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weston/src/gl-renderer.h

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/*
* Copyright © 2012 John Kåre Alsaker
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include "compositor.h"
#ifdef ENABLE_EGL
#include <EGL/egl.h>
#else
typedef int EGLint;
typedef void *EGLDisplay;
typedef void *EGLSurface;
typedef intptr_t EGLNativeDisplayType;
typedef intptr_t EGLNativeWindowType;
#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType)0)
#endif
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 (*create)(struct weston_compositor *ec,
EGLNativeDisplayType display,
const EGLint *attribs,
const EGLint *visual_id);
EGLDisplay (*display)(struct weston_compositor *ec);
int (*output_create)(struct weston_output *output,
EGLNativeWindowType window,
const EGLint *attribs,
const EGLint *visual_id);
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);
};