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backend-drm: move code that creates gbm surface to a separate function

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The function drm_output_init_egl() is too big, so move the code to
create the gbm surface to a separate function: create_gbm_surface().

Also made some minor style changes to the code that has been moved, in
order to improve readability.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
This commit is contained in:
Leandro Ribeiro 2021-04-20 16:28:26 -03:00 committed by Daniel Stone
parent 7466309c12
commit 3459bad63d
1 changed files with 38 additions and 37 deletions
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75
libweston/backend-drm/drm-gbm.c
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@ -177,14 +177,48 @@ err:
return -1;
}
/* Init output state that depends on gl or gbm */
int
drm_output_init_egl(struct drm_output *output, struct drm_backend *b)
static void
create_gbm_surface(struct gbm_device *gbm, struct drm_output *output)
{
struct weston_mode *mode = output->base.current_mode;
struct drm_plane *plane = output->scanout_plane;
struct weston_drm_format *fmt;
const uint64_t *modifiers;
unsigned int num_modifiers;
fmt = weston_drm_format_array_find_format(&plane->formats,
output->gbm_format);
if (!fmt) {
weston_log("format 0x%x not supported by output %s\n",
output->gbm_format, output->base.name);
return;
}
#ifdef HAVE_GBM_MODIFIERS
modifiers = weston_drm_format_get_modifiers(fmt, &num_modifiers);
if (num_modifiers > 0) {
output->gbm_surface =
gbm_surface_create_with_modifiers(gbm,
mode->width, mode->height,
output->gbm_format,
modifiers, num_modifiers);
}
#endif
/* If allocating with modifiers fails, try again without. This can
* happen when the KMS display device supports modifiers but the
* GBM driver does not, e.g. the old i915 Mesa driver. */
if (!output->gbm_surface)
output->gbm_surface = gbm_surface_create(gbm,
mode->width, mode->height,
output->gbm_format,
output->gbm_bo_flags);
}
/* Init output state that depends on gl or gbm */
int
drm_output_init_egl(struct drm_output *output, struct drm_backend *b)
{
uint32_t format[2] = {
output->gbm_format,
fallback_format_for(output->gbm_format),
@ -193,42 +227,9 @@ drm_output_init_egl(struct drm_output *output, struct drm_backend *b)
.drm_formats = format,
.drm_formats_count = 1,
};
struct weston_mode *mode = output->base.current_mode;
struct drm_plane *plane = output->scanout_plane;
assert(output->gbm_surface == NULL);
fmt = weston_drm_format_array_find_format(&plane->formats, output->gbm_format);
if (!fmt) {
weston_log("format 0x%x not supported by output %s\n",
output->gbm_format, output->base.name);
return -1;
}
#ifdef HAVE_GBM_MODIFIERS
modifiers = weston_drm_format_get_modifiers(fmt, &num_modifiers);
if (num_modifiers > 0) {
output->gbm_surface =
gbm_surface_create_with_modifiers(b->gbm,
mode->width,
mode->height,
output->gbm_format,
modifiers,
num_modifiers);
}
/* If allocating with modifiers fails, try again without. This can
* happen when the KMS display device supports modifiers but the
* GBM driver does not, e.g. the old i915 Mesa driver. */
if (!output->gbm_surface)
#endif
{
output->gbm_surface =
gbm_surface_create(b->gbm, mode->width, mode->height,
output->gbm_format,
output->gbm_bo_flags);
}
create_gbm_surface(b->gbm, output);
if (!output->gbm_surface) {
weston_log("failed to create gbm surface\n");
return -1;