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authorMarco Trevisan (Treviño) <mail@3v1n0.net>2014-12-02 14:59:47 +0100
committerMarco Trevisan (Treviño) <mail@3v1n0.net>2014-12-02 14:59:47 +0100
commitaf2ac29faf371f2eacbecaba534107eb6127d124 (patch)
treef1a74fdbcf19cf72a14f77eaadafaa8a0259f3e2 /gdk/gdkgl.c
parentcb3393f001b432cf863dc3d2e8eba63b5a8a6647 (diff)
downloadgtk+-af2ac29faf371f2eacbecaba534107eb6127d124.tar.gz
gdkgl: pass the correct number of quads to gdk_gl_texture_quads
And call it only if that's the case
Diffstat (limited to 'gdk/gdkgl.c')
-rw-r--r--gdk/gdkgl.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/gdk/gdkgl.c b/gdk/gdkgl.c
index 6791960100..af47d8c45d 100644
--- a/gdk/gdkgl.c
+++ b/gdk/gdkgl.c
@@ -477,7 +477,7 @@ gdk_cairo_draw_from_gl (cairo_t *cr,
int unscaled_window_height;
GLint texture_width;
GLint texture_height;
- int i, n_rects;
+ int i, n_rects, n_quads;
GdkTexturedQuad *quads;
cairo_rectangle_int_t clip_rect;
@@ -530,6 +530,7 @@ gdk_cairo_draw_from_gl (cairo_t *cr,
glScissor (clip_rect.x, FLIP_Y (clip_rect.y + clip_rect.height),
clip_rect.width, clip_rect.height);
+ n_quads = 0;
n_rects = cairo_region_num_rectangles (clip_region);
quads = g_new (GdkTexturedQuad, n_rects);
for (i = 0; i < n_rects; i++)
@@ -559,7 +560,7 @@ gdk_cairo_draw_from_gl (cairo_t *cr,
(clipped_src_x + dest.width) / (float)texture_width, clipped_src_y / (float)texture_height,
};
- quads[i] = quad;
+ quads[n_quads++] = quad;
if (impl_window->current_paint.flushed_region)
{
@@ -578,7 +579,9 @@ gdk_cairo_draw_from_gl (cairo_t *cr,
}
}
- gdk_gl_texture_quads (paint_context, GL_TEXTURE_2D, n_rects, quads);
+ if (n_quads > 0)
+ gdk_gl_texture_quads (paint_context, GL_TEXTURE_2D, n_quads, quads);
+
g_free (quads);
if (alpha_size != 0)