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/* Copyright (c) 2001, Stanford University
* All rights reserved
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#include "packspu.h"
#include "cr_packfunctions.h"
#include "state/cr_statefuncs.h"
#include "cr_string.h"
#include "packspu_proto.h"
#include "cr_mem.h"
#include <locale.h>
static GLubyte gpszExtensions[10000];
#ifdef CR_OPENGL_VERSION_2_0
static GLubyte gpszShadingVersion[255]="";
#endif
static void GetString(GLenum name, GLubyte *pszStr)
{
GET_THREAD(thread);
int writeback = 1;
if (pack_spu.swap)
crPackGetStringSWAP(name, pszStr, &writeback);
else
crPackGetString(name, pszStr, &writeback);
packspuFlush( (void *) thread );
CRPACKSPU_WRITEBACK_WAIT(thread, writeback);
}
static GLfloat
GetVersionString(void)
{
GLubyte return_value[100];
GLfloat version;
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 );
CRPACKSPU_WRITEBACK_WAIT(thread, writeback);
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);
#ifdef Linux
/*@todo
*That's a hack to allow running Unity, it uses libnux which is calling extension functions
*without checking if it's being supported/exported.
*glActiveStencilFaceEXT seems to be actually supported but the extension string isn't exported (for ex. on ATI HD4870),
*which leads to libglew setting function pointer to NULL and crashing Unity.
*/
sprintf((char*)gpszExtensions, "%s GL_EXT_stencil_two_side", ext);
#else
sprintf((char*)gpszExtensions, "%s", ext);
#endif
return gpszExtensions;
}
#ifdef WINDOWS
static bool packspuRunningUnderWine(void)
{
return NULL != GetModuleHandle("wined3d.dll") || NULL != GetModuleHandle("wined3dwddm.dll") || NULL != GetModuleHandle("wined3dwddm-x86.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
{
char *oldlocale;
float version;
oldlocale = setlocale(LC_NUMERIC, NULL);
oldlocale = crStrdup(oldlocale);
setlocale(LC_NUMERIC, "C");
version = GetVersionString();
sprintf((char*)ctx->glVersion, "%.1f Chromium %s", version, CR_VERSION_STRING);
if (oldlocale)
{
setlocale(LC_NUMERIC, oldlocale);
crFree(oldlocale);
}
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);
}
}
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