X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fpixelformat.cpp;h=0b13f3ccefa7fe53cf2e5868b157a7d0c0e5588b;hp=547a6a6970b4d69566b1a5552ca93a6a39c3fb47;hb=HEAD;hpb=a40fc85277dba5c34402a0e703d038efd30cc57b

diff --git a/source/pixelformat.cpp b/source/pixelformat.cpp
deleted file mode 100644
index 547a6a69..00000000
--- a/source/pixelformat.cpp
+++ /dev/null
@@ -1,316 +0,0 @@
-#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()=="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()=="RG")
-		fmt = RG;
-	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()=="SRGB")
-		fmt = SRGB;
-	else if(conv.get()=="SRGB_ALPHA")
-		fmt = SRGB_ALPHA;
-	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::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, bool srgb)
-{
-	PixelFormat result;
-	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);
-	}
-
-	if(srgb)
-		return get_srgb_pixelformat(result);
-	else
-		return result;
-}
-
-PixelFormat get_base_pixelformat(PixelFormat pf)
-{
-	PixelFormat unsized = get_unsized_pixelformat(pf);
-	switch(unsized)
-	{
-	case SRGB: return RGB;
-	case SRGB_ALPHA: return RGBA;
-	default: return unsized;
-	}
-}
-
-PixelFormat get_unsized_pixelformat(PixelFormat pf)
-{
-	switch(pf)
-	{
-	case R8:
-	case R16F:
-	case R32F: return RED;
-	case RG8:
-	case RG16F:
-	case RG32F: return RG;
-	case RGB8:
-	case RGB16F:
-	case RGB32F: return RGB;
-	case SRGB8: return SRGB;
-	case RGBA8:
-	case RGBA16F:
-	case RGBA32F: return RGBA;
-	case SRGB8_ALPHA8: return SRGB_ALPHA;
-	case LUMINANCE8: return LUMINANCE;
-	case LUMINANCE8_ALPHA8: return LUMINANCE_ALPHA;
-	case DEPTH_COMPONENT16:
-	case DEPTH_COMPONENT24:
-	case DEPTH_COMPONENT32:
-	case DEPTH_COMPONENT32F: return DEPTH_COMPONENT;
-	default: return pf;
-	}
-}
-
-PixelFormat get_sized_pixelformat(PixelFormat pf, unsigned size)
-{
-	if(!size || size>4)
-		throw invalid_argument("get_sized_pixelformat");
-
-	pf = get_unsized_pixelformat(pf);
-
-	switch(size)
-	{
-	case 1:
-		switch(pf)
-		{
-		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 LUMINANCE_ALPHA: return LUMINANCE8_ALPHA8;
-		default: throw invalid_argument("get_sized_pixelformat");
-		}
-	case 2:
-		switch(pf)
-		{
-		case RED: return R16F;
-		case RG: return RG16F;
-		case RGB: return RGB16F;
-		case RGBA: return RGBA16F;
-		case DEPTH_COMPONENT: return DEPTH_COMPONENT16;
-		default: throw invalid_argument("get_sized_pixelformat");
-		}
-	case 3:
-		if(pf==DEPTH_COMPONENT)
-			return DEPTH_COMPONENT24;
-		else
-			throw invalid_argument("get_sized_pixelformat");
-	case 4:
-		switch(pf)
-		{
-		case RED: return R32F;
-		case RG: return RG32F;
-		case RGB: return RGB32F;
-		case RGBA: return RGBA32F;
-		case DEPTH_COMPONENT: return ARB_depth_buffer_float ? DEPTH_COMPONENT32F : DEPTH_COMPONENT32;
-		default: throw invalid_argument("get_sized_pixelformat");
-		}
-	default:
-		throw invalid_argument("get_sized_pixelformat");
-	}
-}
-
-PixelFormat get_default_sized_pixelformat(PixelFormat pf)
-{
-	pf = get_unsized_pixelformat(pf);
-	unsigned size = 1;
-	if(pf==DEPTH_COMPONENT)
-	{
-		if(get_gl_api()==OPENGL_ES2 && !ARB_depth_buffer_float)
-			size = 2;
-		else
-			size = 4;
-	}
-	return get_sized_pixelformat(pf, size);
-}
-
-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;
-	default: return pf;
-	}
-}
-
-unsigned get_component_count(PixelFormat pf)
-{
-	switch(get_base_pixelformat(pf))
-	{
-	case STENCIL_INDEX:
-	case DEPTH_COMPONENT:
-	case RED:
-	case LUMINANCE:
-		return 1;
-	case RG:
-	case LUMINANCE_ALPHA:
-		return 2;
-	case RGB:
-	case BGR:
-		return 3;
-	case RGBA:
-	case BGRA:
-		return 4;
-	default:
-		throw invalid_argument("get_component_count");
-	}
-}
-
-unsigned get_component_size(PixelFormat pf)
-{
-	switch(pf)
-	{
-	case R8:
-	case RG8:
-	case RGB8:
-	case RGBA8:
-	case SRGB8:
-	case SRGB8_ALPHA8:
-	case LUMINANCE8:
-	case LUMINANCE8_ALPHA8:
-		return 1;
-	case R16F:
-	case RG16F:
-	case RGB16F:
-	case RGBA16F:
-	case DEPTH_COMPONENT16:
-		return 2;
-	case DEPTH_COMPONENT24:
-		return 3;
-	case R32F:
-	case RG32F:
-	case RGB32F:
-	case RGBA32F:
-	case DEPTH_COMPONENT32:
-	case DEPTH_COMPONENT32F:
-		return 4;
-	default:
-		return 0;
-	}
-}
-
-unsigned get_pixel_size(PixelFormat pf)
-{
-	return get_component_count(pf)*max(get_component_size(pf), 1U);
-}
-
-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 RGB8:
-	case RGBA8:
-		{ static Require _req(OES_required_internalformat); }
-		break;
-	case RED:
-	case R8:
-	case RG:
-	case RG8:
-		{ static Require _req(ARB_texture_rg); }
-		break;
-	case R16F:
-	case R32F:
-	case RG16F:
-	case RG32F:
-		{ static Require _req(ARB_texture_rg); }
-		{ static Require _req(ARB_texture_float); }
-		break;
-	case RGB16F:
-	case RGB32F:
-	case RGBA16F:
-	case RGBA32F:
-		{ static Require _req(ARB_texture_float); }
-		break;
-	case SRGB:
-	case SRGB8:
-	case SRGB_ALPHA:
-	case SRGB8_ALPHA8:
-		{ static Require _req(EXT_texture_sRGB); }
-		break;
-	case BGR:
-	case BGRA:
-		{ static Require _req(EXT_bgra); }
-		break;
-	case DEPTH_COMPONENT:
-		{ static Require _req(ARB_depth_texture); }
-		break;
-	case DEPTH_COMPONENT16:
-	case DEPTH_COMPONENT24:
-	case DEPTH_COMPONENT32:
-		{ static Require _req(ARB_depth_texture); }
-		{ static Require _req(OES_required_internalformat); }
-		break;
-	case DEPTH_COMPONENT32F:
-		{ static Require _req(ARB_depth_buffer_float); }
-		break;
-	case STENCIL_INDEX:
-		{ static Require _req(OES_texture_stencil8); }
-		break;
-	default:
-		break;
-	}
-}
-
-} // namespace GL
-} // namespace Msp