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v3d: Expose the dma-buf modifiers query.

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This allows DRI3 to pick between UIF and raster according to whether we're
pageflipping or not and whether the pageflipping display can do UIF,
avoiding copies for the windowed/composited case that previously was
forced to linear.

Improves windowed glmark2 -b build:use-vbo=false performance by 30.7783%
+/- 13.1719% (n=3)
This commit is contained in:
Eric Anholt 2019-03-18 13:49:08 -07:00
parent bf6973199d
commit 17115da6ad
1 changed files with 29 additions and 0 deletions
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29
src/gallium/drivers/v3d/v3d_screen.c
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@ -40,6 +40,7 @@
#include "v3d_context.h"
#include "v3d_resource.h"
#include "compiler/v3d_compiler.h"
#include "drm-uapi/drm_fourcc.h"
static const char *
v3d_screen_get_name(struct pipe_screen *pscreen)
@ -512,6 +513,33 @@ v3d_screen_get_compiler_options(struct pipe_screen *pscreen,
return &v3d_nir_options;
}
static void
v3d_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
enum pipe_format format, int max,
uint64_t *modifiers,
unsigned int *external_only,
int *count)
{
int i;
uint64_t available_modifiers[] = {
DRM_FORMAT_MOD_BROADCOM_UIF,
DRM_FORMAT_MOD_LINEAR,
};
int num_modifiers = ARRAY_SIZE(available_modifiers);
if (!modifiers) {
*count = num_modifiers;
return;
}
*count = MIN2(max, num_modifiers);
for (i = 0; i < *count; i++) {
modifiers[i] = available_modifiers[i];
if (external_only)
external_only[i] = false;
}
}
struct pipe_screen *
v3d_screen_create(int fd, struct renderonly *ro)
{
@ -561,6 +589,7 @@ v3d_screen_create(int fd, struct renderonly *ro)
pscreen->get_vendor = v3d_screen_get_vendor;
pscreen->get_device_vendor = v3d_screen_get_vendor;
pscreen->get_compiler_options = v3d_screen_get_compiler_options;
pscreen->query_dmabuf_modifiers = v3d_screen_query_dmabuf_modifiers;
return pscreen;