void VFrame::to_ram()
{
#ifdef HAVE_GL
switch(opengl_state)
{
// Only pbuffer is supported since this is only called after the
// overlay operation onto the pbuffer.
case VFrame::SCREEN:
if(pbuffer)
{
enable_opengl();
printf("VFrame::to_ram %d %d\n", get_w(), get_h());
glReadPixels(0,
0,
get_w(),
get_h(),
GL_RGB,
GL_UNSIGNED_BYTE,
get_rows()[0]);
flip_vert();
}
opengl_state = VFrame::RAM;
return;
}
#endif
}
// LoadOpenGL
// Attempts to load the OpenGL driver. If successful, call DescribePixelFormat
// routine in driver.
//
// Synopsis:
// BOOL LoadOpenGL(
// PPDEV ppdev)
static
BOOL LoadOpenGL (PPDEV ppdev)
{
return 0; // !!! Disable for now in Kernel Mode
#if 0
ENABLE_OPENGL enable_opengl;
char *file_name = "tgaglsrv.dll";
char lpszValue[256];
DWORD cchValue = 256;
if (cchValue = GetEnvironmentVariable("TGAGLSRVNAME", lpszValue, cchValue ))
file_name = lpszValue;
ppdev->hOpenGLDll = LoadLibrary (file_name);
if (! ppdev->hOpenGLDll)
{
DWORD lastError = EngGetLastError();
DISPDBG ((1, "TGA!load_extension - Error loading OpenGL Driver as %s - %d\n",
file_name, lastError));
return 0;
}
// Find the entry point DrvEnableEscape
enable_opengl = (ENABLE_OPENGL)GetProcAddress (ppdev->hOpenGLDll,
"DrvEnableEscape");
if (! enable_opengl)
{
DISPDBG ((0, "TGA!load_extension - Error getting address of DrvEnableEscape in OpenGL Driver %s - %d\n",
file_name, EngGetLastError()));
FreeLibrary (ppdev->hOpenGLDll);
ppdev->hOpenGLDll = NULL;
return 0;
}
// Call the OpenGL driver initialization routine
if (! enable_opengl (DDI_DRIVER_VERSION, (DHPDEV)ppdev))
{
DISPDBG ((0, "TGA!load_extension - Failure returned by DrvEnableEscape in library %s\n",
file_name));
FreeLibrary (ppdev->hOpenGLDll);
ppdev->hOpenGLDll = NULL;
return 0;
}
// We're loaded and ready to go
return 1;
#endif
}
void VFrame::to_texture()
{
#ifdef HAVE_GL
// Must be here so user can create textures without copying data by setting
// opengl_state to TEXTURE.
BC_Texture::new_texture(&texture,
get_w(),
get_h(),
get_color_model());
// Determine what to do based on state
switch(opengl_state)
{
case VFrame::TEXTURE:
return;
case VFrame::SCREEN:
if((get_w() % 4) || (get_h() % 4))
{
printf("VFrame::to_texture w=%d h=%d\n", get_w(), get_h());
return;
}
if(pbuffer)
{
enable_opengl();
screen_to_texture();
}
opengl_state = VFrame::TEXTURE;
return;
}
//printf("VFrame::to_texture %d\n", texture_id);
switch(color_model)
{
case BC_RGB888:
case BC_YUV888:
glTexSubImage2D(GL_TEXTURE_2D,
0,
0,
0,
get_w(),
get_h(),
GL_RGB,
GL_UNSIGNED_BYTE,
get_rows()[0]);
break;
case BC_RGBA8888:
case BC_YUVA8888:
glTexSubImage2D(GL_TEXTURE_2D,
0,
0,
0,
get_w(),
get_h(),
GL_RGBA,
GL_UNSIGNED_BYTE,
get_rows()[0]);
break;
case BC_RGB_FLOAT:
glTexSubImage2D(GL_TEXTURE_2D,
0,
0,
0,
get_w(),
get_h(),
GL_RGB,
GL_FLOAT,
get_rows()[0]);
break;
case BC_RGBA_FLOAT:
glTexSubImage2D(GL_TEXTURE_2D,
0,
0,
0,
get_w(),
get_h(),
GL_RGBA,
GL_FLOAT,
get_rows()[0]);
break;
default:
fprintf(stderr,
"VFrame::to_texture: unsupported color model %d.\n",
color_model);
break;
}
opengl_state = VFrame::TEXTURE;
#endif
}
