view src/video/qnxgf/SDL_gf_opengles.c @ 3473:7bdc10624cba

This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +0000
parents 7f684f249ec9
children f7b03b6838cb
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org

    QNX Graphics Framework SDL driver
    Copyright (C) 2009 Mike Gorchak
    (mike@malva.ua, lestat@i.com.ua)
*/

#include <GLES/gl.h>
#include <GLES/glext.h>

/* This is OpenGL ES 1.0 helper functions from OpenGL ES 1.1 specification,  */
/* which could be implemented independently from hardware, just wrappers     */

GLAPI void APIENTRY
glTexParameteri(GLenum target, GLenum pname, GLint param)
{
    glTexParameterx(target, pname, (GLfixed) param);
    return;
}

GLAPI void APIENTRY
glTexParameteriv(GLenum target, GLenum pname, const GLint * params)
{
    /* Retrieve one parameter only */
    glTexParameterx(target, pname, (GLfixed) * params);
    return;
}

GLAPI void APIENTRY
glColor4ub(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha)
{
    glColor4f(((GLfloat) red) / 255.f, ((GLfloat) green) / 255.f,
              ((GLfloat) blue) / 255.f, ((GLfloat) alpha) / 255.f);
    return;
}