X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Ftexture1d.cpp;h=ce5d3727fad5f260d274a4694561b77e40abf07b;hp=7c3f02ab5f97988af099937eb6ed52254542b332;hb=HEAD;hpb=6065f6622cc275dc0b20baaf7c267e71169d18f3

diff --git a/source/core/texture1d.cpp b/source/core/texture1d.cpp
index 7c3f02ab..ce5d3727 100644
--- a/source/core/texture1d.cpp
+++ b/source/core/texture1d.cpp
@@ -1,6 +1,3 @@
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_texture_storage.h>
-#include <msp/gl/extensions/msp_texture1d.h>
 #include "error.h"
 #include "texture1d.h"
 
@@ -9,19 +6,11 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-Texture1D::Texture1D():
-	Texture(GL_TEXTURE_1D),
-	width(0),
-	allocated(0)
-{
-	static Require _req(MSP_texture1D);
-}
-
 void Texture1D::storage(PixelFormat fmt, unsigned wd, unsigned lv)
 {
 	if(width>0)
 	{
-		if(fmt!=format || wd!=width || (lv && lv!=levels))
+		if(fmt!=format || wd!=width || (lv && lv!=n_levels))
 			throw incompatible_data("Texture1D::storage");
 		return;
 	}
@@ -30,81 +19,26 @@ void Texture1D::storage(PixelFormat fmt, unsigned wd, unsigned lv)
 
 	set_format(fmt);
 	width = wd;
-	levels = get_n_levels();
+	n_levels = count_levels(width);
 	if(lv)
-		levels = min(levels, lv);
-}
-
-void Texture1D::allocate(unsigned level)
-{
-	if(width==0)
-		throw invalid_operation("Texture1D::allocate");
-	if(level>=levels)
-		throw invalid_argument("Texture1D::allocate");
-	if(allocated&(1<<level))
-		return;
+		n_levels = min(n_levels, lv);
 
-	if(ARB_texture_storage)
-	{
-		GLenum fmt = get_gl_pixelformat(storage_fmt);
-		if(ARB_direct_state_access)
-			glTextureStorage1D(id, levels, fmt, width);
-		else
-		{
-			bind_scratch();
-			glTexStorage1D(target, levels, fmt, width);
-		}
-		apply_swizzle();
-		allocated |= (1<<levels)-1;
-	}
-	else
-		image(level, 0);
+	allocate();
 }
 
 void Texture1D::image(unsigned level, const void *data)
 {
-	if(width==0)
-		throw invalid_operation("Texture1D::image");
-	if(level>=levels)
-		throw out_of_range("Texture1D::image");
-
-	if(ARB_texture_storage)
-		return sub_image(level, 0, get_level_size(level), data);
-
-	bind_scratch();
-
-	if(!allocated)
-	{
-		glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
-		apply_swizzle();
-	}
-
-	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));
-	glTexImage1D(target, level, fmt, get_level_size(level), 0, comp, type, data);
-
-	allocated |= 1<<level;
+	return sub_image(level, 0, get_level_size(level), data);
 }
 
-void Texture1D::sub_image(unsigned level, int x, unsigned wd, const void *data)
+void Texture1D::sub_image(unsigned level, unsigned x, unsigned wd, const void *data)
 {
 	if(width==0)
 		throw invalid_operation("Texture1D::sub_image");
-	if(level>=levels)
+	if(level>=n_levels || x>width || x+wd>width)
 		throw out_of_range("Texture1D::sub_image");
 
-	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)
-		glTextureSubImage1D(id, level, x, wd, comp, type, data);
-	else
-	{
-		bind_scratch();
-		glTexSubImage1D(target, level, x, wd, comp, type, data);
-	}
+	Texture1DBackend::sub_image(level, x, wd, data);
 }
 
 void Texture1D::image(const Graphics::Image &img, unsigned lv)
@@ -112,30 +46,15 @@ void Texture1D::image(const Graphics::Image &img, unsigned lv)
 	if(img.get_height()!=1)
 		throw incompatible_data("Texture1D::image");
 
-	unsigned w = img.get_width();
-	PixelFormat fmt = pixelformat_from_image(img);
-	storage(make_pixelformat(get_components(fmt), get_component_type(fmt), use_srgb_format), w, lv);
-
+	storage(pixelformat_from_image(img, use_srgb_format), img.get_width(), lv);
 	image(0, img.get_pixels());
 }
 
-unsigned Texture1D::get_n_levels() const
-{
-	unsigned n = 0;
-	for(unsigned s=width; s; s>>=1, ++n) ;
-	return n;
-}
-
 unsigned Texture1D::get_level_size(unsigned level) const
 {
 	return width>>level;
 }
 
-uint64_t Texture1D::get_data_size() const
-{
-	return id ? width*get_pixel_size(storage_fmt) : 0;
-}
-
 
 Texture1D::Loader::Loader(Texture1D &t):
 	DataFile::DerivedObjectLoader<Texture1D, Texture::Loader>(t)
@@ -151,16 +70,10 @@ Texture1D::Loader::Loader(Texture1D &t, Collection &c):
 
 void Texture1D::Loader::init()
 {
-	add("raw_data", &Loader::raw_data);
 	add("storage", &Loader::storage);
 	add("storage", &Loader::storage_levels);
 }
 
-void Texture1D::Loader::raw_data(const string &data)
-{
-	obj.image(0, data.data());
-}
-
 void Texture1D::Loader::storage(PixelFormat fmt, unsigned w)
 {
 	obj.storage(fmt, w);