mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-11-15 22:19:07 +00:00
360 lines
10 KiB
C++
360 lines
10 KiB
C++
|
/*
|
||
|
|
Copyright (C) 2007, 2010 - Bit-Blot
|
||
|
|
|
||
|
|
This file is part of Aquaria.
|
||
|
|
|
||
|
|
Aquaria 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 (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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
*/
|
||
|
|
#include "FrameBuffer.h"
|
||
|
|
#include "Core.h"
|
||
|
|
|
||
|
|
//WARNING: FrameBuffer objects have to have reloadDevice/unloadDevice called manually!
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_FRAMEBUFFER
|
||
|
|
#if defined(BBGE_BUILD_OPENGL)
|
||
|
|
PFNGLISRENDERBUFFEREXTPROC glIsRenderbufferEXT = NULL;
|
||
|
|
PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT = NULL;
|
||
|
|
PFNGLDELETERENDERBUFFERSEXTPROC glDeleteRenderbuffersEXT = NULL;
|
||
|
|
PFNGLGENRENDERBUFFERSEXTPROC glGenRenderbuffersEXT = NULL;
|
||
|
|
PFNGLRENDERBUFFERSTORAGEEXTPROC glRenderbufferStorageEXT = NULL;
|
||
|
|
PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC glGetRenderbufferParameterivEXT = NULL;
|
||
|
|
PFNGLISFRAMEBUFFEREXTPROC glIsFramebufferEXT = NULL;
|
||
|
|
PFNGLBINDFRAMEBUFFEREXTPROC glBindFramebufferEXT = NULL;
|
||
|
|
PFNGLDELETEFRAMEBUFFERSEXTPROC glDeleteFramebuffersEXT = NULL;
|
||
|
|
PFNGLGENFRAMEBUFFERSEXTPROC glGenFramebuffersEXT = NULL;
|
||
|
|
PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC glCheckFramebufferStatusEXT = NULL;
|
||
|
|
PFNGLFRAMEBUFFERTEXTURE1DEXTPROC glFramebufferTexture1DEXT = NULL;
|
||
|
|
PFNGLFRAMEBUFFERTEXTURE2DEXTPROC glFramebufferTexture2DEXT = NULL;
|
||
|
|
PFNGLFRAMEBUFFERTEXTURE3DEXTPROC glFramebufferTexture3DEXT = NULL;
|
||
|
|
PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC glFramebufferRenderbufferEXT = NULL;
|
||
|
|
PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC glGetFramebufferAttachmentParameterivEXT = NULL;
|
||
|
|
PFNGLGENERATEMIPMAPEXTPROC glGenerateMipmapEXT = NULL;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
FrameBuffer::FrameBuffer()
|
||
|
|
{
|
||
|
|
inited = false;
|
||
|
|
enabled = false;
|
||
|
|
w = 0;
|
||
|
|
h = 0;
|
||
|
|
g_frameBuffer = 0;
|
||
|
|
g_depthRenderBuffer = 0;
|
||
|
|
g_dynamicTextureID = 0;
|
||
|
|
_w = _h = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
FrameBuffer::~FrameBuffer()
|
||
|
|
{
|
||
|
|
unloadDevice();
|
||
|
|
}
|
||
|
|
|
||
|
|
float FrameBuffer::getWidthP()
|
||
|
|
{
|
||
|
|
float px=0;
|
||
|
|
int sw=core->getWindowWidth();
|
||
|
|
px = (float)sw/(float)w;
|
||
|
|
return px;
|
||
|
|
}
|
||
|
|
|
||
|
|
float FrameBuffer::getHeightP()
|
||
|
|
{
|
||
|
|
float py=0;
|
||
|
|
int sh=core->getWindowHeight();
|
||
|
|
py = (float)sh/(float)h;
|
||
|
|
return py;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool FrameBuffer::init(int width, int height, bool fitToScreen, GLint filter)
|
||
|
|
{
|
||
|
|
// !!! FIXME: check for common GMA GL_RENDERER strings on Linux, too.
|
||
|
|
#ifdef BBGE_BUILD_MACOSX
|
||
|
|
std::ostringstream oss;
|
||
|
|
oss << "Vendor: [" << glGetString(GL_VENDOR) << "] Renderer: [" << glGetString(GL_RENDERER) << "]";
|
||
|
|
debugLog(oss.str());
|
||
|
|
|
||
|
|
std::string renderer = (const char*)glGetString(GL_RENDERER);
|
||
|
|
if (renderer.find("Intel GMA 950") != std::string::npos)
|
||
|
|
{
|
||
|
|
debugLog("Video Card is Intel GMA 950. Disabling FrameBuffer Effects.");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_FRAMEBUFFER
|
||
|
|
|
||
|
|
_w = width;
|
||
|
|
_h = height;
|
||
|
|
|
||
|
|
if (width == -1)
|
||
|
|
width = core->width;
|
||
|
|
|
||
|
|
if (height == -1)
|
||
|
|
height = core->height;
|
||
|
|
|
||
|
|
if (fitToScreen)
|
||
|
|
{
|
||
|
|
sizePowerOf2Texture(width);
|
||
|
|
sizePowerOf2Texture(height);
|
||
|
|
}
|
||
|
|
|
||
|
|
_fitToScreen = fitToScreen;
|
||
|
|
if (width == 0 || height == 0)
|
||
|
|
return false;
|
||
|
|
/*
|
||
|
|
if (width > height)
|
||
|
|
height = width;
|
||
|
|
*/
|
||
|
|
|
||
|
|
w=width;
|
||
|
|
h=height;
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_OPENGL
|
||
|
|
char *ext = (char*)glGetString( GL_EXTENSIONS );
|
||
|
|
|
||
|
|
std::ostringstream os;
|
||
|
|
os << "Loading EXT_framebuffer_object (" << w << ", " << h << ")";
|
||
|
|
debugLog(os.str());
|
||
|
|
|
||
|
|
if( strstr( ext, "EXT_framebuffer_object" ) == NULL )
|
||
|
|
{
|
||
|
|
debugLog("EXT_framebuffer_object extension was not found");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
#if defined(BBGE_BUILD_SDL)
|
||
|
|
if (!glIsRenderbufferEXT)
|
||
|
|
{
|
||
|
|
glIsRenderbufferEXT = (PFNGLISRENDERBUFFEREXTPROC)SDL_GL_GetProcAddress("glIsRenderbufferEXT");
|
||
|
|
glBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)SDL_GL_GetProcAddress("glBindRenderbufferEXT");
|
||
|
|
glDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC)SDL_GL_GetProcAddress("glDeleteRenderbuffersEXT");
|
||
|
|
glGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC)SDL_GL_GetProcAddress("glGenRenderbuffersEXT");
|
||
|
|
glRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC)SDL_GL_GetProcAddress("glRenderbufferStorageEXT");
|
||
|
|
glGetRenderbufferParameterivEXT = (PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC)SDL_GL_GetProcAddress("glGetRenderbufferParameterivEXT");
|
||
|
|
glIsFramebufferEXT = (PFNGLISFRAMEBUFFEREXTPROC)SDL_GL_GetProcAddress("glIsFramebufferEXT");
|
||
|
|
glBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC)SDL_GL_GetProcAddress("glBindFramebufferEXT");
|
||
|
|
glDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)SDL_GL_GetProcAddress("glDeleteFramebuffersEXT");
|
||
|
|
glGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)SDL_GL_GetProcAddress("glGenFramebuffersEXT");
|
||
|
|
glCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)SDL_GL_GetProcAddress("glCheckFramebufferStatusEXT");
|
||
|
|
glFramebufferTexture1DEXT = (PFNGLFRAMEBUFFERTEXTURE1DEXTPROC)SDL_GL_GetProcAddress("glFramebufferTexture1DEXT");
|
||
|
|
glFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)SDL_GL_GetProcAddress("glFramebufferTexture2DEXT");
|
||
|
|
glFramebufferTexture3DEXT = (PFNGLFRAMEBUFFERTEXTURE3DEXTPROC)SDL_GL_GetProcAddress("glFramebufferTexture3DEXT");
|
||
|
|
glFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC)SDL_GL_GetProcAddress("glFramebufferRenderbufferEXT");
|
||
|
|
glGetFramebufferAttachmentParameterivEXT = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC)SDL_GL_GetProcAddress("glGetFramebufferAttachmentParameterivEXT");
|
||
|
|
glGenerateMipmapEXT = (PFNGLGENERATEMIPMAPEXTPROC)SDL_GL_GetProcAddress("glGenerateMipmapEXT");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if( !glIsRenderbufferEXT || !glBindRenderbufferEXT || !glDeleteRenderbuffersEXT ||
|
||
|
|
!glGenRenderbuffersEXT || !glRenderbufferStorageEXT || !glGetRenderbufferParameterivEXT ||
|
||
|
|
!glIsFramebufferEXT || !glBindFramebufferEXT || !glDeleteFramebuffersEXT ||
|
||
|
|
!glGenFramebuffersEXT || !glCheckFramebufferStatusEXT || !glFramebufferTexture1DEXT ||
|
||
|
|
!glFramebufferTexture2DEXT || !glFramebufferTexture3DEXT || !glFramebufferRenderbufferEXT||
|
||
|
|
!glGetFramebufferAttachmentParameterivEXT || !glGenerateMipmapEXT )
|
||
|
|
{
|
||
|
|
debugLog("One or more EXT_framebuffer_object functions were not found");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Create a frame-buffer object and a render-buffer object...
|
||
|
|
//
|
||
|
|
|
||
|
|
glGenFramebuffersEXT( 1, &g_frameBuffer );
|
||
|
|
glGenRenderbuffersEXT( 1, &g_depthRenderBuffer );
|
||
|
|
|
||
|
|
// Initialize the render-buffer for usage as a depth buffer.
|
||
|
|
// We don't really need this to render things into the frame-buffer object,
|
||
|
|
// but without it the geometry will not be sorted properly.
|
||
|
|
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, g_depthRenderBuffer );
|
||
|
|
glRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, width, height );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Check for errors...
|
||
|
|
//
|
||
|
|
|
||
|
|
GLenum status = glCheckFramebufferStatusEXT( GL_FRAMEBUFFER_EXT );
|
||
|
|
|
||
|
|
switch( status )
|
||
|
|
{
|
||
|
|
case GL_FRAMEBUFFER_COMPLETE_EXT:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
|
||
|
|
debugLog("GL_FRAMEBUFFER_UNSUPPORTED_EXT!");
|
||
|
|
return false;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
glGenTextures( 1, &g_dynamicTextureID );
|
||
|
|
|
||
|
|
glBindTexture( GL_TEXTURE_2D, g_dynamicTextureID );
|
||
|
|
// GL_LINEAR
|
||
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter );
|
||
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter );
|
||
|
|
|
||
|
|
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB,
|
||
|
|
width, height,
|
||
|
|
0, GL_BGR, GL_UNSIGNED_BYTE, 0 );
|
||
|
|
}
|
||
|
|
|
||
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
debugLog("Done");
|
||
|
|
inited = true;
|
||
|
|
enabled = true;
|
||
|
|
return true;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void FrameBuffer::unloadDevice()
|
||
|
|
{
|
||
|
|
debugLog("frameBuffer::unloadDevice");
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_FRAMEBUFFER
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_OPENGL
|
||
|
|
|
||
|
|
if (glDeleteFramebuffersEXT == NULL)
|
||
|
|
{
|
||
|
|
debugLog("Already shut down the GL, don't delete framebuffers");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (g_frameBuffer)
|
||
|
|
{
|
||
|
|
debugLog("bind 0");
|
||
|
|
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, 0 );
|
||
|
|
|
||
|
|
debugLog("frameBuffer handle present, deleting");
|
||
|
|
glDeleteFramebuffersEXT(1, &g_frameBuffer);
|
||
|
|
g_frameBuffer = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (g_dynamicTextureID)
|
||
|
|
{
|
||
|
|
debugLog("bind 0");
|
||
|
|
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, 0 );
|
||
|
|
|
||
|
|
debugLog("dynamic texture ID handle present, deleting");
|
||
|
|
glDeleteTextures(1, &g_dynamicTextureID);
|
||
|
|
g_dynamicTextureID = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (g_depthRenderBuffer)
|
||
|
|
{
|
||
|
|
debugLog("bind 0");
|
||
|
|
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, 0 );
|
||
|
|
|
||
|
|
debugLog("depth render buffer handle present, deleting");
|
||
|
|
glDeleteRenderbuffersEXT(1, &g_depthRenderBuffer);
|
||
|
|
g_depthRenderBuffer = 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
debugLog("done");
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(BBGE_BUILD_SDL)
|
||
|
|
void FrameBuffer::resetOpenGL()
|
||
|
|
{
|
||
|
|
#if defined(BBGE_BUILD_FRAMEBUFFER)
|
||
|
|
// set these back to NULL and reload them upon reinit, otherwise they
|
||
|
|
// might point to a bogus address when the shared library is reloaded.
|
||
|
|
glIsRenderbufferEXT = NULL;
|
||
|
|
glBindRenderbufferEXT = NULL;
|
||
|
|
glDeleteRenderbuffersEXT = NULL;
|
||
|
|
glGenRenderbuffersEXT = NULL;
|
||
|
|
glRenderbufferStorageEXT = NULL;
|
||
|
|
glGetRenderbufferParameterivEXT = NULL;
|
||
|
|
glIsFramebufferEXT = NULL;
|
||
|
|
glBindFramebufferEXT = NULL;
|
||
|
|
glDeleteFramebuffersEXT = NULL;
|
||
|
|
glGenFramebuffersEXT = NULL;
|
||
|
|
glCheckFramebufferStatusEXT = NULL;
|
||
|
|
glFramebufferTexture1DEXT = NULL;
|
||
|
|
glFramebufferTexture2DEXT = NULL;
|
||
|
|
glFramebufferTexture3DEXT = NULL;
|
||
|
|
glFramebufferRenderbufferEXT = NULL;
|
||
|
|
glGetFramebufferAttachmentParameterivEXT = NULL;
|
||
|
|
glGenerateMipmapEXT = NULL;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void FrameBuffer::reloadDevice()
|
||
|
|
{
|
||
|
|
debugLog("frameBuffer::reloadDevice");
|
||
|
|
init(_w, _h, _fitToScreen);
|
||
|
|
}
|
||
|
|
|
||
|
|
void FrameBuffer::startCapture()
|
||
|
|
{
|
||
|
|
#ifdef BBGE_BUILD_FRAMEBUFFER
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_OPENGL
|
||
|
|
glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, g_frameBuffer );
|
||
|
|
//glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, g_depthRenderBuffer );
|
||
|
|
glFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, g_dynamicTextureID, 0 );
|
||
|
|
glFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, g_depthRenderBuffer );
|
||
|
|
|
||
|
|
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void FrameBuffer::endCapture()
|
||
|
|
{
|
||
|
|
#ifdef BBGE_BUILD_FRAMEBUFFER
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_OPENGL
|
||
|
|
glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void FrameBuffer::bindTexture()
|
||
|
|
{
|
||
|
|
#ifdef BBGE_BUILD_FRAMEBUFFER
|
||
|
|
|
||
|
|
#ifdef BBGE_BUILD_OPENGL
|
||
|
|
glBindTexture( GL_TEXTURE_2D, g_dynamicTextureID );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void FrameBuffer::setEnabled(bool e)
|
||
|
|
{
|
||
|
|
enabled = e;
|
||
|
|
}
|
||
|
|
|