-#include <msp/datafile/rawdata.h>
#include <msp/gl/extensions/arb_direct_state_access.h>
#include <msp/gl/extensions/arb_texture_storage.h>
#include <msp/gl/extensions/arb_vertex_buffer_object.h>
-#include <msp/graphics/imageloader.h>
#include "buffer.h"
#include "gl.h"
#include "texture2d.h"
namespace Msp {
namespace GL {
-class OpenGLTexture2D::AsyncLoader: public Resource::AsyncLoader
-{
-private:
- Texture2D &texture;
- IO::Seekable &io;
- Buffer pixel_buffer;
- char *mapped_address = 0;
- Graphics::Image image;
- Graphics::ImageLoader *img_loader = 0;
- DataFile::RawData *raw_data = 0;
- unsigned n_bytes = 0;
- int phase = 0;
-
-public:
- AsyncLoader(Texture2D &, IO::Seekable &);
- ~AsyncLoader();
-
- virtual bool needs_sync() const;
- virtual bool process();
-};
-
-
OpenGLTexture2D::OpenGLTexture2D():
Texture(GL_TEXTURE_2D)
{ }
}
}
-void OpenGLTexture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, const Buffer &buffer, unsigned offset)
-{
- glBindBuffer(GL_PIXEL_UNPACK_BUFFER, buffer.id);
- sub_image(level, x, y, wd, ht, reinterpret_cast<void *>(offset));
- glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
-}
-
-Resource::AsyncLoader *OpenGLTexture2D::load(IO::Seekable &io, const Resources *)
-{
- return new AsyncLoader(static_cast<Texture2D &>(*this), io);
-}
-
uint64_t OpenGLTexture2D::get_data_size() const
{
if(!id)
}
-OpenGLTexture2D::AsyncLoader::AsyncLoader(Texture2D &t, IO::Seekable &i):
- texture(t),
- io(i)
+OpenGLTexture2D::AsyncTransfer::AsyncTransfer(AsyncTransfer &&other):
+ pixel_buffer(other.pixel_buffer)
{
- char magic[4] = { };
- io.read(magic, 4);
- io.seek(0, IO::S_BEG);
-
- if(DataFile::RawData::detect_signature(string(magic, 4)))
- {
- raw_data = new DataFile::RawData;
- raw_data->open_io(io, "async");
- }
- else
- img_loader = Graphics::ImageLoader::open_io(io);
+ other.pixel_buffer = 0;
}
-OpenGLTexture2D::AsyncLoader::~AsyncLoader()
+OpenGLTexture2D::AsyncTransfer &OpenGLTexture2D::AsyncTransfer::operator=(AsyncTransfer &&other)
{
- if(mapped_address)
- pixel_buffer.unmap();
- delete img_loader;
- delete raw_data;
+ delete pixel_buffer;
+ pixel_buffer = other.pixel_buffer;
+ other.pixel_buffer = 0;
+
+ return *this;
}
-bool OpenGLTexture2D::AsyncLoader::needs_sync() const
+OpenGLTexture2D::AsyncTransfer::~AsyncTransfer()
{
- return phase%2;
+ delete pixel_buffer;
}
-bool OpenGLTexture2D::AsyncLoader::process()
+void *OpenGLTexture2D::AsyncTransfer::allocate()
{
- if(phase==0)
- {
- if(raw_data)
- n_bytes = raw_data->get_size();
- else
- {
- image.load_headers(*img_loader);
- n_bytes = image.get_stride()*image.get_height();
- }
- }
- else if(phase==1)
- {
- pixel_buffer.storage(n_bytes, STREAMING);
- mapped_address = reinterpret_cast<char *>(pixel_buffer.map());
- }
- else if(phase==2)
- {
- if(raw_data)
- raw_data->load_into(mapped_address);
- else
- image.load_into(*img_loader, mapped_address);
- }
- else if(phase==3)
- {
- mapped_address = 0;
- if(!pixel_buffer.unmap())
- {
- phase = 1;
- return false;
- }
+ const Texture2D::AsyncTransfer &self = *static_cast<const Texture2D::AsyncTransfer *>(this);
- if(!texture.id)
- texture.create();
+ pixel_buffer = new Buffer;
+ pixel_buffer->storage(self.data_size, STREAMING);
+ return pixel_buffer->map();
+}
- if(img_loader)
- {
- unsigned w = image.get_width();
- unsigned h = image.get_height();
- texture.storage(pixelformat_from_image(image, texture.use_srgb_format), w, h);
- }
- texture.OpenGLTexture2D::sub_image(0, 0, 0, texture.width, texture.height, pixel_buffer, 0);
+void OpenGLTexture2D::AsyncTransfer::finalize()
+{
+ const Texture2D::AsyncTransfer &self = *static_cast<const Texture2D::AsyncTransfer *>(this);
- if(texture.auto_gen_mipmap)
- texture.generate_mipmap();
- }
+ pixel_buffer->unmap();
- ++phase;
- return phase>3;
+ glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pixel_buffer->id);
+ self.texture->OpenGLTexture2D::sub_image(self.level, self.x, self.y, self.width, self.height, 0);
+ glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
} // namespace GL