Enable resource management on Texture2D

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

diff --git a/source/texture.cpp b/source/texture.cpp
index 3bd1df67068123a256b7ff7b8067c71f8ff7a1ca..a23e57c72615ed632e67c863e9ed37539842dcd2 100644 (file)
--- a/source/texture.cpp
+++ b/source/texture.cpp
@@ -2,6 +2,8 @@
 #include <msp/gl/extensions/sgis_generate_mipmap.h>
 #include <msp/strings/format.h>
 #include "error.h"
+#include "resourcemanager.h"
+#include "resources.h"
 #include "texture.h"
 #include "texunit.h"
 
@@ -42,7 +44,8 @@ void operator>>(const LexicalConverter &c, TextureWrap &tw)
 }
 
 
-Texture::Texture(GLenum t):
+Texture::Texture(GLenum t, ResourceManager *m):
+       id(0),
        target(t),
        min_filter(NEAREST_MIPMAP_LINEAR),
        mag_filter(LINEAR),
@@ -54,39 +57,50 @@ Texture::Texture(GLenum t):
        cmp_func(LEQUAL),
        dirty_params(0)
 {
-       glGenTextures(1, &id);
+       if(m)
+               set_manager(m);
+       else
+               glGenTextures(1, &id);
 }
 
 Texture::~Texture()
 {
-       glDeleteTextures(1, &id);
+       if(id)
+               glDeleteTextures(1, &id);
 }
 
 void Texture::update_parameter(int mask) const
 {
-       if(current()==this)
+       if(TexUnit::current().get_texture()!=this)
        {
-               if(mask&MIN_FILTER)
-                       glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter);
-               if(mask&MAG_FILTER)
-                       glTexParameteri(target, GL_TEXTURE_MAG_FILTER, mag_filter);
-               if(mask&MAX_ANISOTROPY)
-                       glTexParameteri(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
-               if(mask&WRAP_S)
-                       glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s);
-               if(mask&WRAP_T)
-                       glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_t);
-               if(mask&WRAP_R)
-                       glTexParameteri(target, GL_TEXTURE_WRAP_R, wrap_r);
-               if(mask&GENERATE_MIPMAP)
-                       glTexParameteri(target, GL_GENERATE_MIPMAP_SGIS, gen_mipmap);
-               if(mask&COMPARE)
-                       glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE));
-               if(mask&COMPARE_FUNC)
-                       glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, cmp_func);
+               TexUnit *unit = TexUnit::find_unit(this);
+               if(!unit)
+               {
+                       dirty_params |= mask;
+                       return;
+               }
+
+               unit->bind();
        }
-       else
-               dirty_params |= mask;
+
+       if(mask&MIN_FILTER)
+               glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter);
+       if(mask&MAG_FILTER)
+               glTexParameteri(target, GL_TEXTURE_MAG_FILTER, mag_filter);
+       if(mask&MAX_ANISOTROPY)
+               glTexParameteri(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
+       if(mask&WRAP_S)
+               glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s);
+       if(mask&WRAP_T)
+               glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_t);
+       if(mask&WRAP_R)
+               glTexParameteri(target, GL_TEXTURE_WRAP_R, wrap_r);
+       if(mask&GENERATE_MIPMAP)
+               glTexParameteri(target, GL_GENERATE_MIPMAP_SGIS, gen_mipmap);
+       if(mask&COMPARE)
+               glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE));
+       if(mask&COMPARE_FUNC)
+               glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, cmp_func);
 }
 
 void Texture::set_min_filter(TextureFilter f)
@@ -101,6 +115,12 @@ void Texture::set_mag_filter(TextureFilter f)
        update_parameter(MAG_FILTER);
 }
 
+void Texture::set_filter(TextureFilter f)
+{
+       set_min_filter(f);
+       set_mag_filter(f==NEAREST ? NEAREST : LINEAR);
+}
+
 void Texture::set_max_anisotropy(float a)
 {
        if(a<1.0f)
@@ -156,18 +176,21 @@ void Texture::set_compare_func(Predicate f)
        update_parameter(COMPARE_FUNC);
 }
 
-void Texture::bind() const
+void Texture::bind_to(unsigned i) const
 {
-       const Texture *cur = TexUnit::current().get_texture();
-       if(cur!=this)
+       if(!id)
+               manager->load_resource(*this);
+
+       TexUnit &unit = TexUnit::get_unit(i);
+       const Texture *cur = unit.get_texture();
+       if(unit.set_texture(this))
        {
+               unit.bind();
                if(cur && cur->target!=target)
                        glDisable(cur->target);
                if(!cur || cur->target!=target)
                        glEnable(target);
-
                glBindTexture(target, id);
-               TexUnit::current().set_texture(this);
 
                if(dirty_params)
                {
@@ -177,38 +200,44 @@ void Texture::bind() const
        }
 }
 
-void Texture::bind_to(unsigned i) const
+const Texture *Texture::current(unsigned i)
 {
-       TexUnit::activate(i);
-       bind();
+       return TexUnit::get_unit(i).get_texture();
 }
 
-const Texture *Texture::current()
+void Texture::unbind_from(unsigned i)
 {
-       return TexUnit::current().get_texture();
+       TexUnit &unit = TexUnit::get_unit(i);
+       const Texture *cur = unit.get_texture();
+       if(unit.set_texture(0))
+       {
+               unit.bind();
+               glBindTexture(cur->target, 0);
+               glDisable(cur->target);
+       }
 }
 
-void Texture::unbind()
-{
-       const Texture *cur = TexUnit::current().get_texture();
-       if(!cur)
-               return;
 
-       glBindTexture(cur->target, 0);
-       glDisable(cur->target);
-       TexUnit::current().set_texture(0);
+Texture::Loader::Loader(Texture &t):
+       DataFile::CollectionObjectLoader<Texture>(t, 0)
+{
+       init();
 }
 
-void Texture::unbind_from(unsigned i)
+Texture::Loader::Loader(Texture &t, Collection &c):
+       DataFile::CollectionObjectLoader<Texture>(t, &c)
 {
-       TexUnit::activate(i);
-       unbind();
+       init();
 }
 
-
-Texture::Loader::Loader(Texture &t):
-       DataFile::ObjectLoader<Texture>(t)
+void Texture::Loader::init()
 {
+       if(Resources *res = dynamic_cast<Resources *>(coll))
+               srgb = res->get_srgb_conversion();
+       else
+               srgb = false;
+
+       add("filter", &Loader::filter);
        add("max_anisotropy", &Loader::max_anisotropy);
        add("generate_mipmap", &Loader::generate_mipmap);
        add("mag_filter", &Loader::mag_filter);
@@ -219,6 +248,11 @@ Texture::Loader::Loader(Texture &t):
        add("wrap_t",     &Loader::wrap_t);
 }
 
+void Texture::Loader::filter(TextureFilter f)
+{
+       obj.set_filter(f);
+}
+
 void Texture::Loader::generate_mipmap(bool gm)
 {
        obj.set_generate_mipmap(gm);