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//
// Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
//
// 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, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#include "sdl_ogl_glue.h"
#include "tu_opengl_includes.h"
#include "SDL.h"
#include "log.h"
#define OVERSIZE 1.0f
using namespace std;
namespace gnash
{
SdlOglGlue::SdlOglGlue()
#ifdef FIX_I810_LOD_BIAS
: _tex_lod_bias(-1.2f)
#endif
{
// GNASH_REPORT_FUNCTION;
}
SdlOglGlue::~SdlOglGlue()
{
// GNASH_REPORT_FUNCTION;
}
bool
#ifdef FIX_I810_LOD_BIAS
SdlOglGlue::init(int argc, char** argv[])
#else
SdlOglGlue::init(int, char***)
#endif
{
// GNASH_REPORT_FUNCTION;
#ifdef FIX_I810_LOD_BIAS
int c = getopt (argc, *argv, "m:");
if (c == 'm') {
_tex_lod_bias = (float) strtof(optarg, NULL);
}
#endif
return true;
}
render_handler*
SdlOglGlue::createRenderHandler(int depth)
{
// GNASH_REPORT_FUNCTION;
_bpp = depth;
render_handler* renderer = create_render_handler_ogl();
#ifdef FIX_I810_LOD_BIAS
glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, _tex_lod_bias);
#endif
return renderer;
}
bool
SdlOglGlue::prepDrawingArea(int width, int height, boost::uint32_t sdl_flags)
{
if (_bpp == 16) {
// 16-bit color, surface creation is likely to succeed.
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 15);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
} else {
assert(_bpp == 32);
// 32-bit color etc, for getting dest alpha,
// for MULTIPASS_ANTIALIASING (see
// render_handler_ogl.cpp).
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
}
SDL_SetVideoMode(width, height, _bpp, sdl_flags | SDL_OPENGL);
// Turn on alpha blending.
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Turn on line smoothing. Antialiased lines can be used to
// smooth the outsides of shapes.
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); // GL_NICEST, GL_FASTEST, GL_DONT_CARE
glMatrixMode(GL_PROJECTION);
glOrtho(-OVERSIZE, OVERSIZE, OVERSIZE, -OVERSIZE, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// We don't need lighting effects
glDisable(GL_LIGHTING);
glPushAttrib (GL_ALL_ATTRIB_BITS);
# ifdef FIX_I810_LOD_BIAS
glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, _tex_lod_bias);
# endif
return true;
}
void
SdlOglGlue::render()
{
// GNASH_REPORT_FUNCTION;
SDL_GL_SwapBuffers();
}
} // namespace gnash
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