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background: Fix gradient color rendering

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There is currently code to try to fill gradients in a
hardware native format, using #ifdefs. That optimization is
unimportant since gradients only use 2 byte buffers. It's
also incorrect because it's getting the channel order wrong
at buffer initialization time.

This commit drops the ifdefs for clarity and fixes the
channel order.

https://bugzilla.gnome.org/show_bug.cgi?id=694641
This commit is contained in:
Ray Strode 2013-02-21 22:07:43 -05:00
parent de36d51b91
commit e623406c99
1 changed files with 2 additions and 7 deletions
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9
src/compositor/meta-background.c
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@ -33,12 +33,6 @@
#include <meta/meta-background.h>
#include "meta-background-actor-private.h"
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_BGRA_8888_PRE
#else
#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_ARGB_8888_PRE
#endif
#define TEXTURE_LOOKUP_SHADER_DECLARATIONS \
"uniform vec2 pixel_step;\n" \
"vec4 apply_blur(in sampler2D texture, in vec2 coordinates) {\n" \
@ -932,9 +926,10 @@ meta_background_load_gradient (MetaBackground *self,
pixels[5] = second_color->green;
pixels[6] = second_color->blue;
pixels[7] = second_color->alpha;
texture = cogl_texture_new_from_data (width, height,
COGL_TEXTURE_NO_SLICING,
TEXTURE_FORMAT,
COGL_PIXEL_FORMAT_RGBA_8888,
COGL_PIXEL_FORMAT_ANY,
4,
pixels);