#include <msp/datafile/collection.h>
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_seamless_cube_map.h>
-#include <msp/gl/extensions/arb_texture_cube_map.h>
-#include <msp/gl/extensions/arb_texture_storage.h>
#include <msp/io/memory.h>
#include <msp/strings/format.h>
#include "error.h"
namespace Msp {
namespace GL {
-TextureCubeFace TextureCube::face_order[6] =
-{
- POSITIVE_X,
- NEGATIVE_X,
- POSITIVE_Y,
- NEGATIVE_Y,
- POSITIVE_Z,
- NEGATIVE_Z
-};
-
-Vector3 TextureCube::directions[6] =
+const Vector3 TextureCube::directions[6] =
{
Vector3(1, 0, 0),
Vector3(-1, 0, 0),
Vector3(0, 0, -1)
};
-unsigned TextureCube::orientations[12] =
+const unsigned TextureCube::orientations[12] =
{
5, 3,
4, 3,
1, 3
};
-TextureCube::TextureCube():
- Texture(GL_TEXTURE_CUBE_MAP),
- size(0),
- allocated(0)
-{
- static Require _req(ARB_texture_cube_map);
- if(ARB_seamless_cube_map)
- glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
-}
-
void TextureCube::storage(PixelFormat fmt, unsigned sz, unsigned lv)
{
if(size>0)
levels = get_n_levels();
if(lv>0)
levels = min(levels, lv);
-}
-void TextureCube::allocate(unsigned level)
-{
- if(size==0)
- throw invalid_operation("TextureCube::allocate");
- if(level>=levels)
- throw invalid_argument("TextureCube::allocate");
- if(allocated&(64<<level))
- return;
-
- if(ARB_texture_storage)
- {
- GLenum fmt = get_gl_pixelformat(storage_fmt);
- if(ARB_direct_state_access)
- glTextureStorage2D(id, levels, fmt, size, size);
- else
- {
- bind_scratch();
- glTexStorage2D(target, levels, fmt, size, size);
- }
- apply_swizzle();
- allocated |= (64<<levels)-1;
- }
- else
- {
- for(unsigned i=0; i<6; ++i)
- image(enumerate_faces(i), level, 0);
- }
+ allocate();
}
void TextureCube::image(TextureCubeFace face, unsigned level, const void *data)
{
- if(size==0)
- throw invalid_operation("TextureCube::image");
- if(level>=levels)
- throw out_of_range("TextureCube::image");
-
unsigned lsz = get_level_size(level);
-
- if(ARB_texture_storage)
- return sub_image(face, level, 0, 0, lsz, lsz, data);
-
- if(!allocated)
- {
- glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
- apply_swizzle();
- }
-
- GLenum fmt = get_gl_pixelformat(storage_fmt);
- GLenum comp = get_gl_components(get_components(storage_fmt));
- GLenum type = get_gl_type(get_component_type(storage_fmt));
- glTexImage2D(face, level, fmt, lsz, lsz, 0, comp, type, data);
-
- if(level==0)
- {
- allocated |= 1<<get_face_index(face);
- if((allocated&63)==63)
- allocated |= 64;
- }
- else if(!(allocated&(64<<level)))
- {
- for(unsigned i=0; i<6; ++i)
- if(enumerate_faces(i)!=face)
- glTexImage2D(enumerate_faces(i), level, fmt, lsz, lsz, 0, comp, type, 0);
-
- allocated |= 64<<level;
- }
-}
-
-void TextureCube::image(TextureCubeFace face, unsigned level, PixelComponents comp, DataType type, const void *data)
-{
- if(comp!=get_components(format) || type!=get_component_type(format))
- throw incompatible_data("TextureCube::image");
- image(face, level, data);
+ return sub_image(face, level, 0, 0, lsz, lsz, data);
}
void TextureCube::sub_image(TextureCubeFace face, unsigned level, int x, int y, unsigned wd, unsigned ht, const void *data)
if(level>=levels)
throw out_of_range("TextureCube::sub_image");
- allocate(level);
-
- GLenum comp = get_gl_components(get_components(storage_fmt));
- GLenum type = get_gl_type(get_component_type(storage_fmt));
- if(ARB_direct_state_access)
- glTextureSubImage3D(id, level, x, y, get_face_index(face), wd, ht, 1, comp, type, data);
- else
- {
- bind_scratch();
- glTexSubImage2D(face, level, x, y, wd, ht, comp, type, data);
- }
-}
-
-void TextureCube::sub_image(TextureCubeFace face, unsigned level, int x, int y, unsigned wd, unsigned ht, PixelComponents comp, DataType type, const void *data)
-{
- if(comp!=get_components(format) || type!=get_component_type(format))
- throw incompatible_data("TextureCube::subimage");
- sub_image(face, level, x, y, wd, ht, data);
+ TextureCubeBackend::sub_image(face, level, x, y, wd, ht, data);
}
void TextureCube::image(TextureCubeFace face, const Graphics::Image &img)
if(w!=h)
throw incompatible_data("TextureCube::image");
- PixelFormat fmt = pixelformat_from_image(img);
- storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w);
-
+ storage(pixelformat_from_image(img, use_srgb_format), w);
image(face, 0, img.get_pixels());
}
-void TextureCube::image(TextureCubeFace face, const Graphics::Image &img, bool)
-{
- image(face, img);
-}
-
void TextureCube::image(const Graphics::Image &img, unsigned lv)
{
unsigned w = img.get_width();
throw incompatible_data("TextureCube::image");
h /= 6;
- PixelFormat fmt = pixelformat_from_image(img);
if(size==0)
- storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, lv);
+ storage(pixelformat_from_image(img, use_srgb_format), w, lv);
else if(w!=size || h!=size)
throw incompatible_data("TextureCube::image");
const char *pixels = reinterpret_cast<const char *>(img.get_pixels());
unsigned face_size = img.get_stride()*size;
for(unsigned i=0; i<6; ++i)
- image(enumerate_faces(i), 0, pixels+i*face_size);
+ image(static_cast<TextureCubeFace>(i), 0, pixels+i*face_size);
}
unsigned TextureCube::get_n_levels() const
return size>>level;
}
-TextureCubeFace TextureCube::enumerate_faces(unsigned i)
-{
- if(i>=6)
- throw out_of_range("TextureCube::enumerate_faces");
- return face_order[i];
-}
-
-unsigned TextureCube::get_face_index(TextureCubeFace face)
-{
- switch(face)
- {
- case POSITIVE_X: return 0;
- case NEGATIVE_X: return 1;
- case POSITIVE_Y: return 2;
- case NEGATIVE_Y: return 3;
- case POSITIVE_Z: return 4;
- case NEGATIVE_Z: return 5;
- default: throw invalid_argument("TextureCube::get_face_index");
- }
-}
-
const Vector3 &TextureCube::get_face_direction(TextureCubeFace face)
{
- return directions[get_face_index(face)];
+ return directions[face];
}
const Vector3 &TextureCube::get_s_direction(TextureCubeFace face)
{
- return directions[orientations[get_face_index(face)*2]];
+ return directions[orientations[face*2]];
}
const Vector3 &TextureCube::get_t_direction(TextureCubeFace face)
{
- return directions[orientations[get_face_index(face)*2+1]];
+ return directions[orientations[face*2+1]];
}
Vector3 TextureCube::get_texel_direction(TextureCubeFace face, unsigned u, unsigned v)
return fv+s*sv+t*tv;
}
-UInt64 TextureCube::get_data_size() const
+uint64_t TextureCube::get_data_size() const
{
return id ? size*size*6*get_pixel_size(storage_fmt) : 0;
}
projects / libs / gl.git / blobdiff