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,
TextureCube::TextureCube():
Texture(GL_TEXTURE_CUBE_MAP),
- size(0),
- allocated(0)
+ size(0)
{
static Require _req(ARB_texture_cube_map);
if(ARB_seamless_cube_map)
- glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+ {
+ static bool seamless_init = false;
+ if(!seamless_init)
+ {
+ glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+ seamless_init = true;
+ }
+ }
}
void TextureCube::storage(PixelFormat fmt, unsigned sz, unsigned lv)
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;
-
- bool direct = ARB_texture_storage && ARB_direct_state_access;
- if(!direct)
- {
- glActiveTexture(GL_TEXTURE0);
- glBindTexture(target, id);
- }
-
- allocate_(level);
- if(!direct)
- glBindTexture(target, 0);
-}
-
-void TextureCube::allocate_(unsigned level)
-{
+ GLenum gl_fmt = get_gl_pixelformat(storage_fmt);
if(ARB_texture_storage)
{
- GLenum fmt = get_gl_pixelformat(storage_fmt);
if(ARB_direct_state_access)
- glTextureStorage2D(id, levels, fmt, size, size);
+ glTextureStorage2D(id, levels, gl_fmt, size, size);
else
- glTexStorage2D(target, levels, fmt, size, size);
- apply_swizzle();
- allocated |= (64<<levels)-1;
+ {
+ bind_scratch();
+ glTexStorage2D(target, levels, gl_fmt, size, size);
+ }
}
else
{
- for(unsigned i=0; i<6; ++i)
- image_(enumerate_faces(i), level, 0);
- }
-}
-
-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");
-
- if(ARB_texture_storage)
- {
- unsigned lsz = get_level_size(level);
- return sub_image(face, level, 0, 0, lsz, lsz, data);
- }
-
- glActiveTexture(GL_TEXTURE0);
- glBindTexture(target, id);
-
- image_(face, level, data);
-
- if(auto_gen_mipmap && level==0 && (allocated&63)==63)
- {
- generate_mipmap_();
- allocated |= (64<<levels)-1;
- }
-
- glBindTexture(target, 0);
-}
-
-void TextureCube::image_(TextureCubeFace face, unsigned level, const void *data)
-{
- if(!allocated)
- {
+ bind_scratch();
+ GLenum comp = get_gl_components(get_components(storage_fmt));
+ GLenum type = get_gl_type(get_component_type(storage_fmt));
+ for(unsigned i=0; i<levels; ++i)
+ {
+ unsigned lv_size = get_level_size(i);
+ for(unsigned j=0; j<6; ++j)
+ glTexImage2D(get_gl_cube_face(static_cast<TextureCubeFace>(j)), i, gl_fmt, lv_size, lv_size, 0, comp, type, 0);
+ }
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
- apply_swizzle();
- }
-
- unsigned lsz = get_level_size(level);
- 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;
- }
+ apply_swizzle();
}
-void TextureCube::image(TextureCubeFace face, unsigned level, PixelComponents comp, DataType type, const void *data)
+void TextureCube::image(TextureCubeFace face, unsigned level, const void *data)
{
- if(comp!=get_components(format) || type!=get_component_type(format))
- throw incompatible_data("TextureCube::image");
- image(face, level, data);
+ unsigned lsz = get_level_size(level);
+ 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");
- bool direct = (ARB_direct_state_access && (ARB_texture_storage || (allocated&(1<<level))));
- if(!direct)
- {
- glActiveTexture(GL_TEXTURE0);
- glBindTexture(target, id);
- }
-
- allocate_(level);
-
+ GLenum gl_face = get_gl_cube_face(face);
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);
+ glTextureSubImage3D(id, level, x, y, face, wd, ht, 1, comp, type, data);
else
- glTexSubImage2D(face, level, x, y, wd, ht, comp, type, data);
-
- if(auto_gen_mipmap && level==0)
- generate_mipmap_();
-
- if(!direct)
- glBindTexture(target, 0);
-}
-
-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);
+ {
+ bind_scratch();
+ glTexSubImage2D(gl_face, level, x, y, wd, ht, comp, type, data);
+ }
}
void TextureCube::image(TextureCubeFace face, const Graphics::Image &img)
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();
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;
}
}
+GLenum get_gl_cube_face(TextureCubeFace face)
+{
+ switch(face)
+ {
+ case POSITIVE_X: return GL_TEXTURE_CUBE_MAP_POSITIVE_X;
+ case NEGATIVE_X: return GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
+ case POSITIVE_Y: return GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
+ case NEGATIVE_Y: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
+ case POSITIVE_Z: return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
+ case NEGATIVE_Z: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
+ default: throw invalid_argument("get_gl_cube_face");
+ }
+}
+
void operator>>(const LexicalConverter &conv, TextureCubeFace &face)
{
const string &str = conv.get();
projects / libs / gl.git / blobdiff