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st/mesa: write vertices directly into the buffer in glDrawPixels

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This commit is contained in:
Marek Olšák 2012-04-13 20:37:41 +02:00
parent b69dad1683
commit 6c1fbe912f
1 changed files with 15 additions and 17 deletions
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32
src/mesa/state_tracker/st_cb_drawpixels.c
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@ -555,7 +555,15 @@ draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */
GLfloat (*verts)[3][4]; /* four verts, three attribs, XYZW */
struct pipe_resource *buf = NULL;
unsigned offset;
u_upload_alloc(st->uploader, 0, 4 * sizeof(verts[0]), &offset, &buf,
(void**)&verts);
if (!buf) {
return;
}
/* setup vertex data */
{
@ -619,22 +627,12 @@ draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
}
}
{
struct pipe_resource *buf = NULL;
unsigned offset;
u_upload_data(st->uploader, 0, sizeof(verts), verts, &offset, &buf);
if (!buf) {
return;
}
u_upload_unmap(st->uploader);
util_draw_vertex_buffer(pipe, st->cso_context, buf, offset,
PIPE_PRIM_QUADS,
4, /* verts */
3); /* attribs/vert */
pipe_resource_reference(&buf, NULL);
}
u_upload_unmap(st->uploader);
util_draw_vertex_buffer(pipe, st->cso_context, buf, offset,
PIPE_PRIM_QUADS,
4, /* verts */
3); /* attribs/vert */
pipe_resource_reference(&buf, NULL);
}