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gdkgl: pass the correct number of quads to gdk_gl_texture_quads

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And call it only if that's the case
This commit is contained in:
Marco Trevisan (Treviño) 2014-12-02 14:59:47 +01:00
parent cb3393f001
commit af2ac29faf
1 changed files with 6 additions and 3 deletions
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9
gdk/gdkgl.c
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@ -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)