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background: Fix gradient color rendering
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
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@ -33,12 +33,6 @@
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#include <meta/meta-background.h>
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#include "meta-background-actor-private.h"
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_BGRA_8888_PRE
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#else
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#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_ARGB_8888_PRE
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#endif
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#define TEXTURE_LOOKUP_SHADER_DECLARATIONS \
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"uniform vec2 pixel_step;\n" \
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"vec4 apply_blur(in sampler2D texture, in vec2 coordinates) {\n" \
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@ -932,9 +926,10 @@ meta_background_load_gradient (MetaBackground *self,
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pixels[5] = second_color->green;
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pixels[6] = second_color->blue;
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pixels[7] = second_color->alpha;
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texture = cogl_texture_new_from_data (width, height,
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COGL_TEXTURE_NO_SLICING,
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TEXTURE_FORMAT,
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COGL_PIXEL_FORMAT_RGBA_8888,
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COGL_PIXEL_FORMAT_ANY,
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4,
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pixels);
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