crOpenGL/pack/packspu_getstring.c

	packspu_getstring.c revision 49ad08ab15f3b96d2d5ba5134a0506dd7b27fdf1
45e9809aff7304721fddb95654901b32195c9c7avboxsync/* Copyright (c) 2001, Stanford University
45e9809aff7304721fddb95654901b32195c9c7avboxsync * All rights reserved
45e9809aff7304721fddb95654901b32195c9c7avboxsync *
45e9809aff7304721fddb95654901b32195c9c7avboxsync * See the file LICENSE.txt for information on redistributing this software.
45e9809aff7304721fddb95654901b32195c9c7avboxsync */
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync#include "packspu.h"
45e9809aff7304721fddb95654901b32195c9c7avboxsync#include "cr_packfunctions.h"
45e9809aff7304721fddb95654901b32195c9c7avboxsync#include "state/cr_statefuncs.h"
45e9809aff7304721fddb95654901b32195c9c7avboxsync#include "cr_string.h"
45e9809aff7304721fddb95654901b32195c9c7avboxsync#include "packspu_proto.h"
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstatic GLubyte gpszExtensions[10000];
45e9809aff7304721fddb95654901b32195c9c7avboxsync#ifdef CR_OPENGL_VERSION_2_0
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstatic GLubyte gpszShadingVersion[255]="";
45e9809aff7304721fddb95654901b32195c9c7avboxsync#endif
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstatic void GetString(GLenum name, GLubyte *pszStr)
45e9809aff7304721fddb95654901b32195c9c7avboxsync{
45e9809aff7304721fddb95654901b32195c9c7avboxsync    GET_THREAD(thread);
45e9809aff7304721fddb95654901b32195c9c7avboxsync    int writeback = 1;
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync    if (pack_spu.swap)
45e9809aff7304721fddb95654901b32195c9c7avboxsync        crPackGetStringSWAP(name, pszStr, &writeback);
45e9809aff7304721fddb95654901b32195c9c7avboxsync    else
45e9809aff7304721fddb95654901b32195c9c7avboxsync        crPackGetString(name, pszStr, &writeback);
45e9809aff7304721fddb95654901b32195c9c7avboxsync    packspuFlush( (void *) thread );
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync    while (writeback)
45e9809aff7304721fddb95654901b32195c9c7avboxsync        crNetRecv();
45e9809aff7304721fddb95654901b32195c9c7avboxsync}
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstatic GLfloat
45e9809aff7304721fddb95654901b32195c9c7avboxsyncGetVersionString(void)
45e9809aff7304721fddb95654901b32195c9c7avboxsync{
45e9809aff7304721fddb95654901b32195c9c7avboxsync    GLubyte return_value[100];
45e9809aff7304721fddb95654901b32195c9c7avboxsync    GLfloat version;
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync    GetString(GL_VERSION, return_value);
    CRASSERT(crStrlen((char *)return_value) < 100);

    version = crStrToFloat((char *) return_value);
    version = crStateComputeVersion(version);

    return version;
}

static const GLubyte *
GetExtensions(void)
{
    GLubyte return_value[10*1000];
    const GLubyte *extensions, *ext;
    GET_THREAD(thread);
    int writeback = 1;

    if (pack_spu.swap)
    {
        crPackGetStringSWAP( GL_EXTENSIONS, return_value, &writeback );
    }
    else
    {
        crPackGetString( GL_EXTENSIONS, return_value, &writeback );
    }
    packspuFlush( (void *) thread );

    while (writeback)
        crNetRecv();

    CRASSERT(crStrlen((char *)return_value) < 10*1000);

    /* OK, we got the result from the server.  Now we have to
     * intersect is with the set of extensions that Chromium understands
     * and tack on the Chromium-specific extensions.
     */
    extensions = return_value;
    ext = crStateMergeExtensions(1, &extensions);

    sprintf((char*)gpszExtensions, "%s", ext);

    return gpszExtensions;
}

#ifdef WINDOWS
static bool packspuRunningUnderWine(void)
{
    return NULL != GetModuleHandle("wined3d.dll");
}
#endif

const GLubyte * PACKSPU_APIENTRY packspu_GetString( GLenum name )
{
    GET_CONTEXT(ctx);

    switch(name)
    {
        case GL_EXTENSIONS:
            return GetExtensions();
        case GL_VERSION:
#if 0 && defined(WINDOWS)
            if (packspuRunningUnderWine())
            {
                GetString(GL_REAL_VERSION, ctx->pszRealVersion);
                return ctx->pszRealVersion;
            }
            else
#endif
            {
                float version = GetVersionString();
                sprintf((char*)ctx->glVersion, "%.1f Chromium %s", version, CR_VERSION_STRING);
                return ctx->glVersion;
            }
        case GL_VENDOR:
#ifdef WINDOWS
            if (packspuRunningUnderWine())
            {
                GetString(GL_REAL_VENDOR, ctx->pszRealVendor);
                return ctx->pszRealVendor;
            }
            else
#endif
            {
                return crStateGetString(name);
            }
        case GL_RENDERER:
#ifdef WINDOWS
            if (packspuRunningUnderWine())
            {
                GetString(GL_REAL_RENDERER, ctx->pszRealRenderer);
                return ctx->pszRealRenderer;
            }
            else
#endif
            {
                return crStateGetString(name);
            }

#ifdef CR_OPENGL_VERSION_2_0
        case GL_SHADING_LANGUAGE_VERSION:
            GetString(GL_SHADING_LANGUAGE_VERSION, gpszShadingVersion);
            return gpszShadingVersion;
#endif
#ifdef GL_CR_real_vendor_strings
        case GL_REAL_VENDOR:
            GetString(GL_REAL_VENDOR, ctx->pszRealVendor);
            return ctx->pszRealVendor;
        case GL_REAL_VERSION:
            GetString(GL_REAL_VERSION, ctx->pszRealVersion);
            return ctx->pszRealVersion;
        case GL_REAL_RENDERER:
            GetString(GL_REAL_RENDERER, ctx->pszRealRenderer);
            return ctx->pszRealRenderer;
#endif
        default:
            return crStateGetString(name);
    }
}