-#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/gl/extensions/khr_debug.h>
+#include <msp/datafile/rawdata.h>
#include <msp/io/memory.h>
#include "error.h"
#include "resourcemanager.h"
-#include "resources.h"
#include "texture.h"
+#include "texture1d.h"
+#include "texture2d.h"
+#include "texture2darray.h"
+#include "texture3d.h"
+#include "texturecube.h"
using namespace std;
namespace Msp {
namespace GL {
-const 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::scratch_binding = 0;
-
-Texture::Texture(GLenum t, ResourceManager *m):
- id(0),
- target(t),
- format(NO_PIXELFORMAT),
- storage_fmt(format),
- swizzle(NO_SWIZZLE),
- use_srgb_format(false),
- auto_gen_mipmap(false)
-{
- if(m)
- set_manager(m);
- else
- generate_id();
-
- static bool alignment_init = false;
- if(!alignment_init)
- {
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- alignment_init = true;
- }
-}
-
-Texture::~Texture()
-{
- if(this==scratch_binding)
- unbind_scratch();
- if(id)
- glDeleteTextures(1, &id);
-}
-
-void Texture::generate_id()
-{
- if(id)
- throw invalid_operation("Texture::generate_id");
- if(ARB_direct_state_access)
- glCreateTextures(target, 1, &id);
- else
- glGenTextures(1, &id);
-
-#ifdef DEBUG
- if(!debug_name.empty() && KHR_debug)
- glObjectLabel(GL_TEXTURE, id, debug_name.size(), debug_name.c_str());
-#endif
-}
+Texture::Texture(unsigned t):
+ TextureBackend(t)
+{ }
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:;
- }
+ ComponentSwizzle swiz = get_required_swizzle(comp);
+ PixelComponents st_comp = unswizzle_components(comp, swiz);
PixelFormat st_fmt = make_pixelformat(st_comp, get_component_type(fmt), is_srgb(fmt));
require_pixelformat(st_fmt);
if(swiz!=NO_SWIZZLE)
- static Require _req(ARB_texture_swizzle);
+ require_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
+unsigned Texture::count_levels(unsigned size)
{
- if(ARB_direct_state_access)
- glTextureParameteri(id, param, value);
- else
- glTexParameteri(target, param, value);
+ unsigned n = 0;
+ for(; size; size>>=1, ++n) ;
+ return n;
}
-void Texture::generate_mipmap()
+void Texture::stage_pixels(void *staging, const void *data, size_t count)
{
- // glGenerateMipmap is defined here
- static Require _req(EXT_framebuffer_object);
-
- if(ARB_direct_state_access)
- glGenerateTextureMipmap(id);
+ if(swizzle==RGBA_TO_RGB)
+ {
+ const uint32_t *src = static_cast<const uint32_t *>(data);
+ uint32_t *dst = static_cast<uint32_t *>(staging);
+ size_t i = 0;
+ for(; i+3<count; i+=4)
+ {
+ dst[0] = src[0]|0xFF000000;
+ dst[1] = (src[0]>>24)|(src[1]<<8)|0xFF000000;
+ dst[2] = (src[1]>>16)|(src[2]<<16)|0xFF000000;
+ dst[3] = (src[2]>>8)|0xFF000000;
+ src += 3;
+ dst += 4;
+ }
+
+ if(i<count)
+ {
+ const uint8_t *src_bytes = reinterpret_cast<const uint8_t *>(src);
+ for(; i<count; ++i)
+ {
+ *dst++ = src_bytes[0]|(src_bytes[1]<<8)|(src_bytes[2]<<16)|0xFF000000;
+ src_bytes += 3;
+ }
+ }
+ }
else
{
- bind_scratch();
- glGenerateMipmap(target);
+ const char *src = static_cast<const char *>(data);
+ size_t data_size = count*get_pixel_size(storage_fmt);
+ copy(src, src+data_size, static_cast<char *>(staging));
}
}
image(img, lv);
}
-void Texture::set_debug_name(const string &name)
+Texture::GenericLoader::TypeRegistry &Texture::get_texture_registry()
{
-#ifdef DEBUG
- debug_name = name;
- if(id && KHR_debug)
- glObjectLabel(GL_TEXTURE, id, name.size(), name.c_str());
-#else
- (void)name;
-#endif
-}
-
-void Texture::bind_scratch()
-{
- if(!scratch_binding)
- glActiveTexture(GL_TEXTURE0);
- if(scratch_binding!=this)
- {
- if(scratch_binding && scratch_binding->target!=target)
- glBindTexture(scratch_binding->target, 0);
- glBindTexture(target, id);
- scratch_binding = this;
- }
-}
-
-void Texture::unbind_scratch()
-{
- if(scratch_binding)
+ static GenericLoader::TypeRegistry registry;
+ static bool initialized = false;
+ if(!initialized)
{
- glBindTexture(scratch_binding->target, 0);
- scratch_binding = 0;
+ initialized = true;
+ registry.register_type<Texture1D>("1d");
+ registry.register_type<Texture2D>("2d");
+ registry.register_type<Texture3D>("3d");
+ registry.register_type<Texture2DArray>("2d_array");
+ registry.register_type<TextureCube>("cube");
}
+ return registry;
}
-Texture::Loader::Loader(Texture &t):
- DataFile::CollectionObjectLoader<Texture>(t, 0)
+Texture::Loader::Loader(Texture &t, Collection *c):
+ CollectionObjectLoader<Texture>(t, c),
+ levels(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_srgb);
+ add("external_data", &Loader::external_data);
+ add("external_image", &Loader::external_image, false);
+ add("external_image_srgb", &Loader::external_image, true);
add("generate_mipmap", &Loader::generate_mipmap);
add("image_data", &Loader::image_data);
add("mipmap_levels", &Loader::mipmap_levels);
+ add("raw_data", &Loader::raw_data);
}
void Texture::Loader::finish()
img.load_io(*io);
}
-void Texture::Loader::external_image(const string &fn)
+void Texture::Loader::external_data(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);
+ if(obj.manager)
+ obj.manager->set_resource_location(obj, get_collection(), fn);
+ else
+ {
+ DataFile::RawData rd;
+ rd.open_file(get_collection(), fn);
+ rd.load();
+ obj.image(0, rd.get_data());
+ }
}
-void Texture::Loader::external_image_common(const string &fn)
+void Texture::Loader::external_image(bool srgb, const string &fn)
{
+ obj.use_srgb_format = srgb;
if(obj.manager)
obj.manager->set_resource_location(obj, get_collection(), fn);
else
void Texture::Loader::image_data(const string &data)
{
if(obj.manager)
- {
obj.set_manager(0);
- if(!obj.id)
- obj.generate_id();
- }
Graphics::Image img;
IO::Memory mem(data.data(), data.size());
levels = l;
}
+void Texture::Loader::raw_data(const string &data)
+{
+ if(obj.manager)
+ obj.set_manager(0);
+
+ obj.image(0, data.data());
+}
+
} // namespace GL
} // namespace Msp
projects / libs / gl.git / blobdiff