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drm/imx: ipuv3-plane: let drm_plane_state_to_ubo/vbo handle chroma subsampling other than 4:2:0

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To support 4:2:2 or 4:4:4 chroma subsampling, divide the x/y offsets in
drm_plane_state_to_ubo/vbo only if necessary for the given pixel format.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
This commit is contained in:
Philipp Zabel 2016-10-18 12:26:19 +02:00
parent 3fd8b292ae
commit f2fa3536b2
1 changed files with 18 additions and 9 deletions
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27
drivers/gpu/drm/imx/ipuv3-plane.c
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@ -64,13 +64,14 @@ drm_plane_state_to_eba(struct drm_plane_state *state)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
int x = state->src_x >> 16;
int y = state->src_y >> 16;
cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[0] +
fb->pitches[0] * (state->src_y >> 16) +
(fb->bits_per_pixel >> 3) * (state->src_x >> 16);
return cma_obj->paddr + fb->offsets[0] + fb->pitches[0] * y +
drm_format_plane_cpp(fb->pixel_format, 0) * x;
}
static inline unsigned long
@ -79,13 +80,17 @@ drm_plane_state_to_ubo(struct drm_plane_state *state)
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
unsigned long eba = drm_plane_state_to_eba(state);
int x = state->src_x >> 16;
int y = state->src_y >> 16;
cma_obj = drm_fb_cma_get_gem_obj(fb, 1);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[1] +
fb->pitches[1] * (state->src_y >> 16) / 2 +
(state->src_x >> 16) / 2 - eba;
x /= drm_format_horz_chroma_subsampling(fb->pixel_format);
y /= drm_format_vert_chroma_subsampling(fb->pixel_format);
return cma_obj->paddr + fb->offsets[1] + fb->pitches[1] * y +
drm_format_plane_cpp(fb->pixel_format, 1) * x - eba;
}
static inline unsigned long
@ -94,13 +99,17 @@ drm_plane_state_to_vbo(struct drm_plane_state *state)
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
unsigned long eba = drm_plane_state_to_eba(state);
int x = state->src_x >> 16;
int y = state->src_y >> 16;
cma_obj = drm_fb_cma_get_gem_obj(fb, 2);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[2] +
fb->pitches[2] * (state->src_y >> 16) / 2 +
(state->src_x >> 16) / 2 - eba;
x /= drm_format_horz_chroma_subsampling(fb->pixel_format);
y /= drm_format_vert_chroma_subsampling(fb->pixel_format);
return cma_obj->paddr + fb->offsets[2] + fb->pitches[2] * y +
drm_format_plane_cpp(fb->pixel_format, 2) * x - eba;
}
void ipu_plane_put_resources(struct ipu_plane *ipu_plane)