source/pixelformat.h

   1 #ifndef MSP_GL_PIXELFORMAT_H_
   2 #define MSP_GL_PIXELFORMAT_H_
   3
   4 #include <msp/graphics/pixelformat.h>
   5 #include <msp/strings/lexicalcast.h>
   6 #include "gl.h"
   7 #include <msp/gl/extensions/arb_texture_float.h>
   8 #include <msp/gl/extensions/ext_bgra.h>
   9 #include <msp/gl/extensions/ext_texture_srgb.h>
  10
  11 namespace Msp {
  12 namespace GL {
  13
  14 enum PixelFormat
  15 {
  16         STENCIL_INDEX   = GL_STENCIL_INDEX,
  17         DEPTH_COMPONENT = GL_DEPTH_COMPONENT,
  18         RGB             = GL_RGB,
  19         RGBA            = GL_RGBA,
  20         RGB8            = GL_RGB8,
  21         RGB16F          = GL_RGB16F,
  22         RGB32F          = GL_RGB32F,
  23         RGBA8           = GL_RGBA8,
  24         RGBA16F         = GL_RGBA16F,
  25         RGBA32F         = GL_RGBA32F,
  26         SRGB            = GL_SRGB,
  27         SRGB_ALPHA      = GL_SRGB_ALPHA,
  28         SRGB8           = GL_SRGB8,
  29         SRGB8_ALPHA8    = GL_SRGB8_ALPHA8,
  30         BGR             = GL_BGR,
  31         BGRA            = GL_BGRA,
  32         LUMINANCE       = GL_LUMINANCE,
  33         LUMINANCE8      = GL_LUMINANCE8,
  34         // TODO Remove LUMINANCE(_ALPHA) float formats once ARB_texture_rg becomes supported
  35         LUMINANCE16F    = GL_LUMINANCE16F_ARB,
  36         LUMINANCE32F    = GL_LUMINANCE32F_ARB,
  37         LUMINANCE_ALPHA    = GL_LUMINANCE_ALPHA,
  38         LUMINANCE_ALPHA8   = GL_LUMINANCE8_ALPHA8,
  39         LUMINANCE_ALPHA16F = GL_LUMINANCE_ALPHA16F_ARB,
  40         LUMINANCE_ALPHA32F = GL_LUMINANCE_ALPHA32F_ARB,
  41         SLUMINANCE         = GL_SLUMINANCE,
  42         SLUMINANCE8        = GL_SLUMINANCE8,
  43         SLUMINANCE_ALPHA   = GL_SLUMINANCE_ALPHA,
  44         SLUMINANCE8_ALPHA8 = GL_SLUMINANCE8_ALPHA8
  45 };
  46
  47 void operator>>(const LexicalConverter &, PixelFormat &);
  48
  49 PixelFormat pixelformat_from_graphics(Graphics::PixelFormat);
  50 PixelFormat storage_pixelformat_from_graphics(Graphics::PixelFormat);
  51
  52 PixelFormat get_base_pixelformat(PixelFormat);
  53 PixelFormat get_srgb_pixelformat(PixelFormat);
  54 unsigned get_component_count(PixelFormat);
  55 unsigned get_component_size(PixelFormat);
  56 unsigned get_pixel_size(PixelFormat);
  57
  58 void require_pixelformat(PixelFormat);
  59
  60 } // namespace GL
  61 } // namespace Msp
  62
  63 #endif