#include <msp/gl/extensions/arb_texture_float.h>
-#include <msp/gl/extensions/ext_bgra.h>
+#include <msp/io/print.h>
#include <msp/strings/format.h>
#include "pixelformat.h"
namespace Msp {
namespace GL {
-void operator>>(const LexicalConverter &conv, PixelFormat &fmt)
+void operator>>(const LexicalConverter &conv, PixelComponents &comp)
{
if(conv.get()=="STENCIL_INDEX")
- fmt = STENCIL_INDEX;
+ comp = STENCIL_INDEX;
else if(conv.get()=="DEPTH_COMPONENT")
- fmt = DEPTH_COMPONENT;
+ comp = DEPTH_COMPONENT;
else if(conv.get()=="RED")
- fmt = RED;
+ comp = RED;
else if(conv.get()=="RG")
- fmt = RG;
+ comp = RG;
else if(conv.get()=="RGB")
- fmt = RGB;
+ comp = RGB;
else if(conv.get()=="RGBA")
- fmt = RGBA;
+ comp = RGBA;
else if(conv.get()=="BGR")
- fmt = BGR;
+ comp = BGR;
else if(conv.get()=="BGRA")
- fmt = BGRA;
- else if(conv.get()=="SRGB")
- fmt = SRGB;
- else if(conv.get()=="SRGB_ALPHA")
- fmt = SRGB_ALPHA;
+ comp = BGRA;
else if(conv.get()=="LUMINANCE")
- fmt = LUMINANCE;
+ comp = LUMINANCE;
else if(conv.get()=="LUMINANCE_ALPHA")
- fmt = LUMINANCE_ALPHA;
- else if(conv.get()=="SLUMINANCE")
- fmt = SLUMINANCE;
- else if(conv.get()=="SLUMINANCE_ALPHA")
- fmt = SLUMINANCE_ALPHA;
+ comp = LUMINANCE_ALPHA;
else
throw lexical_error(format("conversion of '%s' to PixelFormat", conv.get()));
}
-PixelFormat pixelformat_from_graphics(Graphics::PixelFormat pf)
+void operator>>(const LexicalConverter &conv, PixelFormat &fmt)
+{
+ if(conv.get()=="R8")
+ fmt = R8;
+ else if(conv.get()=="R16F")
+ fmt = R16F;
+ else if(conv.get()=="R32F")
+ fmt = R32F;
+ else if(conv.get()=="RG8")
+ fmt = RG8;
+ else if(conv.get()=="RG16F")
+ fmt = RG16F;
+ else if(conv.get()=="RG32F")
+ fmt = RG32F;
+ else if(conv.get()=="RGB8")
+ fmt = RGB8;
+ else if(conv.get()=="RGB16F")
+ fmt = RGB16F;
+ else if(conv.get()=="RGB32F")
+ fmt = RGB32F;
+ else if(conv.get()=="RGBA8")
+ fmt = RGBA8;
+ else if(conv.get()=="RGBA16F")
+ fmt = RGBA16F;
+ else if(conv.get()=="RGBA32F")
+ fmt = RGBA32F;
+ else if(conv.get()=="SRGB8")
+ fmt = SRGB8;
+ else if(conv.get()=="SRGB8_ALPHA8")
+ fmt = SRGB8_ALPHA8;
+ else if(conv.get()=="BGR8")
+ fmt = BGR8;
+ else if(conv.get()=="BGRA8")
+ fmt = BGRA8;
+ else if(conv.get()=="LUMINANCE8")
+ fmt = LUMINANCE8;
+ else if(conv.get()=="LUMINANCE8_ALPHA8")
+ fmt = LUMINANCE8_ALPHA8;
+ else if(conv.get()=="DEPTH_COMPONENT16")
+ fmt = DEPTH_COMPONENT16;
+ else if(conv.get()=="DEPTH_COMPONENT24")
+ fmt = DEPTH_COMPONENT24;
+ else if(conv.get()=="DEPTH_COMPONENT32")
+ fmt = DEPTH_COMPONENT32;
+ else if(conv.get()=="DEPTH_COMPONENT32F")
+ fmt = DEPTH_COMPONENT32F;
+ else
+ {
+ PixelComponents comp;
+ conv >> comp;
+ fmt = make_pixelformat(comp, (comp==DEPTH_COMPONENT ? FLOAT : UNSIGNED_BYTE));
+ IO::print(IO::cerr, "Warning: deprecated conversion of '%s' to PixelFormat\n", conv.get());
+ }
+}
+
+PixelComponents pixelformat_from_graphics(Graphics::PixelFormat pf)
{
switch(pf)
{
}
}
-PixelFormat storage_pixelformat_from_graphics(Graphics::PixelFormat pf, bool srgb)
+PixelComponents storage_pixelformat_from_graphics(Graphics::PixelFormat pf)
{
- PixelFormat result;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
switch(pf)
{
case Graphics::RGBX:
case Graphics::BGR:
- case Graphics::BGRX: result = RGB; break;
- case Graphics::BGRA: result = RGBA; break;
- default: result = pixelformat_from_graphics(pf);
+ case Graphics::BGRX: return RGB;
+ case Graphics::BGRA: return RGBA;
+ default: return pixelformat_from_graphics(pf);
}
+#pragma GCC diagnostic pop
+}
- if(srgb)
- return get_srgb_pixelformat(result);
- else
- return result;
+PixelFormat pixelformat_from_image(const Graphics::Image &image)
+{
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+ PixelComponents comp = pixelformat_from_graphics(image.get_format());
+#pragma GCC diagnostic pop
+ return make_pixelformat(comp, UNSIGNED_BYTE);
+}
+
+PixelFormat make_pixelformat(PixelComponents comp, DataType type, bool srgb)
+{
+ if(srgb && type!=UNSIGNED_BYTE && comp!=RGB && comp!=RGBA && comp!=BGR && comp!=BGRA)
+ throw invalid_argument("make_pixelformat");
+
+ switch(comp)
+ {
+ case RED:
+ switch(type)
+ {
+ case UNSIGNED_BYTE: return R8;
+ case HALF_FLOAT: return R16F;
+ case FLOAT: return R32F;
+ default: throw invalid_argument("make_pixelformat");
+ }
+ case RG:
+ switch(type)
+ {
+ case UNSIGNED_BYTE: return RG8;
+ case HALF_FLOAT: return RG16F;
+ case FLOAT: return RG32F;
+ default: throw invalid_argument("make_pixelformat");
+ }
+ case RGB:
+ switch(type)
+ {
+ case UNSIGNED_BYTE: return (srgb ? SRGB8 : RGB8);
+ case HALF_FLOAT: return RGB16F;
+ case FLOAT: return RGB32F;
+ default: throw invalid_argument("make_pixelformat");
+ }
+ case RGBA:
+ switch(type)
+ {
+ case UNSIGNED_BYTE: return (srgb ? SRGB8_ALPHA8 : RGBA8);
+ case HALF_FLOAT: return RGBA16F;
+ case FLOAT: return RGBA32F;
+ default: throw invalid_argument("make_pixelformat");
+ }
+ case BGR:
+ if(type!=UNSIGNED_BYTE)
+ throw invalid_argument("make_pixelformat");
+ return (srgb ? BGR8 : SBGR8);
+ case BGRA:
+ if(type!=UNSIGNED_BYTE)
+ throw invalid_argument("make_pixelformat");
+ return (srgb ? BGRA8 : SBGR8_ALPHA8);
+ case LUMINANCE:
+ if(type!=UNSIGNED_BYTE)
+ throw invalid_argument("make_pixelformat");
+ return LUMINANCE8;
+ case LUMINANCE_ALPHA:
+ if(type!=UNSIGNED_BYTE)
+ throw invalid_argument("make_pixelformat");
+ return LUMINANCE8;
+ case STENCIL_INDEX:
+ if(type!=UNSIGNED_BYTE)
+ throw invalid_argument("make_pixelformat");
+ return STENCIL_INDEX8;
+ case DEPTH_COMPONENT:
+ switch(type)
+ {
+ case UNSIGNED_SHORT: return DEPTH_COMPONENT16;
+ case UNSIGNED_INT: return DEPTH_COMPONENT32;
+ case FLOAT: return DEPTH_COMPONENT32F;
+ default: throw invalid_argument("make_pixelformat");
+ }
+ default:
+ throw invalid_argument("make_pixelformat");
+ }
}
PixelFormat get_base_pixelformat(PixelFormat pf)
+{
+ switch(pf)
+ {
+ case SRGB8: return RGB8;
+ case SRGB8_ALPHA8: return RGBA8;
+ default: return pf;
+ }
+}
+
+PixelComponents get_components(PixelFormat pf)
{
switch(pf)
{
case RGB8:
case RGB16F:
case RGB32F:
- case SRGB:
case SRGB8: return RGB;
case RGBA8:
case RGBA16F:
case RGBA32F:
- case SRGB_ALPHA:
case SRGB8_ALPHA8: return RGBA;
- case LUMINANCE8:
- case SLUMINANCE:
- case SLUMINANCE8: return LUMINANCE;
- case LUMINANCE_ALPHA8:
- case SLUMINANCE_ALPHA:
- case SLUMINANCE8_ALPHA8: return LUMINANCE_ALPHA;
+ case BGR8:
+ case SBGR8: return BGR;
+ case BGRA8:
+ case SBGR8_ALPHA8: return BGRA;
+ case LUMINANCE8: return LUMINANCE;
+ case LUMINANCE8_ALPHA8: return LUMINANCE_ALPHA;
+ case STENCIL_INDEX8: return STENCIL_INDEX;
case DEPTH_COMPONENT16:
case DEPTH_COMPONENT24:
- case DEPTH_COMPONENT32: return DEPTH_COMPONENT;
- default: return pf;
+ case DEPTH_COMPONENT32:
+ case DEPTH_COMPONENT32F: return DEPTH_COMPONENT;
+ default: throw invalid_argument("get_components");
}
}
-PixelFormat get_sized_pixelformat(PixelFormat pf)
+PixelFormat get_default_sized_pixelformat(PixelComponents comp)
{
- switch(pf)
+ DataType type = UNSIGNED_BYTE;
+ if(comp==DEPTH_COMPONENT)
{
- case RED: return R8;
- case RG: return RG8;
- case RGB: return RGB8;
- case RGBA: return RGBA8;
- case SRGB: return SRGB8;
- case SRGB_ALPHA: return SRGB8_ALPHA8;
- case LUMINANCE: return LUMINANCE8;
- case SLUMINANCE: return SLUMINANCE8;
- case LUMINANCE_ALPHA: return LUMINANCE8_ALPHA8;
- case SLUMINANCE_ALPHA: return SLUMINANCE8_ALPHA8;
- case DEPTH_COMPONENT:
- if(get_gl_api()==OPENGL_ES2)
- return DEPTH_COMPONENT16;
+ if(get_gl_api()==OPENGL_ES2 && !ARB_depth_buffer_float)
+ type = UNSIGNED_SHORT;
else
- return DEPTH_COMPONENT32;
- default: return pf;
+ type = FLOAT;
}
+ return make_pixelformat(comp, type);
}
PixelFormat get_srgb_pixelformat(PixelFormat pf)
{
switch(pf)
{
- case RGB: return SRGB;
- case RGBA: return SRGB_ALPHA;
case RGB8: return SRGB8;
case RGBA8: return SRGB8_ALPHA8;
- case LUMINANCE: return SLUMINANCE;
- case LUMINANCE8: return SLUMINANCE8;
- case LUMINANCE_ALPHA: return SLUMINANCE_ALPHA;
- case LUMINANCE_ALPHA8: return SLUMINANCE8_ALPHA8;
default: return pf;
}
}
-unsigned get_component_count(PixelFormat pf)
+unsigned get_component_count(PixelComponents comp)
{
- switch(get_base_pixelformat(pf))
+ switch(comp)
{
- case STENCIL_INDEX:
- case DEPTH_COMPONENT:
case RED:
case LUMINANCE:
- case SLUMINANCE:
+ case DEPTH_COMPONENT:
+ case STENCIL_INDEX:
return 1;
case RG:
case LUMINANCE_ALPHA:
- case SLUMINANCE_ALPHA:
return 2;
case RGB:
case BGR:
}
}
-unsigned get_component_size(PixelFormat pf)
+DataType get_component_type(PixelFormat pf)
{
switch(pf)
{
+ case R8:
+ case RG8:
+ case RGB8:
+ case RGBA8:
+ case SRGB8:
+ case SRGB8_ALPHA8:
+ case BGR8:
+ case BGRA8:
+ case SBGR8:
+ case SBGR8_ALPHA8:
+ case LUMINANCE8:
+ case LUMINANCE8_ALPHA8:
+ return UNSIGNED_BYTE;
case R16F:
case RG16F:
case RGB16F:
case RGBA16F:
+ return HALF_FLOAT;
case DEPTH_COMPONENT16:
- return 2;
- case DEPTH_COMPONENT24:
- return 3;
+ return UNSIGNED_SHORT;
case R32F:
case RG32F:
case RGB32F:
case RGBA32F:
case DEPTH_COMPONENT32:
- return 4;
+ return UNSIGNED_INT;
+ case DEPTH_COMPONENT32F:
+ return FLOAT;
+ case DEPTH_COMPONENT24:
+ // There's no DataType value with 24-bit size
default:
- return 1;
+ throw invalid_argument("get_component_type");
}
}
unsigned get_pixel_size(PixelFormat pf)
{
- return get_component_count(pf)*get_component_size(pf);
+ return get_component_count(pf)*get_type_size(get_component_type(pf));
}
void require_pixelformat(PixelFormat pf)
{
+ /* TODO These checks are only accurate for textures. On OpenGL ES some
+ formats are allowed for render buffers earlier than textures. In particular
+ it's possible to create a 16-bit depth renderbuffer on OpenGL ES 2.0 but
+ depth textures are only available with 3.0 or the OES_depth_texture
+ extension.*/
switch(pf)
{
- case RED:
+ case RGB8:
+ case RGBA8:
+ { static Require _req(OES_required_internalformat); }
+ break;
case R8:
- case RG:
case RG8:
{ static Require _req(ARB_texture_rg); }
break;
case RGBA32F:
{ static Require _req(ARB_texture_float); }
break;
- case SRGB:
case SRGB8:
- case SRGB_ALPHA:
case SRGB8_ALPHA8:
- case SLUMINANCE:
- case SLUMINANCE8:
- case SLUMINANCE_ALPHA:
- case SLUMINANCE8_ALPHA8:
{ static Require _req(EXT_texture_sRGB); }
break;
- case BGR:
- case BGRA:
- { static Require _req(EXT_bgra); }
- break;
- case DEPTH_COMPONENT:
case DEPTH_COMPONENT16:
case DEPTH_COMPONENT24:
case DEPTH_COMPONENT32:
{ static Require _req(ARB_depth_texture); }
+ { static Require _req(OES_required_internalformat); }
break;
- default:
+ case DEPTH_COMPONENT32F:
+ { static Require _req(ARB_depth_buffer_float); }
break;
+ case STENCIL_INDEX8:
+ { static Require _req(OES_texture_stencil8); }
+ break;
+ default:
+ throw invalid_argument("require_pixelformat");
}
}
projects / libs / gl.git / blobdiff