mirror of
https://github.com/brl/mutter.git
synced 2024-11-25 01:20:42 -05:00
a81435ab5f
This basically reverts commit 54735dec, which tried to avoid the
GLib-defined types in favor the standard C ones. One exception to this
is the bool type, for which the commit introduces a new type CoglBool.
Let's just get rid of this type in favor of having consistency with the
GLib types. Note by the way that neither CoglBool nor gboolean (which
has a size of `int`) are completely compatible with bool (size `char`).
https://gitlab.gnome.org/GNOME/mutter/merge_requests/321
198 lines
7.2 KiB
C
198 lines
7.2 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* A Low Level GPU Graphics and Utilities API
|
|
*
|
|
* Copyright (C) 2007,2008,2009 Intel Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef __COGL_PRIMITIVES_H
|
|
#define __COGL_PRIMITIVES_H
|
|
|
|
#include <glib.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-primitives
|
|
* @short_description: Functions that draw various primitive 3D shapes
|
|
*
|
|
* The primitives API provides utilities for drawing some
|
|
* common 3D shapes in a more convenient way than the CoglVertexBuffer
|
|
* API provides.
|
|
*/
|
|
|
|
/**
|
|
* cogl_rectangle:
|
|
* @x_1: X coordinate of the top-left corner
|
|
* @y_1: Y coordinate of the top-left corner
|
|
* @x_2: X coordinate of the bottom-right corner
|
|
* @y_2: Y coordinate of the bottom-right corner
|
|
*
|
|
* Fills a rectangle at the given coordinates with the current source material
|
|
**/
|
|
void
|
|
cogl_rectangle (float x_1,
|
|
float y_1,
|
|
float x_2,
|
|
float y_2);
|
|
|
|
/**
|
|
* cogl_rectangle_with_texture_coords:
|
|
* @x1: x coordinate upper left on screen.
|
|
* @y1: y coordinate upper left on screen.
|
|
* @x2: x coordinate lower right on screen.
|
|
* @y2: y coordinate lower right on screen.
|
|
* @tx1: x part of texture coordinate to use for upper left pixel
|
|
* @ty1: y part of texture coordinate to use for upper left pixel
|
|
* @tx2: x part of texture coordinate to use for lower right pixel
|
|
* @ty2: y part of texture coordinate to use for left pixel
|
|
*
|
|
* Draw a rectangle using the current material and supply texture coordinates
|
|
* to be used for the first texture layer of the material. To draw the entire
|
|
* texture pass in @tx1=0.0 @ty1=0.0 @tx2=1.0 @ty2=1.0.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
cogl_rectangle_with_texture_coords (float x1,
|
|
float y1,
|
|
float x2,
|
|
float y2,
|
|
float tx1,
|
|
float ty1,
|
|
float tx2,
|
|
float ty2);
|
|
|
|
/**
|
|
* cogl_rectangle_with_multitexture_coords:
|
|
* @x1: x coordinate upper left on screen.
|
|
* @y1: y coordinate upper left on screen.
|
|
* @x2: x coordinate lower right on screen.
|
|
* @y2: y coordinate lower right on screen.
|
|
* @tex_coords: (in) (array) (transfer none): An array containing groups of
|
|
* 4 float values: [tx1, ty1, tx2, ty2] that are interpreted as two texture
|
|
* coordinates; one for the upper left texel, and one for the lower right
|
|
* texel. Each value should be between 0.0 and 1.0, where the coordinate
|
|
* (0.0, 0.0) represents the top left of the texture, and (1.0, 1.0) the
|
|
* bottom right.
|
|
* @tex_coords_len: The length of the tex_coords array. (e.g. for one layer
|
|
* and one group of texture coordinates, this would be 4)
|
|
*
|
|
* This function draws a rectangle using the current source material to
|
|
* texture or fill with. As a material may contain multiple texture layers
|
|
* this interface lets you supply texture coordinates for each layer of the
|
|
* material.
|
|
*
|
|
* The first pair of coordinates are for the first layer (with the smallest
|
|
* layer index) and if you supply less texture coordinates than there are
|
|
* layers in the current source material then default texture coordinates
|
|
* (0.0, 0.0, 1.0, 1.0) are generated.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
cogl_rectangle_with_multitexture_coords (float x1,
|
|
float y1,
|
|
float x2,
|
|
float y2,
|
|
const float *tex_coords,
|
|
int tex_coords_len);
|
|
|
|
/**
|
|
* cogl_rectangles_with_texture_coords:
|
|
* @verts: (in) (array) (transfer none): an array of vertices
|
|
* @n_rects: number of rectangles to draw
|
|
*
|
|
* Draws a series of rectangles in the same way that
|
|
* cogl_rectangle_with_texture_coords() does. In some situations it can give a
|
|
* significant performance boost to use this function rather than
|
|
* calling cogl_rectangle_with_texture_coords() separately for each rectangle.
|
|
*
|
|
* @verts should point to an array of #float<!-- -->s with
|
|
* @n_rects * 8 elements. Each group of 8 values corresponds to the
|
|
* parameters x1, y1, x2, y2, tx1, ty1, tx2 and ty2 and have the same
|
|
* meaning as in cogl_rectangle_with_texture_coords().
|
|
*
|
|
* Since: 0.8.6
|
|
*/
|
|
void
|
|
cogl_rectangles_with_texture_coords (const float *verts,
|
|
unsigned int n_rects);
|
|
|
|
/**
|
|
* cogl_rectangles:
|
|
* @verts: (in) (array) (transfer none): an array of vertices
|
|
* @n_rects: number of rectangles to draw
|
|
*
|
|
* Draws a series of rectangles in the same way that
|
|
* cogl_rectangle() does. In some situations it can give a
|
|
* significant performance boost to use this function rather than
|
|
* calling cogl_rectangle() separately for each rectangle.
|
|
*
|
|
* @verts should point to an array of #float<!-- -->s with
|
|
* @n_rects * 4 elements. Each group of 4 values corresponds to the
|
|
* parameters x1, y1, x2, and y2, and have the same
|
|
* meaning as in cogl_rectangle().
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
cogl_rectangles (const float *verts,
|
|
unsigned int n_rects);
|
|
|
|
/**
|
|
* cogl_polygon:
|
|
* @vertices: An array of #CoglTextureVertex structs
|
|
* @n_vertices: The length of the vertices array
|
|
* @use_color: %TRUE if the color member of #CoglTextureVertex should be used
|
|
*
|
|
* Draws a convex polygon using the current source material to fill / texture
|
|
* with according to the texture coordinates passed.
|
|
*
|
|
* If @use_color is %TRUE then the color will be changed for each vertex using
|
|
* the value specified in the color member of #CoglTextureVertex. This can be
|
|
* used for example to make the texture fade out by setting the alpha value of
|
|
* the color.
|
|
*
|
|
* All of the texture coordinates must be in the range [0,1] and repeating the
|
|
* texture is not supported.
|
|
*
|
|
* Because of the way this function is implemented it will currently
|
|
* only work if either the texture is not sliced or the backend is not
|
|
* OpenGL ES and the minifying and magnifying functions are both set
|
|
* to COGL_MATERIAL_FILTER_NEAREST.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
void
|
|
cogl_polygon (const CoglTextureVertex *vertices,
|
|
unsigned int n_vertices,
|
|
gboolean use_color);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_PRIMITIVES_H */
|