-#include <msp/gl/extensions/arb_texture_float.h>
-#include <msp/gl/extensions/ext_bgra.h>
-#include <msp/strings/format.h>
-#include "pixelformat.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-void operator>>(const LexicalConverter &conv, PixelFormat &fmt)
-{
- if(conv.get()=="COLOR_INDEX")
- fmt = COLOR_INDEX;
- else if(conv.get()=="STENCIL_INDEX")
- fmt = STENCIL_INDEX;
- else if(conv.get()=="DEPTH_COMPONENT")
- fmt = DEPTH_COMPONENT;
- else if(conv.get()=="RED")
- fmt = RED;
- else if(conv.get()=="GREEN")
- fmt = GREEN;
- else if(conv.get()=="BLUE")
- fmt = BLUE;
- else if(conv.get()=="ALPHA")
- fmt = ALPHA;
- else if(conv.get()=="RGB")
- fmt = RGB;
- else if(conv.get()=="RGBA")
- fmt = RGBA;
- else if(conv.get()=="BGR")
- fmt = BGR;
- else if(conv.get()=="BGRA")
- fmt = BGRA;
- else if(conv.get()=="LUMINANCE")
- fmt = LUMINANCE;
- else if(conv.get()=="LUMINANCE_ALPHA")
- fmt = LUMINANCE_ALPHA;
- else
- throw lexical_error(format("conversion of '%s' to PixelFormat", conv.get()));
-}
-
-PixelFormat pixelformat_from_graphics(Graphics::PixelFormat pf)
-{
- switch(pf)
- {
- case Graphics::COLOR_INDEX: return COLOR_INDEX;
- case Graphics::LUMINANCE: return LUMINANCE;
- case Graphics::LUMINANCE_ALPHA: return LUMINANCE_ALPHA;
- case Graphics::RGB: return RGB;
- case Graphics::RGBX:
- case Graphics::RGBA: return RGBA;
- case Graphics::BGR: return BGR;
- case Graphics::BGRX:
- case Graphics::BGRA: return BGRA;
- default: throw invalid_argument("pixelformat_from_graphics");
- }
-}
-
-PixelFormat storage_pixelformat_from_graphics(Graphics::PixelFormat pf)
-{
- switch(pf)
- {
- case Graphics::RGBX:
- case Graphics::BGR:
- case Graphics::BGRX: return RGB;
- case Graphics::BGRA: return RGBA;
- default: return pixelformat_from_graphics(pf);
- }
-}
-
-PixelFormat get_base_pixelformat(PixelFormat pf)
-{
- switch(pf)
- {
- case RGB8:
- case RGB16F:
- case RGB32F: return RGB;
- case RGBA8:
- case RGBA16F:
- case RGBA32F: return RGBA;
- case LUMINANCE8:
- case LUMINANCE16F:
- case LUMINANCE32F: return LUMINANCE;
- case LUMINANCE_ALPHA8:
- case LUMINANCE_ALPHA16F:
- case LUMINANCE_ALPHA32F: return LUMINANCE_ALPHA;
- default: return pf;
- }
-}
-
-unsigned get_component_count(PixelFormat pf)
-{
- switch(get_base_pixelformat(pf))
- {
- case COLOR_INDEX:
- case STENCIL_INDEX:
- case DEPTH_COMPONENT:
- case RED:
- case GREEN:
- case BLUE:
- case LUMINANCE:
- return 1;
- case LUMINANCE_ALPHA:
- return 2;
- case RGB:
- case BGR:
- return 3;
- case RGBA:
- case BGRA:
- return 4;
- default:
- throw invalid_argument("get_pixelformat_component_count");
- }
-}
-
-void require_pixelformat(PixelFormat pf)
-{
- switch(pf)
- {
- case RGB16F:
- case RGB32F:
- case RGBA16F:
- case RGBA32F:
- case LUMINANCE16F:
- case LUMINANCE32F:
- case LUMINANCE_ALPHA16F:
- case LUMINANCE_ALPHA32F:
- { static Require _req(ARB_texture_float); }
- break;
- case BGR:
- case BGRA:
- { static Require _req(EXT_bgra); }
- break;
- default:
- break;
- }
-}
-
-} // namespace GL
-} // namespace Msp