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Adds some debug code to _cogl_journal_flush_quad_batch

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The code is #if 0 guarded, but when uncommented it outlines all drawn
rectangles with an un-blended red, green or blue border. This may e.g. help
with debugging texture slicing issues or blending issues, plus it looks quite
cool.
This commit is contained in:
Robert Bragg 2009-01-28 13:46:39 +00:00
parent 1f473c02e0
commit 1d86b04e06
1 changed files with 27 additions and 0 deletions
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27
gl/cogl-texture.c
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@ -2051,6 +2051,33 @@ _cogl_journal_flush_quad_batch (CoglJournalEntry *batch_start,
6 * batch_len,
GL_UNSIGNED_SHORT,
ctx->static_indices->data));
/* DEBUGGING CODE XXX:
* Uncommenting this will cause all rectangles to be drawn with a red, green
* or blue outline with no blending. This may e.g. help with debugging
* texture slicing issues or blending issues, plus it looks quite cool.
*/
#if 0
{
static CoglHandle outline = COGL_INVALID_HANDLE;
static int color = 0;
if (outline == COGL_INVALID_HANDLE)
outline = cogl_material_new ();
cogl_enable (COGL_ENABLE_VERTEX_ARRAY);
for (i = 0; i < batch_len; i++, color = (++color) % 3)
{
cogl_material_set_color4ub (outline,
color == 0 ? 0xff : 0x00,
color == 1 ? 0xff : 0x00,
color == 2 ? 0xff : 0x00,
0xff);
cogl_material_flush_gl_state (outline, NULL);
GE( glDrawArrays (GL_LINE_LOOP, 4 * i, 4) );
}
}
#endif
}
static void