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Adjustments to better support GLX1.3 and ATI drivers.

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This commit is contained in:
ehofman
2005-07-13 12:00:30 +00:00
parent 72267fa60b
commit 73cb6ff00d
4 changed files with 171 additions and 44 deletions
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172
simgear/screen/RenderTexture.cpp
View File

@@ -82,6 +82,18 @@ static wglDestroyPbufferARBProc wglDestroyPbufferARBPtr = 0;
/* WGL_ARB_render_texture */
static wglBindTexImageARBProc wglBindTexImageARBPtr = 0;
static wglReleaseTexImageARBProc wglReleaseTexImageARBPtr = 0;
#elif defined( __APPLE__ )
#else /* !_WIN32 */
static bool glXVersion1_3Present = false;
static glXChooseFBConfigProc glXChooseFBConfigPtr = 0;
static glXCreateGLXPbufferProc glXCreateGLXPbufferPtr = 0;
static glXGetVisualFromFBConfigProc glXGetVisualFromFBConfigPtr = 0;
static glXCreateContextWithConfigProc glXCreateContextWithConfigPtr = 0;
static glXCreateContextProc glXCreateContextPtr = 0;
static glXDestroyPbufferProc glXDestroyPbufferPtr = 0;
static glXQueryDrawableProc glXQueryDrawablePtr = 0;
static glXQueryGLXPbufferSGIXProc glXQueryGLXPbufferSGIXPtr = 0;
#endif
//---------------------------------------------------------------------------
@@ -449,14 +461,10 @@ bool RenderTexture::Initialize(int width, int height,
int screen = DefaultScreen(_pDisplay);
XVisualInfo *visInfo;
int iFormat = 0;
int iNumFormats;
int attrib = 0;
GLXFBConfigSGIX *fbConfigs;
GLXFBConfig *fbConfigs;
int nConfigs;
fbConfigs = glXChooseFBConfigSGIX(_pDisplay, screen,
fbConfigs = glXChooseFBConfigPtr(_pDisplay, screen,
&_pixelFormatAttribs[0], &nConfigs);
if (nConfigs == 0 || !fbConfigs)
@@ -467,25 +475,55 @@ bool RenderTexture::Initialize(int width, int height,
}
// Pick the first returned format that will return a pbuffer
for (int i=0;i<nConfigs;i++)
if (glXVersion1_3Present)
{
_hPBuffer = glXCreateGLXPbufferSGIX(_pDisplay, fbConfigs[i],
_iWidth, _iHeight, NULL);
if (_hPBuffer)
int pbufAttrib[] = {
GLX_PBUFFER_WIDTH, _iWidth,
GLX_PBUFFER_HEIGHT, _iHeight,
GLX_LARGEST_PBUFFER, False,
None
};
for (int i=0;i<nConfigs;i++)
{
_hGLContext = glXCreateContextWithConfigSGIX(_pDisplay,
fbConfigs[i],
GLX_RGBA_TYPE,
_bShareObjects ? context : NULL,
True);
break;
_hPBuffer = glXCreatePbuffer(_pDisplay, fbConfigs[i], pbufAttrib);
if (_hPBuffer)
{
XVisualInfo *visInfo = glXGetVisualFromFBConfig(_pDisplay, fbConfigs[i]);
_hGLContext = glXCreateContext(_pDisplay, visInfo,
_bShareObjects ? context : NULL,
True);
XFree( visInfo );
break;
}
}
}
else
{
int iFormat = 0;
int iNumFormats;
int attrib = 0;
for (int i=0;i<nConfigs;i++)
{
_hPBuffer = glXCreateGLXPbufferPtr(_pDisplay, fbConfigs[i],
_iWidth, _iHeight, NULL);
if (_hPBuffer)
{
_hGLContext = glXCreateContextWithConfigPtr(_pDisplay,
fbConfigs[i],
GLX_RGBA_TYPE,
_bShareObjects ? context : NULL,
True);
break;
}
}
}
XFree( fbConfigs );
if (!_hPBuffer)
{
fprintf(stderr,
"RenderTexture Error: glXCreateGLXPbufferSGIX() failed.\n");
"RenderTexture Error: glXCreateGLXPbufferPtr() failed.\n");
return false;
}
@@ -502,10 +540,13 @@ bool RenderTexture::Initialize(int width, int height,
}
}
glXQueryGLXPbufferSGIX(_pDisplay, _hPBuffer, GLX_WIDTH_SGIX,
(GLuint*)&_iWidth);
glXQueryGLXPbufferSGIX(_pDisplay, _hPBuffer, GLX_HEIGHT_SGIX,
(GLuint*)&_iHeight);
if (!glXVersion1_3Present)
{
glXQueryGLXPbufferSGIXPtr(_pDisplay, _hPBuffer, GLX_WIDTH_SGIX,
(GLuint*)&_iWidth);
glXQueryGLXPbufferSGIXPtr(_pDisplay, _hPBuffer, GLX_HEIGHT_SGIX,
(GLuint*)&_iHeight);
}
_bInitialized = true;
@@ -556,6 +597,12 @@ bool RenderTexture::Initialize(int width, int height,
{
return false;
}
if (glXVersion1_3Present)
{
GLXDrawable draw = glXGetCurrentDrawable();
glXQueryDrawablePtr(_pDisplay, draw, GLX_WIDTH, (unsigned int*)&_iWidth);
glXQueryDrawablePtr(_pDisplay, draw, GLX_HEIGHT, (unsigned int*)&_iHeight);
}
#endif
return result;
@@ -579,13 +626,13 @@ bool RenderTexture::_Invalidate()
_iNumStencilBits = 0;
if (_bIsTexture)
glDeleteTextures(1, (const GLuint*)&_iTextureID);
glDeleteTextures(1, &_iTextureID);
if (_bIsDepthTexture)
{
// [Redge]
if (!_bHasARBDepthTexture) delete[] _pPoorDepthTexture;
// [/Redge]
glDeleteTextures(1, (const GLuint*)&_iDepthTextureID);
glDeleteTextures(1, &_iDepthTextureID);
}
#ifdef _WIN32
@@ -608,7 +655,7 @@ bool RenderTexture::_Invalidate()
if(glXGetCurrentContext() == _hGLContext)
// XXX I don't know if this is right at all
glXMakeCurrent(_pDisplay, _hPBuffer, 0);
glXDestroyGLXPbufferSGIX(_pDisplay, _hPBuffer);
glXDestroyPbufferPtr(_pDisplay, _hPBuffer);
_hPBuffer = 0;
return true;
}
@@ -726,9 +773,9 @@ bool RenderTexture::Resize(int iWidth, int iHeight)
// Do same basic work as _Invalidate, but don't reset all our flags
if (_bIsTexture)
glDeleteTextures(1, (const GLuint*)&_iTextureID);
glDeleteTextures(1, &_iTextureID);
if (_bIsDepthTexture)
glDeleteTextures(1, (const GLuint*)&_iDepthTextureID);
glDeleteTextures(1, &_iDepthTextureID);
#ifdef _WIN32
if ( _hPBuffer )
{
@@ -749,7 +796,7 @@ bool RenderTexture::Resize(int iWidth, int iHeight)
if(glXGetCurrentContext() == _hGLContext)
// XXX I don't know if this is right at all
glXMakeCurrent(_pDisplay, _hPBuffer, 0);
glXDestroyGLXPbufferSGIX(_pDisplay, _hPBuffer);
glXDestroyPbufferPtr(_pDisplay, _hPBuffer);
_hPBuffer = 0;
}
#endif
@@ -1255,9 +1302,9 @@ void RenderTexture::_ParseModeString(const char *modeString,
pfAttribs.push_back(AGL_SAMPLES_ARB);
pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
#else
pfAttribs.push_back(GL_SAMPLE_BUFFERS_ARB);
pfAttribs.push_back(GLX_SAMPLE_BUFFERS_ARB);
pfAttribs.push_back(1);
pfAttribs.push_back(GL_SAMPLES_ARB);
pfAttribs.push_back(GLX_SAMPLES_ARB);
pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
#endif
continue;
@@ -1273,7 +1320,7 @@ void RenderTexture::_ParseModeString(const char *modeString,
pfAttribs.push_back(AGL_DOUBLEBUFFER);
pfAttribs.push_back(True);
#else
pfAttribs.push_back(GL_DOUBLEBUFFER);
pfAttribs.push_back(GLX_DOUBLEBUFFER);
pfAttribs.push_back(True);
#endif
continue;
@@ -1286,7 +1333,7 @@ void RenderTexture::_ParseModeString(const char *modeString,
#elif defined( __APPLE__ )
pfAttribs.push_back(AGL_AUX_BUFFERS);
#else
pfAttribs.push_back(GL_AUX_BUFFERS);
pfAttribs.push_back(GLX_AUX_BUFFERS);
#endif
if (kv.second == "")
pfAttribs.push_back(0);
@@ -1485,7 +1532,7 @@ void RenderTexture::_ParseModeString(const char *modeString,
}
#elif defined( __APPLE__ )
#else
if (GL_NV_float_buffer)
if (GLX_NV_float_buffer)
{
pfAttribs.push_back(GLX_FLOAT_COMPONENTS_NV);
pfAttribs.push_back(1);
@@ -1773,29 +1820,72 @@ bool RenderTexture::_VerifyExtensions()
}
#elif defined( __APPLE__ )
#else
if (!GLX_SGIX_pbuffer)
{
PrintExtensionError("GL_SGIX_pbuffer");
int minor, major;
_pDisplay = glXGetCurrentDisplay();
if (!glXQueryVersion(_pDisplay, &major, &minor))
return false;
glXVersion1_3Present = major >= 1 && minor >= 3;
if (glXVersion1_3Present)
{
glXChooseFBConfigPtr = (glXChooseFBConfigProc)SGLookupFunction("glXChooseFBConfig");
glXCreateGLXPbufferPtr = (glXCreateGLXPbufferProc)SGLookupFunction("glXCreatePbuffer");
glXGetVisualFromFBConfigPtr = (glXGetVisualFromFBConfigProc)SGLookupFunction("glXGetVisualFromFBConfig");
glXCreateContextPtr = (glXCreateContextProc)SGLookupFunction("glXCreateContext");
glXDestroyPbufferPtr = (glXDestroyPbufferProc)SGLookupFunction("glXDestroyPbuffer");
glXQueryDrawablePtr = (glXQueryDrawableProc)SGLookupFunction("glXQueryDrawable");
if (!glXChooseFBConfigPtr ||
!glXCreateGLXPbufferPtr ||
!glXGetVisualFromFBConfigPtr ||
!glXCreateContextPtr ||
!glXDestroyPbufferPtr ||
!glXQueryDrawablePtr)
return false;
}
if (!GLX_SGIX_fbconfig)
else
{
PrintExtensionError("GL_SGIX_fbconfig");
return false;
glXChooseFBConfigPtr = (glXChooseFBConfigProc)SGLookupFunction("glXChooseFBConfigSGIX");
glXCreateGLXPbufferPtr = (glXCreateGLXPbufferProc)SGLookupFunction("glXCreateGLXPbufferSGIX");
glXGetVisualFromFBConfigPtr = (glXGetVisualFromFBConfigProc)SGLookupFunction("glXGetVisualFromFBConfigSGIX");
glXCreateContextWithConfigPtr = (glXCreateContextWithConfigProc)SGLookupFunction("glXCreateContextWithConfigSGIX");
glXDestroyPbufferPtr = (glXDestroyPbufferProc)SGLookupFunction("glXDestroyGLXPbufferSGIX");
glXQueryGLXPbufferSGIXPtr = (glXQueryGLXPbufferSGIXProc)SGLookupFunction("glXQueryGLXPbufferSGIX");
if (!glXChooseFBConfigPtr ||
!glXCreateGLXPbufferPtr ||
!glXGetVisualFromFBConfigPtr ||
!glXCreateContextWithConfigPtr ||
!glXDestroyPbufferPtr ||
!glXQueryGLXPbufferSGIXPtr)
return false;
}
// if (!GLX_SGIX_pbuffer)
// {
// PrintExtensionError("GL_SGIX_pbuffer");
// return false;
// }
// if (!GLX_SGIX_fbconfig)
// {
// PrintExtensionError("GLX_SGIX_fbconfig");
// return false;
// }
if (_bIsDepthTexture && !GL_ARB_depth_texture)
{
PrintExtensionError("GL_ARB_depth_texture");
return false;
}
if (_bFloat && _bIsTexture && !GL_NV_float_buffer)
if (_bFloat && _bIsTexture && !GLX_NV_float_buffer)
{
PrintExtensionError("GL_NV_float_buffer");
PrintExtensionError("GLX_NV_float_buffer");
return false;
}
if (_eUpdateMode == RT_RENDER_TO_TEXTURE)
{
PrintExtensionError("Some GLX render texture extension: FIXME!");
PrintExtensionError("Some GLX render texture extension: Please implement me!");
return false;
}
#endif

4
simgear/screen/RenderTexture.h
View File

@@ -359,8 +359,8 @@ protected: // data
// Texture stuff
GLenum _iTextureTarget;
unsigned int _iTextureID;
unsigned int _iDepthTextureID;
GLuint _iTextureID;
GLuint _iDepthTextureID;
unsigned short* _pPoorDepthTexture; // [Redge]

3
simgear/screen/extensions.cxx
View File

@@ -110,6 +110,9 @@ void *SGGetGLProcAddress(const char *func) {
if (libHandle == NULL)
libHandle = dlopen("libGL.so", RTLD_LAZY);
if (libHandle == NULL)
libHandle = dlopen("libGL.so.1", RTLD_LAZY);
if (libHandle != NULL) {
fptr = dlsym(libHandle, func);

36
simgear/screen/extensions.hxx
View File

@@ -261,9 +261,10 @@ typedef void (APIENTRY * glClientActiveTextureProc)(GLenum texture);
#define GL_SAMPLE_COVERAGE_VALUE_ARB 0x80AA
#define GL_SAMPLE_COVERAGE_INVERT_ARB 0x80AB
#define GL_MULTISAMPLE_BIT_ARB 0x20000000
#define GL_DOUBLEBUFFER 0x0C32
#define GL_AUX_BUFFERS 0x0C00
#define WGL_SAMPLE_BUFFERS_ARB 0x2041
#define WGL_SAMPLES_ARB 0x2042
#endif
#ifndef GL_SGIS_generate_mipmap
@@ -409,6 +410,39 @@ typedef BOOL (APIENTRY * wglReleaseTexImageARBProc) (HPBUFFERARB hPbuffer, int i
typedef BOOL (APIENTRY * wglSetPbufferAttribARBProc) (HPBUFFERARB hPbuffer, const int *piAttribList);
#endif
#elif !defined(__APPLE__) /* !WIN32 */
/* GLX pcific OpenGL extenstions */
#include <GL/glx.h>
#ifndef GLX_ARB_multisample
#define GLX_ARB_multisample1
#define GLX_SAMPLE_BUFFERS_ARB 100001
#define GLX_SAMPLES_ARB 100000
#endif
#ifndef GLX_SGIX_pbuffer
#define GLX_SGIX_pbuffer 1
#define GLX_DOUBLEBUFFER 5
#define GLX_AUX_BUFFERS 0x00000010
#endif
#ifndef GLXPbuffer
#define GLXPbuffer GLXPbufferSGIX
#endif
#ifndef GLXFBConfig
#define GLXFBConfig GLXFBConfigSGIX
#endif
typedef GLXFBConfig *(*glXChooseFBConfigProc) (Display *dpy, int screen, int *attribList, int *nitems);
typedef GLXPbuffer (*glXCreateGLXPbufferProc) (Display *dpy, GLXFBConfig config, unsigned int width, unsigned int height, int *attrib_list);
typedef GLXPbuffer (*glXCreatePbufferProc) (Display *dpy, GLXFBConfig config, int *attrib_list);
typedef XVisualInfo *(*glXGetVisualFromFBConfigProc) (Display *dpy, GLXFBConfig config);
typedef GLXContext (*glXCreateContextWithConfigProc) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
typedef GLXContext (*glXCreateContextProc) (Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
typedef void (*glXDestroyPbufferProc) (Display *dpy, GLXPbuffer pbuf);
typedef int (*glXQueryGLXPbufferSGIXProc) (Display *, GLXPbufferSGIX, int, unsigned int *);
typedef void (*glXQueryDrawableProc) (Display *, GLXDrawable, int, unsigned int *);
#endif /* WIN32 */