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drm/ast: cursor: Add support for ARGB4444

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Add support for cursor image data in ARGB4444 format. This is the
hardware's native format and requires no conversion.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-4-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2025-02-17 13:22:06 +01:00
parent 966a0d49d1
commit 19f4da84b6
1 changed files with 22 additions and 10 deletions
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32
drivers/gpu/drm/ast/ast_mode.c
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@ -720,6 +720,7 @@ static void ast_set_cursor_enabled(struct ast_device *ast, bool enabled)
}
static const uint32_t ast_cursor_plane_formats[] = {
DRM_FORMAT_ARGB4444,
DRM_FORMAT_ARGB8888,
};
@ -771,17 +772,28 @@ static void ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
*/
if (drm_atomic_helper_damage_merged(old_plane_state, plane_state, &damage)) {
u8 *argb4444 = ast_cursor_plane->argb4444;
struct iosys_map argb4444_dst[DRM_FORMAT_MAX_PLANES] = {
IOSYS_MAP_INIT_VADDR(argb4444),
};
unsigned int argb4444_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
AST_HWC_PITCH,
};
u8 *argb4444;
drm_fb_argb8888_to_argb4444(argb4444_dst, argb4444_dst_pitch,
shadow_plane_state->data, fb, &damage,
&shadow_plane_state->fmtcnv_state);
switch (fb->format->format) {
case DRM_FORMAT_ARGB4444:
argb4444 = shadow_plane_state->data[0].vaddr;
break;
default:
argb4444 = ast_cursor_plane->argb4444;
{
struct iosys_map argb4444_dst[DRM_FORMAT_MAX_PLANES] = {
IOSYS_MAP_INIT_VADDR(argb4444),
};
unsigned int argb4444_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
AST_HWC_PITCH,
};
drm_fb_argb8888_to_argb4444(argb4444_dst, argb4444_dst_pitch,
shadow_plane_state->data, fb, &damage,
&shadow_plane_state->fmtcnv_state);
}
break;
}
ast_set_cursor_image(ast, argb4444, fb->width, fb->height);
ast_set_cursor_base(ast, dst_off);
}