PDGL_API void pdglCopyTexImage2D( GLenum target, GLint level,
GLenum internalformat, GLint x, GLint y,
GLsizei width, GLsizei height, GLint border )
{
if(pglCopyTexImage2D)
{
pglCopyTexImage2D(target, level, internalformat,
x, y, width, height, border);
return;
}
pglCopyTexImage2D=pdglGetProcAddress("glCopyTexImage2D");
pglCopyTexImage2D(target, level, internalformat,
x, y, width, height, border);
}
/*
=============================================================
SHADOW RENDERING
=============================================================
*/
int R_AllocateShadowTexture( void )
{
int i = tr.num_shadows_used;
if( i >= MAX_SHADOWS )
{
ALERT( at_error, "R_AllocateShadowTexture: shadow textures limit exceeded!\n" );
return 0; // disable
}
int texture = tr.shadowTextures[i];
tr.num_shadows_used++;
if( !tr.shadowTextures[i] )
{
char txName[16];
Q_snprintf( txName, sizeof( txName ), "*shadow%i", i );
tr.shadowTextures[i] = CREATE_TEXTURE( txName, RI.viewport[2], RI.viewport[3], NULL, TF_SHADOW );
texture = tr.shadowTextures[i];
}
GL_Bind( GL_TEXTURE0, texture );
pglCopyTexImage2D( GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, RI.viewport[0], RI.viewport[1], RI.viewport[2], RI.viewport[3], 0 );
return texture;
}
/*
================
R_AllocateMirrorTexture
Allocate the screen texture and make copy
================
*/
int R_AllocateMirrorTexture( void )
{
rgbdata_t r_screen;
int i, texture;
char txName[16];
i = tr.num_mirrors_used;
if( i >= MAX_MIRRORS )
{
MsgDev( D_ERROR, "R_AllocateMirrorTexture: mirror textures limit exceeded!\n" );
return 0; // disable
}
texture = tr.mirrorTextures[i];
tr.num_mirrors_used++;
if( !texture )
{
// not initialized ?
Q_memset( &r_screen, 0, sizeof( r_screen ));
Q_snprintf( txName, sizeof( txName ), "*screen%i", i );
r_screen.width = RI.viewport[2];
r_screen.height = RI.viewport[3];
r_screen.type = PF_RGBA_32;
r_screen.size = r_screen.width * r_screen.height * 4;
r_screen.flags = IMAGE_HAS_COLOR;
r_screen.buffer = NULL; // create empty texture for now
tr.mirrorTextures[i] = GL_LoadTextureInternal( txName, &r_screen, TF_IMAGE, false );
GL_SetTextureType( tr.mirrorTextures[i], TEX_SCREENCOPY );
texture = tr.mirrorTextures[i];
}
GL_Bind( GL_TEXTURE0, texture );
pglCopyTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, RI.viewport[0], RI.viewport[1], RI.viewport[2], RI.viewport[3], 0 );
return texture;
}
