+++ /dev/null
-#include <msp/core/raii.h>
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_texture_storage.h>
-#include <msp/gl/extensions/msp_texture1d.h>
-#include "bindable.h"
-#include "error.h"
-#include "texture1d.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-Texture1D::Texture1D():
- Texture(GL_TEXTURE_1D),
- width(0),
- allocated(0)
-{
- static Require _req(MSP_texture1D);
-}
-
-void Texture1D::storage(PixelFormat fmt, unsigned wd)
-{
- if(width>0)
- throw invalid_operation("Texture1D::storage");
- if(wd==0)
- throw invalid_argument("Texture1D::storage");
-
- set_internal_format(fmt);
- width = wd;
-}
-
-void Texture1D::allocate(unsigned level)
-{
- if(allocated&(1<<level))
- return;
-
- if(ARB_texture_storage)
- {
- unsigned n_levels = (is_mipmapped(min_filter) ? get_n_levels() : 1);
- if(ARB_direct_state_access)
- glTextureStorage1D(id, n_levels, ifmt, width);
- else
- {
- BindRestore _bind(this);
- glTexStorage1D(target, n_levels, ifmt, width);
- }
- allocated |= (1<<n_levels)-1;
- }
- else
- {
- PixelFormat base_fmt = get_base_pixelformat(ifmt);
- image(level, base_fmt, get_alloc_type(base_fmt), 0);
- }
-}
-
-void Texture1D::image(unsigned level, PixelFormat fmt, DataType type, const void *data)
-{
- if(width==0)
- throw invalid_operation("Texture1D::image");
-
- unsigned w = get_level_size(level);
-
- if(ARB_texture_storage)
- return sub_image(level, 0, w, fmt, type, data);
-
- BindRestore _bind(this);
- glTexImage1D(target, level, ifmt, w, 0, get_upload_format(fmt), type, data);
-
- allocated |= 1<<level;
- if(gen_mipmap && level==0)
- {
- auto_generate_mipmap();
- allocated |= (1<<get_n_levels())-1;
- }
-}
-
-void Texture1D::sub_image(unsigned level, int x, unsigned wd, PixelFormat fmt, DataType type, const void *data)
-{
- if(width==0)
- throw invalid_operation("Texture3D::image");
-
- Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
- allocate(level);
-
- fmt = get_upload_format(fmt);
- if(ARB_direct_state_access)
- glTextureSubImage1D(id, level, x, wd, fmt, type, data);
- else
- glTexSubImage1D(target, level, x, wd, fmt, type, data);
-
- if(gen_mipmap && level==0)
- auto_generate_mipmap();
-}
-
-void Texture1D::image(const Graphics::Image &img, bool srgb)
-{
- if(img.get_height()!=1)
- throw incompatible_data("Texture1D::image");
-
- unsigned w = img.get_width();
- PixelFormat fmt = pixelformat_from_graphics(img.get_format());
- if(width==0)
- storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w);
- else if(w!=width)
- throw incompatible_data("Texture1D::image");
-
- image(0, fmt, UNSIGNED_BYTE, img.get_data());
-}
-
-unsigned Texture1D::get_n_levels() const
-{
- unsigned n = 0;
- for(unsigned s=width; s; s>>=1, ++n) ;
- return n;
-}
-
-unsigned Texture1D::get_level_size(unsigned level) const
-{
- return width>>level;
-}
-
-UInt64 Texture1D::get_data_size() const
-{
- return id ? width*get_pixel_size(ifmt) : 0;
-}
-
-
-Texture1D::Loader::Loader(Texture1D &t):
- DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t)
-{
- init();
-}
-
-Texture1D::Loader::Loader(Texture1D &t, Collection &c):
- DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t, c)
-{
- init();
-}
-
-void Texture1D::Loader::init()
-{
- add("raw_data", &Loader::raw_data);
- add("storage", &Loader::storage);
-}
-
-void Texture1D::Loader::raw_data(const string &data)
-{
- obj.image(0, get_base_pixelformat(obj.ifmt), UNSIGNED_BYTE, data.data());
-}
-
-void Texture1D::Loader::storage(PixelFormat fmt, unsigned w)
-{
- if(srgb)
- fmt = get_srgb_pixelformat(fmt);
- obj.storage(fmt, w);
-}
-
-} // namespace GL
-} // namespace Msp