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Serious-Engine/Sources/Engine/Graphics/Gfx_OpenGL.cpp

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Add GPL header to files
2016-03-12 01:20:51 +01:00
/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation
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 Street, Fifth Floor, Boston, MA 02110-1301 USA. */
Uploading full engine sources
2016-03-11 14:57:17 +01:00
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
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#include "Engine/StdH.h"
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#include <Engine/Graphics/GfxLibrary.h>
#include <Engine/Base/Translation.h>
#include <Engine/Base/ErrorReporting.h>
#include <Engine/Base/Memory.h>
#include <Engine/Base/Console.h>
#include <Engine/Graphics/ViewPort.h>
#include <Engine/Graphics/MultiMonitor.h>
#include <Engine/Templates/DynamicContainer.cpp>
#include <Engine/Templates/Stock_CTextureData.h>
#include <Engine/Base/ListIterator.inl>
Fix up some mismerges and get the OpenGL code to compile again.
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BOOL _TBCapability = FALSE;
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extern INDEX ogl_iTBufferEffect;
extern INDEX ogl_iTBufferSamples;
// fog/haze textures
extern ULONG _fog_ulTexture;
extern ULONG _haze_ulTexture;
// change control
extern INDEX GFX_ctVertices;
// attributes for t-buffer
int aiAttribList[] = {
WGL_DRAW_TO_WINDOW_EXT, TRUE,
WGL_SUPPORT_OPENGL_EXT, TRUE,
WGL_DOUBLE_BUFFER_EXT, TRUE,
WGL_PIXEL_TYPE_EXT, WGL_TYPE_RGBA_EXT,
WGL_COLOR_BITS_EXT, 16,
WGL_DEPTH_BITS_EXT, 16,
WGL_SAMPLE_BUFFERS_3DFX, 1,
WGL_SAMPLES_3DFX, 4,
0, 0
};
int *piAttribList = aiAttribList;
// engine's internal opengl state variables
extern BOOL GFX_bDepthTest;
extern BOOL GFX_bDepthWrite;
extern BOOL GFX_bAlphaTest;
extern BOOL GFX_bBlending;
extern BOOL GFX_bDithering;
extern BOOL GFX_bClipping;
extern BOOL GFX_bClipPlane;
extern BOOL GFX_bColorArray;
extern BOOL GFX_bFrontFace;
extern BOOL GFX_bTruform;
extern INDEX GFX_iActiveTexUnit;
extern FLOAT GFX_fMinDepthRange;
extern FLOAT GFX_fMaxDepthRange;
extern GfxBlend GFX_eBlendSrc;
extern GfxBlend GFX_eBlendDst;
extern GfxComp GFX_eDepthFunc;
extern GfxFace GFX_eCullFace;
extern INDEX GFX_iTexModulation[GFX_MAXTEXUNITS];
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
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BOOL glbUsingVARs = FALSE; // vertex_array_range
Uploading full engine sources
2016-03-11 14:57:17 +01:00
// define gl function pointers
#define DLLFUNCTION(dll, output, name, inputs, params, required) \
output (__stdcall *p##name) inputs = NULL;
#include "gl_functions.h"
#undef DLLFUNCTION
// extensions
void (__stdcall *pglLockArraysEXT)(GLint first, GLsizei count) = NULL;
void (__stdcall *pglUnlockArraysEXT)(void) = NULL;
First attempt at a port to SDL2. Untested!
2016-04-09 08:18:57 +02:00
#if PLATFORM_WIN32 // SDL handles this elsewhere.
Uploading full engine sources
2016-03-11 14:57:17 +01:00
GLboolean (__stdcall *pwglSwapIntervalEXT)(GLint interval) = NULL;
GLint (__stdcall *pwglGetSwapIntervalEXT)(void) = NULL;
First attempt at a port to SDL2. Untested!
2016-04-09 08:18:57 +02:00
#endif
Uploading full engine sources
2016-03-11 14:57:17 +01:00
void (__stdcall *pglActiveTextureARB)(GLenum texunit) = NULL;
void (__stdcall *pglClientActiveTextureARB)(GLenum texunit) = NULL;
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
#ifdef PLATFORM_WIN32
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char *(__stdcall *pwglGetExtensionsStringARB)(HDC hdc);
BOOL (__stdcall *pwglChoosePixelFormatARB)(HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
BOOL (__stdcall *pwglGetPixelFormatAttribivARB)(HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, int *piValues);
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
#endif
First attempt at a port to SDL2. Untested!
2016-04-09 08:18:57 +02:00
// t-buffer support
Uploading full engine sources
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void (__stdcall *pglTBufferMask3DFX)(GLuint mask);
// NV occlusion query
void (__stdcall *pglGenOcclusionQueriesNV)( GLsizei n, GLuint *ids);
void (__stdcall *pglDeleteOcclusionQueriesNV)( GLsizei n, const GLuint *ids);
void (__stdcall *pglBeginOcclusionQueryNV)( GLuint id);
void (__stdcall *pglEndOcclusionQueryNV)(void);
void (__stdcall *pglGetOcclusionQueryivNV)( GLuint id, GLenum pname, GLint *params);
void (__stdcall *pglGetOcclusionQueryuivNV)( GLuint id, GLenum pname, GLuint *params);
GLboolean (__stdcall *pglIsOcclusionQueryNV)( GLuint id);
// ATI GL_ATI_pn_triangles
void (__stdcall *pglPNTrianglesiATI)( GLenum pname, GLint param);
void (__stdcall *pglPNTrianglesfATI)( GLenum pname, GLfloat param);
// test if an extension exists
static BOOL HasExtension( const char *strAllExtensions, const char *strExtension)
{
// find substring
const char *strFound = strstr( strAllExtensions, strExtension);
// no extension if not found
if( strFound==NULL) return FALSE;
INDEX iExtensionLen = strlen(strExtension);
// if found substring is substring of some other extension
if( strFound[iExtensionLen]!=' ' && strFound[iExtensionLen]!=0) {
// continue searching after that char
return HasExtension( strFound+iExtensionLen, strExtension);
}
// extension found
return TRUE;
}
// add OpenGL extensions to engine
void CGfxLibrary::AddExtension_OGL( ULONG ulFlag, const char *strName)
{
gl_ulFlags = (gl_ulFlags & ~ulFlag) | ulFlag;
go_strSupportedExtensions += strName;
go_strSupportedExtensions += " ";
}
// determine OpenGL extensions that engine supports
void CGfxLibrary::TestExtension_OGL( ULONG ulFlag, const char *strName)
{
if( HasExtension( go_strExtensions, strName)) AddExtension_OGL( ulFlag, strName);
}
// prepares OpenGL drawing context
void CGfxLibrary::InitContext_OGL(void)
{
// must have context
ASSERT( gl_pvpActive!=NULL);
// reset engine's internal OpenGL state variables
extern BOOL GFX_abTexture[GFX_MAXTEXUNITS];
for( INDEX iUnit=0; iUnit<GFX_MAXTEXUNITS; iUnit++) {
GFX_abTexture[iUnit] = FALSE;
GFX_iTexModulation[iUnit] = 1;
}
// set default texture unit and modulation mode
GFX_iActiveTexUnit = 0;
gl_ctMaxStreams = 16; // GL always has enough "streams" for multi-texturing
// reset frustum/ortho stuff
extern BOOL GFX_bViewMatrix;
extern FLOAT GFX_fLastL, GFX_fLastR, GFX_fLastT, GFX_fLastB, GFX_fLastN, GFX_fLastF;
GFX_fLastL = GFX_fLastR = GFX_fLastT = GFX_fLastB = GFX_fLastN = GFX_fLastF = 0;
GFX_bViewMatrix = TRUE;
glbUsingVARs = FALSE;
GFX_bTruform = FALSE;
GFX_bClipping = TRUE;
pglEnable( GL_TEXTURE_2D); GFX_abTexture[0] = TRUE;
pglEnable( GL_DITHER); GFX_bDithering = TRUE;
pglDisable( GL_BLEND); GFX_bBlending = FALSE;
pglDisable( GL_DEPTH_TEST); GFX_bDepthTest = FALSE;
pglDisable( GL_ALPHA_TEST); GFX_bAlphaTest = FALSE;
pglDisable( GL_CLIP_PLANE0); GFX_bClipPlane = FALSE;
pglDisable( GL_CULL_FACE); GFX_eCullFace = GFX_NONE;
pglFrontFace( GL_CCW); GFX_bFrontFace = TRUE;
pglDepthMask( GL_FALSE); GFX_bDepthWrite = FALSE;
pglDepthFunc( GL_LEQUAL); GFX_eDepthFunc = GFX_LESS_EQUAL;
pglBlendFunc( GL_ONE, GL_ONE); GFX_eBlendSrc = GFX_eBlendDst = GFX_ONE;
pglDepthRange( 0.0f, 1.0f); GFX_fMinDepthRange = 0.0f;
GFX_fMaxDepthRange = 1.0f;
// (re)set some OpenGL defaults
gfxPolygonMode( GFX_FILL);
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
pglFrontFace( GL_CCW);
Uploading full engine sources
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pglShadeModel( GL_SMOOTH);
pglEnable( GL_SCISSOR_TEST);
pglDrawBuffer( GL_BACK);
pglAlphaFunc( GL_GEQUAL, 0.5f);
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f);
pglMatrixMode( GL_MODELVIEW);
pglLoadIdentity();
pglMatrixMode( GL_TEXTURE);
pglLoadIdentity();
// enable rendering only thru vertex arrays by default
pglEnableClientState( GL_VERTEX_ARRAY);
pglDisableClientState( GL_NORMAL_ARRAY);
pglDisableClientState( GL_TEXTURE_COORD_ARRAY);
pglDisableClientState( GL_COLOR_ARRAY);
GFX_bColorArray = FALSE;
// set single byte pixel alignment
pglPixelStorei( GL_PACK_ALIGNMENT, 1);
pglPixelStorei( GL_UNPACK_ALIGNMENT, 1);
// TEST EXTENSIONS
CDisplayAdapter &da = gl_gaAPI[GAT_OGL].ga_adaAdapter[gl_iCurrentAdapter];
da.da_strVendor = (const char*)pglGetString(GL_VENDOR);
da.da_strRenderer = (const char*)pglGetString(GL_RENDERER);
da.da_strVersion = (const char*)pglGetString(GL_VERSION);
go_strExtensions = (const char*)pglGetString(GL_EXTENSIONS);
// report
CPrintF( TRANS("\n* OpenGL context created: *----------------------------------\n"));
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
CPrintF( " (%s, %s, %s)\n\n", (const char *) da.da_strVendor, (const char *) da.da_strRenderer, (const char *) da.da_strVersion);
Uploading full engine sources
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// test for used extensions
GLint gliRet;
GLfloat glfRet;
go_strSupportedExtensions = "";
// check for WGL extensions, too
go_strWinExtensions = "";
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
#ifdef PLATFORM_WIN32
Uploading full engine sources
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pwglGetExtensionsStringARB = (char* (__stdcall*)(HDC))pwglGetProcAddress("wglGetExtensionsStringARB");
if( pwglGetExtensionsStringARB != NULL) {
AddExtension_OGL( NONE, "WGL_ARB_extensions_string"); // register
CTempDC tdc(gl_pvpActive->vp_hWnd);
go_strWinExtensions = (char*)pwglGetExtensionsStringARB(tdc.hdc);
}
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
#endif
Uploading full engine sources
2016-03-11 14:57:17 +01:00
// multitexture is supported only thru GL_EXT_texture_env_combine extension
gl_ctTextureUnits = 1;
gl_ctRealTextureUnits = 1;
pglActiveTextureARB = NULL;
pglClientActiveTextureARB = NULL;
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
// This renders badly on the current Intel Macs...my bug, probably. !!! FIXME
#if PLATFORM_MACOSX
CPrintF("Forcibly disabled multitexturing for now on Mac OS X.");
#else
Uploading full engine sources
2016-03-11 14:57:17 +01:00
if( HasExtension( go_strExtensions, "GL_ARB_multitexture")) {
pglGetIntegerv( GL_MAX_TEXTURE_UNITS_ARB, (int*)&gl_ctRealTextureUnits); // get number of texture units
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
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if( gl_ctRealTextureUnits>1 && (HasExtension( go_strExtensions, "GL_EXT_texture_env_combine") || HasExtension( go_strExtensions, "GL_ARB_texture_env_combine")) ) {
Uploading full engine sources
2016-03-11 14:57:17 +01:00
AddExtension_OGL( NONE, "GL_ARB_multitexture");
AddExtension_OGL( NONE, "GL_EXT_texture_env_combine");
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
pglActiveTextureARB = (void (__stdcall*)(GLenum))OGL_GetProcAddress( "glActiveTextureARB");
pglClientActiveTextureARB = (void (__stdcall*)(GLenum))OGL_GetProcAddress( "glClientActiveTextureARB");
Uploading full engine sources
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ASSERT( pglActiveTextureARB!=NULL && pglClientActiveTextureARB!=NULL);
gl_ctTextureUnits = Min( GFX_MAXTEXUNITS, gl_ctRealTextureUnits);
} else {
CPrintF( TRANS(" GL_TEXTURE_ENV_COMBINE extension missing - multi-texturing cannot be used.\n"));
}
}
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
#endif
Uploading full engine sources
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// find all supported texture compression extensions
TestExtension_OGL( GLF_EXTC_ARB, "GL_ARB_texture_compression");
TestExtension_OGL( GLF_EXTC_S3TC, "GL_EXT_texture_compression_s3tc");
TestExtension_OGL( GLF_EXTC_FXT1, "GL_3DFX_texture_compression_FXT1");
TestExtension_OGL( GLF_EXTC_LEGACY, "GL_S3_s3tc");
// mark if there is at least one extension present
gl_ulFlags &= ~GLF_TEXTURECOMPRESSION;
if( (gl_ulFlags&GLF_EXTC_ARB) || (gl_ulFlags&GLF_EXTC_FXT1)
|| (gl_ulFlags&GLF_EXTC_S3TC) || (gl_ulFlags&GLF_EXTC_LEGACY)) {
gl_ulFlags |= GLF_TEXTURECOMPRESSION;
}
// determine max supported dimension of texture
pglGetIntegerv( GL_MAX_TEXTURE_SIZE, (GLint*)&gl_pixMaxTextureDimension);
OGL_CHECKERROR;
// determine support for texture LOD biasing
gl_fMaxTextureLODBias = 0.0f;
if( HasExtension( go_strExtensions, "GL_EXT_texture_lod_bias")) {
AddExtension_OGL( NONE, "GL_EXT_texture_lod_bias"); // register
// check max possible lod bias (absolute)
pglGetFloatv( GL_MAX_TEXTURE_LOD_BIAS_EXT, &glfRet);
GLenum gleError = pglGetError(); // just because of invalid extension implementations (S3)
if( gleError || glfRet<0.1f || glfRet>4.0f) glfRet = 4.0f;
gl_fMaxTextureLODBias = glfRet;
OGL_CHECKERROR;
}
// determine support for anisotropic filtering
gl_iMaxTextureAnisotropy = 1;
if( HasExtension( go_strExtensions, "GL_EXT_texture_filter_anisotropic")) {
AddExtension_OGL( NONE, "GL_EXT_texture_filter_anisotropic"); // register
// keep max allowed anisotropy degree
pglGetIntegerv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gliRet);
gl_iMaxTextureAnisotropy = gliRet;
OGL_CHECKERROR;
}
// check support for compiled vertex arrays
pglLockArraysEXT = NULL;
pglUnlockArraysEXT = NULL;
if( HasExtension( go_strExtensions, "GL_EXT_compiled_vertex_array")) {
AddExtension_OGL( GLF_EXT_COMPILEDVERTEXARRAY, "GL_EXT_compiled_vertex_array");
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
pglLockArraysEXT = (void (__stdcall*)(GLint,GLsizei))OGL_GetProcAddress( "glLockArraysEXT");
pglUnlockArraysEXT = (void (__stdcall*)(void) )OGL_GetProcAddress( "glUnlockArraysEXT");
Uploading full engine sources
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ASSERT( pglLockArraysEXT!=NULL && pglUnlockArraysEXT!=NULL);
}
// check support for swap interval
First attempt at a port to SDL2. Untested!
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#ifdef PLATFORM_WIN32 // SDL handles this elsewhere.
Uploading full engine sources
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pwglSwapIntervalEXT = NULL;
pwglGetSwapIntervalEXT = NULL;
if( HasExtension( go_strExtensions, "WGL_EXT_swap_control")) {
AddExtension_OGL( GLF_VSYNC, "WGL_EXT_swap_control");
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
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pwglSwapIntervalEXT = (GLboolean (__stdcall*)(GLint))OGL_GetProcAddress( "wglSwapIntervalEXT");
pwglGetSwapIntervalEXT = (GLint (__stdcall*)(void) )OGL_GetProcAddress( "wglGetSwapIntervalEXT");
Uploading full engine sources
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ASSERT( pwglSwapIntervalEXT!=NULL && pwglGetSwapIntervalEXT!=NULL);
}
First attempt at a port to SDL2. Untested!
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#endif
Uploading full engine sources
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// determine support for ATI Truform technology
extern INDEX truform_iLevel;
extern BOOL truform_bLinear;
truform_iLevel = -1;
truform_bLinear = FALSE;
pglPNTrianglesiATI = NULL;
pglPNTrianglesfATI = NULL;
gl_iTessellationLevel = 0;
gl_iMaxTessellationLevel = 0;
if( HasExtension( go_strExtensions, "GL_ATI_pn_triangles")) {
AddExtension_OGL( NONE, "GL_ATI_pn_triangles");
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
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pglPNTrianglesiATI = (void (__stdcall*)(GLenum,GLint ))OGL_GetProcAddress( "glPNTrianglesiATI");
pglPNTrianglesfATI = (void (__stdcall*)(GLenum,GLfloat))OGL_GetProcAddress( "glPNTrianglesfATI");
Uploading full engine sources
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ASSERT( pglPNTrianglesiATI!=NULL && pglPNTrianglesfATI!=NULL);
// check max possible tessellation
pglGetIntegerv( GL_MAX_PN_TRIANGLES_TESSELATION_LEVEL_ATI, &gliRet);
gl_iMaxTessellationLevel = gliRet;
OGL_CHECKERROR;
}
// if T-buffer is supported
if( _TBCapability) {
// add extension and disable t-buffer usage by default
AddExtension_OGL( GLF_EXT_TBUFFER, "GL_3DFX_multisample");
pglDisable( GL_MULTISAMPLE_3DFX);
OGL_CHECKERROR;
}
// test for clamp to edge
TestExtension_OGL( GLF_EXT_EDGECLAMP, "GL_EXT_texture_edge_clamp");
// test for clip volume hint
TestExtension_OGL( GLF_EXT_CLIPHINT, "GL_EXT_clip_volume_hint");
/*
// test for occlusion culling
TestExtension_OGL( GLF_EXT_OCCLUSIONTEST, "GL_HP_occlusion_test");
pglGenOcclusionQueriesNV = NULL; pglDeleteOcclusionQueriesNV = NULL;
pglBeginOcclusionQueryNV = NULL; pglEndOcclusionQueryNV = NULL;
pglGetOcclusionQueryivNV = NULL; pglGetOcclusionQueryuivNV = NULL;
pglIsOcclusionQueryNV = NULL;
if( HasExtension( go_strExtensions, "GL_NV_occlusion_query"))
{ // prepare extension's functions
AddExtension_OGL( GLF_EXT_OCCLUSIONQUERY, "GL_NV_occlusion_query");
pglGenOcclusionQueriesNV = (void (__stdcall*)(GLsizei, GLuint*))pwglGetProcAddress( "glGenOcclusionQueriesNV");
pglDeleteOcclusionQueriesNV = (void (__stdcall*)(GLsizei, const GLuint*))pwglGetProcAddress( "glDeleteOcclusionQueriesNV");
pglBeginOcclusionQueryNV = (void (__stdcall*)(GLuint))pwglGetProcAddress( "glBeginOcclusionQueryNV");
pglEndOcclusionQueryNV = (void (__stdcall*)(void))pwglGetProcAddress( "glEndOcclusionQueryNV");
pglGetOcclusionQueryivNV = (void (__stdcall*)(GLuint, GLenum, GLint*))pwglGetProcAddress( "glGetOcclusionQueryivNV");
pglGetOcclusionQueryuivNV = (void (__stdcall*)(GLuint, GLenum, GLuint*))pwglGetProcAddress( "glGetOcclusionQueryuivNV");
pglIsOcclusionQueryNV = (GLboolean (__stdcall*)(GLuint))pwglGetProcAddress( "glIsOcclusionQueryNV");
ASSERT( pglGenOcclusionQueriesNV!=NULL && pglDeleteOcclusionQueriesNV!=NULL
&& pglBeginOcclusionQueryNV!=NULL && pglEndOcclusionQueryNV!=NULL
&& pglGetOcclusionQueryivNV!=NULL && pglGetOcclusionQueryuivNV!=NULL
&& pglIsOcclusionQueryNV!=NULL);
}
*/
// done with seeking for supported extensions
if( go_strSupportedExtensions=="") go_strSupportedExtensions = "none";
// allocate vertex buffers
// eglAdjustVertexBuffers(ogl_iVertexBufferSize*1024);
// OGL_CHECKERROR;
// check if 32-bit textures are supported
GLuint uiTmpTex;
const ULONG ulTmpTex = 0xFFFFFFFF;
pglGenTextures( 1, &uiTmpTex);
pglBindTexture( GL_TEXTURE_2D, uiTmpTex);
pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA8, 1,1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &ulTmpTex);
OGL_CHECKERROR;
gl_ulFlags &= ~GLF_32BITTEXTURES;
pglGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_SIZE, &gliRet);
if( gliRet==8) gl_ulFlags |= GLF_32BITTEXTURES;
pglDeleteTextures( 1, &uiTmpTex);
OGL_CHECKERROR;
// setup fog and haze textures
extern PIX _fog_pixSizeH;
extern PIX _fog_pixSizeL;
extern PIX _haze_pixSize;
pglGenTextures( 1, (GLuint*)&_fog_ulTexture);
pglGenTextures( 1, (GLuint*)&_haze_ulTexture);
_fog_pixSizeH = 0;
_fog_pixSizeL = 0;
_haze_pixSize = 0;
OGL_CHECKERROR;
// prepare pattern texture
extern CTexParams _tpPattern;
extern ULONG _ulPatternTexture;
extern ULONG _ulLastUploadedPattern;
pglGenTextures( 1, (GLuint*)&_ulPatternTexture);
_ulLastUploadedPattern = 0;
_tpPattern.Clear();
// reset texture filtering and array locking
_tpGlobal[0].Clear();
_tpGlobal[1].Clear();
_tpGlobal[2].Clear();
_tpGlobal[3].Clear();
GFX_ctVertices = 0;
gl_dwVertexShader = NONE;
// set default texture filtering/biasing
extern INDEX gap_iTextureFiltering;
extern INDEX gap_iTextureAnisotropy;
extern FLOAT gap_fTextureLODBias;
gfxSetTextureFiltering( gap_iTextureFiltering, gap_iTextureAnisotropy);
gfxSetTextureBiasing( gap_fTextureLODBias);
// mark pretouching and probing
extern BOOL _bNeedPretouch;
_bNeedPretouch = TRUE;
gl_bAllowProbing = FALSE;
// update console system vars
extern void UpdateGfxSysCVars(void);
UpdateGfxSysCVars();
// reload all loaded textures and eventually shadows
extern INDEX shd_bCacheAll;
extern void ReloadTextures(void);
extern void CacheShadows(void);
ReloadTextures();
if( shd_bCacheAll) CacheShadows();
}
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
static void ClearFunctionPointers(void)
{
// clear gl function pointers
#define DLLFUNCTION(dll, output, name, inputs, params, required) p##name = NULL;
#include "gl_functions.h"
#undef DLLFUNCTION
}
Uploading full engine sources
2016-03-11 14:57:17 +01:00
// shutdown OpenGL driver
void CGfxLibrary::EndDriver_OGL(void)
{
// unbind all textures
if( _pTextureStock!=NULL) {
{FOREACHINDYNAMICCONTAINER( _pTextureStock->st_ctObjects, CTextureData, ittd) {
CTextureData &td = *ittd;
td.td_tpLocal.Clear();
td.Unbind();
}}
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
} // unbind fog/haze
Uploading full engine sources
2016-03-11 14:57:17 +01:00
gfxDeleteTexture( _fog_ulTexture);
gfxDeleteTexture( _haze_ulTexture);
Fix up some mismerges and get the OpenGL code to compile again.
2016-03-31 18:26:43 +02:00
ASSERT( _ptdFlat!=NULL);
_ptdFlat->td_tpLocal.Clear();
_ptdFlat->Unbind();
First attempt to hand-merge Ryan's Linux and Mac OS X port. This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
2016-03-29 03:03:54 +02:00
PlatformEndDriver_OGL();
ClearFunctionPointers();
Uploading full engine sources
2016-03-11 14:57:17 +01:00
}
/*
* 3dfx t-buffer control
*/
extern void SetTBufferEffect( BOOL bEnable)
{
// adjust console vars
First pass at cleaning out 64-bit issues. Touches a lot of code to remove long constants like "1L", so this patch is large and ugly, but I think it makes all those Clamp() calls look nicer in the long run. Most of the game is 64-bit clean, since we can build without assembly code now. I've marked the things that are obviously still wrong with STUBBED lines. That being said: a 64-bit build can already run the demos mostly correctly, so we're actually almost there! There are a few obvious things that are obviously wrong, to be fixed.
2016-04-07 05:16:30 +02:00
ogl_iTBufferEffect = Clamp( ogl_iTBufferEffect, 0, 2);
Uploading full engine sources
2016-03-11 14:57:17 +01:00
ogl_iTBufferSamples = (1L) << FastLog2(ogl_iTBufferSamples);
if( ogl_iTBufferSamples<2) ogl_iTBufferSamples = 4;
// if supported
if( _pGfx->gl_ulFlags&GLF_EXT_TBUFFER)
{ // disable multisampling if not required
ASSERT( pglTBufferMask3DFX!=NULL);
if( ogl_iTBufferEffect==0 || _pGfx->go_ctSampleBuffers<2 || !bEnable) pglDisable( GL_MULTISAMPLE_3DFX);
else {
pglEnable( GL_MULTISAMPLE_3DFX);
UINT uiMask = 0xFFFFFFFF;
// set one buffer in case of motion-blur
if( ogl_iTBufferEffect==2) uiMask = (1UL) << _pGfx->go_iCurrentWriteBuffer;
//pglTBufferMask3DFX(uiMask);
}
}
}
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