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/***************************************************************************
* Copyright (C) 2005-2013 by the FIFE team *
* http://www.fifengine.net *
* This file is part of FIFE. *
* *
* FIFE 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 Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
// Standard C++ library includes
// 3rd party library includes
// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "renderbackend.h"
#include "video/devicecaps.h"
namespace FIFE {
RenderBackend::RenderBackend(const SDL_Color& colorkey):
m_screen(NULL),
m_target(NULL),
m_compressimages(false),
m_useframebuffer(false),
m_usenpot(false),
m_isalphaoptimized(false),
m_iscolorkeyenabled(false),
m_colorkey(colorkey),
m_isframelimit(false),
m_framelimit(60) {
m_isbackgroundcolor = false;
m_backgroundcolor.r = 0;
m_backgroundcolor.g = 0;
m_backgroundcolor.b = 0;
}
RenderBackend::~RenderBackend() {
}
void RenderBackend::deinit() {
//delete m_screen;
//m_screen = NULL;
SDL_QuitSubSystem(SDL_INIT_VIDEO);
SDL_Quit();
}
void RenderBackend::startFrame() {
if (m_isframelimit) {
m_frame_start = SDL_GetTicks();
}
}
void RenderBackend::endFrame () {
if (m_isframelimit) {
uint16_t frame_time = SDL_GetTicks() - m_frame_start;
const float frame_limit = 1000.0f/m_framelimit;
if (frame_time < frame_limit) {
SDL_Delay(static_cast<Uint32>(frame_limit) - frame_time);
}
}
}
const ScreenMode& RenderBackend::getCurrentScreenMode() const{
return m_screenMode;
}
uint32_t RenderBackend::getWidth() const {
return m_screen->w;
}
uint32_t RenderBackend::getHeight() const {
return m_screen->h;
}
const Rect& RenderBackend::getArea() const {
static Rect r(0, 0, m_screen->w, m_screen->h);
return r;
}
void RenderBackend::pushClipArea(const Rect& cliparea, bool clear) {
ClipInfo ci;
ci.r = cliparea;
ci.clearing = clear;
m_clipstack.push(ci);
setClipArea(cliparea, clear);
}
void RenderBackend::popClipArea() {
assert(!m_clipstack.empty());
m_clipstack.pop();
if (m_clipstack.empty()) {
setClipArea(getArea(), false);
} else {
ClipInfo ci = m_clipstack.top();
// instead of using ci.clearing, we set it to false
// to avoid double clearing
setClipArea(ci.r, false);
}
}
const Rect& RenderBackend::getClipArea() const {
if (!m_clipstack.empty()) {
return m_clipstack.top().r;
} else {
return getArea();
}
}
void RenderBackend::clearClipArea() {
setClipArea(getArea(), true);
}
void RenderBackend::setColorKeyEnabled(bool colorkeyenable) {
m_iscolorkeyenabled = colorkeyenable;
}
bool RenderBackend::isColorKeyEnabled() const {
return m_iscolorkeyenabled;
}
void RenderBackend::setColorKey(const SDL_Color& colorkey) {
m_colorkey = colorkey;
}
const SDL_Color& RenderBackend::getColorKey() const {
return m_colorkey;
}
void RenderBackend::setBackgroundColor(uint8_t r, uint8_t g, uint8_t b) {
if (r != m_backgroundcolor.r || g != m_backgroundcolor.g || b != m_backgroundcolor.b) {
m_isbackgroundcolor = true;
m_backgroundcolor.r = r;
m_backgroundcolor.g = g;
m_backgroundcolor.b = b;
}
}
void RenderBackend::resetBackgroundColor() {
setBackgroundColor(0,0,0);
}
const SDL_PixelFormat& RenderBackend::getPixelFormat() const {
return m_rgba_format;
}
void RenderBackend::setFrameLimitEnabled(bool limited) {
m_isframelimit = limited;
}
bool RenderBackend::isFrameLimitEnabled() const {
return m_isframelimit;
}
void RenderBackend::setFrameLimit(uint16_t framelimit) {
m_framelimit = framelimit;
}
uint16_t RenderBackend::getFrameLimit() const {
return m_framelimit;
}
SDL_Surface* RenderBackend::getRenderTargetSurface() {
return m_target;
}
}
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