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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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; either version 2 of the License, or
* any later version.
*
* The Mana World 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "graphics.h"
#include "resources/resourcemanager.h"
#include "main.h"
#include "log.h"
extern volatile int framesToDraw;
SDL_Surface *screen;
Graphics::Graphics()
{
if (useOpenGL) {
#ifdef USE_OPENGL
// Setup OpenGL
glViewport(0, 0, 800, 600);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
int gotDoubleBuffer;
SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &gotDoubleBuffer);
logger->log("Using OpenGL %s double buffering.",
(gotDoubleBuffer ? "with" : "without"));
setTargetPlane(800, 600);
#endif
}
else {
#ifndef USE_OPENGL
setTarget(SDL_GetVideoSurface());
#endif
}
// Initialize for drawing
_beginDraw();
}
Graphics::~Graphics()
{
// Deinitialize for drawing
_endDraw();
}
int Graphics::getWidth()
{
return screen->w;
}
int Graphics::getHeight()
{
return screen->h;
}
void Graphics::drawImage(Image *image, int x, int y)
{
image->draw_deprecated(screen, x, y);
}
void Graphics::drawImagePattern(Image *image, int x, int y, int w, int h)
{
int iw = image->getWidth();
int ih = image->getHeight();
if (iw == 0 || ih == 0) return;
int px = 0; // X position on pattern plane
int py = 0; // Y position on pattern plane
while (py < h) {
while (px < w) {
int dw = (px + iw >= w) ? w - px : iw;
int dh = (py + ih >= h) ? h - py : ih;
image->draw_deprecated(screen, 0, 0, x + px, y + py, dw, dh);
px += iw;
}
py += ih;
px = 0;
}
}
void Graphics::drawImageRect(
int x, int y, int w, int h,
Image *topLeft, Image *topRight,
Image *bottomLeft, Image *bottomRight,
Image *top, Image *right,
Image *bottom, Image *left,
Image *center)
{
// Draw the center area
drawImagePattern(center,
x + topLeft->getWidth(), y + topLeft->getHeight(),
w - topLeft->getWidth() - topRight->getWidth(),
h - topLeft->getHeight() - bottomLeft->getHeight());
// Draw the sides
drawImagePattern(top,
x + topLeft->getWidth(), y,
w - topLeft->getWidth() - topRight->getWidth(), top->getHeight());
drawImagePattern(bottom,
x + bottomLeft->getWidth(), y + h - bottom->getHeight(),
w - bottomLeft->getWidth() - bottomRight->getWidth(),
bottom->getHeight());
drawImagePattern(left,
x, y + topLeft->getHeight(),
left->getWidth(),
h - topLeft->getHeight() - bottomLeft->getHeight());
drawImagePattern(right,
x + w - right->getWidth(), y + topRight->getHeight(),
right->getWidth(),
h - topRight->getHeight() - bottomRight->getHeight());
// Draw the corners
drawImage(topLeft, x, y);
drawImage(topLeft, x, y);
drawImage(topRight, x + w - topRight->getWidth(), y);
drawImage(bottomLeft, x, y + h - bottomLeft->getHeight());
drawImage(bottomRight,
x + w - bottomRight->getWidth(),
y + h - bottomRight->getHeight());
}
void Graphics::drawImageRect(
int x, int y, int w, int h,
const ImageRect &imgRect)
{
drawImageRect(x, y, w, h,
imgRect.grid[0], imgRect.grid[2], imgRect.grid[6], imgRect.grid[8],
imgRect.grid[1], imgRect.grid[5], imgRect.grid[7], imgRect.grid[3],
imgRect.grid[4]);
}
void Graphics::updateScreen()
{
if (useOpenGL) {
#ifdef USE_OPENGL
glFlush();
glFinish();
SDL_GL_SwapBuffers();
#endif
}
else {
SDL_Flip(screen);
}
// Decrement frame counter when using framerate limiting
if (framesToDraw > 1) framesToDraw--;
// Wait while we're not allowed to draw next frame yet
while (framesToDraw == 1)
{
SDL_Delay(10);
}
}
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