srv.h

Lido PXA270平台开发板的最新BSP,包括源代码

/* -*- c-file-style: "img" -*-
<module>
 * Name         : srv.h
 * Title        : Service Interface API.
 * Author       : Marcus Shawcroft
 * Created      : 4 Nov 2003
 *
 * Copyright    : 2003 by Imagination Technologies Limited.
 *                All rights reserved.  No part of this software, either
 *                material or conceptual may be copied or distributed,
 *                transmitted, transcribed, stored in a retrieval system
 *                or translated into any human or computer language in any
 *                form by any means, electronic, mechanical, manual or
 *                other-wise, or disclosed to third parties without the
 *                express written permission of Imagination Technologies
 *                Limited, Unit 8, HomePark Industrial Estate,
 *                King's Langley, Hertfordshire, WD4 8LZ, U.K.
 *
 * Description  : Service interface for Khronos EGL API.
 * 
 * Platform     : ALL
 *
</module>
 */

#ifndef _srv_h_
#define _srv_h_

#include "drvegl.h"

extern const EGLint SRV_pixel_format_alpha [];
extern const EGLint SRV_pixel_format_red [];
extern const EGLint SRV_pixel_format_green [];
extern const EGLint SRV_pixel_format_blue [];
extern const EGLint SRV_pixel_format_width [];

/*
   <function>
   FUNCTION   : SRV_Initialise
   PURPOSE    : Open a connection to services.
   PARAMETERS : Out: systemContext - Receives system context.
   RETURNS    : EGL_SUCCESS - Success
                Other EGL error code on failure.
   </function>
 */
EGLint
SRV_Initialise (GLESSysContext *psSysContext);

/*
   <function>
   FUNCTION   : SRV_Finalise
   PURPOSE    : Close a connection to services.
   PARAMETERS : In: systemContext - System context.
   RETURNS    : EGL_SUCCESS - Success
                Other EGL error code on failure.
   </function>
 */
EGLint
SRV_Finalise (GLESSysContext *systemContext);

/*
   <function>
   FUNCTION   : SRV_FindGLESPixelFormat
   PURPOSE    : Search for a GLES pixel format that matches ARGB pixel widths.
   PARAMETERS : In:  a - alpha channel width
                In:  r - red channel width
                In:  g - green channel width
                In:  b - blue channel width
                Out: pixel_size - receives the pixel width in bytes
   RETURNS    : pixel format
   </function>
 */
EGLint
SRV_FindGLESPixelFormat (EGLint a,
			 EGLint r,
			 EGLint g,
			 EGLint b,
			 EGLint *pixel_size);
/*
   <function>
   FUNCTION   : SRV_FindPVRPixelFormat
   PURPOSE    : Search for a GLES pixel format that matches ARGB pixel widths.
   PARAMETERS : In:  a - alpha channel width
                In:  r - red channel width
                In:  g - green channel width
                In:  b - blue channel width
                Out: pixel_format - receives pixel format.
                Out: pixel_width - receives pixel width in bytes.
   RETURNS    : EGL_TRUE - Success.
                EGL_FALSE - Failure.
   </function>
 */
EGLBoolean
SRV_FindPVRPixelFormat (EGLint a,
			EGLint r,
			EGLint g,
			EGLint b,
			PVRSRV_PIXEL_FORMAT *pixel_format,	
			EGLint *pixel_width);

#endif