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glamor: Track the next vertex offset as we go in render accel.

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I want to extract the VBO mapping code, and as part of that I need to
get the global vbo_offset munging to stop.

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 16:57:46 -08:00
parent 438d8aceec
commit 03a33048a7
2 changed files with 11 additions and 5 deletions
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2
glamor/glamor_priv.h
View File

@ -702,7 +702,7 @@ void glamor_composite_set_shader_blend(glamor_pixmap_private *dest_priv,
glamor_composite_shader *shader,
struct blendinfo *op_info);
void glamor_setup_composite_vbo(ScreenPtr screen, int n_verts);
void *glamor_setup_composite_vbo(ScreenPtr screen, int n_verts);
/* glamor_trapezoid.c */
void glamor_trapezoids(CARD8 op,

14
glamor/glamor_render.c
View File

@ -701,7 +701,7 @@ glamor_composite_with_copy(CARD8 op,
return ret;
}
void
void *
glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
@ -765,6 +765,8 @@ glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
glEnableVertexAttribArray(GLAMOR_VERTEX_MASK);
}
glamor_put_context(glamor_priv);
return glamor_priv->vb + glamor_priv->vbo_offset;
}
static void
@ -1226,7 +1228,6 @@ glamor_composite_with_shader(CARD8 op,
GLfloat dst_xscale, dst_yscale;
GLfloat mask_xscale = 1, mask_yscale = 1, src_xscale = 1, src_yscale = 1;
struct shader_key key, key_ca;
float *vertices;
int dest_x_off, dest_y_off;
int source_x_off, source_y_off;
int mask_x_off, mask_y_off;
@ -1303,9 +1304,10 @@ glamor_composite_with_shader(CARD8 op,
while (nrect) {
int mrect, rect_processed;
int vb_stride;
float *vertices;
mrect = nrect > nrect_max ? nrect_max : nrect;
glamor_setup_composite_vbo(screen, mrect * vert_stride);
vertices = glamor_setup_composite_vbo(screen, mrect * vert_stride);
rect_processed = mrect;
vb_stride = glamor_priv->vb_stride / sizeof(float);
while (mrect--) {
@ -1331,7 +1333,7 @@ glamor_composite_with_shader(CARD8 op,
("dest(%d,%d) source(%d %d) mask (%d %d), width %d height %d \n",
x_dest, y_dest, x_source, y_source, x_mask, y_mask, width,
height);
vertices = (float *) (glamor_priv->vb + glamor_priv->vbo_offset);
assert(glamor_priv->vbo_offset <
glamor_priv->vbo_size - glamor_priv->vb_stride);
glamor_set_normalize_vcoords_ext(dest_pixmap_priv, dst_xscale,
@ -1361,10 +1363,14 @@ glamor_composite_with_shader(CARD8 op,
y_mask + height,
glamor_priv->yInverted,
vertices, vb_stride);
vertices += 2;
}
glamor_priv->render_nr_verts += 4;
glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
rects++;
/* We've incremented by one of our 4 verts, now do the other 3. */
vertices += 3 * vb_stride;
}
glamor_flush_composite_rects(screen);
nrect -= rect_processed;