus_resource_finish_render(ice, z_res, level,
box->z, box->depth, z_surf.aux_usage);
}
if (stencil_mask) {
crocus_resource_finish_write(ice, stencil_res, level, box->z, box->depth,
stencil_res->aux.usage);
}
}
/**
* The pipe->clear() driver hook.
*
* This clears buffers attached to the current draw framebuffer.
*/
static void
crocus_clear(struct pipe_context *ctx,
unsigned buffers,
const struct pipe_scissor_state *scissor_state,
const union pipe_color_union *p_color,
double depth,
unsigned stencil)
{
struct crocus_context *ice = (void *) ctx;
struct pipe_framebuffer_state *cso_fb = &ice->state.framebuffer;
struct crocus_screen *screen = (void *) ctx->screen;
const struct intel_device_info *devinfo = &screen->devinfo;
assert(buffers != 0);
struct pipe_box box = {
.width = cso_fb->width,
.height = cso_fb->height,
};
if (scissor_state) {
box.x = scissor_state->minx;
box.y = scissor_state->miny;
box.width = MIN2(box.width, scissor_state->maxx - scissor_state->minx);
box.height = MIN2(box.height, scissor_state->maxy - scissor_state->miny);
}
if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
if (devinfo->ver < 6) {
crocus_blitter_begin(ice, CROCUS_SAVE_FRAGMENT_STATE, true);
util_blitter_clear(ice->blitter, cso_fb->width, cso_fb->height,
util_framebuffer_get_num_layers(cso_fb),
buffers & PIPE_CLEAR_DEPTHSTENCIL, p_color, depth, stencil, false);
} else {
struct pipe_surface *psurf = cso_fb->zsbuf;
box.depth = psurf->u.tex.last_layer - psurf->u.tex.first_layer + 1;
box.z = psurf->u.tex.first_layer;
clear_depth_stencil(ice, psurf->texture, psurf->u.tex.level, &box, true,
buffers & PIPE_CLEAR_DEPTH,
buffers & PIPE_CLEAR_STENCIL,
depth, stencil);
}
buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
}
if (buffers & PIPE_CLEAR_COLOR) {
/* pipe_color_union and isl_color_value are interchangeable */
union isl_color_value *color = (void *) p_color;
for (unsigned i = 0; i < cso_fb->nr_cbufs; i++) {
if (buffers & (PIPE_CLEAR_COLOR0 << i)) {
struct pipe_surface *psurf = cso_fb->cbufs[i];
struct crocus_surface *isurf = (void *) psurf;
box.depth = psurf->u.tex.last_layer - psurf->u.tex.first_layer + 1,
box.z = psurf->u.tex.first_layer,
clear_color(ice, psurf->texture, psurf->u.tex.level, &box,
true, isurf->view.format, isurf->view.swizzle,
*color);
}
}
}
}
/**
* The pipe->clear_texture() driver hook.
*
* This clears the given texture resource.
*/
static void
crocus_clear_texture(struct pipe_context *ctx,
struct pipe_resource *p_res,
unsigned level,
const struct pipe_box *box,
const void *data)
{
struct crocus_context *ice = (void *) ctx;
struct crocus_screen *screen = (void *) ctx->screen;
const struct intel_device_info *devinfo = &screen->devinfo;
struct crocus_resource *res = (void *) p_res;
if (devinfo->ver < 6) {
util_clear_texture(ctx, p_res,
level, box, data);
return;
}
if (crocus_resource_unfinished_aux_import(res))
crocus_resource_finish_aux_import(ctx->screen, res);
if (util_format_is_depth_or_stencil(p_res->format)) {
const struct util_format_unpack_description *fmt_unpack =
util_format_unpack_description(p_res->format);
float depth = 0.0;
uint8_t stencil = 0;
if (fmt_unpack->unpack_z_float)
fmt_unpack->unpack_z_float(&depth, 0, data, 0, 1, 1);
if (fmt_unpack->unpack_s_8uint)
fmt_unpack->unpack_s_8uint(&stencil, 0, data, 0, 1, 1);
clear_depth_stencil(ice, p_res, level, box, true, true, true,
depth, stencil);
} else {
union isl_color_value color;
struct crocus_resource *res = (void *) p_res;
enum isl_format format = res->surf.format;
if (!isl_format_supports_rendering(devinfo, format)) {
const struct isl_format_layout *fmtl = isl_format_get_layout(format);
// XXX: actually just get_copy_format_for_bpb from BLORP
// XXX: don't cut and paste this
switch (fmtl->bpb) {
case 8: format = ISL_FORMAT_R8_UINT; break;
case 16: format = ISL_FORMAT_R8G8_UINT; break;
case 24: format = ISL_FORMAT_R8G8B8_UINT; break;
case 32: format = ISL_FORMAT_R8G8B8A8_UINT; break;
case 48: format = ISL_FORMAT_R16G16B16_UINT; break;
case 64: format = ISL_FORMAT_R16G16B16A16_UINT; break;
case 96: format = ISL_FORMAT_R32G32B32_UINT; break;
case 128: format = ISL_FORMAT_R32G32B32A32_UINT; break;
default:
unreachable("Unknown format bpb");
}
/* No aux surfaces for non-renderable surfaces */
assert(res->aux.usage == ISL_AUX_USAGE_NONE);
}
isl_color_value_unpack(&color, format, data);
clear_color(ice, p_res, level, box, true, format,
ISL_SWIZZLE_IDENTITY, color);
}
}
/**
* The pipe->clear_render_target() driver hook.
*
* This clears the given render target surface.
*/
static void
crocus_clear_render_target(struct pipe_context *ctx,
struct pipe_surface *psurf,
const union pipe_color_union *p_color,
unsigned dst_x, unsigned dst_y,
unsigned width, unsigned height,
bool render_condition_enabled)
{
struct crocus_context *ice = (void *) ctx;
struct crocus_surface *isurf = (void *) psurf;
struct pipe_box box = {
.x = dst_x,
.y = dst_y,
.z = psurf->u.tex.first_layer,
.width = width,
.height = height,
.depth = psurf->u.tex.last_layer - psurf->u.tex.first_layer + 1
};
/* pipe_color_union and isl_color_value are interchangeable */
union isl_color_value *color = (void *) p_color;
clear_color(ice, psurf->texture, psurf->u.tex.level, &box,
render_condition_enabled,
isurf->view.format, isurf->view.swizzle, *color);
}
/**
* The pipe->clear_depth_stencil() driver hook.
*
* This clears the given depth/stencil surface.
*/
static void
crocus_clear_depth_stencil(struct pipe_context *ctx,
struct pipe_surface *psurf,
unsigned flags,
double depth,
unsigned stencil,
unsigned dst_x, unsigned dst_y,
unsigned width, unsigned height,
bool render_condition_enabled)
{
return;
#if 0
struct crocus_context *ice = (void *) ctx;
struct pipe_box box = {
.x = dst_x,
.y = dst_y,
.z = psurf->u.tex.first_layer,
.width = width,
.height = height,
.depth = psurf->u.tex.last_layer - psurf->u.tex.first_layer + 1
};
uint32_t blit_flags = 0;
assert(util_format_is_depth_or_stencil(psurf->texture->format));
crocus_blitter_begin(ice, CROCUS_SAVE_FRAGMENT_STATE);
util_blitter_clear(ice->blitter, width, height,
1, flags, NULL, depth, stencil, render_condition_enabled);
#if 0
clear_depth_stencil(ice, psurf->texture, psurf->u.tex.level, &box,
render_condition_enabled,
flags & PIPE_CLEAR_DEPTH, flags & PIPE_CLEAR_STENCIL,
depth, stencil);
#endif
#endif
}
void
crocus_init_clear_functions(struct pipe_context *ctx)
{
ctx->clear = crocus_clear;
ctx->clear_texture = crocus_clear_texture;
ctx->clear_render_target = crocus_clear_render_target;
ctx->clear_depth_stencil = crocus_clear_depth_stencil;
}