Use explicit mipmap generation if necessary

[libs/gl.git] / source / texture3d.cpp

diff --git a/source/texture3d.cpp b/source/texture3d.cpp
index 95b96903254d222507e1aed834c07fa13672b109..7b9c3590ef6bc7eb8e936e20816c36549bbdec2c 100644 (file)
--- a/source/texture3d.cpp
+++ b/source/texture3d.cpp
@@ -1,8 +1,9 @@
 #include <cmath>
+#include <msp/gl/extensions/ext_texture3d.h>
 #include <msp/graphics/image.h>
 #include "bindable.h"
 #include "error.h"
-#include "ext_texture3d.h"
+#include "pixelstore.h"
 #include "texture3d.h"
 
 using namespace std;
@@ -12,6 +13,7 @@ namespace GL {
 
 Texture3D::Texture3D():
        Texture(GL_TEXTURE_3D),
+       ifmt(RGB),
        width(0),
        height(0),
        depth(0),
@@ -52,12 +54,13 @@ void Texture3D::image(unsigned level, PixelFormat fmt, DataType type, const void
        unsigned d = depth;
        get_level_size(level, w, h, d);
 
-       Bind _bind(this, true);
+       BindRestore _bind(this);
        glTexImage3D(target, level, ifmt, width, height, depth, 0, fmt, type, data);
 
        allocated |= 1<<level;
        if(gen_mipmap && level==0)
        {
+               auto_generate_mipmap();
                for(; (w || h || d); w>>=1, h>>=1, d>>=1, ++level) ;
                allocated |= (1<<level)-1;
        }
@@ -70,7 +73,7 @@ void Texture3D::sub_image(unsigned level, int x, int y, int z, unsigned wd, unsi
 
        allocate(level);
 
-       Bind _bind(this, true);
+       BindRestore _bind(this);
        glTexSubImage3D(target, level, x, y, z, wd, ht, dp, fmt, type, data);
 }
 
@@ -110,11 +113,14 @@ void Texture3D::load_image(const string &fn, int dp)
 
        PixelFormat fmt = pixelformat_from_graphics(img.get_format());
        if(width==0)
-               storage(fmt, w, h, d);
+               storage(storage_pixelformat_from_graphics(img.get_format()), w, h, d);
        else if(w!=width || h!=height || d!=depth)
                throw incompatible_data("Texture3D::load_image");
 
-       image(0, fmt, UNSIGNED_INT, img.get_data());
+       PixelStore pstore = PixelStore::from_image(img);
+       BindRestore _bind_ps(pstore);
+
+       image(0, fmt, UNSIGNED_BYTE, img.get_data());
 }
 
 void Texture3D::get_level_size(unsigned level, unsigned &w, unsigned &h, unsigned &d)
@@ -131,5 +137,10 @@ void Texture3D::get_level_size(unsigned level, unsigned &w, unsigned &h, unsigne
                d = 1;
 }
 
+UInt64 Texture3D::get_data_size() const
+{
+       return id ? width*height*depth*get_pixel_size(ifmt) : 0;
+}
+
 } // namespace GL
 } // namespace Msp