X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpixelformat.cpp;h=3fdf6942c63cc606c04babdf54316330878ec1f9;hb=194f960f91041ebee44e2745627d5e480e893d82;hp=b8180b2fb75e559477c0388eddc53509f35263ba;hpb=e37851b98dde5082ee92570354746f2f92e21940;p=libs%2Fgl.git

diff --git a/source/pixelformat.cpp b/source/pixelformat.cpp
index b8180b2f..3fdf6942 100644
--- a/source/pixelformat.cpp
+++ b/source/pixelformat.cpp
@@ -10,20 +10,10 @@ namespace GL {
 
 void operator>>(const LexicalConverter &conv, PixelFormat &fmt)
 {
-	if(conv.get()=="COLOR_INDEX")
-		fmt = COLOR_INDEX;
-	else if(conv.get()=="STENCIL_INDEX")
+	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")
@@ -52,7 +42,6 @@ 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;
@@ -65,16 +54,22 @@ PixelFormat pixelformat_from_graphics(Graphics::PixelFormat pf)
 	}
 }
 
-PixelFormat storage_pixelformat_from_graphics(Graphics::PixelFormat pf)
+PixelFormat storage_pixelformat_from_graphics(Graphics::PixelFormat pf, bool srgb)
 {
+	PixelFormat result;
 	switch(pf)
 	{
 	case Graphics::RGBX:
 	case Graphics::BGR:
-	case Graphics::BGRX: return RGB;
-	case Graphics::BGRA: return RGBA;
-	default: return pixelformat_from_graphics(pf);
+	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)
@@ -101,6 +96,30 @@ PixelFormat get_base_pixelformat(PixelFormat pf)
 	case LUMINANCE_ALPHA32F:
 	case SLUMINANCE_ALPHA:
 	case SLUMINANCE8_ALPHA8: return LUMINANCE_ALPHA;
+	case DEPTH_COMPONENT16:
+	case DEPTH_COMPONENT24:
+	case DEPTH_COMPONENT32: return DEPTH_COMPONENT;
+	default: return pf;
+	}
+}
+
+PixelFormat get_sized_pixelformat(PixelFormat pf)
+{
+	switch(pf)
+	{
+	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;
+		else
+			return DEPTH_COMPONENT32;
 	default: return pf;
 	}
 }
@@ -125,12 +144,8 @@ 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:
 	case SLUMINANCE:
 		return 1;
@@ -144,10 +159,38 @@ unsigned get_component_count(PixelFormat pf)
 	case BGRA:
 		return 4;
 	default:
-		throw invalid_argument("get_pixelformat_component_count");
+		throw invalid_argument("get_component_count");
+	}
+}
+
+unsigned get_component_size(PixelFormat pf)
+{
+	switch(pf)
+	{
+	case RGB16F:
+	case RGBA16F:
+	case LUMINANCE16F:
+	case LUMINANCE_ALPHA16F:
+	case DEPTH_COMPONENT16:
+		return 2;
+	case DEPTH_COMPONENT24:
+		return 3;
+	case RGB32F:
+	case RGBA32F:
+	case LUMINANCE32F:
+	case LUMINANCE_ALPHA32F:
+	case DEPTH_COMPONENT32:
+		return 4;
+	default:
+		return 1;
 	}
 }
 
+unsigned get_pixel_size(PixelFormat pf)
+{
+	return get_component_count(pf)*get_component_size(pf);
+}
+
 void require_pixelformat(PixelFormat pf)
 {
 	switch(pf)
@@ -176,6 +219,12 @@ void require_pixelformat(PixelFormat pf)
 	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); }
+		break;
 	default:
 		break;
 	}