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/*
* Mesa 3-D graphics library
* Version: 7.8
*
* Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
*
* 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
* BRIAN PAUL 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 _NATIVE_H_
#define _NATIVE_H_
#include "EGL/egl.h" /* for EGL native types */
#include "GL/gl.h" /* for GL types needed by __GLcontextModes */
#include "GL/internal/glcore.h" /* for __GLcontextModes */
#include "pipe/p_compiler.h"
#include "pipe/p_screen.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
/**
* Only color buffers are listed. The others are allocated privately through,
* for example, st_renderbuffer_alloc_storage().
*/
enum native_attachment {
NATIVE_ATTACHMENT_FRONT_LEFT,
NATIVE_ATTACHMENT_BACK_LEFT,
NATIVE_ATTACHMENT_FRONT_RIGHT,
NATIVE_ATTACHMENT_BACK_RIGHT,
NUM_NATIVE_ATTACHMENTS
};
struct native_surface {
void (*destroy)(struct native_surface *nsurf);
/**
* Swap the front and back buffers so that the back buffer is visible. It
* is no-op if the surface is single-buffered. The contents of the back
* buffer after swapping may or may not be preserved.
*/
boolean (*swap_buffers)(struct native_surface *nsurf);
/**
* Make the front buffer visible. In some native displays, changes to the
* front buffer might not be visible immediately and require manual flush.
*/
boolean (*flush_frontbuffer)(struct native_surface *nsurf);
/**
* Validate the buffers of the surface. The returned textures are owned by
* the caller. A sequence number is also returned. The caller can use it
* to check if anything has changed since the last call. Any of the pointers
* may be NULL and it indicates the caller has no interest in those values.
*
* If this function is called multiple times with different attachments,
* those not listed in the latest call might be destroyed. This behavior
* might change in the future.
*/
boolean (*validate)(struct native_surface *nsurf,
const enum native_attachment *natts,
unsigned num_natts,
unsigned int *seq_num, struct pipe_texture **textures,
int *width, int *height);
/**
* Wait until all native commands affecting the surface has been executed.
*/
void (*wait)(struct native_surface *nsurf);
};
struct native_config {
/* __GLcontextModes should go away some day */
__GLcontextModes mode;
enum pipe_format color_format;
enum pipe_format depth_format;
enum pipe_format stencil_format;
/* treat it as an additional flag to mode.drawableType */
boolean scanout_bit;
};
struct native_connector {
int dummy;
};
struct native_mode {
const char *desc;
int width, height;
int refresh_rate;
};
struct native_display_modeset;
/**
* A pipe winsys abstracts the OS. A pipe screen abstracts the graphcis
* hardware. A native display consists of a pipe winsys, a pipe screen, and
* the native display server.
*/
struct native_display {
/**
* The pipe screen of the native display.
*
* Note that the "flush_frontbuffer" and "update_buffer" callbacks will be
* overridden.
*/
struct pipe_screen *screen;
void (*destroy)(struct native_display *ndpy);
/**
* Get the supported configs. The configs are owned by the display, but
* the returned array should be free()ed.
*
* The configs will be converted to EGL config by
* _eglConfigFromContextModesRec and validated by _eglValidateConfig.
* Those failing to pass the test will be skipped.
*/
const struct native_config **(*get_configs)(struct native_display *ndpy,
int *num_configs);
/**
* Create a pipe context.
*/
struct pipe_context *(*create_context)(struct native_display *ndpy,
void *context_private);
/**
* Create a window surface. Required unless no config has GLX_WINDOW_BIT
* set.
*/
struct native_surface *(*create_window_surface)(struct native_display *ndpy,
EGLNativeWindowType win,
const struct native_config *nconf);
/**
* Create a pixmap surface. Required unless no config has GLX_PIXMAP_BIT
* set.
*/
struct native_surface *(*create_pixmap_surface)(struct native_display *ndpy,
EGLNativePixmapType pix,
const struct native_config *nconf);
/**
* Create a pbuffer surface. Required unless no config has GLX_PBUFFER_BIT
* set.
*/
struct native_surface *(*create_pbuffer_surface)(struct native_display *ndpy,
const struct native_config *nconf,
uint width, uint height);
const struct native_display_modeset *modeset;
};
/**
* Mode setting interface of the native display. It exposes the mode setting
* capabilities of the underlying graphics hardware.
*/
struct native_display_modeset {
/**
* Get the available physical connectors and the number of CRTCs.
*/
const struct native_connector **(*get_connectors)(struct native_display *ndpy,
int *num_connectors,
int *num_crtcs);
/**
* Get the current supported modes of a connector. The returned modes may
* change every time this function is called and those from previous calls
* might become invalid.
*/
const struct native_mode **(*get_modes)(struct native_display *ndpy,
const struct native_connector *nconn,
int *num_modes);
/**
* Create a scan-out surface. Required unless no config has
* GLX_SCREEN_BIT_MESA set.
*/
struct native_surface *(*create_scanout_surface)(struct native_display *ndpy,
const struct native_config *nconf,
uint width, uint height);
/**
* Program the CRTC to output the surface to the given connectors with the
* given mode. When surface is not given, the CRTC is disabled.
*
* This interface does not export a way to query capabilities of the CRTCs.
* The native display usually needs to dynamically map the index to a CRTC
* that supports the given connectors.
*/
boolean (*program)(struct native_display *ndpy, int crtc_idx,
struct native_surface *nsurf, uint x, uint y,
const struct native_connector **nconns, int num_nconns,
const struct native_mode *nmode);
};
const char *
native_get_name(void);
struct native_display *
native_create_display(EGLNativeDisplayType dpy);
#endif /* _NATIVE_H_ */
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