X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbloom.cpp;h=8a6ddbcd73b9ebda371518ded5a4a96502c5d5e8;hb=ab83db6f1e31d44ced585119a57fd10896e469cb;hp=db10c3b26fc45b3c7b0c28ba4c51687ef964a13d;hpb=c216893af147042e40c389e2530e71277c343044;p=libs%2Fgl.git

diff --git a/source/bloom.cpp b/source/bloom.cpp
index db10c3b2..8a6ddbcd 100644
--- a/source/bloom.cpp
+++ b/source/bloom.cpp
@@ -1,16 +1,9 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <cmath>
-#include <msp/strings/formatter.h>
+#include <msp/strings/format.h>
 #include "blend.h"
 #include "bloom.h"
-#include "meshbuilder.h"
 #include "misc.h"
+#include "shader.h"
 #include "tests.h"
 #include "texunit.h"
 
@@ -18,14 +11,6 @@ using namespace std;
 
 namespace {
 
-static const char blur_vs[]=
-	"varying vec2 texcoord;\n"
-	"void main()\n"
-	"{\n"
-	"	gl_Position = vec4(gl_Vertex.xy*2.0-1.0, 0.0, 1.0);\n"
-	"	texcoord = gl_Vertex.xy;\n"
-	"}";
-
 static const char blur_fs[]=
 	"uniform sampler2D source;\n"
 	"uniform vec2 delta;\n"
@@ -35,16 +20,8 @@ static const char blur_fs[]=
 	"void main()\n"
 	"{\n"
 	"	gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);\n"
-	"	for(int i=-size; i<=size; ++i)\n"
-	"		gl_FragColor += texture2D(source, texcoord+delta*i)*factors[i+size];\n"
-	"}";
-
-static const char combine_vs[]=
-	"varying vec2 texcoord;\n"
-	"void main()\n"
-	"{\n"
-	"	gl_Position = vec4(gl_Vertex.xy*2.0-1.0, 0.0, 1.0);\n"
-	"	texcoord = gl_Vertex.xy;\n"
+	"	for(int i=0; i<=size*2; ++i)\n"
+	"		gl_FragColor += texture2D(source, texcoord+delta*float(i-size))*factors[i];\n"
 	"}";
 
 static const char combine_fs[]=
@@ -63,97 +40,84 @@ namespace Msp {
 namespace GL {
 
 Bloom::Bloom(unsigned w, unsigned h):
-	blur_shader(blur_vs, blur_fs),
-	combine_shader(combine_vs, combine_fs),
-	quad(VERTEX2)
+	quad(get_fullscreen_quad())
 {
-	int loc = blur_shader.get_uniform_location("delta");
-	blur_shdata[0].uniform(loc, 1.0f/w, 0.0f);
-	blur_shdata[1].uniform(loc, 0.0f, 1.0f/h);
+	blur_shader.attach_shader(get_fullscreen_vertex_shader());
+	blur_shader.attach_shader_owned(new Shader(FRAGMENT_SHADER, blur_fs));
+	blur_shader.link();
 
-	loc = blur_shader.get_uniform_location("source");
+	combine_shader.attach_shader(get_fullscreen_vertex_shader());
+	combine_shader.attach_shader_owned(new Shader(FRAGMENT_SHADER, combine_fs));
+	combine_shader.link();
+
+	blur_shdata[0].uniform("delta", 1.0f/w, 0.0f);
+	blur_shdata[1].uniform("delta", 0.0f, 1.0f/h);
+
+	blur_shdata_common.uniform("source", 0);
 	for(unsigned i=0; i<2; ++i)
 	{
-		blur_shdata[i].uniform(loc, 0);
 		tex[i].set_min_filter(NEAREST);
 		tex[i].storage(RGB16F, w, h);
 	}
 
-	combine_shdata.uniform(combine_shader.get_uniform_location("source"), 1);
-	combine_shdata.uniform(combine_shader.get_uniform_location("blurred"), 0);
+	combine_shdata.uniform("source", 1);
+	combine_shdata.uniform("blurred", 0);
+
+	combine_texturing.attach(0, tex[1]);
 
 	set_radius(2.0f);
 	set_strength(0.2f);
-
-	MeshBuilder mbld(quad);
-	mbld.begin(QUADS);
-	mbld.vertex(0, 0);
-	mbld.vertex(1, 0);
-	mbld.vertex(1, 1);
-	mbld.vertex(0, 1);
-	mbld.end();
 }
 
 void Bloom::set_radius(float r)
 {
 	if(r<=0.0f)
-		throw InvalidParameterValue("Radius must be positive");
+		throw out_of_range("Bloom::set_radius");
 
 	int size = min(static_cast<int>(r*3.0f), 9);
-	int loc = blur_shader.get_uniform_location("size");
-	blur_shdata[0].uniform(loc, size);
-	blur_shdata[1].uniform(loc, size);
+	blur_shdata_common.uniform("size", size);
 
 	vector<float> factors(size*2+1);
 	float sum = 0.0f;
 	r = 2*r*r;
 	for(int i=-size; i<=size; ++i)
 		sum += (factors[size+i] = exp(-i*i/r));
-
 	for(int i=0; i<=size*2; ++i)
-	{
-		loc = blur_shader.get_uniform_location(format("factors[%d]", i));
-		float f = factors[i]/sum;
-		blur_shdata[0].uniform(loc, f);
-		blur_shdata[1].uniform(loc, f);
-	}
+		factors[i] /= sum;
+
+	blur_shdata_common.uniform1_array("factors[0]", size*2+1, &factors.front());
 }
 
 void Bloom::set_strength(float s)
 {
 	if(s<0.0f || s>1.0f)
-		throw InvalidParameterValue("Strength must be in the range [0.0, 1.0]");
-	combine_shdata.uniform(combine_shader.get_uniform_location("strength"), s);
+		throw out_of_range("Bloom::set_strength");
+	combine_shdata.uniform("strength", s);
 }
 
 void Bloom::render(const Texture2D &src, const Texture2D &)
 {
-	const Framebuffer *dest = Framebuffer::current();
-	blur_shader.bind();
-	fbo.bind();
-	src.bind_to(0);
 	Bind unbind_dtest(static_cast<DepthTest *>(0), true);
 	Bind unbind_blend(static_cast<Blend *>(0), true);
-	for(unsigned i=0; i<2; ++i)
+
 	{
-		fbo.attach(COLOR_ATTACHMENT0, tex[i], 0);
-		blur_shdata[i].apply();
-		quad.draw();
-		tex[i].bind_to(0);
+		Bind bind_shader(blur_shader);
+		blur_shdata_common.apply();
+		Bind bind_fbo(fbo, true);
+		for(unsigned i=0; i<2; ++i)
+		{
+			Bind bind_tex(i ? tex[0] : src);
+			fbo.attach(COLOR_ATTACHMENT0, tex[i], 0);
+			blur_shdata[i].apply();
+			quad.draw();
+		}
 	}
 
-	if(dest)
-		dest->bind();
-	else
-		Framebuffer::unbind();
-
-	combine_shader.bind();
+	combine_texturing.attach(1, src);
+	Bind bind_texturing(combine_texturing);
+	Bind bind_shader(combine_shader);
 	combine_shdata.apply();
-	src.bind_to(1);
 	quad.draw();
-	Program::unbind();
-	Texture::unbind_from(1);
-	Texture::unbind_from(0);
 }
 
 } // namespace GL