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vl/compositor: convert RGB buffer to YUV with color conversion

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Acked-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Leo Liu
2017-09-19 12:27:19 -04:00
parent 737d13637d
commit b47bdf55dc
2 changed files with 81 additions and 0 deletions
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69
src/gallium/auxiliary/vl/vl_compositor.c
View File

@@ -34,6 +34,7 @@
#include "util/u_draw.h"
#include "util/u_surface.h"
#include "util/u_upload_mgr.h"
#include "util/u_sampler.h"
#include "tgsi/tgsi_ureg.h"
@@ -992,6 +993,37 @@ set_yuv_layer(struct vl_compositor_state *s, struct vl_compositor *c,
}
}
static void
set_rgb_to_yuv_layer(struct vl_compositor_state *s, struct vl_compositor *c,
unsigned layer, struct pipe_sampler_view *v,
struct u_rect *src_rect, struct u_rect *dst_rect, bool y)
{
vl_csc_matrix csc_matrix;
assert(s && c && v);
assert(layer < VL_COMPOSITOR_MAX_LAYERS);
s->used_layers |= 1 << layer;
s->layers[layer].fs = y? c->fs_rgb_yuv.y : c->fs_rgb_yuv.uv;
vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_BT_709_REV, NULL, false, &csc_matrix);
vl_compositor_set_csc_matrix(s, (const vl_csc_matrix *)&csc_matrix, 1.0f, 0.0f);
s->layers[layer].samplers[0] = c->sampler_linear;
s->layers[layer].samplers[1] = NULL;
s->layers[layer].samplers[2] = NULL;
pipe_sampler_view_reference(&s->layers[layer].sampler_views[0], v);
pipe_sampler_view_reference(&s->layers[layer].sampler_views[1], NULL);
pipe_sampler_view_reference(&s->layers[layer].sampler_views[2], NULL);
calc_src_and_dst(&s->layers[layer], v->texture->width0, v->texture->height0,
src_rect ? *src_rect : default_rect(&s->layers[layer]),
dst_rect ? *dst_rect : default_rect(&s->layers[layer]));
}
void
vl_compositor_reset_dirty_area(struct u_rect *dirty)
{
@@ -1279,6 +1311,43 @@ vl_compositor_yuv_deint_full(struct vl_compositor_state *s,
s->pipe->flush(s->pipe, NULL, 0);
}
void
vl_compositor_convert_rgb_to_yuv(struct vl_compositor_state *s,
struct vl_compositor *c,
unsigned layer,
struct pipe_resource *src_res,
struct pipe_video_buffer *dst,
struct u_rect *src_rect,
struct u_rect *dst_rect)
{
struct pipe_sampler_view *sv, sv_templ;
struct pipe_surface **dst_surfaces;
dst_surfaces = dst->get_surfaces(dst);
memset(&sv_templ, 0, sizeof(sv_templ));
u_sampler_view_default_template(&sv_templ, src_res, src_res->format);
sv = s->pipe->create_sampler_view(s->pipe, src_res, &sv_templ);
vl_compositor_clear_layers(s);
set_rgb_to_yuv_layer(s, c, 0, sv, src_rect, NULL, true);
vl_compositor_set_layer_dst_area(s, 0, dst_rect);
vl_compositor_render(s, c, dst_surfaces[0], NULL, false);
if (dst_rect) {
dst_rect->x1 /= 2;
dst_rect->y1 /= 2;
}
set_rgb_to_yuv_layer(s, c, 0, sv, src_rect, NULL, false);
vl_compositor_set_layer_dst_area(s, 0, dst_rect);
vl_compositor_render(s, c, dst_surfaces[1], NULL, false);
pipe_sampler_view_reference(&sv, NULL);
s->pipe->flush(s->pipe, NULL, 0);
}
void
vl_compositor_render(struct vl_compositor_state *s,
struct vl_compositor *c,

12
src/gallium/auxiliary/vl/vl_compositor.h
View File

@@ -263,6 +263,18 @@ vl_compositor_yuv_deint_full(struct vl_compositor_state *state,
struct u_rect *dst_rect,
enum vl_compositor_deinterlace deinterlace);
/**
+ * convert rgb to yuv
+ */
void
vl_compositor_convert_rgb_to_yuv(struct vl_compositor_state *state,
struct vl_compositor *compositor,
unsigned layer,
struct pipe_resource *src_res,
struct pipe_video_buffer *dst,
struct u_rect *src_rect,
struct u_rect *dst_rect);
/*@}*/
/**