X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbloom.cpp;h=286730b9c599a782e05ed04faa9294031f5fbfa4;hb=d16abe533233dc15810fe6bdf4a873d36eefc5dc;hp=76460b993885cb7f71162d22fe32b306ad650495;hpb=2e7f19b895424c3a77940e648639f8df2b395d0f;p=libs%2Fgl.git

diff --git a/source/bloom.cpp b/source/bloom.cpp
index 76460b99..286730b9 100644
--- a/source/bloom.cpp
+++ b/source/bloom.cpp
@@ -2,8 +2,8 @@
 #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"
 
@@ -11,14 +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"
@@ -32,14 +24,6 @@ static const char blur_fs[]=
 	"		gl_FragColor += texture2D(source, texcoord+delta*float(i-size))*factors[i];\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"
-	"}";
-
 static const char combine_fs[]=
 	"uniform sampler2D source;\n"
 	"uniform sampler2D blurred;\n"
@@ -56,23 +40,29 @@ namespace Msp {
 namespace GL {
 
 Bloom::Bloom(unsigned w, unsigned h):
-	blur_shader(blur_vs, blur_fs),
-	blur_shdata_common(blur_shader),
-	blur_shdata_x(blur_shader),
-	blur_shdata_y(blur_shader),
-	combine_shader(combine_vs, combine_fs),
-	combine_shdata(combine_shader),
-	quad(VERTEX2)
+	quad(get_fullscreen_quad())
 {
-	int loc = blur_shader.get_uniform_location("delta");
-	blur_shdata_x.uniform(loc, 1.0f/w, 0.0f);
-	blur_shdata_y.uniform(loc, 0.0f, 1.0f/h);
+	blur_shader.attach_shader(get_fullscreen_vertex_shader());
+	blur_shader.attach_shader_owned(new FragmentShader(blur_fs));
+	blur_shader.bind_attribute(get_component_type(VERTEX2), "vertex");
+	blur_shader.link();
+
+	combine_shader.attach_shader(get_fullscreen_vertex_shader());
+	combine_shader.attach_shader_owned(new FragmentShader(combine_fs));
+	combine_shader.bind_attribute(get_component_type(VERTEX2), "vertex");
+	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)
 	{
 		tex[i].set_min_filter(NEAREST);
+		tex[i].set_wrap(CLAMP_TO_EDGE);
 		tex[i].storage(RGB16F, w, h);
+		fbo[i].attach(COLOR_ATTACHMENT0, tex[i], 0);
+		fbo[i].require_complete();
 	}
 
 	combine_shdata.uniform("source", 1);
@@ -82,20 +72,12 @@ Bloom::Bloom(unsigned w, unsigned h):
 
 	set_radius(2.0f);
 	set_strength(0.2f);
-
-	MeshBuilder mbld(quad);
-	mbld.begin(TRIANGLE_STRIP);
-	mbld.vertex(0, 1);
-	mbld.vertex(0, 0);
-	mbld.vertex(1, 1);
-	mbld.vertex(1, 0);
-	mbld.end();
 }
 
 void Bloom::set_radius(float r)
 {
 	if(r<=0.0f)
-		throw out_of_range("Bloom::set_radius");
+		throw invalid_argument("Bloom::set_radius");
 
 	int size = min(static_cast<int>(r*3.0f), 9);
 	blur_shdata_common.uniform("size", size);
@@ -105,32 +87,33 @@ void Bloom::set_radius(float r)
 	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)
-		blur_shdata_common.uniform(format("factors[%d]", i), factors[i]/sum);
+		factors[i] /= sum;
+
+	blur_shdata_common.uniform1_array("factors", size*2+1, &factors.front());
 }
 
 void Bloom::set_strength(float s)
 {
 	if(s<0.0f || s>1.0f)
-		throw out_of_range("Bloom::set_strength");
+		throw invalid_argument("Bloom::set_strength");
 	combine_shdata.uniform("strength", s);
 }
 
 void Bloom::render(const Texture2D &src, const Texture2D &)
 {
-	Bind unbind_dtest(static_cast<DepthTest *>(0), true);
-	Bind unbind_blend(static_cast<Blend *>(0), true);
+	BindRestore unbind_dtest(static_cast<DepthTest *>(0));
+	BindRestore unbind_blend(static_cast<Blend *>(0));
+	Bind bind_mesh(quad);
 
 	{
 		Bind bind_shader(blur_shader);
 		blur_shdata_common.apply();
-		Bind bind_fbo(fbo, true);
 		for(unsigned i=0; i<2; ++i)
 		{
+			BindRestore bind_fbo(fbo[i]);
 			Bind bind_tex(i ? tex[0] : src);
-			fbo.attach(COLOR_ATTACHMENT0, tex[i], 0);
-			(i ? blur_shdata_y : blur_shdata_x).apply();
+			blur_shdata[i].apply();
 			quad.draw();
 		}
 	}