Allow texture mipmap levels to be specified in datafiles

[libs/gl.git] / source / texture1d.cpp

diff --git a/source/texture1d.cpp b/source/texture1d.cpp
index a1ee418b22381a27916c407a6d8050459c02ddb0..7163aa7a78d846ed834c32abcdb67fcc99201aa8 100644 (file)
--- a/source/texture1d.cpp
+++ b/source/texture1d.cpp
@@ -71,13 +71,16 @@ void Texture1D::image(unsigned level, PixelFormat fmt, DataType type, const void
                return sub_image(level, 0, w, fmt, type, data);
 
        BindRestore _bind(this);
+
+       if(!allocated)
+               glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
        glTexImage1D(target, level, ifmt, w, 0, get_upload_format(fmt), type, data);
 
        allocated |= 1<<level;
-       if(gen_mipmap && level==0)
+       if(auto_gen_mipmap && level==0)
        {
-               auto_generate_mipmap();
-               allocated |= (1<<get_n_levels())-1;
+               generate_mipmap();
+               allocated |= (1<<levels)-1;
        }
 }
 
@@ -95,11 +98,11 @@ void Texture1D::sub_image(unsigned level, int x, unsigned wd, PixelFormat fmt, D
        else
                glTexSubImage1D(target, level, x, wd, fmt, type, data);
 
-       if(gen_mipmap && level==0)
-               auto_generate_mipmap();
+       if(auto_gen_mipmap && level==0)
+               generate_mipmap();
 }
 
-void Texture1D::image(const Graphics::Image &img, bool srgb)
+void Texture1D::image(const Graphics::Image &img, unsigned lv, bool srgb)
 {
        if(img.get_height()!=1)
                throw incompatible_data("Texture1D::image");
@@ -107,10 +110,7 @@ void Texture1D::image(const Graphics::Image &img, bool srgb)
        unsigned w = img.get_width();
        PixelFormat fmt = pixelformat_from_graphics(img.get_format());
        if(width==0)
-       {
-               unsigned l = (is_mipmapped(min_filter) ? 0 : 1);
-               storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w, l);
-       }
+               storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w, lv);
        else if(w!=width)
                throw incompatible_data("Texture1D::image");
 
@@ -151,6 +151,7 @@ void Texture1D::Loader::init()
 {
        add("raw_data", &Loader::raw_data);
        add("storage", &Loader::storage);
+       add("storage", &Loader::storage_levels);
 }
 
 void Texture1D::Loader::raw_data(const string &data)
@@ -160,10 +161,13 @@ void Texture1D::Loader::raw_data(const string &data)
 
 void Texture1D::Loader::storage(PixelFormat fmt, unsigned w)
 {
-       if(srgb)
-               fmt = get_srgb_pixelformat(fmt);
        obj.storage(fmt, w);
 }
 
+void Texture1D::Loader::storage_levels(PixelFormat fmt, unsigned w, unsigned l)
+{
+       obj.storage(fmt, w, l);
+}
+
 } // namespace GL
 } // namespace Msp