#include <string.h>
#include "gl_globals.h"
#include "vegastrike.h"
#include "gfxlib.h"
#include "vs_globals.h"
#include "gl_light.h"
#include "config_xml.h"
#include "winsys.h"

Macros
#define	GL_MISC_CPP

Functions
bool	GFXMultiTexAvailable ()

void	GFXCircle (float x, float y, float wid, float hei)

void	GFXBeginScene ()
	resets all local lights and sets identity matrix More...

void	GFXEndScene ()
	Flushes and Swaps buffers. More...

void	GFXClear (const GFXBOOL colorbuffer, const GFXBOOL depthbuffer, const GFXBOOL stencilbuffer)
	Clears the Z buffer. Also clears color buffer if GFXTRUE passed in. More...

GFXBOOL	GFXCapture (char *filename)
	Screen capture (FIXME) More...

void	GFXGetPolygonOffset (float factor, float units)

void	GFXPolygonOffset (float factor, float units)
	Sets Depth Offset for polgyons. More...

void	GFXPolygonMode (const enum POLYMODE polymode)
	Sets the polygon rasterization mode. More...

void	GFXCullFace (const enum POLYFACE polyface)
	Sets the facecull mode. More...

void	GFXPointSize (const float size)
	Sets the size in pixels of a GFXPOINT. More...

void	GFXLineWidth (const float size)
	Sets the line width in pixels of a GFXLINE. More...

void	GFXBegin (const enum POLYTYPE ptype)
	Begins a polytype. More...

void	GFXColorf (const GFXColor &col)
	Specifies a color for henceforth drawn vertices to share. More...

GFXColor	GFXColorf ()
	Gets the current color. More...

void	GFXColor4f (const float r, const float g, const float b, const float a)
	Specifies a color for henceforth drawn vertices to share. More...

void	GFXTexCoord2f (const float s, const float t)
	Specifies a pair of texture coordinates for given vertex. More...

void	GFXTexCoord4f (const float s, const float t, const float u, const float v)
	Specifies four texture coordinates for a given vertex (2 textures) More...

void	GFXTexCoord224f (const float s, const float t, const float s2, const float t2, const float s3, const float t3, const float u3, const float v3)
	Specifies four texture coordinates for a given vertex (3 textures) More...

void	GFXNormal3f (const float i, const float j, const float k)
	Specifies a normal with 3 floats. More...

void	GFXNormal (const Vector &n)
	Specifies a notmal with 1 vector. More...

void	GFXVertex3f (const float x, const float y, const float z)
	Specifies a vertex with 3 floats. More...

void	GFXVertex3f (const double x, const double y, const double z)

void	GFXVertex3d (const double x, const double y, const double z)

void	GFXVertexf (const Vector &v)
	Specifies a vertex with a vector. More...

void	GFXVertexf (const QVector &v)

void	GFXEnd ()
	Ends the current set of polytypes. More...

int	GFXCreateList ()
	Creates a Display list. 0 is returned if no memory is avail for a display list. More...

GFXBOOL	GFXEndList ()
	Ends the display list call. Returns false if unsuccessful. More...

void	GFXCallList (int list)
	Draws a given display list. More...

void	GFXDeleteList (int list)
	Removes a display list from application memory. More...

void	GFXSubwindow (int x, int y, int xsize, int ysize)
	Creates a subwindow with the current parameters for center and size. More...

void	GFXSubwindow (float x, float y, float xsize, float ysize)

Vector	GFXDeviceToEye (int x, int y)
	convertes eyespace to 3space at the near plane More...

Variables
static float	last_factor = 0

static float	last_units = 0

Macro Definition Documentation

#define GL_MISC_CPP

Definition at line 22 of file gl_misc.cpp.

Function Documentation

void GFXBegin ( const enum POLYTYPE ptype)

Begins a polytype.

Definition at line 152 of file gl_misc.cpp.

References GFXLINE, GFXLINESTRIP, GFXPOINT, GFXPOLY, GFXQUAD, GFXQUADSTRIP, GFXTRI, GFXTRIFAN, and GFXTRISTRIP.

 {
     GLenum mode;
     switch (ptype)
     {
     case GFXTRI:
         mode = GL_TRIANGLES;
         break;
     case GFXLINE:
         mode = GL_LINES;
         break;
     case GFXTRISTRIP:
         mode = GL_TRIANGLE_STRIP;
         break;
     case GFXTRIFAN:
         mode = GL_TRIANGLE_FAN;
         break;
     case GFXQUAD:
         mode = GL_QUADS;
         break;
     case GFXQUADSTRIP:
         mode = GL_QUAD_STRIP;
         break;
     case GFXLINESTRIP:
         mode = GL_LINE_STRIP;
         break;
     case GFXPOLY:
         mode = GL_POLYGON;
         break;
     case GFXPOINT:
         mode = GL_POINTS;
         break;
     default:
         mode = GL_POINTS;
         assert( 0 ||! "Bad case in gl_misc.cpp." );
         break;
     }
     glBegin( mode );
 }

void GFXBeginScene ( )

resets all local lights and sets identity matrix

Definition at line 54 of file gl_misc.cpp.

References GFXLoadIdentity(), light_rekey_frame(), and MODEL.

Referenced by base_main_loop(), bootstrap_draw(), gamemenu_draw(), nav_main_loop(), GameUniverse::StartDraw(), and GameUniverse::StartGFX().

 {
     GFXLoadIdentity( MODEL );     //bad this should instead load the cached view matrix
     light_rekey_frame();
 }

void GFXCallList ( int list)

Draws a given display list.

Definition at line 312 of file gl_misc.cpp.

Referenced by GFXVertexList::Draw().

 {
 //VSFileSystem::Fprintf (stderr,"CallListStart");///causes crash with GF2 privaledge instruction on Win2k in certain instances
 //fflush (stderr);
     glCallList( list );
 //VSFileSystem::Fprintf (stderr,"CallListEnd");
 //fflush (stderr);
 }

GFXBOOL GFXCapture ( char * filename)

Screen capture (FIXME)

Definition at line 73 of file gl_misc.cpp.

References GFXFALSE.

 {
     return GFXFALSE;
 }

void GFXCircle	(	float	x,
		float	y,
		float	wid,
		float	hei
	)

Definition at line 37 of file gl_misc.cpp.

References UniverseUtil::cos(), f, g_game, VegaConfig::getVariable(), GFXBegin(), GFXEnd(), GFXLINESTRIP, GFXVertex3f(), i, int, M_PI, Magnitude(), XMLSupport::parse_float(), UniverseUtil::sin(), Vector, vs_config, game_data_t::x_resolution, and game_data_t::y_resolution.

Referenced by DrawCrosshairs().

 {
     static float aaccuracy = XMLSupport::parse_float( vs_config->getVariable( "graphics", "circle_accuracy", "0.1" ) );
     float segmag =
         ( Vector( wid*g_game.x_resolution, 0,
                   0 )
          -Vector( wid*g_game.x_resolution*cos( 2.*M_PI/360.0 ), hei*g_game.y_resolution*sin( 2.*M_PI/360.0 ), 0 ) ).Magnitude();
     int accuracy = (int) ( 360.0f*aaccuracy*(1.0f < segmag ? 1.0 : segmag) );
     if (accuracy < 4) accuracy = 4;
     //const int accuracy=((wid*g_game.x_resolution)+(hei*g_game.y_resolution))*M_PI;
     GFXBegin( GFXLINESTRIP );
     float iaccuracy = 1.0f/accuracy;
     for (int i = 0; i <= accuracy; i++)
         GFXVertex3f( x+wid*cos( i*2.*M_PI*iaccuracy ), y+hei*sin( i*2.*M_PI*iaccuracy ), 0 );
     GFXEnd();
 }

void GFXClear	(	const GFXBOOL	colorbuffer,
		const GFXBOOL	depthbuffer,
		const GFXBOOL	stencilbuffer
	)

Clears the Z buffer. Also clears color buffer if GFXTRUE passed in.

Definition at line 66 of file gl_misc.cpp.

Referenced by bootstrap_draw(), Background::Draw(), WindowManager::draw(), GameCockpit::Draw(), BaseInterface::Room::BaseShip::Draw(), Mesh::ProcessUndrawnMeshes(), Mesh::ProcessZFarMeshes(), Briefing::Render(), and StartGUIFrame().

 {
     glClear( (colorbuffer ? GL_COLOR_BUFFER_BIT : 0)
             |(depthbuffer ? GL_DEPTH_BUFFER_BIT : 0)
             |(stencilbuffer ? GL_STENCIL_BUFFER_BIT : 0) );
 }

void GFXColor4f	(	const float	r,
		const float	g,
		const float	b,
		const float	a
	)

Specifies a color for henceforth drawn vertices to share.

Definition at line 214 of file gl_misc.cpp.

Referenced by bootstrap_draw(), GuiTexture::draw(), Bolt::Draw(), GameStarSystem::Draw(), GameCockpit::Draw(), BaseInterface::Room::Draw(), NavigationSystem::Draw(), UnivMap::Draw(), DrawDamageFlash(), DrawDockingBoxes(), DrawGlutMouse(), DrawShield(), GFXVertexList::EndDrawState(), Box::ProcessDrawQueue(), Logo::ProcessDrawQueue(), SetupCloakState(), and StartGUIFrame().

 {
     glColor4f( r, g, b, a );
 }

void GFXColorf ( const GFXColor & col)

Specifies a color for henceforth drawn vertices to share.

Definition at line 192 of file gl_misc.cpp.

References GFXColor::r.

 {
     glColor4fv( &col.r );
 }

GFXColor GFXColorf ( )

Gets the current color.

Definition at line 197 of file gl_misc.cpp.

 {
     float col[4];
     glGetFloatv( GL_CURRENT_COLOR, col );     //It's best this way, we don't use it much, anyway.
     return GFXColor( col[0], col[1], col[2], col[3] );
 }

int GFXCreateList ( )

Creates a Display list. 0 is returned if no memory is avail for a display list.

Definition at line 298 of file gl_misc.cpp.

Referenced by CreateLists(), and GFXVertexList::RefreshDisplayList().

 {
     glGetError();
     int list = glGenLists( 1 );
     glNewList( list, GL_COMPILE );
     return list;
 }

void GFXCullFace ( const enum POLYFACE polyface)

Sets the facecull mode.

Definition at line 123 of file gl_misc.cpp.

References GFXBACK, GFXFRONT, and GFXFRONTANDBACK.

Referenced by setupGLState().

 {
     GLenum face;
     switch (polyface)
     {
     case GFXFRONT:
         face = GL_FRONT;
         break;
     default:
     case GFXBACK:
         face = GL_BACK;
         break;
     case GFXFRONTANDBACK:
         face = GL_FRONT_AND_BACK;
         break;
     }
     glCullFace( face );
 }

void GFXDeleteList ( int list)

Removes a display list from application memory.

Definition at line 321 of file gl_misc.cpp.

Referenced by GFXVertexList::RefreshDisplayList(), and GFXVertexList::~GFXVertexList().

 {
     if ( glIsList( list ) )
         glDeleteLists( list, 1 );
 }

Vector GFXDeviceToEye	(	int	x,
		int	y
	)

convertes eyespace to 3space at the near plane

Definition at line 343 of file gl_misc.cpp.

References b, f, g_game, GFXGetFrustumVars(), Vector, game_data_t::x_resolution, and game_data_t::y_resolution.

Referenced by MouseCoordinate().

 {
     float l, r, b, t, n, f;
     GFXGetFrustumVars( true, &l, &r, &b, &t, &n, &f );
     return Vector( (l+(r-l)*float(x)/g_game.x_resolution),
                   (t+(b-t)*float(y)/g_game.y_resolution),
                   n );
 }

void GFXEnd ( )

Ends the current set of polytypes.

Definition at line 293 of file gl_misc.cpp.

 {
     glEnd();
 }

GFXBOOL GFXEndList ( )

Ends the display list call. Returns false if unsuccessful.

Definition at line 306 of file gl_misc.cpp.

Referenced by CreateLists(), and GFXVertexList::RefreshDisplayList().

 {
     glEndList();
     return glGetError() != GL_OUT_OF_MEMORY;
 }

void GFXEndScene ( )

Flushes and Swaps buffers.

Definition at line 60 of file gl_misc.cpp.

References winsys_swap_buffers().

Referenced by base_main_loop(), bootstrap_draw(), gamemenu_draw(), nav_main_loop(), GameUniverse::StartDraw(), and GameUniverse::StartGFX().

 {
     glFlush();
     winsys_swap_buffers();     //swap the buffers
 }

void GFXGetPolygonOffset	(	float *	factor,
		float *	units
	)

Definition at line 81 of file gl_misc.cpp.

References last_factor, and last_units.

Referenced by SetupSpecMapFirstPass().

 {
     *factor = last_factor;
     *units  = last_units;
 }

void GFXLineWidth ( const float size)

Sets the line width in pixels of a GFXLINE.

Definition at line 147 of file gl_misc.cpp.

Referenced by Radar::SphereDisplay::DrawBackground(), Radar::BubbleDisplay::DrawBackground(), Radar::PlaneDisplay::DrawGround(), DrawOneTargetBox(), Radar::PlaneDisplay::DrawTarget(), Radar::SphereDisplay::DrawTargetMarker(), Radar::BubbleDisplay::DrawTargetMarker(), Radar::PlaneDisplay::DrawTargetMarker(), and setupGLState().

 {
     glLineWidth( size );
 }

bool GFXMultiTexAvailable ( )

Definition at line 32 of file gl_misc.cpp.

References gl_options, and gl_options_t::Multitexture.

 {
     return gl_options.Multitexture != 0;
 }

void GFXNormal ( const Vector & n)

Specifies a notmal with 1 vector.

Definition at line 263 of file gl_misc.cpp.

 {
     glNormal3fv( &n.i );
 }

void GFXNormal3f	(	const float	i,
		const float	j,
		const float	k
	)

Specifies a normal with 3 floats.

Definition at line 258 of file gl_misc.cpp.

 {
     glNormal3f( i, j, k );
 }

void GFXPointSize ( const float size)

Sets the size in pixels of a GFXPOINT.

Definition at line 142 of file gl_misc.cpp.

Referenced by Radar::SphereDisplay::Draw(), Radar::BubbleDisplay::Draw(), Radar::PlaneDisplay::Draw(), ParticleTrail::DrawAndUpdate(), DrawGun(), Radar::PlaneDisplay::DrawTarget(), Radar::SphereDisplay::DrawTrack(), and Radar::BubbleDisplay::DrawTrack().

 {
     glPointSize( size );
 }

void GFXPolygonMode ( const enum POLYMODE polymode)

Sets the polygon rasterization mode.

Definition at line 104 of file gl_misc.cpp.

References GFXFILLMODE, GFXLINEMODE, and GFXPOINTMODE.

Referenced by setupGLState().

 {
     GLenum mode;
     switch (polymode)
     {
     default:
     case GFXFILLMODE:
         mode = GL_FILL;
         break;
     case GFXLINEMODE:
         mode = GL_LINE;
         break;
     case GFXPOINTMODE:
         mode = GL_POINT;
         break;
     }
     glPolygonMode( GL_FRONT_AND_BACK, mode );
 }

void GFXPolygonOffset	(	float	factor,
		float	units
	)

Sets Depth Offset for polgyons.

Definition at line 87 of file gl_misc.cpp.

References last_factor, and last_units.

Referenced by Logo::ProcessDrawQueue(), SphereMesh::ProcessDrawQueue(), CityLights::ProcessDrawQueue(), quadsquare::Render(), setupGLState(), and SetupSpecMapFirstPass().

 {
     last_factor = factor;
     last_units  = units;
     if (!factor && !units) {
         glDisable( GL_POLYGON_OFFSET_FILL );
         glDisable( GL_POLYGON_OFFSET_POINT );
         glDisable( GL_POLYGON_OFFSET_LINE );
         glPolygonOffset( 0, 0 );
     } else {
         glPolygonOffset( factor, units );
         glEnable( GL_POLYGON_OFFSET_FILL );
         glEnable( GL_POLYGON_OFFSET_POINT );
         glEnable( GL_POLYGON_OFFSET_LINE );
     }
 }

void GFXSubwindow	(	int	x,
		int	y,
		int	xsize,
		int	ysize
	)

Creates a subwindow with the current parameters for center and size.

Definition at line 327 of file gl_misc.cpp.

References g_game, game_data_t::x_resolution, and game_data_t::y_resolution.

Referenced by GFXSubwindow(), Camera::RestoreViewPort(), and Camera::UpdateGFX().

 {
     glViewport( x, y, xsize, ysize );
     glScissor( x, y, xsize, ysize );
     if (x == 0 && y == 0 && xsize == g_game.x_resolution && ysize == g_game.y_resolution)
         glDisable( GL_SCISSOR_TEST );
     else
         glEnable( GL_SCISSOR_TEST );
 }

void GFXSubwindow	(	float	x,
		float	y,
		float	xsize,
		float	ysize
	)

Definition at line 337 of file gl_misc.cpp.

References g_game, GFXSubwindow(), game_data_t::x_resolution, and game_data_t::y_resolution.

 {
     GFXSubwindow( int(x*g_game.x_resolution), int(y*g_game.y_resolution), int(xsize*g_game.x_resolution),
                  int(ysize*g_game.y_resolution) );
 }

void GFXTexCoord224f	(	const float	s,
		const float	t,
		const float	s2,
		const float	t2,
		const float	s3,
		const float	t3,
		const float	u3,
		const float	v3
	)

Specifies four texture coordinates for a given vertex (3 textures)

Definition at line 237 of file gl_misc.cpp.

References gl_options, glMultiTexCoord2fARB_p, glMultiTexCoord4fARB_p, and gl_options_t::Multitexture.

Referenced by GFXVertexList::RefreshDisplayList().

 {
 #if !defined (IRIX)
     if (gl_options.Multitexture) {
         glMultiTexCoord2fARB_p( GL_TEXTURE0_ARB, s, t );
         glMultiTexCoord2fARB_p( GL_TEXTURE1_ARB, s2, t2 );
         glMultiTexCoord4fARB_p( GL_TEXTURE2_ARB, s3, t3, u3, v3 );
     } else
 #endif
     {
         glTexCoord2f( s, t );
     }
 }

void GFXTexCoord2f	(	const float	s,
		const float	t
	)

Specifies a pair of texture coordinates for given vertex.

Definition at line 219 of file gl_misc.cpp.

Referenced by AnimationDraw(), ParticlePoint::Draw(), GuiTexture::draw(), VSSprite::Draw(), Animation::DrawAsVSSprite(), DrawDamageFlash(), DrawHUDSprite(), Animation::DrawNoTransform(), and Animation::DrawNow().

 {
     glTexCoord2f( s, t );
 }

void GFXTexCoord4f	(	const float	s,
		const float	t,
		const float	u,
		const float	v
	)

Specifies four texture coordinates for a given vertex (2 textures)

Definition at line 224 of file gl_misc.cpp.

References gl_options, glMultiTexCoord2fARB_p, and gl_options_t::Multitexture.

Referenced by VSSprite::Draw(), Animation::DrawAsVSSprite(), Animation::DrawNoTransform(), and Animation::DrawNow().

 {
 #if !defined (IRIX)
     if (gl_options.Multitexture) {
         glMultiTexCoord2fARB_p( GL_TEXTURE0_ARB, s, t );
         glMultiTexCoord2fARB_p( GL_TEXTURE1_ARB, u, v );
     } else
 #endif
     {
         glTexCoord2f( s, t );
     }
 }

void GFXVertex3d	(	const double	x,
		const double	y,
		const double	z
	)

Definition at line 278 of file gl_misc.cpp.

Referenced by ParticlePoint::Draw(), DrawGun(), and DrawShield().

 {
     glVertex3d( x, y, z );
 }

void GFXVertex3f	(	const float	x,
		const float	y,
		const float	z
	)

Specifies a vertex with 3 floats.

Definition at line 268 of file gl_misc.cpp.

 {
     glVertex3f( x, y, z );
 }

void GFXVertex3f	(	const double	x,
		const double	y,
		const double	z
	)

Definition at line 273 of file gl_misc.cpp.

 {
     glVertex3d( x, y, z );
 }

void GFXVertexf ( const Vector & v)

Specifies a vertex with a vector.

Definition at line 283 of file gl_misc.cpp.

Referenced by ParticlePoint::Draw(), GuiTexture::draw(), VSSprite::Draw(), BaseInterface::Room::Draw(), Animation::DrawAsVSSprite(), Radar::SphereDisplay::DrawBackground(), DrawFrustum(), Radar::PlaneDisplay::DrawGround(), DrawGun(), DrawHUDSprite(), DrawITTSLine(), DrawITTSMark(), DrawOneTargetBox(), Radar::PlaneDisplay::DrawTarget(), Radar::PlaneDisplay::DrawTargetMarker(), Radar::SphereDisplay::DrawTrack(), and Radar::BubbleDisplay::DrawTrack().

 {
     glVertex3f( v.i, v.j, v.k );
 }

void GFXVertexf ( const QVector & v)

Definition at line 288 of file gl_misc.cpp.

 {
     glVertex3d( v.i, v.j, v.k );
 }

Variable Documentation

float last_factor = 0

static

Definition at line 78 of file gl_misc.cpp.

Referenced by GFXGetPolygonOffset(), and GFXPolygonOffset().

float last_units = 0

static

Definition at line 79 of file gl_misc.cpp.

Referenced by GFXGetPolygonOffset(), and GFXPolygonOffset().

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation