static bool
do_single_blorp_clear(struct brw_context *brw, struct gl_framebuffer *fb,
struct gl_renderbuffer *rb, unsigned buf,
bool partial_clear, bool encode_srgb, unsigned layer)
{
struct gl_context *ctx = &brw->ctx;
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
mesa_format format = irb->mt->format;
struct brw_blorp_params params;
brw_blorp_params_init(¶ms);
if (!encode_srgb && _mesa_get_format_color_encoding(format) == GL_SRGB)
format = _mesa_get_srgb_format_linear(format);
brw_blorp_surface_info_init(brw, ¶ms.dst, irb->mt, irb->mt_level,
layer, format, true);
/* Override the surface format according to the context's sRGB rules. */
params.dst.brw_surfaceformat = brw->render_target_format[format];
params.x0 = fb->_Xmin;
params.x1 = fb->_Xmax;
if (rb->Name != 0) {
params.y0 = fb->_Ymin;
params.y1 = fb->_Ymax;
} else {
params.y0 = rb->Height - fb->_Ymax;
params.y1 = rb->Height - fb->_Ymin;
}
memcpy(¶ms.wm_inputs, ctx->Color.ClearColor.f, sizeof(float) * 4);
bool use_simd16_replicated_data = true;
/* From the SNB PRM (Vol4_Part1):
*
* "Replicated data (Message Type = 111) is only supported when
* accessing tiled memory. Using this Message Type to access linear
* (untiled) memory is UNDEFINED."
*/
if (irb->mt->tiling == I915_TILING_NONE)
use_simd16_replicated_data = false;
/* Constant color writes ignore everyting in blend and color calculator
* state. This is not documented.
*/
if (set_write_disables(irb, ctx->Color.ColorMask[buf],
params.color_write_disable))
use_simd16_replicated_data = false;
if (irb->mt->fast_clear_state != INTEL_FAST_CLEAR_STATE_NO_MCS &&
!partial_clear && use_simd16_replicated_data &&
brw_is_color_fast_clear_compatible(brw, irb->mt,
&ctx->Color.ClearColor)) {
memset(¶ms.wm_inputs, 0xff, 4*sizeof(float));
params.fast_clear_op = GEN7_PS_RENDER_TARGET_FAST_CLEAR_ENABLE;
brw_get_fast_clear_rect(brw, fb, irb->mt, ¶ms.x0, ¶ms.y0,
¶ms.x1, ¶ms.y1);
} else {
brw_meta_get_buffer_rect(fb, ¶ms.x0, ¶ms.y0,
¶ms.x1, ¶ms.y1);
}
brw_blorp_params_get_clear_kernel(brw, ¶ms, use_simd16_replicated_data);
const bool is_fast_clear =
params.fast_clear_op == GEN7_PS_RENDER_TARGET_FAST_CLEAR_ENABLE;
if (is_fast_clear) {
/* Record the clear color in the miptree so that it will be
* programmed in SURFACE_STATE by later rendering and resolve
* operations.
*/
const bool color_updated = brw_meta_set_fast_clear_color(
brw, irb->mt, &ctx->Color.ClearColor);
/* If the buffer is already in INTEL_FAST_CLEAR_STATE_CLEAR, the clear
* is redundant and can be skipped.
*/
if (!color_updated &&
irb->mt->fast_clear_state == INTEL_FAST_CLEAR_STATE_CLEAR)
return true;
/* If the MCS buffer hasn't been allocated yet, we need to allocate
* it now.
*/
if (!irb->mt->mcs_mt) {
if (!intel_miptree_alloc_non_msrt_mcs(brw, irb->mt)) {
/* MCS allocation failed--probably this will only happen in
* out-of-memory conditions. But in any case, try to recover
* by falling back to a non-blorp clear technique.
*/
return false;
}
}
}
const char *clear_type;
if (is_fast_clear)
clear_type = "fast";
else if (use_simd16_replicated_data)
clear_type = "replicated";
else
clear_type = "slow";
DBG("%s (%s) to mt %p level %d layer %d\n", __FUNCTION__, clear_type,
irb->mt, irb->mt_level, irb->mt_layer);
brw_blorp_exec(brw, ¶ms);
if (is_fast_clear) {
/* Now that the fast clear has occurred, put the buffer in
* INTEL_FAST_CLEAR_STATE_CLEAR so that we won't waste time doing
* redundant clears.
*/
irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_CLEAR;
} else if (intel_miptree_is_lossless_compressed(brw, irb->mt)) {
/* Compressed buffers can be cleared also using normal rep-clear. In
* such case they bahave such as if they were drawn using normal 3D
* render pipeline, and we simply mark the mcs as dirty.
*/
assert(partial_clear);
irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_UNRESOLVED;
}
return true;
}
static bool
do_single_blorp_clear(struct brw_context *brw, struct gl_framebuffer *fb,
struct gl_renderbuffer *rb, unsigned buf,
bool partial_clear, bool encode_srgb)
{
struct gl_context *ctx = &brw->ctx;
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
mesa_format format = irb->mt->format;
uint32_t x0, x1, y0, y1;
if (!encode_srgb && _mesa_get_format_color_encoding(format) == GL_SRGB)
format = _mesa_get_srgb_format_linear(format);
x0 = fb->_Xmin;
x1 = fb->_Xmax;
if (rb->Name != 0) {
y0 = fb->_Ymin;
y1 = fb->_Ymax;
} else {
y0 = rb->Height - fb->_Ymax;
y1 = rb->Height - fb->_Ymin;
}
/* If the clear region is empty, just return. */
if (x0 == x1 || y0 == y1)
return true;
bool can_fast_clear = !partial_clear;
bool color_write_disable[4] = { false, false, false, false };
if (set_write_disables(irb, ctx->Color.ColorMask[buf], color_write_disable))
can_fast_clear = false;
if (irb->mt->no_ccs ||
!brw_is_color_fast_clear_compatible(brw, irb->mt, &ctx->Color.ClearColor))
can_fast_clear = false;
const unsigned logical_layer = irb_logical_mt_layer(irb);
const enum intel_fast_clear_state fast_clear_state =
intel_miptree_get_fast_clear_state(irb->mt, irb->mt_level,
logical_layer);
/* Surface state can only record one fast clear color value. Therefore
* unless different levels/layers agree on the color it can be used to
* represent only single level/layer. Here it will be reserved for the
* first slice (level 0, layer 0).
*/
if (irb->layer_count > 1 || irb->mt_level || irb->mt_layer)
can_fast_clear = false;
if (can_fast_clear) {
union gl_color_union override_color =
brw_meta_convert_fast_clear_color(brw, irb->mt,
&ctx->Color.ClearColor);
/* Record the clear color in the miptree so that it will be
* programmed in SURFACE_STATE by later rendering and resolve
* operations.
*/
const bool color_updated = brw_meta_set_fast_clear_color(
brw, &irb->mt->gen9_fast_clear_color,
&override_color);
/* If the buffer is already in INTEL_FAST_CLEAR_STATE_CLEAR, the clear
* is redundant and can be skipped.
*/
if (!color_updated && fast_clear_state == INTEL_FAST_CLEAR_STATE_CLEAR)
return true;
/* If the MCS buffer hasn't been allocated yet, we need to allocate
* it now.
*/
if (!irb->mt->mcs_buf) {
assert(!intel_miptree_is_lossless_compressed(brw, irb->mt));
if (!intel_miptree_alloc_non_msrt_mcs(brw, irb->mt, false)) {
/* MCS allocation failed--probably this will only happen in
* out-of-memory conditions. But in any case, try to recover
* by falling back to a non-blorp clear technique.
*/
return false;
}
}
}
const unsigned num_layers = fb->MaxNumLayers ? irb->layer_count : 1;
/* We can't setup the blorp_surf until we've allocated the MCS above */
struct isl_surf isl_tmp[2];
struct blorp_surf surf;
unsigned level = irb->mt_level;
blorp_surf_for_miptree(brw, &surf, irb->mt, true,
(1 << ISL_AUX_USAGE_MCS) |
(1 << ISL_AUX_USAGE_CCS_E) |
(1 << ISL_AUX_USAGE_CCS_D),
&level, logical_layer, num_layers, isl_tmp);
if (can_fast_clear) {
DBG("%s (fast) to mt %p level %d layers %d+%d\n", __FUNCTION__,
irb->mt, irb->mt_level, irb->mt_layer, num_layers);
struct blorp_batch batch;
blorp_batch_init(&brw->blorp, &batch, brw, 0);
blorp_fast_clear(&batch, &surf,
(enum isl_format)brw->render_target_format[format],
level, logical_layer, num_layers,
x0, y0, x1, y1);
blorp_batch_finish(&batch);
/* Now that the fast clear has occurred, put the buffer in
* INTEL_FAST_CLEAR_STATE_CLEAR so that we won't waste time doing
* redundant clears.
*/
intel_miptree_set_fast_clear_state(brw, irb->mt, irb->mt_level,
logical_layer, num_layers,
INTEL_FAST_CLEAR_STATE_CLEAR);
} else {
DBG("%s (slow) to mt %p level %d layer %d+%d\n", __FUNCTION__,
irb->mt, irb->mt_level, irb->mt_layer, num_layers);
union isl_color_value clear_color;
memcpy(clear_color.f32, ctx->Color.ClearColor.f, sizeof(float) * 4);
struct blorp_batch batch;
blorp_batch_init(&brw->blorp, &batch, brw, 0);
blorp_clear(&batch, &surf,
(enum isl_format)brw->render_target_format[format],
ISL_SWIZZLE_IDENTITY,
level, irb_logical_mt_layer(irb), num_layers,
x0, y0, x1, y1,
clear_color, color_write_disable);
blorp_batch_finish(&batch);
}
return true;
}
