Style update: add spaces around assignment operators

[libs/gl.git] / source / shader.cpp

diff --git a/source/shader.cpp b/source/shader.cpp
index 61c2f0e56b0e7125bed8df5f0d9dad32c6ce736e..5ff2eb3609bd33a6fe1b30ae00eecd145f209a1f 100644 (file)
--- a/source/shader.cpp
+++ b/source/shader.cpp
@@ -5,7 +5,9 @@ Copyright © 2007 Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
 
-#define GL_GLEXT_PROTOTYPES
+#include "arb_shader_objects.h"
+#include "except.h"
+#include "extension.h"
 #include "shader.h"
 
 using namespace std;
@@ -13,27 +15,39 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-Shader::Shader(ShaderType t):
-       id(glCreateShader(t)),
-       compiled(false)
-{ }
+Shader::Shader(ShaderType t)
+{
+       init(t);
+}
 
-Shader::Shader(ShaderType t, const string &src):
-       id(glCreateShader(t)),
-       compiled(false)
+Shader::Shader(ShaderType t, const string &src)
 {
+       init(t);
+
        source(src);
        compile();
 }
 
+void Shader::init(ShaderType t)
+{
+       compiled = false;
+
+       if(t==FRAGMENT_SHADER)
+               static RequireExtension _ext("GL_ARB_fragment_shader");
+       else if(t==VERTEX_SHADER)
+               static RequireExtension _ext("GL_ARB_vertex_shader");
+
+       id = glCreateShaderObjectARB(t);
+}
+
 Shader::~Shader()
 {
-       glDeleteShader(id);
+       glDeleteObjectARB(id);
 }
 
-void Shader::source(sizei count, const char **str, const int *len)
+void Shader::source(unsigned count, const char **str, const int *len)
 {
-       glShaderSource(id, count, str, len);
+       glShaderSourceARB(id, count, str, len);
 }
 
 void Shader::source(const string &str)
@@ -46,25 +60,25 @@ void Shader::source(const char *str, int len)
        source(1, &str, &len);
 }
 
-bool Shader::compile()
+void Shader::compile()
 {
-       glCompileShader(id);
-       compiled=get_param(GL_COMPILE_STATUS);
-       return compiled;
+       glCompileShaderARB(id);
+       if(!(compiled = get_param(GL_COMPILE_STATUS)))
+               throw CompileError(get_info_log());
 }
 
 int Shader::get_param(GLenum param) const
 {
        int value;
-       glGetShaderiv(id, param, &value);
+       glGetObjectParameterivARB(id, param, &value);
        return value;
 }
 
 string Shader::get_info_log() const
 {
-       sizei len=get_param(GL_INFO_LOG_LENGTH);
+       GLsizei len = get_param(GL_INFO_LOG_LENGTH);
        char log[len+1];
-       glGetShaderInfoLog(id, len+1, reinterpret_cast<GLsizei *>(&len), log);
+       glGetInfoLogARB(id, len+1, &len, log);
        return string(log, len);
 }