X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Ftexture2d.cpp;h=74071535e73f41e768f053cd5041479fe80353c3;hb=c218e021ede4e91c0fbc22ea9d636283409f847f;hp=528c4a58d216416ad2ca9816852bd0a7001d2a9e;hpb=a92362ad19b65f66b98e0dc4d034da5e4eb5cf36;p=libs%2Fgl.git

diff --git a/source/core/texture2d.cpp b/source/core/texture2d.cpp
index 528c4a58..74071535 100644
--- a/source/core/texture2d.cpp
+++ b/source/core/texture2d.cpp
@@ -1,11 +1,4 @@
-#include <msp/core/raii.h>
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_texture_storage.h>
-#include <msp/graphics/imageloader.h>
-#include "bindable.h"
-#include "buffer.h"
 #include "error.h"
-#include "resources.h"
 #include "texture2d.h"
 
 using namespace std;
@@ -13,34 +6,6 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-class Texture2D::AsyncLoader: public Resource::AsyncLoader
-{
-private:
-	Texture2D &texture;
-	IO::Seekable &io;
-	Buffer pixel_buffer;
-	char *mapped_address;
-	Graphics::Image image;
-	Graphics::ImageLoader *img_loader;
-	unsigned n_bytes;
-	int phase;
-
-public:
-	AsyncLoader(Texture2D &, IO::Seekable &);
-	~AsyncLoader();
-
-	virtual bool needs_sync() const;
-	virtual bool process();
-};
-
-
-Texture2D::Texture2D(ResourceManager *m):
-	Texture(GL_TEXTURE_2D, m),
-	width(0),
-	height(0),
-	allocated(0)
-{ }
-
 Texture2D::~Texture2D()
 {
 	set_manager(0);
@@ -50,7 +15,7 @@ void Texture2D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned lv)
 {
 	if(width>0)
 	{
-		if(fmt!=format || wd!=width || ht!=height || (lv && lv!=levels))
+		if(fmt!=format || wd!=width || ht!=height || (lv && lv!=n_levels))
 			throw incompatible_data("Texture2D::storage");
 		return;
 	}
@@ -60,156 +25,38 @@ void Texture2D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned lv)
 	set_format(fmt);
 	width = wd;
 	height = ht;
-	levels = get_n_levels();
+	n_levels = count_levels(max(width, height));
 	if(lv>0)
-		levels = min(levels, lv);
-}
-
-void Texture2D::allocate(unsigned level)
-{
-	if(width==0 || height==0)
-		throw invalid_operation("Texture2D::allocate");
-	if(level>=levels)
-		throw invalid_argument("Texture2D::allocate");
+		n_levels = min(n_levels, lv);
 
-	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 Texture2D::allocate_(unsigned level)
-{
-	if(allocated&(1<<level))
-		return;
-
-	if(ARB_texture_storage)
-	{
-		if(ARB_direct_state_access)
-			glTextureStorage2D(id, levels, storage_fmt, width, height);
-		else
-			glTexStorage2D(target, levels, storage_fmt, width, height);
-		apply_swizzle();
-		allocated |= (1<<levels)-1;
-	}
-	else
-		image_(level, 0);
+	allocate();
 }
 
 void Texture2D::image(unsigned level, const void *data)
 {
-	if(width==0 || height==0)
-		throw invalid_operation("Texture2D::image");
-	if(level>=levels)
-		throw out_of_range("Texture2D::image");
-
-	if(ARB_texture_storage)
-	{
-		LinAl::Vector<unsigned, 2> size = get_level_size(level);
-		return sub_image(level, 0, 0, size.x, size.y, data);
-	}
-
-	glActiveTexture(GL_TEXTURE0);
-	glBindTexture(target, id);
-
-	image_(level, data);
-
-	if(auto_gen_mipmap && level==0)
-	{
-		generate_mipmap_();
-		allocated |= (1<<levels)-1;
-	}
-
-	glBindTexture(target, 0);
-}
-
-void Texture2D::image_(unsigned level, const void *data)
-{
-	if(!allocated)
-	{
-		glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
-		apply_swizzle();
-	}
-
 	LinAl::Vector<unsigned, 2> size = get_level_size(level);
-	PixelComponents comp = get_components(storage_fmt);
-	GLenum type = get_gl_type(get_component_type(storage_fmt));
-	glTexImage2D(target, level, storage_fmt, size.x, size.y, 0, comp, type, data);
-
-	allocated |= 1<<level;
-}
-
-void Texture2D::image(unsigned level, PixelComponents comp, DataType type, const void *data)
-{
-	if(comp!=get_components(format) || type!=get_component_type(format))
-		throw incompatible_data("Texture2D::image");
-	image(level, data);
+	return sub_image(level, 0, 0, size.x, size.y, data);
 }
 
-void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, const void *data)
+void Texture2D::sub_image(unsigned level, unsigned x, unsigned y, unsigned wd, unsigned ht, const void *data)
 {
 	if(width==0 || height==0)
 		throw invalid_operation("Texture2D::sub_image");
-	if(level>=levels)
+	if(level>=n_levels || x>width || x+wd>width || y>height || y+ht>height)
 		throw out_of_range("Texture2D::sub_image");
 
-	bool direct = (ARB_direct_state_access && (ARB_texture_storage || (allocated&(1<<level))));
-	if(!direct)
-	{
-		glActiveTexture(GL_TEXTURE0);
-		glBindTexture(target, id);
-	}
-
-	allocate_(level);
-
-	PixelComponents comp = get_components(storage_fmt);
-	GLenum type = get_gl_type(get_component_type(storage_fmt));
-	if(ARB_direct_state_access)
-		glTextureSubImage2D(id, level, x, y, wd, ht, comp, type, data);
-	else
-		glTexSubImage2D(target, level, x, y, wd, ht, comp, type, data);
-
-	if(auto_gen_mipmap && level==0)
-		generate_mipmap_();
-
-	if(!direct)
-		glBindTexture(target, 0);
+	Texture2DBackend::sub_image(level, x, y, wd, ht, data);
 }
 
-void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, PixelComponents comp, DataType type, const void *data)
+Texture2D::AsyncTransfer Texture2D::sub_image_async(unsigned level, unsigned x, unsigned y, unsigned wd, unsigned ht)
 {
-	if(comp!=get_components(format) || type!=get_component_type(format))
-		throw incompatible_data("Texture2D::sub_image");
-	sub_image(level, x, y, wd, ht, data);
+	return AsyncTransfer(*this, level, x, y, wd, ht);
 }
 
 void Texture2D::image(const Graphics::Image &img, unsigned lv)
 {
-	image(img, lv, false);
-}
-
-void Texture2D::image(const Graphics::Image &img, unsigned lv, bool from_buffer)
-{
-	unsigned w = img.get_width();
-	unsigned h = img.get_height();
-	PixelFormat fmt = pixelformat_from_image(img);
-	storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, h, lv);
-
-	image(0, from_buffer ? 0 : img.get_pixels());
-}
-
-unsigned Texture2D::get_n_levels() const
-{
-	unsigned n = 0;
-	for(unsigned s=max(width, height); s; s>>=1, ++n) ;
-	return n;
+	storage(pixelformat_from_image(img, use_srgb_format), img.get_width(), img.get_height(), lv);
+	image(0, img.get_pixels());
 }
 
 LinAl::Vector<unsigned, 2> Texture2D::get_level_size(unsigned level) const
@@ -225,24 +72,6 @@ LinAl::Vector<unsigned, 2> Texture2D::get_level_size(unsigned level) const
 	return LinAl::Vector<unsigned, 2>(w, h);
 }
 
-Resource::AsyncLoader *Texture2D::load(IO::Seekable &io, const Resources *)
-{
-	AsyncLoader *ldr = new AsyncLoader(*this, io);
-	return ldr;
-}
-
-UInt64 Texture2D::get_data_size() const
-{
-	return id ? width*height*get_pixel_size(format) : 0;
-}
-
-void Texture2D::unload()
-{
-	glDeleteTextures(1, &id);
-	id = 0;
-	allocated = 0;
-}
-
 
 Texture2D::Loader::Loader(Texture2D &t):
 	DataFile::DerivedObjectLoader<Texture2D, Texture::Loader>(t)
@@ -258,22 +87,10 @@ Texture2D::Loader::Loader(Texture2D &t, Collection &c):
 
 void Texture2D::Loader::init()
 {
-	add("raw_data", &Loader::raw_data);
 	add("storage", &Loader::storage);
 	add("storage", &Loader::storage_levels);
 }
 
-void Texture2D::Loader::raw_data(const string &data)
-{
-	if(obj.manager)
-	{
-		obj.set_manager(0);
-		if(!obj.id)
-			obj.generate_id();
-	}
-	obj.image(0, data.data());
-}
-
 void Texture2D::Loader::storage(PixelFormat fmt, unsigned w, unsigned h)
 {
 	obj.storage(fmt, w, h);
@@ -285,58 +102,58 @@ void Texture2D::Loader::storage_levels(PixelFormat fmt, unsigned w, unsigned h,
 }
 
 
-Texture2D::AsyncLoader::AsyncLoader(Texture2D &t, IO::Seekable &i):
-	texture(t),
-	io(i),
-	mapped_address(0),
-	img_loader(Graphics::ImageLoader::open_io(io)),
-	phase(0)
-{ }
-
-Texture2D::AsyncLoader::~AsyncLoader()
+Texture2D::AsyncTransfer::AsyncTransfer(Texture2D &t, unsigned l, unsigned x_, unsigned y_, unsigned wd, unsigned ht):
+	texture(&t),
+	level(l),
+	x(x_),
+	y(y_),
+	width(wd),
+	height(ht),
+	data_size(width*height*get_pixel_size(texture->storage_fmt)),
+	dest_addr(0)
 {
-	if(mapped_address)
-		pixel_buffer.unmap();
-	delete img_loader;
+	dest_addr = allocate();
 }
 
-bool Texture2D::AsyncLoader::needs_sync() const
+Texture2D::AsyncTransfer::AsyncTransfer(AsyncTransfer &&other):
+	Texture2DBackend::AsyncTransfer(move(other)),
+	texture(other.texture),
+	level(other.level),
+	x(other.x),
+	y(other.y),
+	width(other.width),
+	height(other.height),
+	data_size(other.data_size),
+	dest_addr(other.dest_addr)
 {
-	return phase%2;
+	other.dest_addr = 0;
 }
 
-bool Texture2D::AsyncLoader::process()
+Texture2D::AsyncTransfer &Texture2D::AsyncTransfer::operator=(AsyncTransfer &&other)
 {
-	if(phase==0)
-	{
-		image.load_headers(*img_loader);
-		n_bytes = image.get_stride()*image.get_height();
-	}
-	else if(phase==1)
-	{
-		pixel_buffer.storage(n_bytes);
-		mapped_address = reinterpret_cast<char *>(pixel_buffer.map());
-	}
-	else if(phase==2)
-		image.load_into(*img_loader, mapped_address);
-	else if(phase==3)
-	{
-		mapped_address = 0;
-		if(!pixel_buffer.unmap())
-		{
-			phase = 1;
-			return false;
-		}
+	if(dest_addr)
+		finalize();
 
-		if(!texture.id)
-			texture.generate_id();
-		glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pixel_buffer.get_id());
-		texture.image(image, 0, true);
-		glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
-	}
+	Texture2DBackend::AsyncTransfer::operator=(move(other));
 
-	++phase;
-	return phase>3;
+	texture = other.texture;
+	level = other.level;
+	x = other.x;
+	y = other.y;
+	width = other.width;
+	height = other.height;
+	data_size = other.data_size;
+	dest_addr = other.dest_addr;
+
+	other.dest_addr = 0;
+
+	return *this;
+}
+
+Texture2D::AsyncTransfer::~AsyncTransfer()
+{
+	if(dest_addr)
+		finalize();
 }
 
 } // namespace GL