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Bug 1210 - Add CoglColor API * clutter/cogl/cogl-color.h: * clutter/cogl/cogl.h.in: * clutter/cogl/common/Makefile.am: * clutter/cogl/common/cogl-color.c: * clutter/cogl/gl/Makefile.am: * clutter/cogl/gl/cogl.c: * clutter/cogl/gles/Makefile.am: * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl.c: Add a new color-type, to be used by COGL. CoglColor is optimized to allow the minimum amount of conversions possible for both GL and GLES implementations. * clutter/clutter-actor.c: * clutter/clutter-clone-texture.c: * clutter/clutter-entry.c: * clutter/clutter-main.c: * clutter/clutter-rectangle.c: * clutter/clutter-stage.c: * clutter/clutter-texture.c: Use CoglColor when needed. * clutter/pango/pangoclutter-render.c: Use CoglColor when needed. * doc/reference/cogl/cogl-docs.sgml: * doc/reference/cogl/cogl-sections.txt: Update the documentation. * tests/test-cogl-offscreen.c: * tests/test-cogl-primitives.c: * tests/test-cogl-tex-convert.c: * tests/test-cogl-tex-foreign.c: * tests/test-cogl-tex-getset.c: * tests/test-cogl-tex-polygon.c: * tests/test-cogl-tex-tile.c: * tests/test-paint-wrapper.c: Update the tests. * README: Update release notes.
224 lines
5.1 KiB
C
224 lines
5.1 KiB
C
#ifndef __COGL_COLOR_H__
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#define __COGL_COLOR_H__
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#include <glib.h>
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#include <cogl/cogl-fixed.h>
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G_BEGIN_DECLS
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typedef struct _CoglColor CoglColor;
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/**
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* CoglColor:
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*
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* A structure for holding a color definition. The contents of
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* the CoglColor structure are private and should never by accessed
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* directly.
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*
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* Since: 1.0
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*/
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struct _CoglColor
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{
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/*< private >*/
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CoglFixed red;
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CoglFixed green;
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CoglFixed blue;
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CoglFixed alpha;
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};
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/**
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* cogl_color_set_from_4ub:
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* @dest: return location for a #CoglColor
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* @red: value of the red channel, between 0 and 255
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* @green: value of the green channel, between 0 and 255
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* @blue: value of the blue channel, between 0 and 255
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* @alpha: value of the alpha channel, between 0 and 255
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*
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* Sets the values of the passed channel into a #CoglColor.
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*
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* Since: 1.0
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*/
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void cogl_color_set_from_4ub (CoglColor *dest,
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guint8 red,
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guint8 green,
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guint8 blue,
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guint8 alpha);
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/**
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* cogl_color_set_from_4ub:
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* @dest: return location for a #CoglColor
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* @red: value of the red channel, between 0 and 1
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* @green: value of the green channel, between 0 and 1
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* @blue: value of the blue channel, between 0 and 1
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* @alpha: value of the alpha channel, between 0 and 1
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*
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* Sets the values of the passed channel into a #CoglColor.
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*
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* Since: 1.0
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*/
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void cogl_color_set_from_4d (CoglColor *dest,
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gdouble red,
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gdouble green,
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gdouble blue,
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gdouble alpha);
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/**
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* cogl_color_get_red_byte:
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* @color: a #CoglColor
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*
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* Retrieves the red channel of @color as a byte value
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* between 0 and 255
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*
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* Return value: the red channel of the passed color
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*
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* Since: 1.0
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*/
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unsigned char cogl_color_get_red_byte (const CoglColor *color);
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/**
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* cogl_color_get_green_byte:
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* @color: a #CoglColor
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*
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* Retrieves the green channel of @color as a byte value
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* between 0 and 255
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*
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* Return value: the green channel of the passed color
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*
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* Since: 1.0
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*/
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unsigned char cogl_color_get_green_byte (const CoglColor *color);
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/**
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* cogl_color_get_blue_byte:
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* @color: a #CoglColor
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*
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* Retrieves the blue channel of @color as a byte value
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* between 0 and 255
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*
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* Return value: the blue channel of the passed color
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*
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* Since: 1.0
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*/
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unsigned char cogl_color_get_blue_byte (const CoglColor *color);
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/**
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* cogl_color_get_alpha_byte:
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* @color: a #CoglColor
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*
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* Retrieves the alpha channel of @color as a byte value
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* between 0 and 255
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*
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* Return value: the alpha channel of the passed color
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*
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* Since: 1.0
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*/
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unsigned char cogl_color_get_alpha_byte (const CoglColor *color);
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/**
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* cogl_color_get_red_float:
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* @color: a #CoglColor
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*
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* Retrieves the red channel of @color as a floating point
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* value between 0.0 and 1.0
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*
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* Return value: the red channel of the passed color
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*
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* Since: 1.0
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*/
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float cogl_color_get_red_float (const CoglColor *color);
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/**
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* cogl_color_get_green_float:
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* @color: a #CoglColor
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*
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* Retrieves the green channel of @color as a floating point
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* value between 0.0 and 1.0
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*
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* Return value: the green channel of the passed color
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*
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* Since: 1.0
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*/
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float cogl_color_get_green_float (const CoglColor *color);
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/**
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* cogl_color_get_blue_float:
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* @color: a #CoglColor
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*
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* Retrieves the blue channel of @color as a floating point
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* value between 0.0 and 1.0
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*
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* Return value: the blue channel of the passed color
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*
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* Since: 1.0
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*/
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float cogl_color_get_blue_float (const CoglColor *color);
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/**
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* cogl_color_get_alpha_float:
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* @color: a #CoglColor
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*
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* Retrieves the alpha channel of @color as a floating point
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* value between 0.0 and 1.0
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*
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* Return value: the alpha channel of the passed color
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*
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* Since: 1.0
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*/
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float cogl_color_get_alpha_float (const CoglColor *color);
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/**
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* cogl_color_get_red:
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* @color: a #CoglColor
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*
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* Retrieves the red channel of @color as a fixed point
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* value between 0 and %COGL_FIXED_1.
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*
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* Return value: the red channel of the passed color
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*
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* Since: 1.0
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*/
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CoglFixed cogl_color_get_red (const CoglColor *color);
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/**
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* cogl_color_get_green:
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* @color: a #CoglColor
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*
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* Retrieves the green channel of @color as a fixed point
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* value between 0 and %COGL_FIXED_1.
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*
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* Return value: the green channel of the passed color
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*
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* Since: 1.0
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*/
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CoglFixed cogl_color_get_green (const CoglColor *color);
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/**
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* cogl_color_get_blue:
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* @color: a #CoglColor
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*
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* Retrieves the blue channel of @color as a fixed point
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* value between 0 and %COGL_FIXED_1.
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*
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* Return value: the blue channel of the passed color
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*
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* Since: 1.0
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*/
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CoglFixed cogl_color_get_blue (const CoglColor *color);
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/**
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* cogl_color_get_alpha:
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* @color: a #CoglColor
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*
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* Retrieves the alpha channel of @color as a fixed point
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* value between 0 and %COGL_FIXED_1.
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*
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* Return value: the alpha channel of the passed color
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*
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* Since: 1.0
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*/
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CoglFixed cogl_color_get_alpha (const CoglColor *color);
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G_END_DECLS
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#endif /* __COGL_COLOR_H__ */
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