weston/libweston/gl-renderer.h

119 lines
3.6 KiB
C

/*
* Copyright © 2012 John Kåre Alsaker
*
* 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 (including the
* next paragraph) 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.
*/
#include "config.h"
#include <stdint.h>
#include "compositor.h"
#ifdef ENABLE_EGL
#include <EGL/egl.h>
#include <EGL/eglext.h>
#else
typedef int EGLint;
typedef int EGLenum;
typedef void *EGLDisplay;
typedef void *EGLSurface;
typedef void *EGLConfig;
typedef intptr_t EGLNativeDisplayType;
typedef intptr_t EGLNativeWindowType;
#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType)0)
#endif /* ENABLE_EGL */
#define NO_EGL_PLATFORM 0
enum gl_renderer_border_side {
GL_RENDERER_BORDER_TOP = 0,
GL_RENDERER_BORDER_LEFT = 1,
GL_RENDERER_BORDER_RIGHT = 2,
GL_RENDERER_BORDER_BOTTOM = 3,
};
struct gl_renderer_interface {
const EGLint *opaque_attribs;
const EGLint *alpha_attribs;
int (*display_create)(struct weston_compositor *ec,
EGLenum platform,
void *native_window,
const EGLint *platform_attribs,
const EGLint *config_attribs,
const EGLint *visual_id,
const int n_ids);
EGLDisplay (*display)(struct weston_compositor *ec);
int (*output_window_create)(struct weston_output *output,
EGLNativeWindowType window_for_legacy,
void *window_for_platform,
const EGLint *config_attribs,
const EGLint *visual_id,
const int n_ids);
void (*output_destroy)(struct weston_output *output);
EGLSurface (*output_surface)(struct weston_output *output);
/* Sets the output border.
*
* The side specifies the side for which we are setting the border.
* The width and height are the width and height of the border.
* The tex_width patemeter specifies the width of the actual
* texture; this may be larger than width if the data is not
* tightly packed.
*
* The top and bottom textures will extend over the sides to the
* full width of the bordered window. The right and left edges,
* however, will extend only to the top and bottom of the
* compositor surface. This is demonstrated by the picture below:
*
* +-----------------------+
* | TOP |
* +-+-------------------+-+
* | | | |
* |L| |R|
* |E| |I|
* |F| |G|
* |T| |H|
* | | |T|
* | | | |
* +-+-------------------+-+
* | BOTTOM |
* +-----------------------+
*/
void (*output_set_border)(struct weston_output *output,
enum gl_renderer_border_side side,
int32_t width, int32_t height,
int32_t tex_width, unsigned char *data);
void (*print_egl_error_state)(void);
};