Support linear to sRGB conversion when loading materials and textures

[libs/gl.git] / source / texture2d.cpp

diff --git a/source/texture2d.cpp b/source/texture2d.cpp
index f4af7e7259bef9ccaf3319be8c56df51cd9881a0..96da77d1b9aba0400805461f0706c84d017ab60e 100644 (file)
--- a/source/texture2d.cpp
+++ b/source/texture2d.cpp
@@ -2,6 +2,7 @@
 #include "bindable.h"
 #include "error.h"
 #include "pixelstore.h"
+#include "resources.h"
 #include "texture2d.h"
 
 using namespace std;
@@ -68,21 +69,26 @@ void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht
        glTexSubImage2D(target, level, x, y, wd, ht, fmt, type, data);
 }
 
-void Texture2D::load_image(const string &fn)
+void Texture2D::load_image(const string &fn, bool srgb)
 {
        Graphics::Image img;
        img.load_file(fn);
 
-       image(img);
+       image(img, srgb);
 }
 
-void Texture2D::image(const Graphics::Image &img)
+void Texture2D::image(const Graphics::Image &img, bool srgb)
 {
        unsigned w = img.get_width();
        unsigned h = img.get_height();
        PixelFormat fmt = pixelformat_from_graphics(img.get_format());
        if(width==0)
-               storage(storage_pixelformat_from_graphics(img.get_format()), w, h);
+       {
+               PixelFormat f = storage_pixelformat_from_graphics(img.get_format());
+               if(srgb)
+                       f = get_srgb_pixelformat(f);
+               storage(f, w, h);
+       }
        else if(w!=width || h!=height)
                throw incompatible_data("Texture2D::image");
 
@@ -106,6 +112,17 @@ void Texture2D::get_level_size(unsigned level, unsigned &w, unsigned &h)
 
 Texture2D::Loader::Loader(Texture2D &t):
        DataFile::DerivedObjectLoader<Texture2D, Texture::Loader>(t)
+{
+       init();
+}
+
+Texture2D::Loader::Loader(Texture2D &t, Collection &c):
+       DataFile::DerivedObjectLoader<Texture2D, Texture::Loader>(t, c)
+{
+       init();
+}
+
+void Texture2D::Loader::init()
 {
        add("image_data", &Loader::image_data);
        add("raw_data", &Loader::raw_data);
@@ -119,7 +136,7 @@ void Texture2D::Loader::image_data(const string &data)
        IO::Memory mem(data.data(), data.size());
        img.load_io(mem);
 
-       obj.image(img);
+       obj.image(img, srgb);
 }
 
 void Texture2D::Loader::raw_data(const string &data)
@@ -129,6 +146,8 @@ void Texture2D::Loader::raw_data(const string &data)
 
 void Texture2D::Loader::storage(PixelFormat fmt, unsigned w, unsigned h)
 {
+       if(srgb)
+               fmt = get_srgb_pixelformat(fmt);
        obj.storage(fmt, w, h);
 }