-#include <msp/core/error.h>
+#include "except.h"
#include "texture.h"
#include "texunit.h"
+using namespace std;
+
namespace Msp {
namespace GL {
-void Texture::bind() const
+istream &operator>>(istream &in, TextureFilter &tf)
{
- if(!target)
- throw InvalidState("Attempt to bind a texture without target");
+ string str;
+ in>>str;
- const Texture *cur=TexUnit::current().get_texture();
- if(cur && cur->target!=target)
- glDisable(cur->target);
- if(!cur || cur->target!=target)
- glEnable(target);
- glBindTexture(target, id);
- TexUnit::current().set_texture(this);
+ if(str=="NEAREST")
+ tf = NEAREST;
+ else if(str=="LINEAR")
+ tf = LINEAR;
+ else if(str=="NEAREST_MIPMAP_NEAREST")
+ tf = NEAREST_MIPMAP_NEAREST;
+ else if(str=="NEAREST_MIPMAP_LINEAR")
+ tf = NEAREST_MIPMAP_LINEAR;
+ else if(str=="LINEAR_MIPMAP_NEAREST")
+ tf = LINEAR_MIPMAP_NEAREST;
+ else if(str=="LINEAR_MIPMAP_LINEAR")
+ tf = LINEAR_MIPMAP_LINEAR;
+ else
+ in.setstate(ios_base::failbit);
+
+ return in;
}
-void Texture::parameter(GLenum param, int value)
-{
- maybe_bind();
- glTexParameteri(target, param, value);
+void operator>>(const LexicalConverter &c, TextureWrap &tw)
+{
+ if(c.get()=="REPEAT")
+ tw = REPEAT;
+ else if(c.get()=="CLAMP_TO_EDGE")
+ tw = CLAMP_TO_EDGE;
+ else if(c.get()=="MIRRORED_REPEAT")
+ tw = MIRRORED_REPEAT;
+ else
+ throw LexicalError("Invalid input in TextureWrap conversion");
}
-void Texture::parameter(GLenum param, float value)
-{
- maybe_bind();
- glTexParameterf(target, param, value);
+Texture::Texture(GLenum t):
+ target(t),
+ min_filter(NEAREST_MIPMAP_LINEAR),
+ mag_filter(LINEAR),
+ wrap_s(REPEAT),
+ wrap_t(REPEAT),
+ wrap_r(REPEAT),
+ gen_mipmap(false),
+ compare(false),
+ cmp_func(LEQUAL),
+ dirty_params(0)
+{
+ glGenTextures(1, &id);
}
Texture::~Texture()
glDeleteTextures(1, &id);
}
+void Texture::update_parameter(int mask) const
+{
+ if(current()==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&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);
+ }
+ else
+ dirty_params |= mask;
+}
+
+void Texture::set_min_filter(TextureFilter f)
+{
+ min_filter = f;
+ update_parameter(MIN_FILTER);
+}
+
+void Texture::set_mag_filter(TextureFilter f)
+{
+ mag_filter = f;
+ update_parameter(MAG_FILTER);
+}
+
+void Texture::set_wrap(TextureWrap w)
+{
+ set_wrap_s(w);
+ set_wrap_t(w);
+ set_wrap_r(w);
+}
+
+void Texture::set_wrap_s(TextureWrap w)
+{
+ wrap_s = w;
+ update_parameter(WRAP_S);
+}
+
+void Texture::set_wrap_t(TextureWrap w)
+{
+ wrap_t = w;
+ update_parameter(WRAP_T);
+}
+
+void Texture::set_wrap_r(TextureWrap w)
+{
+ wrap_r = w;
+ update_parameter(WRAP_R);
+}
+
+void Texture::set_generate_mipmap(bool gm)
+{
+ gen_mipmap = gm;
+ update_parameter(GENERATE_MIPMAP);
+}
+
+void Texture::set_compare_enabled(bool c)
+{
+ compare = c;
+ update_parameter(COMPARE);
+}
+
+void Texture::set_compare_func(Predicate f)
+{
+ cmp_func = f;
+ update_parameter(COMPARE_FUNC);
+}
+
+void Texture::bind() const
+{
+ if(!target)
+ throw InvalidState("Attempt to bind a texture without target (should never happen)");
+
+ const Texture *cur = TexUnit::current().get_texture();
+ if(cur!=this)
+ {
+ 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)
+ {
+ update_parameter(dirty_params);
+ dirty_params = 0;
+ }
+ }
+}
+
+void Texture::bind_to(unsigned i) const
+{
+ TexUnit::activate(i);
+ bind();
+}
+
+const Texture *Texture::current()
+{
+ return TexUnit::current().get_texture();
+}
+
void Texture::unbind()
{
- const Texture *cur=TexUnit::current().get_texture();
+ const Texture *cur = TexUnit::current().get_texture();
if(!cur)
return;
TexUnit::current().set_texture(0);
}
-Texture::Texture():
- target(0)
+void Texture::unbind_from(unsigned i)
{
- glGenTextures(1, &id);
+ TexUnit::activate(i);
+ unbind();
+}
+
+
+Texture::Loader::Loader(Texture &t):
+ DataFile::ObjectLoader<Texture>(t)
+{
+ add("generate_mipmap", &Loader::generate_mipmap);
+ add("mag_filter", &Loader::mag_filter);
+ add("min_filter", &Loader::min_filter);
+ add("wrap", &Loader::wrap);
+ add("wrap_r", &Loader::wrap_r);
+ add("wrap_s", &Loader::wrap_s);
+ add("wrap_t", &Loader::wrap_t);
+}
+
+void Texture::Loader::generate_mipmap(bool gm)
+{
+ obj.set_generate_mipmap(gm);
+}
+
+void Texture::Loader::mag_filter(TextureFilter f)
+{
+ obj.set_mag_filter(f);
+}
+
+void Texture::Loader::min_filter(TextureFilter f)
+{
+ obj.set_min_filter(f);
+}
+
+void Texture::Loader::wrap(TextureWrap w)
+{
+ obj.set_wrap(w);
+}
+
+void Texture::Loader::wrap_r(TextureWrap w)
+{
+ obj.set_wrap_r(w);
+}
+
+void Texture::Loader::wrap_s(TextureWrap w)
+{
+ obj.set_wrap_s(w);
}
-void Texture::maybe_bind() const
+void Texture::Loader::wrap_t(TextureWrap w)
{
- if(TexUnit::current().get_texture()!=this)
- bind();
+ obj.set_wrap_t(w);
}
} // namespace GL
projects / libs / gl.git / blobdiff