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[g3dvl] using reciprocals for size calc is sometimes not precise enough

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This commit is contained in:
Christian König 2011-05-07 14:39:35 +02:00
parent 213b9004a6
commit a67a0bb60c
1 changed files with 9 additions and 9 deletions
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18
src/gallium/auxiliary/vl/vl_compositor.c
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@ -378,16 +378,16 @@ default_rect(struct vl_compositor_layer *layer)
}
static inline struct vertex2f
calc_topleft(struct vertex2f inv_size, struct pipe_video_rect rect)
calc_topleft(struct vertex2f size, struct pipe_video_rect rect)
{
struct vertex2f res = { rect.x * inv_size.x, rect.y * inv_size.y };
struct vertex2f res = { rect.x / size.x, rect.y / size.y };
return res;
}
static inline struct vertex2f
calc_bottomright(struct vertex2f inv_size, struct pipe_video_rect rect)
calc_bottomright(struct vertex2f size, struct pipe_video_rect rect)
{
struct vertex2f res = { (rect.x + rect.w) * inv_size.x, (rect.y + rect.h) * inv_size.y };
struct vertex2f res = { (rect.x + rect.w) / size.x, (rect.y + rect.h) / size.y };
return res;
}
@ -395,12 +395,12 @@ static inline void
calc_src_and_dst(struct vl_compositor_layer *layer, unsigned width, unsigned height,
struct pipe_video_rect src, struct pipe_video_rect dst)
{
struct vertex2f inv_size = { 1.0f / width, 1.0f / height };
struct vertex2f size = { width, height };
layer->src.tl = calc_topleft(inv_size, src);
layer->src.br = calc_bottomright(inv_size, src);
layer->dst.tl = calc_topleft(inv_size, dst);
layer->dst.br = calc_bottomright(inv_size, dst);
layer->src.tl = calc_topleft(size, src);
layer->src.br = calc_bottomright(size, src);
layer->dst.tl = calc_topleft(size, dst);
layer->dst.br = calc_bottomright(size, dst);
}
static void