-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include "except.h"
+#include <msp/gl/extensions/arb_direct_state_access.h>
+#include <msp/gl/extensions/arb_texture_swizzle.h>
+#include <msp/gl/extensions/ext_framebuffer_object.h>
+#include <msp/io/memory.h>
+#include "bindable.h"
+#include "error.h"
+#include "resourcemanager.h"
+#include "resources.h"
#include "texture.h"
#include "texunit.h"
namespace Msp {
namespace GL {
-istream &operator>>(istream &in, TextureFilter &tf)
-{
- string str;
- in>>str;
-
- 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;
+int Texture::swizzle_orders[] =
+{
+ GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA,
+ GL_RED, GL_RED, GL_RED, GL_ONE,
+ GL_RED, GL_RED, GL_RED, GL_GREEN,
+ GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA
+};
+
+Texture::Texture(GLenum t, ResourceManager *m):
+ id(0),
+ target(t),
+ format(RGB8),
+ storage_fmt(RGB8),
+ swizzle(NO_SWIZZLE),
+ use_srgb_format(false),
+ auto_gen_mipmap(false),
+ default_sampler(*this)
+{
+ if(m)
+ set_manager(m);
+ else if(ARB_direct_state_access)
+ glCreateTextures(target, 1, &id);
else
- in.setstate(ios_base::failbit);
+ glGenTextures(1, &id);
+}
+
+Texture::~Texture()
+{
+ while(TexUnit *unit = TexUnit::find_unit(this))
+ unbind_from(unit->get_index());
- return in;
+ if(id)
+ glDeleteTextures(1, &id);
}
+void Texture::set_format(PixelFormat fmt)
+{
+ PixelComponents comp = get_components(fmt);
+ PixelComponents st_comp = comp;
+ FormatSwizzle swiz = NO_SWIZZLE;
+ switch(comp)
+ {
+ case LUMINANCE:
+ st_comp = RED;
+ swiz = R_TO_LUMINANCE;
+ break;
+ case LUMINANCE_ALPHA:
+ st_comp = RG;
+ swiz = RG_TO_LUMINANCE_ALPHA;
+ break;
+ case BGR:
+ st_comp = RGB;
+ swiz = RGB_TO_BGR;
+ break;
+ case BGRA:
+ st_comp = RGBA;
+ swiz = RGB_TO_BGR;
+ break;
+ default:;
+ }
-void Texture::bind() const
+ PixelFormat st_fmt = make_pixelformat(st_comp, get_component_type(fmt));
+ require_pixelformat(st_fmt);
+ if(swiz!=NO_SWIZZLE)
+ static Require _req(ARB_texture_swizzle);
+
+ format = fmt;
+ storage_fmt = st_fmt;
+ swizzle = swiz;
+}
+
+void Texture::apply_swizzle()
{
- if(!target)
- throw InvalidState("Attempt to bind a texture without target");
+ if(swizzle==NO_SWIZZLE)
+ return;
- const Texture *cur=TexUnit::current().get_texture();
- if(cur!=this)
+ if(get_gl_api()==OPENGL_ES2)
{
- if(cur && cur->target!=target)
- glDisable(cur->target);
- if(!cur || cur->target!=target)
- glEnable(target);
- glBindTexture(target, id);
- TexUnit::current().set_texture(this);
+ set_parameter_i(GL_TEXTURE_SWIZZLE_R, swizzle_orders[swizzle*4]);
+ set_parameter_i(GL_TEXTURE_SWIZZLE_G, swizzle_orders[swizzle*4+1]);
+ set_parameter_i(GL_TEXTURE_SWIZZLE_B, swizzle_orders[swizzle*4+2]);
+ set_parameter_i(GL_TEXTURE_SWIZZLE_A, swizzle_orders[swizzle*4+3]);
+ }
+ else
+ {
+ if(ARB_direct_state_access)
+ glTextureParameteriv(id, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4);
+ else
+ glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4);
}
}
-void Texture::bind_to(unsigned i) const
+void Texture::set_parameter_i(GLenum param, int value) const
{
- TexUnit::activate(i);
- bind();
+ if(ARB_direct_state_access)
+ glTextureParameteri(id, param, value);
+ else
+ glTexParameteri(target, param, value);
}
-void Texture::parameter(GLenum param, int value)
+void Texture::set_min_filter(TextureFilter f)
{
- maybe_bind();
+ default_sampler.set_min_filter(f);
+}
- glTexParameteri(target, param, value);
+void Texture::set_mag_filter(TextureFilter f)
+{
+ default_sampler.set_mag_filter(f);
}
-void Texture::parameter(GLenum param, float value)
+void Texture::set_filter(TextureFilter f)
{
- maybe_bind();
+ default_sampler.set_filter(f);
+}
- glTexParameterf(target, param, value);
+void Texture::set_max_anisotropy(float a)
+{
+ default_sampler.set_max_anisotropy(a);
}
-Texture::~Texture()
+void Texture::set_wrap(TextureWrap w)
{
- glDeleteTextures(1, &id);
+ default_sampler.set_wrap(w);
}
-void Texture::unbind()
+void Texture::set_wrap_s(TextureWrap w)
{
- const Texture *cur=TexUnit::current().get_texture();
- if(!cur)
- return;
+ default_sampler.set_wrap_s(w);
+}
- glBindTexture(cur->target, 0);
- glDisable(cur->target);
- TexUnit::current().set_texture(0);
+void Texture::set_wrap_t(TextureWrap w)
+{
+ default_sampler.set_wrap_t(w);
}
-void Texture::unbind_from(unsigned i)
+void Texture::set_wrap_r(TextureWrap w)
{
- TexUnit::activate(i);
- unbind();
+ default_sampler.set_wrap_r(w);
}
-Texture::Texture():
- target(0)
+bool Texture::can_generate_mipmap()
{
- glGenTextures(1, &id);
+ return EXT_framebuffer_object;
}
-void Texture::maybe_bind() const
+void Texture::generate_mipmap()
{
- if(TexUnit::current().get_texture()!=this)
- bind();
+ // glGenerateMipmap is defined here
+ static Require _req(EXT_framebuffer_object);
+
+ if(ARB_direct_state_access)
+ glGenerateTextureMipmap(id);
+ else
+ {
+ BindRestore _bind(this);
+ glGenerateMipmap(target);
+ }
+}
+
+void Texture::set_auto_generate_mipmap(bool gm)
+{
+ if(gm)
+ static Require _req(EXT_framebuffer_object);
+
+ auto_gen_mipmap = gm;
+}
+
+void Texture::set_compare_enabled(bool c)
+{
+ if(c)
+ default_sampler.set_compare(default_sampler.get_compare_function());
+ else
+ default_sampler.disable_compare();
+}
+
+void Texture::set_compare_func(Predicate f)
+{
+ default_sampler.set_compare(f);
+}
+
+void Texture::load_image(const string &fn, bool)
+{
+ load_image(fn, 0U);
+}
+
+void Texture::load_image(const string &fn, unsigned lv)
+{
+ Graphics::Image img;
+ img.load_file(fn);
+
+ image(img, lv);
+}
+
+void Texture::image(const Graphics::Image &img, bool)
+{
+ image(img, 0U);
+}
+
+void Texture::bind_to(unsigned i) const
+{
+ if(!id)
+ {
+ if(manager)
+ manager->resource_used(*this);
+ if(!id)
+ {
+ unbind_from(i);
+ return;
+ }
+ }
+
+ TexUnit &unit = TexUnit::get_unit(i);
+ const Texture *cur = unit.get_texture();
+ if(unit.set_texture(this))
+ {
+ if(manager)
+ manager->resource_used(*this);
+
+ if(ARB_direct_state_access)
+ glBindTextureUnit(i, id);
+ else
+ {
+ unit.bind();
+ glBindTexture(target, id);
+ }
+
+ if(!unit.get_sampler() || unit.get_sampler()==&cur->default_sampler)
+ default_sampler.bind_to(i);
+ }
+}
+
+const Texture *Texture::current(unsigned i)
+{
+ return TexUnit::get_unit(i).get_texture();
+}
+
+void Texture::unbind_from(unsigned i)
+{
+ TexUnit &unit = TexUnit::get_unit(i);
+ const Texture *cur = unit.get_texture();
+ if(unit.set_texture(0))
+ {
+ if(ARB_direct_state_access)
+ glBindTextureUnit(i, 0);
+ else
+ {
+ unit.bind();
+ glBindTexture(cur->target, 0);
+ }
+
+ if(unit.get_sampler()==&cur->default_sampler)
+ Sampler::unbind_from(i);
+ }
}
Texture::Loader::Loader(Texture &t):
- tex(t)
+ DataFile::CollectionObjectLoader<Texture>(t, 0)
{
- add("min_filter", &Loader::min_filter);
- add("mag_filter", &Loader::mag_filter);
+ init();
+}
+
+Texture::Loader::Loader(Texture &t, Collection &c):
+ DataFile::CollectionObjectLoader<Texture>(t, &c)
+{
+ init();
+}
+
+void Texture::Loader::init()
+{
+ levels = 0;
+
+ add("external_image", &Loader::external_image);
+ add("external_image_srgb", &Loader::external_image);
+ add("filter", &Loader::filter);
add("generate_mipmap", &Loader::generate_mipmap);
+ add("image_data", &Loader::image_data);
+ add("mag_filter", &Loader::mag_filter);
+ add("max_anisotropy", &Loader::max_anisotropy);
+ add("min_filter", &Loader::min_filter);
+ add("mipmap_levels", &Loader::mipmap_levels);
+ add("sampler", &Loader::sampler);
+ 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::min_filter(TextureFilter f)
+unsigned Texture::Loader::get_levels() const
{
- tex.set_min_filter(f);
+ return (is_mipmapped(obj.default_sampler.get_min_filter()) ? levels : 1);
}
-void Texture::Loader::mag_filter(TextureFilter f)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+void Texture::Loader::load_external_image(Graphics::Image &img, const std::string &fn)
+{
+ RefPtr<IO::Seekable> io = get_collection().open_raw(fn);
+ if(!io)
+ throw IO::file_not_found(fn);
+ img.load_io(*io);
+}
+
+void Texture::Loader::external_image(const string &fn)
+{
+ obj.use_srgb_format = false;
+ external_image_common(fn);
+}
+
+void Texture::Loader::external_image_srgb(const string &fn)
+{
+ obj.use_srgb_format = true;
+ external_image_common(fn);
+}
+
+void Texture::Loader::external_image_common(const string &fn)
+{
+ if(obj.manager)
+ obj.manager->set_resource_location(obj, get_collection(), fn);
+ else
+ {
+ Graphics::Image img;
+ load_external_image(img, fn);
+ obj.image(img, get_levels());
+ }
+}
+
+void Texture::Loader::filter(TextureFilter f)
{
- tex.set_mag_filter(f);
+ obj.set_filter(f);
}
void Texture::Loader::generate_mipmap(bool gm)
{
- tex.parameter(GL_GENERATE_MIPMAP_SGIS, gm);
+ obj.set_auto_generate_mipmap(gm);
+}
+
+void Texture::Loader::image_data(const string &data)
+{
+ Graphics::Image img;
+ IO::Memory mem(data.data(), data.size());
+ img.load_io(mem);
+
+ obj.image(img, get_levels());
+}
+
+void Texture::Loader::mag_filter(TextureFilter f)
+{
+ obj.set_mag_filter(f);
+}
+
+void Texture::Loader::max_anisotropy(float a)
+{
+ obj.set_max_anisotropy(a);
+}
+
+void Texture::Loader::min_filter(TextureFilter f)
+{
+ obj.set_min_filter(f);
+}
+
+void Texture::Loader::mipmap_levels(unsigned l)
+{
+ levels = l;
+}
+
+void Texture::Loader::sampler()
+{
+ load_sub(obj.default_sampler);
+}
+
+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::Loader::wrap_t(TextureWrap w)
+{
+ obj.set_wrap_t(w);
}
+#pragma GCC diagnostic pop
} // namespace GL
} // namespace Msp
projects / libs / gl.git / blobdiff