+++ /dev/null
-#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"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-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),
- auto_gen_mipmap(false),
- default_sampler(*this)
-{
- if(m)
- set_manager(m);
- else if(ARB_direct_state_access)
- glCreateTextures(target, 1, &id);
- else
- glGenTextures(1, &id);
-}
-
-Texture::~Texture()
-{
- while(TexUnit *unit = TexUnit::find_unit(this))
- unbind_from(unit->get_index());
-
- 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:;
- }
-
- 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(swizzle==NO_SWIZZLE)
- return;
-
- if(get_gl_api()==OPENGL_ES2)
- {
- 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::set_parameter_i(GLenum param, int value) const
-{
- if(ARB_direct_state_access)
- glTextureParameteri(id, param, value);
- else
- glTexParameteri(target, param, value);
-}
-
-void Texture::set_min_filter(TextureFilter f)
-{
- default_sampler.set_min_filter(f);
-}
-
-void Texture::set_mag_filter(TextureFilter f)
-{
- default_sampler.set_mag_filter(f);
-}
-
-void Texture::set_filter(TextureFilter f)
-{
- default_sampler.set_filter(f);
-}
-
-void Texture::set_max_anisotropy(float a)
-{
- default_sampler.set_max_anisotropy(a);
-}
-
-void Texture::set_wrap(TextureWrap w)
-{
- default_sampler.set_wrap(w);
-}
-
-void Texture::set_wrap_s(TextureWrap w)
-{
- default_sampler.set_wrap_s(w);
-}
-
-void Texture::set_wrap_t(TextureWrap w)
-{
- default_sampler.set_wrap_t(w);
-}
-
-void Texture::set_wrap_r(TextureWrap w)
-{
- default_sampler.set_wrap_r(w);
-}
-
-bool Texture::can_generate_mipmap()
-{
- return EXT_framebuffer_object;
-}
-
-void Texture::generate_mipmap()
-{
- // 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);
- 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);
- }
-
- 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);
- }
- }
-}
-
-
-Texture::Loader::Loader(Texture &t):
- DataFile::CollectionObjectLoader<Texture>(t, 0)
-{
- 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);
-}
-
-unsigned Texture::Loader::get_levels() const
-{
- return (is_mipmapped(obj.default_sampler.get_min_filter()) ? levels : 1);
-}
-
-#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)
-{
- obj.set_filter(f);
-}
-
-void Texture::Loader::generate_mipmap(bool 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