dolphin/Source/Plugins/Plugin_VideoOGL/Src/XFB.cpp

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// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program 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 General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// Preliminary non-working code.
#include "Globals.h"
#include "Render.h"
#include "TextureMngr.h"
#include "XFBConvert.h"
enum {
XFB_WIDTH = 640,
XFB_HEIGHT = 480,
};
static GLuint xfb_texture;
static u8 *xfb_buffer;
void XFB_Init()
{
xfb_buffer = new u8[XFB_WIDTH * XFB_HEIGHT * 4];
memset(xfb_buffer, 0, XFB_WIDTH * XFB_HEIGHT * 4);
glGenTextures(1, &xfb_texture);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, xfb_texture);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, XFB_WIDTH, XFB_HEIGHT, 0, GL_BGRA, GL_UNSIGNED_BYTE, xfb_buffer);
}
void XFB_Draw(u8 *xfb_in_ram)
{
Renderer::ResetGLState();
ConvertXFB((u32 *)xfb_buffer, xfb_in_ram, XFB_WIDTH, XFB_HEIGHT);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, xfb_texture);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, 4, XFB_WIDTH, XFB_HEIGHT, 0, GL_BGRA, GL_UNSIGNED_BYTE, xfb_buffer);
TextureMngr::EnableTexRECT(0);
for (int i = 1; i < 8; ++i)
TextureMngr::DisableStage(i);
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(-1,-1);
glTexCoord2f(0, XFB_WIDTH); glVertex2f(-1,1);
glTexCoord2f(XFB_WIDTH, XFB_HEIGHT); glVertex2f(1,1);
glTexCoord2f(XFB_WIDTH, 0); glVertex2f(1,-1);
glEnd();
Renderer::RestoreGLState();
}
void XFB_Shutdown()
{
glDeleteTextures(1, &xfb_texture);
xfb_texture = 0;
delete [] xfb_buffer;
xfb_buffer = 0;
}