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u_blitter: use user buffers instead of real buffers

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User buffers may be the fastest way to upload data.
This commit is contained in:
Marek Olšák
2011-01-29 05:11:01 +01:00
parent c5fb0518f4
commit 2a456dc123
1 changed files with 8 additions and 21 deletions
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src/gallium/auxiliary/util/u_blitter.c
+8 -21
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@@ -222,9 +222,10 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
ctx->vertices[i][0][3] = 1; /*v.w*/
/* create the vertex buffer */
ctx->vbuf = pipe_buffer_create(ctx->base.pipe->screen,
PIPE_BIND_VERTEX_BUFFER,
sizeof(ctx->vertices));
ctx->vbuf = pipe_user_buffer_create(ctx->base.pipe->screen,
ctx->vertices,
sizeof(ctx->vertices),
PIPE_BIND_VERTEX_BUFFER);
return &ctx->base;
}
@@ -516,22 +517,6 @@ static void blitter_set_dst_dimensions(struct blitter_context_priv *ctx,
ctx->dst_height = height;
}
static void blitter_draw_quad(struct blitter_context_priv *ctx)
{
struct pipe_context *pipe = ctx->base.pipe;
struct pipe_box box;
/* write vertices and draw them */
u_box_1d(0, sizeof(ctx->vertices), &box);
pipe->transfer_inline_write(pipe, ctx->vbuf, 0,
PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD,
&box, ctx->vertices, sizeof(ctx->vertices), 0);
util_draw_vertex_buffer(pipe, ctx->vbuf, 0, PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
}
static INLINE
void **blitter_get_sampler_state(struct blitter_context_priv *ctx,
int miplevel, boolean normalized)
@@ -656,7 +641,8 @@ static void blitter_draw_rectangle(struct blitter_context *blitter,
}
blitter_set_rectangle(ctx, x1, y1, x2, y2, depth);
blitter_draw_quad(ctx);
util_draw_vertex_buffer(ctx->base.pipe, ctx->vbuf, 0,
PIPE_PRIM_TRIANGLE_FAN, 4, 2);
}
static void util_blitter_clear_custom(struct blitter_context *blitter,
@@ -881,7 +867,8 @@ void util_blitter_copy_region(struct blitter_context *blitter,
/* Draw. */
blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0);
blitter_draw_quad(ctx);
util_draw_vertex_buffer(ctx->base.pipe, ctx->vbuf, 0,
PIPE_PRIM_TRIANGLE_FAN, 4, 2);
break;
default: