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i965/meta: Expose fast clear rectangle calculation 

Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Topi Pohjolainen 2016-04-03 22:10:14 +03:00
parent 3ef957e783
commit 2757d723da
2 changed files with 33 additions and 19 deletions
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44
src/mesa/drivers/dri/i965/brw_meta_fast_clear.c
View File

@ -58,6 +58,7 @@
#include "intel_batchbuffer.h"
#include "brw_blorp.h"
#include "brw_meta_util.h"
struct brw_fast_clear_state {
struct gl_buffer_object *buf_obj;
@ -171,7 +172,7 @@ brw_meta_fast_clear_free(struct brw_context *brw)
}
struct rect {
int x0, y0, x1, y1;
unsigned x0, y0, x1, y1;
};
static void
@ -215,16 +216,19 @@ brw_draw_rectlist(struct brw_context *brw, struct rect *rect, int num_instances)
NULL, 0, NULL);
}
static void
get_fast_clear_rect(struct brw_context *brw, struct gl_framebuffer *fb,
struct intel_renderbuffer *irb, struct rect *rect)
void
brw_get_fast_clear_rect(const struct brw_context *brw,
const struct gl_framebuffer *fb,
const struct intel_mipmap_tree* mt,
unsigned *x0, unsigned *y0,
unsigned *x1, unsigned *y1)
{
unsigned int x_align, y_align;
unsigned int x_scaledown, y_scaledown;
/* Only single sampled surfaces need to (and actually can) be resolved. */
if (irb->mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE ||
intel_miptree_is_lossless_compressed(brw, irb->mt)) {
if (mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE ||
intel_miptree_is_lossless_compressed(brw, mt)) {
/* From the Ivy Bridge PRM, Vol2 Part1 11.7 "MCS Buffer for Render
* Target(s)", beneath the "Fast Color Clear" bullet (p327):
*
@ -240,7 +244,7 @@ get_fast_clear_rect(struct brw_context *brw, struct gl_framebuffer *fb,
* alignment size returned by intel_get_non_msrt_mcs_alignment(), but
* with X alignment multiplied by 16 and Y alignment multiplied by 32.
*/
intel_get_non_msrt_mcs_alignment(irb->mt, &x_align, &y_align);
intel_get_non_msrt_mcs_alignment(mt, &x_align, &y_align);
x_align *= 16;
/* SKL+ line alignment requirement for Y-tiled are half those of the prior
@ -304,7 +308,7 @@ get_fast_clear_rect(struct brw_context *brw, struct gl_framebuffer *fb,
* vertically and either 4 or 16 horizontally, and the scaledown
* factor is 2 vertically and either 2 or 8 horizontally.
*/
switch (irb->mt->num_samples) {
switch (mt->num_samples) {
case 2:
case 4:
x_scaledown = 8;
@ -323,20 +327,20 @@ get_fast_clear_rect(struct brw_context *brw, struct gl_framebuffer *fb,
y_align = y_scaledown * 2;
}
rect->x0 = fb->_Xmin;
rect->x1 = fb->_Xmax;
*x0 = fb->_Xmin;
*x1 = fb->_Xmax;
if (fb->Name != 0) {
rect->y0 = fb->_Ymin;
rect->y1 = fb->_Ymax;
*y0 = fb->_Ymin;
*y1 = fb->_Ymax;
} else {
rect->y0 = fb->Height - fb->_Ymax;
rect->y1 = fb->Height - fb->_Ymin;
*y0 = fb->Height - fb->_Ymax;
*y1 = fb->Height - fb->_Ymin;
}
rect->x0 = ROUND_DOWN_TO(rect->x0, x_align) / x_scaledown;
rect->y0 = ROUND_DOWN_TO(rect->y0, y_align) / y_scaledown;
rect->x1 = ALIGN(rect->x1, x_align) / x_scaledown;
rect->y1 = ALIGN(rect->y1, y_align) / y_scaledown;
*x0 = ROUND_DOWN_TO(*x0, x_align) / x_scaledown;
*y0 = ROUND_DOWN_TO(*y0, y_align) / y_scaledown;
*x1 = ALIGN(*x1, x_align) / x_scaledown;
*y1 = ALIGN(*y1, y_align) / y_scaledown;
}
static void
@ -678,7 +682,9 @@ brw_meta_fast_clear(struct brw_context *brw, struct gl_framebuffer *fb,
irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_RESOLVED;
irb->need_downsample = true;
fast_clear_buffers |= 1 << index;
get_fast_clear_rect(brw, fb, irb, &fast_clear_rect);
brw_get_fast_clear_rect(brw, fb, irb->mt,
&fast_clear_rect.x0, &fast_clear_rect.y0,
&fast_clear_rect.x1, &fast_clear_rect.y1);
break;
case REP_CLEAR:

8
src/mesa/drivers/dri/i965/brw_meta_util.h
View File

@ -26,6 +26,7 @@
#include <stdbool.h>
#include "main/mtypes.h"
#include "intel_mipmap_tree.h"
#ifdef __cplusplus
extern "C" {
@ -41,6 +42,13 @@ brw_meta_mirror_clip_and_scissor(const struct gl_context *ctx,
GLfloat *dstX1, GLfloat *dstY1,
bool *mirror_x, bool *mirror_y);
void
brw_get_fast_clear_rect(const struct brw_context *brw,
const struct gl_framebuffer *fb,
const struct intel_mipmap_tree* mt,
unsigned *x0, unsigned *y0,
unsigned *x1, unsigned *y1);
#ifdef __cplusplus
}
#endif