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igt_fb: Transfer existing content to Cairo surface for Y/Yf frame buffers

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Rendering into Y and Yf tiled frame buffers with Cairo was losing the
previous content ie. was starting from black. This is different than the
behaviour with linear and X tiled so make it the same by blitting the
initial content when creating the rendering context.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
This commit is contained in:
Tvrtko Ursulin 2015-04-29 13:24:34 +01:00 committed by Damien Lespiau
parent fc69bb0de5
commit 30a1360f6a
1 changed files with 40 additions and 16 deletions
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56
lib/igt_fb.c
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@ -650,11 +650,27 @@ struct fb_blit_upload {
} linear;
};
static unsigned int fb_mod_to_obj_tiling(uint64_t fb_mod)
{
switch (fb_mod) {
case LOCAL_DRM_FORMAT_MOD_NONE:
return I915_TILING_NONE;
case LOCAL_I915_FORMAT_MOD_X_TILED:
return I915_TILING_X;
case LOCAL_I915_FORMAT_MOD_Y_TILED:
return I915_TILING_Y;
case LOCAL_I915_FORMAT_MOD_Yf_TILED:
return I915_TILING_Yf;
default:
igt_assert(0);
}
}
static void destroy_cairo_surface__blit(void *arg)
{
struct fb_blit_upload *blit = arg;
struct igt_fb *fb = blit->fb;
unsigned int obj_tiling = I915_TILING_NONE;
unsigned int obj_tiling = fb_mod_to_obj_tiling(fb->tiling);
munmap(blit->linear.map, blit->linear.size);
fb->cairo_surface = NULL;
@ -662,18 +678,6 @@ static void destroy_cairo_surface__blit(void *arg)
gem_set_domain(blit->fd, blit->linear.handle,
I915_GEM_DOMAIN_GTT, 0);
switch (fb->tiling) {
case LOCAL_I915_FORMAT_MOD_X_TILED:
obj_tiling = I915_TILING_X;
break;
case LOCAL_I915_FORMAT_MOD_Y_TILED:
obj_tiling = I915_TILING_Y;
break;
case LOCAL_I915_FORMAT_MOD_Yf_TILED:
obj_tiling = I915_TILING_Yf;
break;
}
igt_blitter_fast_copy__raw(blit->fd,
blit->linear.handle,
blit->linear.stride,
@ -695,6 +699,7 @@ static void create_cairo_surface__blit(int fd, struct igt_fb *fb)
{
struct fb_blit_upload *blit;
cairo_format_t cairo_format;
unsigned int obj_tiling = fb_mod_to_obj_tiling(fb->tiling);
int bpp, ret;
blit = malloc(sizeof(*blit));
@ -716,6 +721,28 @@ static void create_cairo_surface__blit(int fd, struct igt_fb *fb)
blit->fd = fd;
blit->fb = fb;
/* Copy fb content to linear BO */
gem_set_domain(fd, blit->linear.handle,
I915_GEM_DOMAIN_GTT, 0);
igt_blitter_fast_copy__raw(fd,
fb->gem_handle,
fb->stride,
obj_tiling,
0, 0, /* src_x, src_y */
fb->width, fb->height,
blit->linear.handle,
blit->linear.stride,
I915_TILING_NONE,
0, 0 /* dst_x, dst_y */);
gem_sync(fd, blit->linear.handle);
gem_set_domain(fd, blit->linear.handle,
I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
/* Setup cairo context */
blit->linear.map = gem_mmap__cpu(fd,
blit->linear.handle,
0,
@ -723,9 +750,6 @@ static void create_cairo_surface__blit(int fd, struct igt_fb *fb)
PROT_READ | PROT_WRITE);
igt_assert(blit->linear.map);
gem_set_domain(fd, blit->linear.handle,
I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
cairo_format = drm_format_to_cairo(fb->drm_format);
fb->cairo_surface =
cairo_image_surface_create_for_data(blit->linear.map,