X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Ftexture3d.cpp;h=e48b7662011deb9b1c81ce5c73014c939ace2c52;hp=03c58d0afdf05e6273cfbbea2892ea2d7e067ca9;hb=38712d8ecc57d043a2419ffbaeeb57f7a6586f14;hpb=7aaec9a70b8d7733429bec043f8e33e02956f266

diff --git a/source/core/texture3d.cpp b/source/core/texture3d.cpp
index 03c58d0a..e48b7662 100644
--- a/source/core/texture3d.cpp
+++ b/source/core/texture3d.cpp
@@ -1,13 +1,5 @@
 #include <cmath>
-#include <msp/core/raii.h>
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_texture_storage.h>
-#include <msp/gl/extensions/ext_texture3d.h>
-#include <msp/gl/extensions/ext_texture_array.h>
-#include <msp/graphics/image.h>
-#include "bindable.h"
 #include "error.h"
-#include "pixelstore.h"
 #include "texture3d.h"
 
 using namespace std;
@@ -15,28 +7,18 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-Texture3D::Texture3D(GLenum t):
-	Texture(t),
-	width(0),
-	height(0),
-	depth(0),
-	allocated(0)
+Texture3D::Texture3D(unsigned t):
+	Texture3DBackend(t)
 { }
 
-Texture3D::Texture3D():
-	Texture(GL_TEXTURE_3D),
-	width(0),
-	height(0),
-	depth(0),
-	allocated(0)
-{
-	static Require _req(EXT_texture3D);
-}
-
 void Texture3D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned dp, unsigned lv)
 {
 	if(width>0)
-		throw invalid_operation("Texture3D::storage");
+	{
+		if(fmt!=format || wd!=width || ht!=height || dp!=depth || (lv && lv!=levels))
+			throw incompatible_data("Texture3D::storage");
+		return;
+	}
 	if(wd==0 || ht==0 || dp==0)
 		throw invalid_argument("Texture3D::storage");
 
@@ -47,95 +29,24 @@ void Texture3D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned dp,
 	levels = get_n_levels();
 	if(lv>0)
 		levels = min(levels, lv);
-}
-
-void Texture3D::allocate(unsigned level)
-{
-	if(width==0 || height==0 || depth==0)
-		throw invalid_operation("Texture3D::allocate");
-	if(level>=levels)
-		throw invalid_argument("Texture3D::allocate");
-	if(allocated&(1<<level))
-		return;
 
-	if(ARB_texture_storage)
-	{
-		Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
-		if(ARB_direct_state_access)
-			glTextureStorage3D(id, levels, storage_fmt, width, height, depth);
-		else
-			glTexStorage3D(target, levels, storage_fmt, width, height, depth);
-		apply_swizzle();
-		allocated |= (1<<levels)-1;
-	}
-	else
-		image(level, 0);
+	allocate();
 }
 
 void Texture3D::image(unsigned level, const void *data)
 {
-	if(width==0 || height==0 || depth==0)
-		throw invalid_operation("Texture3D::image");
-
-	unsigned w = width;
-	unsigned h = height;
-	unsigned d = depth;
-	get_level_size(level, w, h, d);
-
-	if(ARB_texture_storage)
-		return sub_image(level, 0, 0, 0, w, h, d, data);
-
-	BindRestore _bind(this);
-
-	if(!allocated)
-	{
-		glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
-		apply_swizzle();
-	}
-
-	PixelComponents comp = get_components(storage_fmt);
-	DataType type = get_component_type(storage_fmt);
-	glTexImage3D(target, level, storage_fmt, width, height, depth, 0, comp, type, data);
-
-	allocated |= 1<<level;
-	if(auto_gen_mipmap && level==0)
-	{
-		generate_mipmap();
-		allocated |= (1<<levels)-1;
-	}
-}
-
-void Texture3D::image(unsigned level, PixelComponents comp, DataType type, const void *data)
-{
-	if(comp!=get_components(format) || type!=get_component_type(format))
-		throw incompatible_data("Texture3D::image");
-	image(level, data);
+	LinAl::Vector<unsigned, 3> size = get_level_size(level);
+	return sub_image(level, 0, 0, 0, size.x, size.y, size.z, data);
 }
 
 void Texture3D::sub_image(unsigned level, int x, int y, int z, unsigned wd, unsigned ht, unsigned dp, const void *data)
 {
 	if(width==0 || height==0 || depth==0)
-		throw invalid_operation("Texture3D::image");
-
-	Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
-	allocate(level);
-
-	PixelComponents comp = get_components(storage_fmt);
-	DataType type = get_component_type(storage_fmt);
-	if(ARB_direct_state_access)
-		glTextureSubImage3D(id, level, x, y, z, wd, ht, dp, comp, type, data);
-	else
-		glTexSubImage3D(target, level, x, y, z, wd, ht, dp, comp, type, data);
-
-	if(auto_gen_mipmap && level==0)
-		generate_mipmap();
-}
+		throw invalid_operation("Texture3D::sub_image");
+	if(level>=levels)
+		throw out_of_range("Texture3D::sub_image");
 
-void Texture3D::sub_image(unsigned level, int x, int y, int z, unsigned wd, unsigned ht, unsigned dp, PixelComponents comp, DataType type, const void *data)
-{
-	if(comp!=get_components(format) || type!=get_component_type(format))
-		throw incompatible_data("Texture3D::sub_image");
-	sub_image(level, x, y, z, wd, ht, dp, data);
+	Texture3DBackend::sub_image(level, x, y, z, wd, ht, dp, data);
 }
 
 void Texture3D::image(const Graphics::Image &img, unsigned lv)
@@ -148,33 +59,26 @@ void Texture3D::image(const Graphics::Image &img, unsigned lv)
 	unsigned d = h/w;
 	h = w;
 
-	PixelFormat fmt = pixelformat_from_image(img);
-	if(width==0)
-		storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, h, d, lv);
-	else if(w!=width || h!=height || d!=depth)
-		throw incompatible_data("Texture3D::load_image");
-
-	PixelStore pstore = PixelStore::from_image(img);
-	BindRestore _bind_ps(pstore);
-
+	storage(pixelformat_from_image(img, use_srgb_format), w, h, d, lv);
 	image(0, img.get_pixels());
 }
 
 unsigned Texture3D::get_n_levels() const
 {
 	unsigned s = max(width, height);
-	if(target!=GL_TEXTURE_2D_ARRAY)
+	if(!is_array())
 		s = max(s, depth);
 	unsigned n = 0;
 	for(; s; s>>=1, ++n) ;
 	return n;
 }
 
-void Texture3D::get_level_size(unsigned level, unsigned &w, unsigned &h, unsigned &d) const
+LinAl::Vector<unsigned, 3> Texture3D::get_level_size(unsigned level) const
 {
-	w >>= level;
-	h >>= level;
-	if(target!=GL_TEXTURE_2D_ARRAY)
+	unsigned w = width>>level;
+	unsigned h = height>>level;
+	unsigned d = depth;
+	if(!is_array())
 		d >>= level;
 
 	if(!w && (h || d))
@@ -183,9 +87,11 @@ void Texture3D::get_level_size(unsigned level, unsigned &w, unsigned &h, unsigne
 		h = 1;
 	if(!d && (w || h))
 		d = 1;
+
+	return LinAl::Vector<unsigned, 3>(w, h, d);
 }
 
-UInt64 Texture3D::get_data_size() const
+uint64_t Texture3D::get_data_size() const
 {
 	return id ? width*height*depth*get_pixel_size(storage_fmt) : 0;
 }