void
R_SetDefaultState(void)
{
qglClearColor(1, 0, 0.5, 0.5);
qglCullFace(GL_FRONT);
qglEnable(GL_TEXTURE_2D);
qglEnable(GL_ALPHA_TEST);
qglAlphaFunc(GL_GREATER, 0.666);
qglDisable(GL_DEPTH_TEST);
qglDisable(GL_CULL_FACE);
qglDisable(GL_BLEND);
qglColor4f(1, 1, 1, 1);
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
qglShadeModel(GL_FLAT);
R_TextureMode(gl_texturemode->string);
R_TextureAlphaMode(gl_texturealphamode->string);
R_TextureSolidMode(gl_texturesolidmode->string);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
R_TexEnv(GL_REPLACE);
if (qglPointParameterfEXT)
{
float attenuations[3];
attenuations[0] = gl_particle_att_a->value;
attenuations[1] = gl_particle_att_b->value;
attenuations[2] = gl_particle_att_c->value;
/* GL_POINT_SMOOTH is not implemented by some OpenGL
drivers, especially the crappy Mesa3D backends like
i915.so. That the points are squares and not circles
is not a problem by Quake II! */
qglEnable(GL_POINT_SMOOTH);
qglPointParameterfEXT(GL_POINT_SIZE_MIN_EXT,
gl_particle_min_size->value);
qglPointParameterfEXT(GL_POINT_SIZE_MAX_EXT,
gl_particle_max_size->value);
qglPointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT, attenuations);
}
if (qglColorTableEXT && gl_ext_palettedtexture->value)
{
qglEnable(GL_SHARED_TEXTURE_PALETTE_EXT);
R_SetTexturePalette(d_8to24table);
}
}
static void DrawSkySideInner( struct image_s *image, const int mins[2], const int maxs[2] ) {
int s, t;
GL_Bind( image );
//qglDisable (GL_BLEND);
qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
qglEnable( GL_BLEND );
GL_TexEnv( GL_MODULATE );
for ( t = mins[1] + HALF_SKY_SUBDIVISIONS; t < maxs[1] + HALF_SKY_SUBDIVISIONS; t++ )
{
qglBegin( GL_TRIANGLE_STRIP );
for ( s = mins[0] + HALF_SKY_SUBDIVISIONS; s <= maxs[0] + HALF_SKY_SUBDIVISIONS; s++ )
{
qglTexCoord2fv( s_skyTexCoords[t][s] );
qglVertex3fv( s_skyPoints[t][s] );
qglTexCoord2fv( s_skyTexCoords[t + 1][s] );
qglVertex3fv( s_skyPoints[t + 1][s] );
}
qglEnd();
}
qglDisable( GL_BLEND );
}
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
//qglClearColor (1,0, 0.5 , 0.5); // NeVo - f*****g ugly color!
qglClearColor (0,0,0,1); // NeVo - clear to black
qglCullFace(GL_FRONT);
qglEnable(GL_TEXTURE_2D);
qglEnable(GL_ALPHA_TEST);
qglAlphaFunc(GL_GREATER, 0.666);
qglDisable (GL_DEPTH_TEST);
qglDisable (GL_CULL_FACE);
qglDisable (GL_BLEND);
qglColor4f (1,1,1,1);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglShadeModel (GL_FLAT);
GL_TextureMode( gl_texturemode->string );
GL_TextureAlphaMode( gl_texturealphamode->string );
GL_TextureSolidMode( gl_texturesolidmode->string );
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_TexEnv( GL_REPLACE );
if ( qglPointParameterfEXT )
{
float attenuations[3];
attenuations[0] = gl_particle_att_a->value;
attenuations[1] = gl_particle_att_b->value;
attenuations[2] = gl_particle_att_c->value;
qglEnable( GL_POINT_SMOOTH );
qglPointParameterfEXT( GL_POINT_SIZE_MIN_EXT, gl_particle_min_size->value );
qglPointParameterfEXT( GL_POINT_SIZE_MAX_EXT, gl_particle_max_size->value );
qglPointParameterfvEXT( GL_DISTANCE_ATTENUATION_EXT, attenuations );
}
if ( qglColorTableEXT && gl_ext_palettedtexture->value )
{
qglEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
GL_SetTexturePalette( d_8to24table );
}
GL_UpdateSwapInterval();
}
/*
==================
GL_BlendFunc
==================
*/
void GL_BlendFunc (uint src, uint dst){
if (glState.blendSrc == src && glState.blendDst == dst)
return;
glState.blendSrc = src;
glState.blendDst = dst;
qglBlendFunc(src, dst);
}
void Terrain_DrawCam( terrainMesh_t *pm ) {
qglColor3f( 1,1,1 );
qglPushAttrib( GL_ALL_ATTRIB_BITS );
if ( g_bPatchWireFrame ) {
if( pm->bSelected ) {
qglLineWidth( 2 );
} else {
qglLineWidth( 1 );
}
qglDisable( GL_CULL_FACE );
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
qglDisable( GL_TEXTURE_2D );
if ( g_PrefsDlg.m_bGLLighting ) {
qglDisable( GL_LIGHTING );
}
DrawTerrain( pm, pm->bSelected, true );
if ( g_PrefsDlg.m_bGLLighting ) {
qglEnable( GL_LIGHTING );
}
qglEnable( GL_CULL_FACE );
qglLineWidth( 1 );
} else {
qglEnable( GL_CULL_FACE );
qglCullFace( GL_FRONT );
// draw the textured polys
DrawTerrain( pm, pm->bSelected, true );
// if selected, draw the red tint on the polys
if( pm->bSelected ) { // && ( g_qeglobals.d_savedinfo.include & INCLUDE_CAMERATINT ) ) {
qglColor4f( 1.0, 0.0, 0.0, 0.3 );
qglEnable( GL_BLEND );
qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
DrawTerrain( pm, pm->bSelected );
qglColor3f( 1, 1, 1 );
}
// draw the backside poly outlines
qglCullFace( GL_BACK );
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
qglDisable( GL_BLEND );
DrawTerrain( pm, pm->bSelected, true );
}
qglPopAttrib();
}
//Water caustics
void EmitCausticPolys (const glpoly_t *p)
{
int i, nv;
float txm, tym;
const float *v;
txm = (float)cos(r_newrefdef.time*0.3f) * 0.3f;
tym = (float)sin(r_newrefdef.time*-0.3f) * 0.6f;
GL_SelectTexture(1);
qglDisable(GL_TEXTURE_2D);
GL_SelectTexture(0);
qglEnable(GL_BLEND);
qglBlendFunc(GL_ZERO, GL_SRC_COLOR);
qglColor4f (1, 1, 1, 0.275f);
GL_Bind(r_caustictexture->texnum);
v = p->verts[0];
nv = p->numverts;
qglBegin (GL_POLYGON);
for (i = 0; i < nv; i++, v += VERTEXSIZE) {
qglTexCoord2f (v[3]+txm, v[4]+tym);
qglVertex3fv (v);
}
qglEnd();
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglColor4fv(colorWhite);
qglDisable(GL_BLEND);
GL_SelectTexture(1);
qglEnable(GL_TEXTURE_2D);
GL_SelectTexture(0);
}
/*
================
rvGEWorkspace::RenderGrid
Renders the grid on top of the user interface
================
*/
void rvGEWorkspace::RenderGrid ( void )
{
float x;
float y;
float step;
idVec4& color = mApplication->GetOptions().GetGridColor ( );
// See if the grid is off before rendering it
if ( !mApplication->GetOptions().GetGridVisible ( ))
{
return;
}
qglEnable(GL_BLEND);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglColor4f ( color[0], color[1], color[2], 0.5f );
qglBegin ( GL_LINES );
step = mApplication->GetOptions().GetGridWidth ( ) * g_ZoomScales[mZoom];
for ( x = mRect.x + mRect.w; x >= mRect.x ; x -= step )
{
qglVertex2f ( x, mRect.y );
qglVertex2f ( x, mRect.y + mRect.h );
}
step = mApplication->GetOptions().GetGridHeight ( ) * g_ZoomScales[mZoom];
for ( y = mRect.y + mRect.h; y >= mRect.y ; y -= step )
{
qglVertex2f ( mRect.x, y );
qglVertex2f ( mRect.x + mRect.w, y );
}
qglEnd ( );
qglDisable(GL_BLEND);
qglColor3f ( color[0], color[1], color[2] );
qglBegin ( GL_LINES );
step = mApplication->GetOptions().GetGridWidth ( ) * g_ZoomScales[mZoom];
for ( x = mRect.x + mRect.w; x >= mRect.x ; x -= step * 4 )
{
qglVertex2f ( x, mRect.y );
qglVertex2f ( x, mRect.y + mRect.h );
}
step = mApplication->GetOptions().GetGridHeight ( ) * g_ZoomScales[mZoom];
for ( y = mRect.y + mRect.h; y >= mRect.y ; y -= step * 4 )
{
qglVertex2f ( mRect.x, y );
qglVertex2f ( mRect.x + mRect.w, y );
}
qglEnd ( );
}
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
qglClearColor (1.0f, 0.0f, 0.5f, 0.5f);
qglCullFace(GL_FRONT);
qglEnable(GL_TEXTURE_2D);
qglEnable(GL_ALPHA_TEST);
qglAlphaFunc(GL_GREATER, 0.666f);
qglDisable (GL_DEPTH_TEST);
qglDisable (GL_CULL_FACE);
qglDisable (GL_BLEND);
qglColor4fv(colorWhite);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglShadeModel (GL_FLAT);
GL_TextureMode( gl_texturemode->string );
GL_TextureAlphaMode( gl_texturealphamode->string );
GL_TextureSolidMode( gl_texturesolidmode->string );
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_TexEnv( GL_REPLACE );
if ( qglPointParameterfEXT && FLOAT_NE_ZERO(gl_ext_pointparameters->value))
{
float attenuations[3];
attenuations[0] = gl_particle_att_a->value;
attenuations[1] = gl_particle_att_b->value;
attenuations[2] = gl_particle_att_c->value;
qglEnable( GL_POINT_SMOOTH );
qglPointParameterfEXT( GL_POINT_SIZE_MIN_EXT, gl_particle_min_size->value );
qglPointParameterfEXT( GL_POINT_SIZE_MAX_EXT, gl_particle_max_size->value );
qglPointParameterfvEXT( GL_DISTANCE_ATTENUATION_EXT, attenuations );
}
gl_swapinterval->modified = true;
GL_UpdateSwapInterval();
}
static inline void drawCharTex(GLTexture_t * tex, SDL_Rect * src, SDL_Rect * dest,
Uint8 r, Uint8 g, Uint8 b, Uint8 a)
{
GLint cropRect[4];
/*
GLfloat texColor[4];
static const float onediv255 = 1.0f / 255.0f;
*/
if( !dest->h || !dest->w )
return;
qglBindTexture(GL_TEXTURE_2D, tex->id);
qglColor4x(r * 0x100, g * 0x100, b * 0x100, 200 * 0x100 );
//glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND);
qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
qglEnable(GL_BLEND);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
#if 0
dest->x = dest->x*320/screen_width;
dest->y = dest->y*200/screen_height;
dest->w = dest->w*320/screen_width;
dest->h = dest->h*200/screen_height;
DrawQuad(dest->x, 200 - dest->y - dest->h, dest->w, dest->h,
0, 0, 1/*tex->w*/, 1/*tex->h*/);
#endif
cropRect[0] = 0;
cropRect[1] = tex->h;
cropRect[2] = tex->w;
cropRect[3] = -tex->h;
if(src)
{//left down width hight
cropRect[0] = src->x;
cropRect[1] = src->h; // TODO: check if height works as expected in inverted GL coords
cropRect[2] = src->w;
cropRect[3] = -src->h; // TODO: check if height works as expected in inverted GL coords
}
qglTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect);
glDrawTexiOES(dest->x, screen_height - dest->y - dest->h, 0, dest->w, dest->h);
}
void Gui_Render()
{
const text_shader_description *shader = renderer.shaderManager->getTextShader();
screenSize[0] = screen_info.w;
screenSize[1] = screen_info.h;
qglUseProgramObjectARB(shader->program);
qglUniform1iARB(shader->sampler, 0);
qglUniform2fvARB(shader->screenSize, 1, screenSize);
qglUniform1fARB(shader->colorReplace, 0.0f);
qglPushAttrib(GL_ENABLE_BIT | GL_PIXEL_MODE_BIT | GL_COLOR_BUFFER_BIT);
qglPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT | GL_CLIENT_VERTEX_ARRAY_BIT);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglPolygonMode(GL_FRONT, GL_FILL);
qglFrontFace(GL_CCW);
qglEnable(GL_BLEND);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglDisable(GL_ALPHA_TEST);
if(World_GetPlayer() && main_inventory_manager)
{
Gui_DrawInventory(engine_frame_time);
}
Gui_DrawNotifier(engine_frame_time);
qglUseProgramObjectARB(shader->program);
qglDepthMask(GL_FALSE);
qglPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if(screen_info.crosshair != 0)
{
Gui_DrawCrosshair();
}
Gui_DrawBars();
qglUniform1fARB(shader->colorReplace, 1.0f);
GLText_RenderStrings();
Con_Draw(engine_frame_time);
qglUniform1fARB(shader->colorReplace, 0.0f);
qglDepthMask(GL_TRUE);
qglPopClientAttrib();
qglPopAttrib();
}
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
qglClearDepth( 1.0f );
qglCullFace(GL_FRONT);
qglColor4f (1,1,1,1);
// initialize downstream texture unit if we're running
// in a multitexture environment
if ( qglActiveTextureARB ) {
GL_SelectTexture( 1 );
GL_TextureMode( r_textureMode->string );
GL_TexEnv( GL_MODULATE );
qglDisable( GL_TEXTURE_2D );
GL_SelectTexture( 0 );
}
qglEnable(GL_TEXTURE_2D);
GL_TextureMode( r_textureMode->string );
GL_TexEnv( GL_MODULATE );
qglShadeModel( GL_SMOOTH );
qglDepthFunc( GL_LEQUAL );
// the vertex array is always enabled, but the color and texture
// arrays are enabled and disabled around the compiled vertex array call
qglEnableClientState (GL_VERTEX_ARRAY);
//
// make sure our GL state vector is set correctly
//
glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglDepthMask( GL_TRUE );
qglDisable( GL_DEPTH_TEST );
qglEnable( GL_SCISSOR_TEST );
qglDisable( GL_CULL_FACE );
qglDisable( GL_BLEND );
qglDisable( GL_ALPHA_TEST );
qglBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
#ifdef _XBOX
qglDisable( GL_LIGHTING );
#endif
}
static void DrawSkySideInner(struct image_s *image, const int mins[2], const int maxs[2])
{
int s, t;
GL_Bind(image);
GLfloat vtx[3 * 1024]; // arbitrary sized
GLfloat tex[2 * 1024];
int idx;
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (glcol)
{
qglDisableClientState(GL_COLOR_ARRAY);
}
if (!text)
{
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
//qglDisable (GL_BLEND);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglEnable(GL_BLEND);
GL_TexEnv(GL_MODULATE);
for (t = mins[1] + HALF_SKY_SUBDIVISIONS; t < maxs[1] + HALF_SKY_SUBDIVISIONS; t++)
{
idx = 0;
for (s = mins[0] + HALF_SKY_SUBDIVISIONS; s <= maxs[0] + HALF_SKY_SUBDIVISIONS; s++)
{
memcpy(tex + idx * 2, s_skyTexCoords[t][s], sizeof(GLfloat) * 2);
memcpy(vtx + idx * 3, s_skyPoints[t][s], sizeof(GLfloat) * 3);
idx++;
memcpy(tex + idx * 2, s_skyTexCoords[t + 1][s], sizeof(GLfloat) * 2);
memcpy(vtx + idx * 3, s_skyPoints[t + 1][s], sizeof(GLfloat) * 3);
idx++;
}
qglVertexPointer(3, GL_FLOAT, 0, vtx);
qglTexCoordPointer(2, GL_FLOAT, 0, tex);
qglDrawArrays(GL_TRIANGLE_STRIP, 0, idx);
}
qglDisable(GL_BLEND);
}
void CCamWnd::DrawLightRadius(brush_t* pBrush)
{
// if lighting
int nRadius = Brush_LightRadius(pBrush);
if (nRadius > 0)
{
Brush_SetLightColor(pBrush);
qglEnable (GL_BLEND);
qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglDisable (GL_TEXTURE_2D);
qglEnable(GL_TEXTURE_2D);
qglDisable(GL_BLEND);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
}
}
/*
================
DrawVerts
================
*/
static void DrawVerts( optIsland_t *island ) {
optVertex_t *vert;
if ( !dmapGlobals.drawflag ) {
return;
}
qglEnable( GL_BLEND );
qglBlendFunc( GL_ONE, GL_ONE );
qglColor3f( 0.3f, 0.3f, 0.3f );
qglPointSize( 3 );
qglBegin( GL_POINTS );
for ( vert = island->verts ; vert ; vert = vert->islandLink ) {
qglVertex3fv( vert->pv.ToFloatPtr() );
}
qglEnd();
qglDisable( GL_BLEND );
qglFlush();
}
void CWindingMsg::Draw2D( VIEWTYPE vt ){
int i;
int nDim1 = ( vt == YZ ) ? 1 : 0;
int nDim2 = ( vt == XY ) ? 1 : 2;
qglColor3f( 1.0f,0.f,0.0f );
qglPointSize( 4 );
qglBegin( GL_POINTS );
for ( i = 0; i < numpoints; i++ )
qglVertex2f( wt[i][nDim1], wt[i][nDim2] );
qglEnd();
qglPointSize( 1 );
qglEnable( GL_BLEND );
qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
qglColor4f( 0.133f,0.4f,1.0f,0.5f );
qglBegin( GL_POLYGON );
for ( i = 0; i < numpoints; i++ )
qglVertex2f( wt[i][nDim1], wt[i][nDim2] );
qglEnd();
qglDisable( GL_BLEND );
}
/*
* RB_SetState
*/
void RB_SetState( int state )
{
int diff;
diff = rb.gl.state ^ state;
if( !diff )
return;
if( diff & ( GLSTATE_SRCBLEND_MASK|GLSTATE_DSTBLEND_MASK ) )
{
if( state & ( GLSTATE_SRCBLEND_MASK|GLSTATE_DSTBLEND_MASK ) )
{
int blendsrc, blenddst;
switch( state & GLSTATE_SRCBLEND_MASK )
{
case GLSTATE_SRCBLEND_ZERO:
blendsrc = GL_ZERO;
break;
case GLSTATE_SRCBLEND_DST_COLOR:
blendsrc = GL_DST_COLOR;
break;
case GLSTATE_SRCBLEND_ONE_MINUS_DST_COLOR:
blendsrc = GL_ONE_MINUS_DST_COLOR;
break;
case GLSTATE_SRCBLEND_SRC_ALPHA:
blendsrc = GL_SRC_ALPHA;
break;
case GLSTATE_SRCBLEND_ONE_MINUS_SRC_ALPHA:
blendsrc = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLSTATE_SRCBLEND_DST_ALPHA:
blendsrc = GL_DST_ALPHA;
break;
case GLSTATE_SRCBLEND_ONE_MINUS_DST_ALPHA:
blendsrc = GL_ONE_MINUS_DST_ALPHA;
break;
default:
case GLSTATE_SRCBLEND_ONE:
blendsrc = GL_ONE;
break;
}
switch( state & GLSTATE_DSTBLEND_MASK )
{
case GLSTATE_DSTBLEND_ONE:
blenddst = GL_ONE;
break;
case GLSTATE_DSTBLEND_SRC_COLOR:
blenddst = GL_SRC_COLOR;
break;
case GLSTATE_DSTBLEND_ONE_MINUS_SRC_COLOR:
blenddst = GL_ONE_MINUS_SRC_COLOR;
break;
case GLSTATE_DSTBLEND_SRC_ALPHA:
blenddst = GL_SRC_ALPHA;
break;
case GLSTATE_DSTBLEND_ONE_MINUS_SRC_ALPHA:
blenddst = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLSTATE_DSTBLEND_DST_ALPHA:
blenddst = GL_DST_ALPHA;
break;
case GLSTATE_DSTBLEND_ONE_MINUS_DST_ALPHA:
blenddst = GL_ONE_MINUS_DST_ALPHA;
break;
default:
case GLSTATE_DSTBLEND_ZERO:
blenddst = GL_ZERO;
break;
}
qglEnable( GL_BLEND );
qglBlendFunc( blendsrc, blenddst );
}
else
{
qglDisable( GL_BLEND );
}
}
if( diff & GLSTATE_ALPHAFUNC )
{
int alphafunc = state & GLSTATE_ALPHAFUNC;
if( alphafunc )
{
qglEnable( GL_ALPHA_TEST );
if( alphafunc == GLSTATE_AFUNC_GT0 )
qglAlphaFunc( GL_GREATER, 0 );
else if( alphafunc == GLSTATE_AFUNC_LT128 )
qglAlphaFunc( GL_LESS, 0.5f );
else
qglAlphaFunc( GL_GEQUAL, 0.5f );
}
else
{
qglDisable( GL_ALPHA_TEST );
}
}
if( diff & GLSTATE_NO_COLORWRITE )
{
if( state & GLSTATE_NO_COLORWRITE )
{
qglShadeModel( GL_FLAT );
qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
}
else
{
qglShadeModel( GL_SMOOTH );
qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
}
}
if( diff & GLSTATE_DEPTHFUNC_EQ )
{
if( state & GLSTATE_DEPTHFUNC_EQ )
qglDepthFunc( GL_EQUAL );
else
qglDepthFunc( GL_LEQUAL );
}
if( diff & GLSTATE_DEPTHWRITE )
{
if( state & GLSTATE_DEPTHWRITE )
qglDepthMask( GL_TRUE );
else
qglDepthMask( GL_FALSE );
}
if( diff & GLSTATE_NO_DEPTH_TEST )
{
if( state & GLSTATE_NO_DEPTH_TEST )
qglDisable( GL_DEPTH_TEST );
else
qglEnable( GL_DEPTH_TEST );
}
if( diff & GLSTATE_OFFSET_FILL )
{
if( state & GLSTATE_OFFSET_FILL )
qglEnable( GL_POLYGON_OFFSET_FILL );
else
qglDisable( GL_POLYGON_OFFSET_FILL );
}
if( diff & GLSTATE_STENCIL_TEST )
{
if( glConfig.stencilEnabled )
{
if( state & GLSTATE_STENCIL_TEST )
qglEnable( GL_STENCIL_TEST );
else
qglDisable( GL_STENCIL_TEST );
}
}
rb.gl.state = state;
}
void CCamWnd::Cam_Draw()
{
brush_t *brush;
face_t *face;
float screenaspect;
float yfov;
double start, end;
int i;
/*
FILE *f = fopen("g:/nardo/raduffy/editorhack.dat", "w");
if (f != NULL) {
fwrite(&m_Camera.origin[0], sizeof(float), 1, f);
fwrite(&m_Camera.origin[1], sizeof(float), 1, f);
fwrite(&m_Camera.origin[2], sizeof(float), 1, f);
fwrite(&m_Camera.angles[PITCH], sizeof(float), 1, f);
fwrite(&m_Camera.angles[YAW], sizeof(float), 1, f);
fclose(f);
}
*/
if (!active_brushes.next)
return; // not valid yet
if (m_Camera.timing)
start = Sys_DoubleTime ();
//
// clear
//
QE_CheckOpenGLForErrors();
qglViewport(0, 0, m_Camera.width, m_Camera.height);
qglScissor(0, 0, m_Camera.width, m_Camera.height);
qglClearColor (g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][0],
g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][1],
g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][2], 0);
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//
// set up viewpoint
//
vec5_t lightPos;
if (g_PrefsDlg.m_bGLLighting)
{
qglEnable(GL_LIGHTING);
//qglEnable(GL_LIGHT0);
lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
lightPos[3] = 1.0;
qglLightModelfv(GL_LIGHT_MODEL_AMBIENT, lightPos);
//qglLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
//lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
//qglLightfv(GL_LIGHT0, GL_AMBIENT, lightPos);
}
else
{
qglDisable(GL_LIGHTING);
}
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
screenaspect = (float)m_Camera.width / m_Camera.height;
yfov = 2*atan((float)m_Camera.height / m_Camera.width)*180/Q_PI;
qgluPerspective (yfov, screenaspect, 2, 8192);
qglRotatef (-90, 1, 0, 0); // put Z going up
qglRotatef (90, 0, 0, 1); // put Z going up
qglRotatef (m_Camera.angles[0], 0, 1, 0);
qglRotatef (-m_Camera.angles[1], 0, 0, 1);
qglTranslatef (-m_Camera.origin[0], -m_Camera.origin[1], -m_Camera.origin[2]);
Cam_BuildMatrix ();
//if (m_Camera.draw_mode == cd_light)
//{
// if (g_PrefsDlg.m_bGLLighting)
// {
// VectorCopy(m_Camera.origin, lightPos);
// lightPos[3] = 1;
// qglLightfv(GL_LIGHT0, GL_POSITION, lightPos);
// }
//}
InitCull ();
//
// draw stuff
//
GLfloat lAmbient[] = {1.0, 1.0, 1.0, 1.0};
switch (m_Camera.draw_mode)
{
case cd_wire:
qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_TEXTURE_1D);
qglDisable(GL_BLEND);
qglDisable(GL_DEPTH_TEST);
qglColor3f(1.0, 1.0, 1.0);
// qglEnable (GL_LINE_SMOOTH);
break;
case cd_solid:
qglCullFace(GL_FRONT);
qglEnable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_BLEND);
qglEnable(GL_DEPTH_TEST);
qglDepthFunc (GL_LEQUAL);
break;
case cd_texture:
qglCullFace(GL_FRONT);
qglEnable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglEnable(GL_TEXTURE_2D);
qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglDisable(GL_BLEND);
qglEnable(GL_DEPTH_TEST);
qglDepthFunc (GL_LEQUAL);
break;
case cd_blend:
qglCullFace(GL_FRONT);
qglEnable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglEnable(GL_TEXTURE_2D);
qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglDisable(GL_DEPTH_TEST);
qglEnable (GL_BLEND);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
}
qglMatrixMode(GL_TEXTURE);
m_nNumTransBrushes = 0;
for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
{
//DrawLightRadius(brush);
if (CullBrush (brush))
continue;
if (FilterBrush (brush))
continue;
if ((brush->brush_faces->texdef.flags & (SURF_TRANS33 | SURF_TRANS66)) || (brush->brush_faces->d_texture->bFromShader && brush->brush_faces->d_texture->fTrans != 1.0))
{
m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
}
else
{
//-- if (brush->patchBrush)
//-- m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
//-- else
Brush_Draw(brush);
}
}
if (g_PrefsDlg.m_bGLLighting)
{
qglDisable (GL_LIGHTING);
}
//
//qglDepthMask ( 0 ); // Don't write to depth buffer
qglEnable ( GL_BLEND );
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
for ( i = 0; i < m_nNumTransBrushes; i++ )
Brush_Draw (m_TransBrushes[i]);
//qglDepthMask ( 1 ); // Ok, write now
qglMatrixMode(GL_PROJECTION);
//
// now draw selected brushes
//
if (g_PrefsDlg.m_bGLLighting)
{
qglEnable (GL_LIGHTING);
}
qglTranslatef (g_qeglobals.d_select_translate[0], g_qeglobals.d_select_translate[1], g_qeglobals.d_select_translate[2]);
qglMatrixMode(GL_TEXTURE);
brush_t* pList = (g_bClipMode && g_pSplitList) ? g_pSplitList : &selected_brushes;
// draw normally
for (brush = pList->next ; brush != pList ; brush=brush->next)
{
//DrawLightRadius(brush);
//if (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint)
// continue;
Brush_Draw(brush);
}
// blend on top
qglMatrixMode(GL_PROJECTION);
qglDisable (GL_LIGHTING);
qglColor4f(1.0, 0.0, 0.0, 0.3);
qglEnable (GL_BLEND);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglDisable (GL_TEXTURE_2D);
for (brush = pList->next ; brush != pList ; brush=brush->next)
{
if ( (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint) ||
(brush->terrainBrush && g_qeglobals.d_select_mode == sel_terrainpoint) )
continue;
for (face=brush->brush_faces ; face ; face=face->next)
Face_Draw( face );
}
int nCount = g_ptrSelectedFaces.GetSize();
if (nCount > 0)
{
for (int i = 0; i < nCount; i++)
{
face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
Face_Draw(selFace);
}
}
// non-zbuffered outline
qglDisable (GL_BLEND);
qglDisable (GL_DEPTH_TEST);
qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
qglColor3f (1, 1, 1);
for (brush = pList->next ; brush != pList ; brush=brush->next)
{
if (g_qeglobals.dontDrawSelectedOutlines || (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint) ||
(brush->terrainBrush && g_qeglobals.d_select_mode == sel_terrainpoint))
continue;
for (face=brush->brush_faces ; face ; face=face->next)
Face_Draw( face );
}
// edge / vertex flags
if (g_qeglobals.d_select_mode == sel_vertex)
{
qglPointSize (4);
qglColor3f (0,1,0);
qglBegin (GL_POINTS);
for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
qglVertex3fv (g_qeglobals.d_points[i]);
qglEnd ();
qglPointSize (1);
}
else if (g_qeglobals.d_select_mode == sel_edge)
{
float *v1, *v2;
qglPointSize (4);
qglColor3f (0,0,1);
qglBegin (GL_POINTS);
for (i=0 ; i<g_qeglobals.d_numedges ; i++)
{
v1 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p1];
v2 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p2];
qglVertex3f ( (v1[0]+v2[0])*0.5,(v1[1]+v2[1])*0.5,(v1[2]+v2[2])*0.5);
}
qglEnd ();
qglPointSize (1);
}
g_splineList->draw(static_cast<qboolean>(g_qeglobals.d_select_mode == sel_addpoint || g_qeglobals.d_select_mode == sel_editpoint));
if (g_qeglobals.selectObject && (g_qeglobals.d_select_mode == sel_addpoint || g_qeglobals.d_select_mode == sel_editpoint)) {
g_qeglobals.selectObject->drawSelection();
}
//
// draw pointfile
//
qglEnable(GL_DEPTH_TEST);
DrawPathLines ();
if (g_qeglobals.d_pointfile_display_list)
{
Pointfile_Draw();
// glCallList (g_qeglobals.d_pointfile_display_list);
}
// bind back to the default texture so that we don't have problems
// elsewhere using/modifying texture maps between contexts
qglBindTexture( GL_TEXTURE_2D, 0 );
#if 0
// area selection hack
if (g_qeglobals.d_select_mode == sel_area)
{
qglEnable (GL_BLEND);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglColor4f(0.0, 0.0, 1.0, 0.25);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglRectfv(g_qeglobals.d_vAreaTL, g_qeglobals.d_vAreaBR);
qglDisable (GL_BLEND);
}
#endif
qglFinish();
QE_CheckOpenGLForErrors();
// Sys_EndWait();
if (m_Camera.timing)
{
end = Sys_DoubleTime ();
Sys_Printf ("Camera: %i ms\n", (int)(1000*(end-start)));
}
}
/**
* Draws simple colored rectangle with given parameters.
*/
void Gui_DrawRect(const GLfloat &x, const GLfloat &y,
const GLfloat &width, const GLfloat &height,
const float colorUpperLeft[], const float colorUpperRight[],
const float colorLowerLeft[], const float colorLowerRight[],
const int &blendMode,
const GLuint texture)
{
switch(blendMode)
{
case BM_HIDE:
return;
case BM_MULTIPLY:
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
break;
case BM_SIMPLE_SHADE:
qglBlendFunc(GL_ONE_MINUS_SRC_COLOR, GL_ONE_MINUS_SRC_ALPHA);
break;
case BM_SCREEN:
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
default:
case BM_OPAQUE:
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
};
GLfloat x0 = x;
GLfloat y0 = y + height;
GLfloat x1 = x + width;
GLfloat y1 = y;
GLfloat *v, rectArray[32];
v = rectArray;
*v++ = x0; *v++ = y0;
*v++ = 0.0f; *v++ = 0.0f;
vec4_copy(v, colorUpperLeft);
v += 4;
*v++ = x1; *v++ = y0;
*v++ = 1.0f; *v++ = 0.0f;
vec4_copy(v, colorUpperRight);
v += 4;
*v++ = x1; *v++ = y1;
*v++ = 1.0f; *v++ = 1.0f;
vec4_copy(v, colorLowerRight);
v += 4;
*v++ = x0; *v++ = y1;
*v++ = 0.0f; *v++ = 1.0f;
vec4_copy(v, colorLowerLeft);
if(qglIsTexture(texture))
{
qglBindTexture(GL_TEXTURE_2D, texture);
}
else
{
BindWhiteTexture();
}
qglBindBufferARB(GL_ARRAY_BUFFER, rectBuffer);
qglBufferDataARB(GL_ARRAY_BUFFER, sizeof(GLfloat[32]), rectArray, GL_DYNAMIC_DRAW);
qglVertexPointer(2, GL_FLOAT, 8 * sizeof(GLfloat), (void *)0);
qglTexCoordPointer(2, GL_FLOAT, 8 * sizeof(GLfloat), (void *)sizeof(GLfloat[2]));
qglColorPointer(4, GL_FLOAT, 8 * sizeof(GLfloat), (void *)sizeof(GLfloat[4]));
qglDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
// Draw the glow blur over the screen additively.
static inline void RB_DrawGlowOverlay()
{
qglDisable (GL_CLIP_PLANE0);
GL_Cull( CT_TWO_SIDED );
// Go into orthographic 2d mode.
qglMatrixMode(GL_PROJECTION);
qglPushMatrix();
qglLoadIdentity();
qglOrtho(0, glConfig.vidWidth, glConfig.vidHeight, 0, -1, 1);
qglMatrixMode(GL_MODELVIEW);
qglPushMatrix();
qglLoadIdentity();
GL_State(GLS_DEPTHTEST_DISABLE);
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_TEXTURE_RECTANGLE_EXT );
// For debug purposes.
if ( r_DynamicGlow->integer != 2 )
{
// Render the normal scene texture.
qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.sceneImage );
qglBegin(GL_QUADS);
qglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
qglTexCoord2f( 0, glConfig.vidHeight );
qglVertex2f( 0, 0 );
qglTexCoord2f( 0, 0 );
qglVertex2f( 0, glConfig.vidHeight );
qglTexCoord2f( glConfig.vidWidth, 0 );
qglVertex2f( glConfig.vidWidth, glConfig.vidHeight );
qglTexCoord2f( glConfig.vidWidth, glConfig.vidHeight );
qglVertex2f( glConfig.vidWidth, 0 );
qglEnd();
}
// One and Inverse Src Color give a very soft addition, while one one is a bit stronger. With one one we can
// use additive blending through multitexture though.
if ( r_DynamicGlowSoft->integer )
{
qglBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_COLOR );
}
else
{
qglBlendFunc( GL_ONE, GL_ONE );
}
qglEnable( GL_BLEND );
// Now additively render the glow texture.
qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.blurImage );
qglBegin(GL_QUADS);
qglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
qglTexCoord2f( 0, r_DynamicGlowHeight->integer );
qglVertex2f( 0, 0 );
qglTexCoord2f( 0, 0 );
qglVertex2f( 0, glConfig.vidHeight );
qglTexCoord2f( r_DynamicGlowWidth->integer, 0 );
qglVertex2f( glConfig.vidWidth, glConfig.vidHeight );
qglTexCoord2f( r_DynamicGlowWidth->integer, r_DynamicGlowHeight->integer );
qglVertex2f( glConfig.vidWidth, 0 );
qglEnd();
qglDisable( GL_TEXTURE_RECTANGLE_EXT );
qglEnable( GL_TEXTURE_2D );
qglBlendFunc( GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR );
qglDisable( GL_BLEND );
qglMatrixMode(GL_PROJECTION);
qglPopMatrix();
qglMatrixMode(GL_MODELVIEW);
qglPopMatrix();
}
/*
====================
GL_State
This routine is responsible for setting the most commonly changed state
====================
*/
void GL_State( int stateBits ) {
int diff;
if ( !r_useStateCaching.GetBool() || backEnd.glState.forceGlState ) {
// make sure everything is set all the time, so we
// can see if our delta checking is screwing up
diff = -1;
backEnd.glState.forceGlState = false;
} else {
diff = stateBits ^ backEnd.glState.glStateBits;
if ( !diff ) {
return;
}
}
//
// check depthFunc bits
//
if ( diff & ( GLS_DEPTHFUNC_EQUAL | GLS_DEPTHFUNC_LESS | GLS_DEPTHFUNC_ALWAYS ) ) {
if ( stateBits & GLS_DEPTHFUNC_EQUAL ) {
qglDepthFunc( GL_EQUAL );
} else if ( stateBits & GLS_DEPTHFUNC_ALWAYS ) {
qglDepthFunc( GL_ALWAYS );
} else {
qglDepthFunc( GL_LEQUAL );
}
}
//
// check blend bits
//
if ( diff & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) ) {
GLenum srcFactor, dstFactor;
switch ( stateBits & GLS_SRCBLEND_BITS ) {
case GLS_SRCBLEND_ZERO:
srcFactor = GL_ZERO;
break;
case GLS_SRCBLEND_ONE:
srcFactor = GL_ONE;
break;
case GLS_SRCBLEND_DST_COLOR:
srcFactor = GL_DST_COLOR;
break;
case GLS_SRCBLEND_ONE_MINUS_DST_COLOR:
srcFactor = GL_ONE_MINUS_DST_COLOR;
break;
case GLS_SRCBLEND_SRC_ALPHA:
srcFactor = GL_SRC_ALPHA;
break;
case GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA:
srcFactor = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLS_SRCBLEND_DST_ALPHA:
srcFactor = GL_DST_ALPHA;
break;
case GLS_SRCBLEND_ONE_MINUS_DST_ALPHA:
srcFactor = GL_ONE_MINUS_DST_ALPHA;
break;
case GLS_SRCBLEND_ALPHA_SATURATE:
srcFactor = GL_SRC_ALPHA_SATURATE;
break;
default:
srcFactor = GL_ONE; // to get warning to shut up
common->Error( "GL_State: invalid src blend state bits\n" );
break;
}
switch ( stateBits & GLS_DSTBLEND_BITS ) {
case GLS_DSTBLEND_ZERO:
dstFactor = GL_ZERO;
break;
case GLS_DSTBLEND_ONE:
dstFactor = GL_ONE;
break;
case GLS_DSTBLEND_SRC_COLOR:
dstFactor = GL_SRC_COLOR;
break;
case GLS_DSTBLEND_ONE_MINUS_SRC_COLOR:
dstFactor = GL_ONE_MINUS_SRC_COLOR;
break;
case GLS_DSTBLEND_SRC_ALPHA:
dstFactor = GL_SRC_ALPHA;
break;
case GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA:
dstFactor = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLS_DSTBLEND_DST_ALPHA:
dstFactor = GL_DST_ALPHA;
break;
case GLS_DSTBLEND_ONE_MINUS_DST_ALPHA:
dstFactor = GL_ONE_MINUS_DST_ALPHA;
break;
default:
dstFactor = GL_ONE; // to get warning to shut up
common->Error( "GL_State: invalid dst blend state bits\n" );
break;
}
qglBlendFunc( srcFactor, dstFactor );
}
//
// check depthmask
//
if ( diff & GLS_DEPTHMASK ) {
if ( stateBits & GLS_DEPTHMASK ) {
qglDepthMask( GL_FALSE );
} else {
qglDepthMask( GL_TRUE );
}
}
//
// check colormask
//
if ( diff & (GLS_REDMASK|GLS_GREENMASK|GLS_BLUEMASK|GLS_ALPHAMASK) ) {
GLboolean r, g, b, a;
r = ( stateBits & GLS_REDMASK ) ? 0 : 1;
g = ( stateBits & GLS_GREENMASK ) ? 0 : 1;
b = ( stateBits & GLS_BLUEMASK ) ? 0 : 1;
a = ( stateBits & GLS_ALPHAMASK ) ? 0 : 1;
qglColorMask( r, g, b, a );
}
//
// fill/line mode
//
if ( diff & GLS_POLYMODE_LINE ) {
if ( stateBits & GLS_POLYMODE_LINE ) {
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
} else {
qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
}
}
//
// alpha test
//
if ( diff & GLS_ATEST_BITS ) {
switch ( stateBits & GLS_ATEST_BITS ) {
case 0:
qglDisable( GL_ALPHA_TEST );
break;
case GLS_ATEST_EQ_255:
qglEnable( GL_ALPHA_TEST );
qglAlphaFunc( GL_EQUAL, 1 );
break;
case GLS_ATEST_LT_128:
qglEnable( GL_ALPHA_TEST );
qglAlphaFunc( GL_LESS, 0.5 );
break;
case GLS_ATEST_GE_128:
qglEnable( GL_ALPHA_TEST );
qglAlphaFunc( GL_GEQUAL, 0.5 );
break;
default:
assert( 0 );
break;
}
}
backEnd.glState.glStateBits = stateBits;
}
/*
** GL_State
**
** This routine is responsible for setting the most commonly changed state
** in Q3.
*/
void GL_State( unsigned long stateBits )
{
unsigned long diff = stateBits ^ glState.glStateBits;
if ( !diff )
{
return;
}
//
// check depthFunc bits
//
if ( diff & GLS_DEPTHFUNC_BITS )
{
if ( stateBits & GLS_DEPTHFUNC_EQUAL )
{
qglDepthFunc( GL_EQUAL );
}
else if ( stateBits & GLS_DEPTHFUNC_GREATER)
{
qglDepthFunc( GL_GREATER );
}
else
{
qglDepthFunc( GL_LEQUAL );
}
}
//
// check blend bits
//
if ( diff & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) )
{
uint32_t oldState = glState.glStateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
uint32_t newState = stateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
uint32_t storedState = glState.storedGlState & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
if (oldState == 0)
{
qglEnable( GL_BLEND );
}
else if (newState == 0)
{
qglDisable( GL_BLEND );
}
if (newState != 0 && storedState != newState)
{
GLenum srcFactor = GL_ONE, dstFactor = GL_ONE;
glState.storedGlState &= ~( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
glState.storedGlState |= newState;
switch ( stateBits & GLS_SRCBLEND_BITS )
{
case GLS_SRCBLEND_ZERO:
srcFactor = GL_ZERO;
break;
case GLS_SRCBLEND_ONE:
srcFactor = GL_ONE;
break;
case GLS_SRCBLEND_DST_COLOR:
srcFactor = GL_DST_COLOR;
break;
case GLS_SRCBLEND_ONE_MINUS_DST_COLOR:
srcFactor = GL_ONE_MINUS_DST_COLOR;
break;
case GLS_SRCBLEND_SRC_ALPHA:
srcFactor = GL_SRC_ALPHA;
break;
case GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA:
srcFactor = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLS_SRCBLEND_DST_ALPHA:
srcFactor = GL_DST_ALPHA;
break;
case GLS_SRCBLEND_ONE_MINUS_DST_ALPHA:
srcFactor = GL_ONE_MINUS_DST_ALPHA;
break;
case GLS_SRCBLEND_ALPHA_SATURATE:
srcFactor = GL_SRC_ALPHA_SATURATE;
break;
default:
ri.Error( ERR_DROP, "GL_State: invalid src blend state bits" );
break;
}
switch ( stateBits & GLS_DSTBLEND_BITS )
{
case GLS_DSTBLEND_ZERO:
dstFactor = GL_ZERO;
break;
case GLS_DSTBLEND_ONE:
dstFactor = GL_ONE;
break;
case GLS_DSTBLEND_SRC_COLOR:
dstFactor = GL_SRC_COLOR;
break;
case GLS_DSTBLEND_ONE_MINUS_SRC_COLOR:
dstFactor = GL_ONE_MINUS_SRC_COLOR;
break;
case GLS_DSTBLEND_SRC_ALPHA:
dstFactor = GL_SRC_ALPHA;
break;
case GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA:
dstFactor = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLS_DSTBLEND_DST_ALPHA:
dstFactor = GL_DST_ALPHA;
break;
case GLS_DSTBLEND_ONE_MINUS_DST_ALPHA:
dstFactor = GL_ONE_MINUS_DST_ALPHA;
break;
default:
ri.Error( ERR_DROP, "GL_State: invalid dst blend state bits" );
break;
}
qglBlendFunc( srcFactor, dstFactor );
}
}
//
// check depthmask
//
if ( diff & GLS_DEPTHMASK_TRUE )
{
if ( stateBits & GLS_DEPTHMASK_TRUE )
{
qglDepthMask( GL_TRUE );
}
else
{
qglDepthMask( GL_FALSE );
}
}
//
// fill/line mode
//
if ( diff & GLS_POLYMODE_LINE )
{
if ( stateBits & GLS_POLYMODE_LINE )
{
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
}
else
{
qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
}
}
//
// depthtest
//
if ( diff & GLS_DEPTHTEST_DISABLE )
{
if ( stateBits & GLS_DEPTHTEST_DISABLE )
{
qglDisable( GL_DEPTH_TEST );
}
else
{
qglEnable( GL_DEPTH_TEST );
}
}
//
// alpha test
//
if ( diff & GLS_ATEST_BITS )
{
uint32_t oldState = glState.glStateBits & GLS_ATEST_BITS;
uint32_t newState = stateBits & GLS_ATEST_BITS;
uint32_t storedState = glState.storedGlState & GLS_ATEST_BITS;
if (oldState == 0)
{
qglEnable(GL_ALPHA_TEST);
}
else if (newState == 0)
{
qglDisable(GL_ALPHA_TEST);
}
if (newState != 0 && storedState != newState)
{
glState.storedGlState &= ~GLS_ATEST_BITS;
glState.storedGlState |= newState;
switch ( newState )
{
case GLS_ATEST_GT_0:
qglAlphaFunc( GL_GREATER, 0.0f );
break;
case GLS_ATEST_LT_80:
qglAlphaFunc( GL_LESS, 0.5f );
break;
case GLS_ATEST_GE_80:
qglAlphaFunc( GL_GEQUAL, 0.5f );
break;
}
}
}
glState.glStateBits = stateBits;
}
// Renders the input text at the current location with the current color.
// The X position of the current location is used to place the left edge of the text image,
// where the text image bounds are defined as the logical extents of the line of text.
// The Y position of the current location is used to place the bottom of the text image.
// You should offset the Y position by the amount returned by gtk_glwidget_font_descent()
// if you want to place the baseline of the text image at the current Y position.
// Note: A problem with this function is that if the lower left corner of the text falls
// just a hair outside of the viewport (meaning the current raster position is invalid),
// then no text will be rendered. The solution to this is a very hacky one. You can search
// Google for "glDrawPixels clipping".
void gtk_glwidget_print_string( const char *s ){
// The idea for this code initially came from the font-pangoft2.c example that comes with GtkGLExt.
PangoLayout *layout;
PangoRectangle log_rect;
FT_Bitmap bitmap;
unsigned char *begin_bitmap_buffer;
GLfloat color[4];
GLint previous_unpack_alignment;
GLboolean previous_blend_enabled;
GLint previous_blend_func_src;
GLint previous_blend_func_dst;
GLfloat previous_red_bias;
GLfloat previous_green_bias;
GLfloat previous_blue_bias;
GLfloat previous_alpha_scale;
if ( !_debug_font_created ) {
Error( "Programming error: gtk_glwidget_print_string() called but font does not exist; "
"you should have called gtk_glwidget_create_font() first" );
}
layout = pango_layout_new( ft2_context );
pango_layout_set_width( layout, -1 ); // -1 no wrapping. All text on one line.
pango_layout_set_text( layout, s, -1 ); // -1 null-terminated string.
pango_layout_get_extents( layout, NULL, &log_rect );
if ( log_rect.width > 0 && log_rect.height > 0 ) {
bitmap.rows = font_ascent + font_descent;
bitmap.width = PANGO_PIXELS_CEIL( log_rect.width );
bitmap.pitch = -bitmap.width; // Rendering it "upside down" for OpenGL.
begin_bitmap_buffer = (unsigned char *) g_malloc( bitmap.rows * bitmap.width );
memset( begin_bitmap_buffer, 0, bitmap.rows * bitmap.width );
bitmap.buffer = begin_bitmap_buffer + ( bitmap.rows - 1 ) * bitmap.width; // See pitch above.
bitmap.num_grays = 0xff;
bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
pango_ft2_render_layout_subpixel( &bitmap, layout, -log_rect.x,
y_offset_bitmap_render_pango_units );
qglGetFloatv( GL_CURRENT_COLOR, color );
// Save state. I didn't see any OpenGL push/pop operations for these.
// Question: Is saving/restoring this state necessary? Being safe.
qglGetIntegerv( GL_UNPACK_ALIGNMENT, &previous_unpack_alignment );
previous_blend_enabled = qglIsEnabled( GL_BLEND );
qglGetIntegerv( GL_BLEND_SRC, &previous_blend_func_src );
qglGetIntegerv( GL_BLEND_DST, &previous_blend_func_dst );
qglGetFloatv( GL_RED_BIAS, &previous_red_bias );
qglGetFloatv( GL_GREEN_BIAS, &previous_green_bias );
qglGetFloatv( GL_BLUE_BIAS, &previous_blue_bias );
qglGetFloatv( GL_ALPHA_SCALE, &previous_alpha_scale );
qglPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
qglEnable( GL_BLEND );
qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
qglPixelTransferf( GL_RED_BIAS, color[0] );
qglPixelTransferf( GL_GREEN_BIAS, color[1] );
qglPixelTransferf( GL_BLUE_BIAS, color[2] );
qglPixelTransferf( GL_ALPHA_SCALE, color[3] );
qglDrawPixels( bitmap.width, bitmap.rows,
GL_ALPHA, GL_UNSIGNED_BYTE, begin_bitmap_buffer );
g_free( begin_bitmap_buffer );
// Restore state in reverse order of how we set it.
qglPixelTransferf( GL_ALPHA_SCALE, previous_alpha_scale );
qglPixelTransferf( GL_BLUE_BIAS, previous_blue_bias );
qglPixelTransferf( GL_GREEN_BIAS, previous_green_bias );
qglPixelTransferf( GL_RED_BIAS, previous_red_bias );
qglBlendFunc( previous_blend_func_src, previous_blend_func_dst );
if ( !previous_blend_enabled ) {
qglDisable( GL_BLEND );
}
qglPixelStorei( GL_UNPACK_ALIGNMENT, previous_unpack_alignment );
}
g_object_unref( G_OBJECT( layout ) );
}
//R_DRAWCEL
static void R_DrawCel( int numIndexes, const glIndex_t *indexes ) {
int primitives;
if(
//. ignore the 2d projection. do i smell the HUD?
(backEnd.projection2D == qtrue) ||
//. ignore general entitites that are sprites. SEE NOTE #3.
(backEnd.currentEntity->e.reType == RT_SPRITE) ||
//. ignore these liquids. why? ever see liquid with tris on the surface? exactly. SEE NOTE #4.
(tess.shader->contentFlags & (CONTENTS_WATER | CONTENTS_LAVA | CONTENTS_SLIME | CONTENTS_FOG)) ||
//. ignore things that are two sided, meaning mostly things that have transparency. SEE NOTE #1.
(tess.shader->cullType == CT_TWO_SIDED)
) {
return;
}
primitives = r_primitives->integer;
// default is to use triangles if compiled vertex arrays are present
if ( primitives == 0 ) {
if ( qglLockArraysEXT ) {
primitives = 2;
} else {
primitives = 1;
}
}
//. correction for mirrors. SEE NOTE #2.
if(backEnd.viewParms.isMirror == qtrue) { qglCullFace (GL_FRONT); }
else { qglCullFace (GL_BACK); }
qglEnable (GL_BLEND);
qglBlendFunc (GL_SRC_ALPHA ,GL_ONE_MINUS_SRC_ALPHA);
qglColor3f (0.0f,0.0f,0.0f);
qglLineWidth( (float) r_celoutline->integer );
if(primitives == 2) {
qglDrawElements( GL_TRIANGLES, numIndexes, GL_INDEX_TYPE, indexes );
} else if(primitives == 1) {
R_DrawStripElements( numIndexes, indexes, qglArrayElement );
} else if(primitives == 3) {
R_DrawStripElements( numIndexes, indexes, R_ArrayElementDiscrete );
}
//. correction for mirrors. SEE NOTE #2.
if(backEnd.viewParms.isMirror == qtrue) { qglCullFace (GL_BACK); }
else { qglCullFace (GL_FRONT); }
qglDisable (GL_BLEND);
return;
/* Notes
1. this is going to be a pain in the arse. it fixes things like light `beams` from being cel'd but it
also will ignore any other shader set with no culling. this usually is everything that is translucent.
but this is a good hack to clean up the screen untill something more selective comes along. or who knows
group desision might actually be that this is liked. if so i take back calling it a `hack`, lol.
= bob.
2. mirrors display correctly because the normals of the displayed are inverted of normal space. so to
continue to have them display correctly, we must invert them inversely from a normal inversion.
= bob.
3. this turns off a lot of space hogging sprite cel outlines. picture if you will five people in a small
room all shooting rockets. each smoke puff gets a big black square around it, each explosion gets a big
black square around it, and now nobody can see eachother because everyones screen is solid black.
= bob.
4. ignoring liquids means you will not get black tris lines all over the top of your liquid. i put this in
after seeing the lava on q3dm7 and water on q3ctf2 that had black lines all over the top, making the
liquids look solid instead of... liquid.
= bob.
*/
}
/*
================
rvGESelectionMgr::Render
Render the selections including the move/size bars
================
*/
void rvGESelectionMgr::Render ( void )
{
if ( !mSelections.Num ( ) )
{
return;
}
qglEnable(GL_BLEND);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
UpdateRectangle ( );
qglPolygonMode(GL_FRONT_AND_BACK, GL_LINE );
idVec4& color = gApp.GetOptions().GetSelectionColor ( );
qglColor4f ( color[0],color[1],color[2], 1.0f );
qglBegin(GL_LINE_LOOP );
qglVertex2f ( mRect.x, mRect.y );
qglVertex2f ( mRect.x + mRect.w, mRect.y );
qglVertex2f ( mRect.x + mRect.w, mRect.y + mRect.h);
qglVertex2f ( mRect.x, mRect.y + mRect.h);
qglEnd ( );
qglColor4f ( color[0],color[1],color[2], 0.75f );
int i;
for ( i = 0; i < mSelections.Num(); i ++ )
{
rvGEWindowWrapper* wrapper;
idRectangle rect;
wrapper = rvGEWindowWrapper::GetWrapper ( mSelections[i] );
assert ( wrapper );
rect = wrapper->GetScreenRect ( );
mWorkspace->WorkspaceToWindow ( rect );
if ( i == 0 )
{
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL );
qglBegin ( GL_TRIANGLES );
qglVertex2f ( rect.x, rect.y );
qglVertex2f ( rect.x + GUIED_GRABSIZE, rect.y );
qglVertex2f ( rect.x, rect.y + GUIED_GRABSIZE );
qglEnd ( );
}
qglPolygonMode(GL_FRONT_AND_BACK, GL_LINE );
qglBegin(GL_LINE_LOOP );
qglVertex2f ( rect.x, rect.y );
qglVertex2f ( rect.x + rect.w, rect.y );
qglVertex2f ( rect.x + rect.w, rect.y + rect.h);
qglVertex2f ( rect.x, rect.y + rect.h);
qglEnd ( );
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL );
qglBegin( GL_QUADS );
qglVertex2f ( rect.x + (rect.w - GUIED_CENTERSIZE) / 2, rect.y + (rect.h - GUIED_CENTERSIZE) / 2 );
qglVertex2f ( rect.x + (rect.w + GUIED_CENTERSIZE) / 2, rect.y + (rect.h - GUIED_CENTERSIZE) / 2 );
qglVertex2f ( rect.x + (rect.w + GUIED_CENTERSIZE) / 2, rect.y + (rect.h + GUIED_CENTERSIZE) / 2 );
qglVertex2f ( rect.x + (rect.w - GUIED_CENTERSIZE) / 2, rect.y + (rect.h + GUIED_CENTERSIZE) / 2 );
qglEnd ( );
}
if ( mExpression )
{
return;
}
qglPolygonMode(GL_FRONT_AND_BACK, GL_LINE );
qglColor4f ( color[0],color[1],color[2], 1.0f );
qglBegin(GL_QUADS);
// Top Left
qglVertex2f ( mRect.x - GUIED_GRABSIZE, mRect.y - GUIED_GRABSIZE );
qglVertex2f ( mRect.x - 1, mRect.y - GUIED_GRABSIZE );
qglVertex2f ( mRect.x - 1, mRect.y - 1 );
qglVertex2f ( mRect.x - GUIED_GRABSIZE, mRect.y - 1 );
// Left
qglVertex2f ( mRect.x - GUIED_GRABSIZE, mRect.y + mRect.h / 2 - GUIED_GRABSIZE / 2);
qglVertex2f ( mRect.x - 1, mRect.y + mRect.h / 2 - GUIED_GRABSIZE / 2 );
qglVertex2f ( mRect.x - 1, mRect.y + mRect.h / 2 + GUIED_GRABSIZE / 2 );
qglVertex2f ( mRect.x - GUIED_GRABSIZE, mRect.y + mRect.h / 2 + GUIED_GRABSIZE / 2 );
// Bototm Left
qglVertex2f ( mRect.x - GUIED_GRABSIZE, mRect.y + mRect.h + 1 );
qglVertex2f ( mRect.x - 1, mRect.y + mRect.h + 1 );
qglVertex2f ( mRect.x - 1, mRect.y + mRect.h + GUIED_GRABSIZE );
qglVertex2f ( mRect.x - GUIED_GRABSIZE, mRect.y + mRect.h + GUIED_GRABSIZE );
// Bottom
qglVertex2f ( mRect.x - GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y + mRect.h + 1 );
qglVertex2f ( mRect.x + GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y + mRect.h + 1 );
qglVertex2f ( mRect.x + GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y + mRect.h + GUIED_GRABSIZE );
qglVertex2f ( mRect.x - GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y + mRect.h + GUIED_GRABSIZE );
// Bottom Right
qglVertex2f ( mRect.x + mRect.w + 1, mRect.y + mRect.h + 1 );
qglVertex2f ( mRect.x + mRect.w + GUIED_GRABSIZE, mRect.y + mRect.h + 1 );
qglVertex2f ( mRect.x + mRect.w + GUIED_GRABSIZE, mRect.y + mRect.h + GUIED_GRABSIZE );
qglVertex2f ( mRect.x + mRect.w + 1, mRect.y + mRect.h + GUIED_GRABSIZE );
// Right
qglVertex2f ( mRect.x + mRect.w + 1, mRect.y + mRect.h / 2 - GUIED_GRABSIZE / 2);
qglVertex2f ( mRect.x + mRect.w + GUIED_GRABSIZE, mRect.y + mRect.h / 2 - GUIED_GRABSIZE / 2 );
qglVertex2f ( mRect.x + mRect.w + GUIED_GRABSIZE, mRect.y + mRect.h / 2 + GUIED_GRABSIZE / 2 );
qglVertex2f ( mRect.x + mRect.w + 1, mRect.y + mRect.h / 2 + GUIED_GRABSIZE / 2 );
// Top Right
qglVertex2f ( mRect.x + mRect.w + 1, mRect.y - GUIED_GRABSIZE );
qglVertex2f ( mRect.x + mRect.w + GUIED_GRABSIZE, mRect.y - GUIED_GRABSIZE );
qglVertex2f ( mRect.x + mRect.w + GUIED_GRABSIZE, mRect.y - 1 );
qglVertex2f ( mRect.x + mRect.w + 1, mRect.y - 1 );
// Top
qglVertex2f ( mRect.x - GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y - GUIED_GRABSIZE );
qglVertex2f ( mRect.x + GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y - GUIED_GRABSIZE );
qglVertex2f ( mRect.x + GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y - 1 );
qglVertex2f ( mRect.x - GUIED_GRABSIZE / 2 + mRect.w / 2, mRect.y - 1 );
qglEnd ( );
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL );
}
/*
** GL_State
**
** This routine is responsible for setting the most commonly changed state
** in Q3.
*/
void GL_State( unsigned long stateBits )
{
unsigned long diff = stateBits ^ glState.glStateBits;
if ( !diff )
{
return;
}
//
// check depthFunc bits
//
if ( diff & GLS_DEPTHFUNC_EQUAL )
{
if ( stateBits & GLS_DEPTHFUNC_EQUAL )
{
qglDepthFunc( GL_EQUAL );
}
else
{
qglDepthFunc( GL_LEQUAL );
}
}
//
// check blend bits
//
if ( diff & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) )
{
GLenum srcFactor, dstFactor;
if ( stateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) )
{
switch ( stateBits & GLS_SRCBLEND_BITS )
{
case GLS_SRCBLEND_ZERO:
srcFactor = GL_ZERO;
break;
case GLS_SRCBLEND_ONE:
srcFactor = GL_ONE;
break;
case GLS_SRCBLEND_DST_COLOR:
srcFactor = GL_DST_COLOR;
break;
case GLS_SRCBLEND_ONE_MINUS_DST_COLOR:
srcFactor = GL_ONE_MINUS_DST_COLOR;
break;
case GLS_SRCBLEND_SRC_ALPHA:
srcFactor = GL_SRC_ALPHA;
break;
case GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA:
srcFactor = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLS_SRCBLEND_DST_ALPHA:
srcFactor = GL_DST_ALPHA;
break;
case GLS_SRCBLEND_ONE_MINUS_DST_ALPHA:
srcFactor = GL_ONE_MINUS_DST_ALPHA;
break;
case GLS_SRCBLEND_ALPHA_SATURATE:
srcFactor = GL_SRC_ALPHA_SATURATE;
break;
default:
srcFactor = GL_ONE; // to get warning to shut up
ri.Error( ERR_DROP, "GL_State: invalid src blend state bits\n" );
break;
}
switch ( stateBits & GLS_DSTBLEND_BITS )
{
case GLS_DSTBLEND_ZERO:
dstFactor = GL_ZERO;
break;
case GLS_DSTBLEND_ONE:
dstFactor = GL_ONE;
break;
case GLS_DSTBLEND_SRC_COLOR:
dstFactor = GL_SRC_COLOR;
break;
case GLS_DSTBLEND_ONE_MINUS_SRC_COLOR:
dstFactor = GL_ONE_MINUS_SRC_COLOR;
break;
case GLS_DSTBLEND_SRC_ALPHA:
dstFactor = GL_SRC_ALPHA;
break;
case GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA:
dstFactor = GL_ONE_MINUS_SRC_ALPHA;
break;
case GLS_DSTBLEND_DST_ALPHA:
dstFactor = GL_DST_ALPHA;
break;
case GLS_DSTBLEND_ONE_MINUS_DST_ALPHA:
dstFactor = GL_ONE_MINUS_DST_ALPHA;
break;
default:
dstFactor = GL_ONE; // to get warning to shut up
ri.Error( ERR_DROP, "GL_State: invalid dst blend state bits\n" );
break;
}
qglEnable( GL_BLEND );
qglBlendFunc( srcFactor, dstFactor );
}
else
{
qglDisable( GL_BLEND );
}
}
//
// check depthmask
//
if ( diff & GLS_DEPTHMASK_TRUE )
{
if ( stateBits & GLS_DEPTHMASK_TRUE )
{
qglDepthMask( GL_TRUE );
}
else
{
qglDepthMask( GL_FALSE );
}
}
//
// fill/line mode
//
if ( diff & GLS_POLYMODE_LINE )
{
if ( stateBits & GLS_POLYMODE_LINE )
{
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
}
else
{
qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
}
}
//
// depthtest
//
if ( diff & GLS_DEPTHTEST_DISABLE )
{
if ( stateBits & GLS_DEPTHTEST_DISABLE )
{
qglDisable( GL_DEPTH_TEST );
}
else
{
qglEnable( GL_DEPTH_TEST );
}
}
//
// alpha test
//
if ( diff & GLS_ATEST_BITS )
{
switch ( stateBits & GLS_ATEST_BITS )
{
case 0:
qglDisable( GL_ALPHA_TEST );
break;
case GLS_ATEST_GT_0:
qglEnable( GL_ALPHA_TEST );
qglAlphaFunc( GL_GREATER, 0.0f );
break;
case GLS_ATEST_LT_80:
qglEnable( GL_ALPHA_TEST );
qglAlphaFunc( GL_LESS, 0.5f );
break;
case GLS_ATEST_GE_80:
qglEnable( GL_ALPHA_TEST );
qglAlphaFunc( GL_GEQUAL, 0.5f );
break;
default:
assert( 0 );
break;
}
}
glState.glStateBits = stateBits;
}
/*
==================
GL_SetDefaultState
==================
*/
void GL_SetDefaultState (){
int i;
QGL_LogPrintf("---------- GL_SetDefaultState ----------\n");
// Reset the state manager
glState.projectionMatrixIdentity = true;
glState.modelviewMatrixIdentity = true;
for (i = 0; i < MAX_TEXTURE_UNITS; i++)
glState.textureMatrixIdentity[i] = true;
for (i = 0; i < MAX_TEXTURE_UNITS; i++)
glState.texture[i] = NULL;
glState.program = NULL;
glState.indexBuffer = NULL;
glState.vertexBuffer = NULL;
glState.viewportX = 0;
glState.viewportY = 0;
glState.viewportWidth = glConfig.videoWidth;
glState.viewportHeight = glConfig.videoHeight;
glState.scissorX = 0;
glState.scissorY = 0;
glState.scissorWidth = glConfig.videoWidth;
glState.scissorHeight = glConfig.videoHeight;
glState.depthBoundsMin = 0.0f;
glState.depthBoundsMax = 1.0f;
glState.texUnit = 0;
for (i = 0; i < MAX_TEXTURE_UNITS; i++){
glState.texTarget[i] = 0;
glState.texEnv[i] = GL_MODULATE;
glState.texGen[i][0] = GL_OBJECT_LINEAR;
glState.texGen[i][1] = GL_OBJECT_LINEAR;
glState.texGen[i][2] = GL_OBJECT_LINEAR;
glState.texGen[i][3] = GL_OBJECT_LINEAR;
}
glState.cullFace = false;
glState.polygonOffsetFill = false;
glState.polygonOffsetLine = false;
glState.blend = false;
glState.alphaTest = false;
glState.depthTest = false;
glState.stencilTest = false;
for (i = 0; i < MAX_TEXTURE_UNITS; i++){
glState.textureGen[i][0] = false;
glState.textureGen[i][1] = false;
glState.textureGen[i][2] = false;
glState.textureGen[i][3] = false;
}
glState.cullMode = GL_FRONT;
glState.polygonMode = GL_FILL;
glState.polygonOffsetFactor = 0.0f;
glState.polygonOffsetUnits = 0.0f;
glState.blendSrc = GL_ONE;
glState.blendDst = GL_ZERO;
glState.blendMode = GL_FUNC_ADD;
glState.alphaFunc = GL_GREATER;
glState.alphaFuncRef = 0.0f;
glState.depthFunc = GL_LEQUAL;
glState.stencilFunc[0] = GL_ALWAYS;
glState.stencilFunc[1] = GL_ALWAYS;
glState.stencilFuncRef[0] = 0;
glState.stencilFuncRef[1] = 0;
glState.stencilFuncMask[0] = 255;
glState.stencilFuncMask[1] = 255;
glState.stencilOpFail[0] = GL_KEEP;
glState.stencilOpFail[1] = GL_KEEP;
glState.stencilOpZFail[0] = GL_KEEP;
glState.stencilOpZFail[1] = GL_KEEP;
glState.stencilOpZPass[0] = GL_KEEP;
glState.stencilOpZPass[1] = GL_KEEP;
glState.depthMin = 0.0f;
glState.depthMax = 1.0f;
glState.colorMask[0] = GL_TRUE;
glState.colorMask[1] = GL_TRUE;
glState.colorMask[2] = GL_TRUE;
glState.colorMask[3] = GL_TRUE;
glState.depthMask = GL_TRUE;
glState.stencilMask[0] = 255;
glState.stencilMask[1] = 255;
// Set default state
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity();
qglMatrixMode(GL_MODELVIEW);
qglLoadIdentity();
for (i = MAX_TEXTURE_UNITS - 1; i >= 0; i--){
if (i >= glConfig.maxTextureImageUnits)
continue;
if (i >= glConfig.maxTextureUnits){
qglActiveTexture(GL_TEXTURE0 + i);
qglBindTexture(GL_TEXTURE_2D, 0);
qglBindTexture(GL_TEXTURE_3D, 0);
qglBindTexture(GL_TEXTURE_CUBE_MAP, 0);
qglBindTexture(GL_TEXTURE_2D_ARRAY, 0);
continue;
}
qglActiveTexture(GL_TEXTURE0 + i);
qglMatrixMode(GL_TEXTURE);
qglLoadIdentity();
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_TEXTURE_3D);
qglDisable(GL_TEXTURE_CUBE_MAP);
qglDisable(GL_TEXTURE_2D_ARRAY);
qglBindTexture(GL_TEXTURE_2D, 0);
qglBindTexture(GL_TEXTURE_3D, 0);
qglBindTexture(GL_TEXTURE_CUBE_MAP, 0);
qglBindTexture(GL_TEXTURE_2D_ARRAY, 0);
qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
qglDisable(GL_TEXTURE_GEN_S);
qglDisable(GL_TEXTURE_GEN_T);
qglDisable(GL_TEXTURE_GEN_R);
qglDisable(GL_TEXTURE_GEN_Q);
qglTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
qglTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
qglTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
qglTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
}
qglDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
qglUseProgram(0);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
qglBindBuffer(GL_ARRAY_BUFFER, 0);
qglViewport(0, 0, glConfig.videoWidth, glConfig.videoHeight);
qglEnable(GL_SCISSOR_TEST);
qglScissor(0, 0, glConfig.videoWidth, glConfig.videoHeight);
qglEnable(GL_DEPTH_BOUNDS_TEST_EXT);
qglDepthBoundsEXT(0.0f, 1.0f);
qglFrontFace(GL_CCW);
qglShadeModel(GL_SMOOTH);
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
qglDisable(GL_CULL_FACE);
qglCullFace(GL_FRONT);
qglDisable(GL_POLYGON_OFFSET_FILL);
qglDisable(GL_POLYGON_OFFSET_LINE);
qglPolygonOffset(0.0f, 0.0f);
qglDisable(GL_BLEND);
qglBlendFunc(GL_ONE, GL_ZERO);
qglBlendEquation(GL_FUNC_ADD);
qglDisable(GL_ALPHA_TEST);
qglAlphaFunc(GL_GREATER, 0.0f);
qglDisable(GL_DEPTH_TEST);
qglDepthFunc(GL_LEQUAL);
qglDisable(GL_STENCIL_TEST);
qglStencilFunc(GL_ALWAYS, 128, 255);
qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
qglDepthRange(0.0f, 1.0f);
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
qglDepthMask(GL_TRUE);
qglStencilMask(255);
qglDisable(GL_DEPTH_CLAMP);
qglDisable(GL_CLIP_PLANE0);
if (glConfig.multiSamples > 1){
qglDisable(GL_MULTISAMPLE);
qglDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
}
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
qglClearDepth(1.0f);
qglClearStencil(128);
qglEnableClientState(GL_VERTEX_ARRAY);
qglDisableVertexAttribArray(GL_ATTRIB_NORMAL);
qglDisableVertexAttribArray(GL_ATTRIB_TANGENT1);
qglDisableVertexAttribArray(GL_ATTRIB_TANGENT2);
qglDisableVertexAttribArray(GL_ATTRIB_TEXCOORD);
qglDisableVertexAttribArray(GL_ATTRIB_COLOR);
QGL_LogPrintf("--------------------\n");
}
