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backend-drm: move drm_colorop_3x1d_lut_blob functions to colorop.c

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Follow-up of "backend-drm: offload post-blend only if libdrm >=
2.4.130". This moves code related to offloading post-blend color xform
to colorops.c, which is built only if libdrm >= 2.4.130 is available.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
This commit is contained in:
Leandro Ribeiro 2026-04-02 20:48:27 -03:00
parent a62be1d582
commit e060a434a5
3 changed files with 104 additions and 56 deletions
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78
libweston/backend-drm/colorops.c
View file

@ -32,6 +32,84 @@
#include "shared/weston-assert.h"
#include "shared/xalloc.h"
static void
drm_colorop_3x1d_lut_blob_destroy(struct drm_colorop_3x1d_lut_blob *lut)
{
wl_list_remove(&lut->destroy_listener.link);
wl_list_remove(&lut->link);
drmModeDestroyPropertyBlob(lut->device->kms_device->fd, lut->blob_id);
free(lut);
}
static void
drm_colorop_3x1d_lut_blob_destroy_handler(struct wl_listener *l, void *data)
{
struct drm_colorop_3x1d_lut_blob *lut;
lut = wl_container_of(l, lut, destroy_listener);
assert(lut->xform == data);
drm_colorop_3x1d_lut_blob_destroy(lut);
}
/**
* Search for a 3x1D LUT colorop blob in a DRM device.
*
* \param device The DRM device in which we want to look for the blob.
* \param xform The xform from which the LUT comes from.
* \param lut_len How many taps each of the 1D LUT has.
*/
struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_search(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len)
{
struct drm_colorop_3x1d_lut_blob *lut;
wl_list_for_each(lut, &device->drm_colorop_3x1d_lut_blob_list, link)
if (lut->xform == xform && lut->lut_len == lut_len)
return lut;
return NULL;
}
/**
* Create a 3x1D LUT colorop blob.
*
* A Weston colorop is an object associated with a step from a struct
* weston_color_transform and that can be used to program KMS color operations.
* This function creates a blob for such kind of object and cache that in the
* given DRM device, so we can avoid re-creating it.
*
* \param device The DRM device in which this colorop blob is stored.
* \param xform The xform from which the LUT comes from. This object matches its
* lifetime.
* \param lut_len The number of taps for each of the 1D LUT.
* \param blob_id The KMS blob id (associated to the DRM device).
* \return The 3x1D LUT colorop blob.
*/
struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_create(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len, uint32_t blob_id)
{
struct drm_colorop_3x1d_lut_blob *lut;
lut = xzalloc(sizeof(*lut));
lut->device = device;
lut->blob_id = blob_id;
lut->xform = xform;
lut->lut_len = lut_len;
wl_list_insert(&device->drm_colorop_3x1d_lut_blob_list, &lut->link);
lut->destroy_listener.notify = drm_colorop_3x1d_lut_blob_destroy_handler;
wl_signal_add(&lut->xform->destroy_signal, &lut->destroy_listener);
return lut;
}
static void
drm_colorop_destroy(struct drm_colorop *colorop)
{

26
libweston/backend-drm/colorops.h
View file

@ -54,6 +54,16 @@ struct drm_color_pipeline {
#if CAN_OFFLOAD_COLOR_PIPELINE
struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_create(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len, uint32_t blob_id);
struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_search(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len);
void
drm_plane_populate_color_pipelines(struct drm_plane *plane,
drmModeObjectPropertiesPtr plane_props);
@ -63,6 +73,22 @@ drm_plane_release_color_pipelines(struct drm_plane *plane);
#else /* CAN_OFFLOAD_COLOR_PIPELINE */
static inline struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_create(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len, uint32_t blob_id)
{
return NULL;
}
static inline struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_search(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len)
{
return NULL;
}
static inline void
drm_plane_populate_color_pipelines(struct drm_plane *plane,
drmModeObjectPropertiesPtr plane_props)

56
libweston/backend-drm/drm.c
View file

@ -2235,62 +2235,6 @@ drm_output_init_legacy_gamma_size(struct drm_output *output)
return 0;
}
static void
drm_colorop_3x1d_lut_blob_destroy(struct drm_colorop_3x1d_lut_blob *lut)
{
wl_list_remove(&lut->destroy_listener.link);
wl_list_remove(&lut->link);
drmModeDestroyPropertyBlob(lut->device->kms_device->fd, lut->blob_id);
free(lut);
}
static void
drm_colorop_3x1d_lut_blob_destroy_handler(struct wl_listener *l, void *data)
{
struct drm_colorop_3x1d_lut_blob *lut;
lut = wl_container_of(l, lut, destroy_listener);
assert(lut->xform == data);
drm_colorop_3x1d_lut_blob_destroy(lut);
}
static struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_search(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len)
{
struct drm_colorop_3x1d_lut_blob *lut;
wl_list_for_each(lut, &device->drm_colorop_3x1d_lut_blob_list, link)
if (lut->xform == xform && lut->lut_len == lut_len)
return lut;
return NULL;
}
static struct drm_colorop_3x1d_lut_blob *
drm_colorop_3x1d_lut_blob_create(struct drm_device *device,
struct weston_color_transform *xform,
uint32_t lut_len, uint32_t blob_id)
{
struct drm_colorop_3x1d_lut_blob *lut;
lut = xzalloc(sizeof(*lut));
lut->device = device;
lut->blob_id = blob_id;
lut->xform = xform;
lut->lut_len = lut_len;
wl_list_insert(&device->drm_colorop_3x1d_lut_blob_list, &lut->link);
lut->destroy_listener.notify = drm_colorop_3x1d_lut_blob_destroy_handler;
wl_signal_add(&lut->xform->destroy_signal, &lut->destroy_listener);
return lut;
}
static struct weston_vec3f *
lut_3x1d_from_blend_to_output(struct weston_compositor *compositor,
struct weston_color_transform *xform,