source/pixelformat.h

   1 #ifndef MSP_GL_PIXELFORMAT_H_
   2 #define MSP_GL_PIXELFORMAT_H_
   3
   4 #include <msp/core/attributes.h>
   5 #include <msp/graphics/image.h>
   6 #include <msp/strings/lexicalcast.h>
   7 #include "gl.h"
   8 #include <msp/gl/extensions/arb_depth_buffer_float.h>
   9 #include <msp/gl/extensions/arb_depth_texture.h>
  10 #include <msp/gl/extensions/arb_texture_float.h>
  11 #include <msp/gl/extensions/arb_texture_rg.h>
  12 #include <msp/gl/extensions/ext_bgra.h>
  13 #include <msp/gl/extensions/ext_texture_srgb.h>
  14 #include <msp/gl/extensions/oes_required_internalformat.h>
  15 #include <msp/gl/extensions/oes_texture_stencil8.h>
  16 #include <msp/gl/extensions/msp_luminance_formats.h>
  17 #include "datatype.h"
  18
  19 namespace Msp {
  20 namespace GL {
  21
  22 enum PixelComponents
  23 {
  24         STENCIL_INDEX   = GL_STENCIL_INDEX,
  25         DEPTH_COMPONENT = GL_DEPTH_COMPONENT,
  26         RED             = GL_RED,
  27         RG              = GL_RG,
  28         RGB             = GL_RGB,
  29         RGBA            = GL_RGBA,
  30         BGR             = GL_BGR,
  31         BGRA            = GL_BGRA,
  32         LUMINANCE       = GL_LUMINANCE,
  33         LUMINANCE_ALPHA = GL_LUMINANCE_ALPHA
  34 };
  35
  36 enum PixelFormat
  37 {
  38         R8              = GL_R8,
  39         R16F            = GL_R16F,
  40         R32F            = GL_R32F,
  41         RG8             = GL_RG8,
  42         RG16F           = GL_RG16F,
  43         RG32F           = GL_RG32F,
  44         RGB8            = GL_RGB8,
  45         RGB16F          = GL_RGB16F,
  46         RGB32F          = GL_RGB32F,
  47         RGBA8           = GL_RGBA8,
  48         RGBA16F         = GL_RGBA16F,
  49         RGBA32F         = GL_RGBA32F,
  50         SRGB8           = GL_SRGB8,
  51         SRGB8_ALPHA8    = GL_SRGB8_ALPHA8,
  52         LUMINANCE8      = GL_LUMINANCE8,
  53         LUMINANCE8_ALPHA8 = GL_LUMINANCE8_ALPHA8,
  54         DEPTH_COMPONENT16 = GL_DEPTH_COMPONENT16,
  55         DEPTH_COMPONENT24 = GL_DEPTH_COMPONENT24,
  56         DEPTH_COMPONENT32 = GL_DEPTH_COMPONENT32,
  57         DEPTH_COMPONENT32F = GL_DEPTH_COMPONENT32F,
  58         STENCIL_INDEX8 = GL_STENCIL_INDEX8
  59 };
  60
  61 void operator>>(const LexicalConverter &, PixelComponents &);
  62 void operator>>(const LexicalConverter &, PixelFormat &);
  63
  64 DEPRECATED PixelComponents pixelformat_from_graphics(Graphics::PixelFormat);
  65 DEPRECATED PixelComponents storage_pixelformat_from_graphics(Graphics::PixelFormat, bool);
  66 PixelFormat pixelformat_from_image(const Graphics::Image &);
  67
  68 PixelFormat make_pixelformat(PixelComponents, DataType, bool = false);
  69 DEPRECATED PixelFormat get_base_pixelformat(PixelFormat);
  70 PixelComponents get_components(PixelFormat);
  71 DEPRECATED PixelFormat get_default_sized_pixelformat(PixelComponents);
  72 DEPRECATED PixelFormat get_srgb_pixelformat(PixelFormat);
  73
  74 unsigned get_component_count(PixelComponents);
  75 inline unsigned get_component_count(PixelFormat f)
  76 { return get_component_count(get_components(f)); }
  77
  78 DataType get_component_type(PixelFormat);
  79 inline unsigned get_component_size(PixelFormat f)
  80 { return get_type_size(get_component_type(f)); }
  81
  82 unsigned get_pixel_size(PixelFormat);
  83
  84 void require_pixelformat(PixelFormat);
  85
  86 DEPRECATED inline PixelFormat get_sized_pixelformat(PixelComponents c, unsigned s = 1)
  87 { return make_pixelformat(c, (s==2 ? HALF_FLOAT : s==4 ? FLOAT : UNSIGNED_BYTE)); }
  88
  89 DEPRECATED inline PixelComponents get_unsized_pixelformat(PixelFormat f)
  90 { return get_components(f); }
  91
  92 } // namespace GL
  93 } // namespace Msp
  94
  95 #endif