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/*
Copyright (C) 2010 Andrew Caudwell (acaudwell@gmail.com)
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; either version
3 of the License, or (at your option) any later version.
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 for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gource_shell.h"
// GourceShell
GourceShell::GourceShell(ConfFile* conf, FrameExporter* exporter) {
this->conf = conf;
this->exporter = exporter;
next = false;
gource = 0;
gource_settings = conf->getSections("gource")->begin();
gGourceSettings.repo_count = conf->countSection("gource");
transition_texture = 0;
transition_interval = 0.0f;
if(strstr((const char *)glGetString(GL_EXTENSIONS), "GL_ARB_texture_non_power_of_two" )) {
transition_texture = display.emptyTexture(display.width, display.height, GL_RGBA);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
}
GourceShell::~GourceShell() {
if(gource!=0) delete gource;
if(transition_texture!=0) glDeleteTextures(1, &transition_texture);
}
void GourceShell::keyPress(SDL_KeyboardEvent *e) {
//Quit demo if the user presses ESC
if (e->type == SDL_KEYDOWN) {
if (e->keysym.unicode == SDLK_ESCAPE) {
appFinished=true;
}
if (e->keysym.unicode == SDLK_RETURN) {
if(gGourceSettings.repo_count>1)
next = true;
}
}
if(gource!=0) gource->keyPress(e);
}
void GourceShell::mouseMove(SDL_MouseMotionEvent *e) {
if(gource!=0) gource->mouseMove(e);
}
void GourceShell::mouseClick(SDL_MouseButtonEvent *e) {
if(gource!=0) gource->mouseClick(e);
}
Gource* GourceShell::getNext() {
if(gource!=0) {
delete gource;
gource = 0;
transition_interval = 1.0f;
}
if(gource_settings == conf->getSections("gource")->end()) {
return 0;
}
gGourceSettings.importGourceSettings(*conf, *gource_settings);
//recording a video kind of implies you want this, unless:
// -- dont stop requested
// -- loop requested
// -- reading from STDIN
if(exporter!=0 && !(gGourceSettings.dont_stop || gGourceSettings.loop || gGourceSettings.path == "-"))
gGourceSettings.stop_at_end = true;
//multiple repo special settings
if(gGourceSettings.repo_count > 1) {
//set a stop condition
if(gGourceSettings.stop_at_time <= 0.0f && gGourceSettings.stop_position <= 0.0f) {
gGourceSettings.stop_at_time = 60.0f;
}
}
gource_settings++;
//loop unless only 1 repo
if(gource_settings == conf->getSections("gource")->end()) {
if(gGourceSettings.repo_count>1 && exporter==0) {
gource_settings = conf->getSections("gource")->begin();
}
}
Gource* gource = new Gource(exporter);
next = false;
return gource;
}
void GourceShell::blendLastFrame(float dt) {
if(transition_texture==0 || transition_interval <= 0.0f) return;
display.mode2D();
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, transition_texture);
glColor4f(1.0, 1.0, 1.0, transition_interval);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 1.0f);
glVertex2f(0.0f, 0.0);
glTexCoord2f(1.0, 1.0f);
glVertex2f(display.width, 0.0);
glTexCoord2f(1.0, 0.0f);
glVertex2f(display.width, display.height);
glTexCoord2f(0.0f, 0.0f);
glVertex2f(0.0f, display.height);
glEnd();
transition_interval -= dt;
}
void GourceShell::update(float t, float dt) {
if(gource == 0 || gource->isFinished()) {
gource = getNext();
if(gource==0) appFinished=true;
return;
}
gource->fps = this->fps;
gource->update(t, dt);
//copy last frame
if( (next|| gource->isFinished()) && transition_texture!=0) {
display.renderToTexture(transition_texture, display.width, display.height, GL_RGBA);
} else {
//blend last frame of previous scene
blendLastFrame(dt);
}
if(next) {
delete gource;
gource = 0;
transition_interval = 1.0f;
next = false;
}
}
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