X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture1d.cpp;h=7466a9efa2bc0d0fb3ef9b48f2330bb8499b59cf;hp=78c9ed0c54209a067c51516126b797289ddb82d4;hb=639238c53510fb9483e92fb1b808d33fce992bff;hpb=49323eea600fb989d4181ccfd437ee12722ae733

diff --git a/source/texture1d.cpp b/source/texture1d.cpp
index 78c9ed0c..7466a9ef 100644
--- a/source/texture1d.cpp
+++ b/source/texture1d.cpp
@@ -1,3 +1,6 @@
+#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/msp_texture1d.h>
 #include "bindable.h"
 #include "error.h"
@@ -10,35 +13,51 @@ namespace GL {
 
 Texture1D::Texture1D():
 	Texture(GL_TEXTURE_1D),
-	ifmt(RGB),
 	width(0),
 	allocated(0)
 {
 	static Require _req(MSP_texture1D);
 }
 
-void Texture1D::storage(PixelFormat fmt, unsigned wd)
+void Texture1D::storage(PixelFormat fmt, unsigned wd, unsigned lv)
 {
 	if(width>0)
 		throw invalid_operation("Texture1D::storage");
 	if(wd==0)
 		throw invalid_argument("Texture1D::storage");
 
-	if(MSP_sized_internal_formats)
-		fmt = get_sized_pixelformat(fmt);
-	require_pixelformat(fmt);
-
-	ifmt = fmt;
+	set_internal_format(fmt);
 	width = wd;
+	levels = get_n_levels();
+	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;
 
-	PixelFormat base_fmt = get_base_pixelformat(ifmt);
-	image(level, base_fmt, get_alloc_type(base_fmt), 0);
+	if(ARB_texture_storage)
+	{
+		if(ARB_direct_state_access)
+			glTextureStorage1D(id, levels, ifmt, width);
+		else
+		{
+			BindRestore _bind(this);
+			glTexStorage1D(target, levels, ifmt, width);
+		}
+		allocated |= (1<<levels)-1;
+	}
+	else
+	{
+		PixelFormat base_fmt = get_base_pixelformat(ifmt);
+		image(level, base_fmt, get_alloc_type(base_fmt), 0);
+	}
 }
 
 void Texture1D::image(unsigned level, PixelFormat fmt, DataType type, const void *data)
@@ -48,15 +67,17 @@ void Texture1D::image(unsigned level, PixelFormat fmt, DataType type, const void
 
 	unsigned w = get_level_size(level);
 
+	if(ARB_texture_storage)
+		return sub_image(level, 0, w, fmt, type, data);
+
 	BindRestore _bind(this);
-	glTexImage1D(target, level, ifmt, w, 0, fmt, type, data);
+	glTexImage1D(target, level, ifmt, w, 0, get_upload_format(fmt), type, data);
 
 	allocated |= 1<<level;
 	if(gen_mipmap && level==0)
 	{
 		auto_generate_mipmap();
-		for(; w; w>>=1, ++level) ;
-		allocated |= (1<<level)-1;
+		allocated |= (1<<get_n_levels())-1;
 	}
 }
 
@@ -65,10 +86,17 @@ void Texture1D::sub_image(unsigned level, int x, unsigned wd, PixelFormat fmt, D
 	if(width==0)
 		throw invalid_operation("Texture3D::image");
 
+	Conditional<BindRestore> _bind(!ARB_direct_state_access, this);
 	allocate(level);
 
-	BindRestore _bind(this);
-	glTexSubImage1D(target, level, x, wd, fmt, type, data);
+	fmt = get_upload_format(fmt);
+	if(ARB_direct_state_access)
+		glTextureSubImage1D(id, level, x, wd, fmt, type, data);
+	else
+		glTexSubImage1D(target, level, x, wd, fmt, type, data);
+
+	if(gen_mipmap && level==0)
+		auto_generate_mipmap();
 }
 
 void Texture1D::image(const Graphics::Image &img, bool srgb)
@@ -79,14 +107,24 @@ void Texture1D::image(const Graphics::Image &img, bool srgb)
 	unsigned w = img.get_width();
 	PixelFormat fmt = pixelformat_from_graphics(img.get_format());
 	if(width==0)
-		storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w);
+	{
+		unsigned l = (is_mipmapped(min_filter) ? mipmap_levels ? mipmap_levels : 0 : 1);
+		storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w, l);
+	}
 	else if(w!=width)
 		throw incompatible_data("Texture1D::image");
 
 	image(0, fmt, UNSIGNED_BYTE, img.get_data());
 }
 
-unsigned Texture1D::get_level_size(unsigned level)
+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;
 }