X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Ftexture3d.cpp;h=9db8b06150b110a525e8569a9ee0074badef7f51;hb=33b6ca811172d402fc891eeed9cd2a5edc28d61d;hp=1681f83c6f528b949be627adb9fddf311556806a;hpb=efb45a6851563cdb8077b6aad3ab92d4006d8790;p=libs%2Fgl.git

diff --git a/source/core/texture3d.cpp b/source/core/texture3d.cpp
index 1681f83c..9db8b061 100644
--- a/source/core/texture3d.cpp
+++ b/source/core/texture3d.cpp
@@ -5,9 +5,7 @@
 #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;
@@ -36,7 +34,11 @@ Texture3D::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");
 
@@ -58,51 +60,77 @@ void Texture3D::allocate(unsigned level)
 	if(allocated&(1<<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 Texture3D::allocate_(unsigned level)
+{
 	if(ARB_texture_storage)
 	{
-		Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
+		GLenum fmt = get_gl_pixelformat(storage_fmt);
 		if(ARB_direct_state_access)
-			glTextureStorage3D(id, levels, storage_fmt, width, height, depth);
+			glTextureStorage3D(id, levels, fmt, width, height, depth);
 		else
-			glTexStorage3D(target, levels, storage_fmt, width, height, depth);
+			glTexStorage3D(target, levels, fmt, width, height, depth);
 		apply_swizzle();
 		allocated |= (1<<levels)-1;
 	}
 	else
-		image(level, 0);
+		image_(level, 0);
 }
 
 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(level>=levels)
+		throw out_of_range("Texture3D::image");
 
 	if(ARB_texture_storage)
-		return sub_image(level, 0, 0, 0, w, h, d, data);
+	{
+		LinAl::Vector<unsigned, 3> size = get_level_size(level);
+		return sub_image(level, 0, 0, 0, size.x, size.y, size.z, data);
+	}
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(target, id);
+
+	image_(level, data);
+
+	if(auto_gen_mipmap && level==0)
+	{
+		generate_mipmap_();
+		allocated |= (1<<levels)-1;
+	}
 
-	BindRestore _bind(this);
+	glBindTexture(target, 0);
+}
 
+void Texture3D::image_(unsigned level, const void *data)
+{
 	if(!allocated)
 	{
 		glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
 		apply_swizzle();
 	}
 
-	PixelComponents comp = get_components(storage_fmt);
+	LinAl::Vector<unsigned, 3> size = 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));
-	glTexImage3D(target, level, storage_fmt, width, height, depth, 0, comp, type, data);
+	glTexImage3D(target, level, fmt, size.x, size.y, size.z, 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)
@@ -115,12 +143,20 @@ void Texture3D::image(unsigned level, PixelComponents comp, DataType type, const
 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");
+		throw invalid_operation("Texture3D::sub_image");
+	if(level>=levels)
+		throw out_of_range("Texture3D::sub_image");
 
-	Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
-	allocate(level);
+	bool direct = (ARB_direct_state_access && (ARB_texture_storage || (allocated&(1<<level))));
+	if(!direct)
+	{
+		glActiveTexture(GL_TEXTURE0);
+		glBindTexture(target, id);
+	}
 
-	PixelComponents comp = get_components(storage_fmt);
+	allocate_(level);
+
+	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, z, wd, ht, dp, comp, type, data);
@@ -128,7 +164,10 @@ void Texture3D::sub_image(unsigned level, int x, int y, int z, unsigned wd, unsi
 		glTexSubImage3D(target, level, x, y, z, wd, ht, dp, comp, type, data);
 
 	if(auto_gen_mipmap && level==0)
-		generate_mipmap();
+		generate_mipmap_();
+
+	if(!direct)
+		glBindTexture(target, 0);
 }
 
 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)
@@ -149,13 +188,7 @@ void Texture3D::image(const Graphics::Image &img, unsigned lv)
 	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(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, h, d, lv);
 
 	image(0, img.get_pixels());
 }
@@ -170,10 +203,11 @@ unsigned Texture3D::get_n_levels() const
 	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;
+	unsigned w = width>>level;
+	unsigned h = height>>level;
+	unsigned d = depth;
 	if(target!=GL_TEXTURE_2D_ARRAY)
 		d >>= level;
 
@@ -183,6 +217,8 @@ 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