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glamor: Track the next vertex offset as we go for AA traps.

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Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus at selfnet.de>
This commit is contained in:
Eric Anholt 2014-03-06 17:05:31 -08:00
parent ca307fd18d
commit ffc8423077
1 changed files with 9 additions and 5 deletions
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14
glamor/glamor_trapezoid.c
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@ -607,7 +607,7 @@ _glamor_clip_trapezoid_vertex(xTrapezoid *trap, BoxPtr pbox,
return TRUE;
}
static void
static void *
glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
@ -701,6 +701,8 @@ glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
glEnableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
glamor_put_context(glamor_priv);
return glamor_priv->vb + glamor_priv->vbo_offset;
}
static Bool
@ -1420,7 +1422,6 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
BoxRec one_trap_bound;
int nrect_max;
int i, j;
float *vertices;
float params[4];
glamor_priv = glamor_get_screen_private(screen);
@ -1461,11 +1462,12 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
nrect_max = GLAMOR_COMPOSITE_VBO_VERT_CNT / (4 * GLAMOR_VERTEX_RIGHT_PARAM);
for (i = 0; i < ntrap;) {
float *vertices;
int mrect;
int stride;
mrect = (ntrap - i) > nrect_max ? nrect_max : (ntrap - i);
glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
vertices = glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
stride = glamor_priv->vb_stride / sizeof(float);
for (j = 0; j < mrect; j++) {
@ -1488,8 +1490,7 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
miTrapezoidBounds(1, ptrap, &one_trap_bound);
vertices =
(float *) (glamor_priv->vb + glamor_priv->vbo_offset) + 2;
vertices += 2;
glamor_set_tcoords_ext((pixmap_priv->base.pixmap->drawable.width),
(pixmap_priv->base.pixmap->drawable.height),
(one_trap_bound.x1), (one_trap_bound.y1),
@ -1561,6 +1562,7 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
}
params[2] = right_slope;
glamor_set_const_ext(params, 4, vertices, 4, stride);
vertices += 4;
DEBUGF("trap_top = %f, trap_bottom = %f, "
"trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
@ -1574,6 +1576,8 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
glamor_priv->render_nr_verts += 4;
glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
vertices += 3 * stride;
}
i += mrect;