Adding OpenGL Driver.

source/GfxDriver/OpenGL/OpenGLDrv.cpp

@@ -0,0 +1,53 @@
+
+#include "OpenGLDrv.h"
+#include <Graphics/GL/gl.h>
+
+namespace sp {
+
+std::string OpenGLDrv::getVendor() const
+{
+	char buf[512];
+
+	std::string prof = "Compability";
+	char *ver = (char*) glGetString(GL_VERSION);
+	char *ven = (char*) glGetString(GL_VENDOR);
+	char *ren = (char*) glGetString(GL_RENDERER);
+	GLint flags;
+
+	glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &flags);
+	if (flags & GL_CONTEXT_CORE_PROFILE_BIT) {
+		prof = "Core";
+	}
+
+	snprintf(buf, sizeof(buf), "OpenGL %s %s profile - %s %s", ver, prof.c_str(), ren, ven);
+
+	return std::string(buf);
+}
+
+void OpenGLDrv::setViewport(int x, int y, int width, int height)
+{
+	glViewport(x, y, width, height);
+}
+
+void OpenGLDrv::setClearColor(float r, float g, float b, float a)
+{
+	glClearColor(r, g, b, 1.0f);
+}
+
+void OpenGLDrv::clearBuffer(GfxDriver::BufferFlags flags)
+{
+	int glFlags = 0;
+
+	if (flags == GfxDriver::CLEAR_BUFFER_BIT) {
+		glFlags |= GL_COLOR_BUFFER_BIT;
+	}
+
+	glClear(glFlags);
+}
+
+void OpenGLDrv::clearColorBuffer()
+{
+	glClear(GL_COLOR_BUFFER_BIT);
+}
+
+} // namespace sp

source/GfxDriver/OpenGL/OpenGLDrv.h

@@ -0,0 +1,25 @@
+
+#ifndef SPECTRE_GFXDRIVER_OPENGL_OPENGLDRV_H
+#define SPECTRE_GFXDRIVER_OPENGL_OPENGLDRV_H
+
+#include <Spectre/GfxDriver/GfxDriver.h>
+
+namespace sp {
+
+class OpenGLDrv : public GfxDriver
+{
+public:
+	virtual std::string getVendor() const;
+
+	virtual void setViewport(int x, int y, int width, int height);
+
+	virtual void setClearColor(float r, float g, float b, float a);
+
+	virtual void clearBuffer(GfxDriver::BufferFlags flags);
+
+	virtual void clearColorBuffer();
+};
+
+} // namespace sp
+
+#endif /* SPECTRE_GFXDRIVER_GFXDRIVER_H */