static void DrawSkySide( struct image_s *image, const int mins[2], const int maxs[2] )
{
int s, t;
GL_Bind( image );
#ifdef HAVE_GLES
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 );
#endif
for ( t = mins[1]+HALF_SKY_SUBDIVISIONS; t < maxs[1]+HALF_SKY_SUBDIVISIONS; t++ )
{
#ifdef HAVE_GLES
idx=0;
#else
qglBegin( GL_TRIANGLE_STRIP );
#endif
for ( s = mins[0]+HALF_SKY_SUBDIVISIONS; s <= maxs[0]+HALF_SKY_SUBDIVISIONS; s++ )
{
#ifdef HAVE_GLES
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++;
#else
qglTexCoord2fv( s_skyTexCoords[t][s] );
qglVertex3fv( s_skyPoints[t][s] );
qglTexCoord2fv( s_skyTexCoords[t+1][s] );
qglVertex3fv( s_skyPoints[t+1][s] );
#endif
}
#ifdef HAVE_GLES
//*TODO* Try to switch from many DrawArrays of GL_TRIANGLE_STRIP to a single DrawArrays of TRIANGLES to see if it perform better
qglVertexPointer (3, GL_FLOAT, 0, vtx);
qglTexCoordPointer(2, GL_FLOAT, 0, tex);
qglDrawArrays(GL_TRIANGLE_STRIP, 0, idx);
#else
qglEnd();
#endif
}
#ifdef HAVE_GLES
if (glcol)
qglEnableClientState(GL_COLOR_ARRAY);
if (!text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
#endif
}
/*
=================
RB_ShadowFinish
Darken everything that is is a shadow volume.
We have to delay this until everything has been shadowed,
because otherwise shadows from different body parts would
overlap and double darken.
=================
*/
void RB_ShadowFinish(void)
{
if (r_shadows->integer != 2)
{
return;
}
if (glConfig.stencilBits < 4)
{
return;
}
qglEnable(GL_STENCIL_TEST);
qglStencilFunc(GL_NOTEQUAL, 0, 255);
qglDisable(GL_CLIP_PLANE0);
qglDisable(GL_CULL_FACE);
GL_Bind(tr.whiteImage);
qglLoadIdentity();
qglColor3f(0.6f, 0.6f, 0.6f);
GL_State(GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO);
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (text)
{
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (glcol)
{
qglDisableClientState(GL_COLOR_ARRAY);
}
GLfloat vtx[] =
{
-100, 100, -10,
100, 100, -10,
100, -100, -10,
-100, -100, -10
};
qglVertexPointer(3, GL_FLOAT, 0, vtx);
qglDrawArrays(GL_TRIANGLE_FAN, 0, 4);
if (text)
{
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (glcol)
{
qglEnableClientState(GL_COLOR_ARRAY);
}
qglColor4f(1, 1, 1, 1);
qglDisable(GL_STENCIL_TEST);
}
/*
=================
RB_ShadowFinish
Darken everything that is is a shadow volume.
We have to delay this until everything has been shadowed,
because otherwise shadows from different body parts would
overlap and double darken.
=================
*/
void RB_ShadowFinish( void ) {
#if defined(VV_LIGHTING) && defined(_XBOX)
StencilShadower.FinishShadows();
#else
if ( r_shadows->integer != 2 ) {
return;
}
if ( glConfig.stencilBits < 4 ) {
return;
}
#ifdef _DEBUG_STENCIL_SHADOWS
return;
#endif
qglEnable( GL_STENCIL_TEST );
qglStencilFunc( GL_NOTEQUAL, 0, 255 );
qglStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
bool planeZeroBack = false;
if (qglIsEnabled(GL_CLIP_PLANE0))
{
planeZeroBack = true;
qglDisable (GL_CLIP_PLANE0);
}
GL_Cull(CT_TWO_SIDED);
//qglDisable (GL_CULL_FACE);
GL_Bind( tr.whiteImage );
qglPushMatrix();
qglLoadIdentity ();
// qglColor3f( 0.6f, 0.6f, 0.6f );
// GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO );
// qglColor3f( 1, 0, 0 );
// GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );
qglColor4f( 0.0f, 0.0f, 0.0f, 0.5f );
//GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
qglBegin( GL_QUADS );
qglVertex3f( -100, 100, -10 );
qglVertex3f( 100, 100, -10 );
qglVertex3f( 100, -100, -10 );
qglVertex3f( -100, -100, -10 );
qglEnd ();
qglColor4f(1,1,1,1);
qglDisable( GL_STENCIL_TEST );
if (planeZeroBack)
{
qglEnable (GL_CLIP_PLANE0);
}
qglPopMatrix();
#endif // VV_LIGHTING && _XBOX
}
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);
}
/*
=================
RB_ShadowFinish
Darken everything that is is a shadow volume.
We have to delay this until everything has been shadowed,
because otherwise shadows from different body parts would
overlap and double darken.
=================
*/
void RB_ShadowFinish( void ) {
if ( r_shadows->integer != 2 ) {
return;
}
if ( glConfig.stencilBits < 4 ) {
return;
}
#ifdef _DEBUG_STENCIL_SHADOWS
return;
#endif
qglEnable( GL_STENCIL_TEST );
qglStencilFunc( GL_NOTEQUAL, 0, 255 );
qglStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
bool planeZeroBack = false;
if (qglIsEnabled(GL_CLIP_PLANE0))
{
planeZeroBack = true;
qglDisable (GL_CLIP_PLANE0);
}
GL_Cull(CT_TWO_SIDED);
//qglDisable (GL_CULL_FACE);
GL_Bind( tr.whiteImage );
qglPushMatrix();
qglLoadIdentity ();
// qglColor3f( 0.6f, 0.6f, 0.6f );
// GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO );
// qglColor3f( 1, 0, 0 );
// GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );
qglColor4f( 0.0f, 0.0f, 0.0f, 0.5f );
//GL_State( GLS_DEPTHMASK_TRUE | GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
#ifdef HAVE_GLES
GLfloat vtx[] = {
-100, 100, -10,
100, 100, -10,
100, -100, -10,
-100, -100, -10
};
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglDisableClientState( GL_COLOR_ARRAY );
qglVertexPointer ( 3, GL_FLOAT, 0, vtx );
qglDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
if (text)
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglEnableClientState( GL_COLOR_ARRAY );
#else
qglBegin( GL_QUADS );
qglVertex3f( -100, 100, -10 );
qglVertex3f( 100, 100, -10 );
qglVertex3f( 100, -100, -10 );
qglVertex3f( -100, -100, -10 );
qglEnd ();
#endif
qglColor4f(1,1,1,1);
qglDisable( GL_STENCIL_TEST );
if (planeZeroBack)
{
qglEnable (GL_CLIP_PLANE0);
}
qglPopMatrix();
}
void RB_DoShadowTessEnd( vec3_t lightPos )
{
int i;
int numTris;
vec3_t lightDir;
// we can only do this if we have enough space in the vertex buffers
if ( tess.numVertexes >= SHADER_MAX_VERTEXES / 2 ) {
return;
}
if ( glConfig.stencilBits < 4 ) {
return;
}
#if 1 //controlled method - try to keep shadows in range so they don't show through so much -rww
vec3_t worldxyz;
vec3_t entLight;
float groundDist;
VectorCopy( backEnd.currentEntity->lightDir, entLight );
entLight[2] = 0.0f;
VectorNormalize(entLight);
//Oh well, just cast them straight down no matter what onto the ground plane.
//This presets no chance of screwups and still looks better than a stupid
//shader blob.
VectorSet(lightDir, entLight[0]*0.3f, entLight[1]*0.3f, 1.0f);
// project vertexes away from light direction
for ( i = 0 ; i < tess.numVertexes ; i++ ) {
//add or.origin to vert xyz to end up with world oriented coord, then figure
//out the ground pos for the vert to project the shadow volume to
VectorAdd(tess.xyz[i], backEnd.ori.origin, worldxyz);
groundDist = worldxyz[2] - backEnd.currentEntity->e.shadowPlane;
groundDist += 16.0f; //fudge factor
VectorMA( tess.xyz[i], -groundDist, lightDir, tess.xyz[i+tess.numVertexes] );
}
#else
if (lightPos)
{
for ( i = 0 ; i < tess.numVertexes ; i++ )
{
tess.xyz[i+tess.numVertexes][0] = tess.xyz[i][0]+(( tess.xyz[i][0]-lightPos[0] )*128.0f);
tess.xyz[i+tess.numVertexes][1] = tess.xyz[i][1]+(( tess.xyz[i][1]-lightPos[1] )*128.0f);
tess.xyz[i+tess.numVertexes][2] = tess.xyz[i][2]+(( tess.xyz[i][2]-lightPos[2] )*128.0f);
}
}
else
{
VectorCopy( backEnd.currentEntity->lightDir, lightDir );
// project vertexes away from light direction
for ( i = 0 ; i < tess.numVertexes ; i++ ) {
VectorMA( tess.xyz[i], -512, lightDir, tess.xyz[i+tess.numVertexes] );
}
}
#endif
// decide which triangles face the light
memset( numEdgeDefs, 0, 4 * tess.numVertexes );
numTris = tess.numIndexes / 3;
for ( i = 0 ; i < numTris ; i++ ) {
int i1, i2, i3;
vec3_t d1, d2, normal;
float *v1, *v2, *v3;
float d;
i1 = tess.indexes[ i*3 + 0 ];
i2 = tess.indexes[ i*3 + 1 ];
i3 = tess.indexes[ i*3 + 2 ];
v1 = tess.xyz[ i1 ];
v2 = tess.xyz[ i2 ];
v3 = tess.xyz[ i3 ];
if (!lightPos)
{
VectorSubtract( v2, v1, d1 );
VectorSubtract( v3, v1, d2 );
CrossProduct( d1, d2, normal );
d = DotProduct( normal, lightDir );
}
else
{
float planeEq[4];
planeEq[0] = v1[1]*(v2[2]-v3[2]) + v2[1]*(v3[2]-v1[2]) + v3[1]*(v1[2]-v2[2]);
planeEq[1] = v1[2]*(v2[0]-v3[0]) + v2[2]*(v3[0]-v1[0]) + v3[2]*(v1[0]-v2[0]);
planeEq[2] = v1[0]*(v2[1]-v3[1]) + v2[0]*(v3[1]-v1[1]) + v3[0]*(v1[1]-v2[1]);
planeEq[3] = -( v1[0]*( v2[1]*v3[2] - v3[1]*v2[2] ) +
v2[0]*(v3[1]*v1[2] - v1[1]*v3[2]) +
v3[0]*(v1[1]*v2[2] - v2[1]*v1[2]) );
d = planeEq[0]*lightPos[0]+
planeEq[1]*lightPos[1]+
planeEq[2]*lightPos[2]+
planeEq[3];
}
if ( d > 0 ) {
facing[ i ] = 1;
} else {
facing[ i ] = 0;
}
// create the edges
R_AddEdgeDef( i1, i2, facing[ i ] );
R_AddEdgeDef( i2, i3, facing[ i ] );
R_AddEdgeDef( i3, i1, facing[ i ] );
}
GL_Bind( tr.whiteImage );
//qglEnable( GL_CULL_FACE );
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );
#ifndef _DEBUG_STENCIL_SHADOWS
qglColor3f( 0.2f, 0.2f, 0.2f );
// don't write to the color buffer
qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
qglEnable( GL_STENCIL_TEST );
qglStencilFunc( GL_ALWAYS, 1, 255 );
#else
qglColor3f( 1.0f, 0.0f, 0.0f );
qglPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
//qglDisable(GL_DEPTH_TEST);
#endif
#ifdef HAVE_GLES
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglDisableClientState( GL_COLOR_ARRAY );
qglVertexPointer (3, GL_FLOAT, 16, tess.xyz);
#endif
#ifdef _STENCIL_REVERSE
qglDepthFunc(GL_LESS);
//now using the Carmack Reverse<tm> -rww
if ( backEnd.viewParms.isMirror ) {
//qglCullFace( GL_BACK );
GL_Cull(CT_BACK_SIDED);
qglStencilOp( GL_KEEP, GL_INCR, GL_KEEP );
R_RenderShadowEdges();
//qglCullFace( GL_FRONT );
GL_Cull(CT_FRONT_SIDED);
qglStencilOp( GL_KEEP, GL_DECR, GL_KEEP );
#ifdef HAVE_GLES
qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes);
#else
R_RenderShadowEdges();
#endif
} else {
//qglCullFace( GL_FRONT );
GL_Cull(CT_FRONT_SIDED);
qglStencilOp( GL_KEEP, GL_INCR, GL_KEEP );
R_RenderShadowEdges();
//qglCullFace( GL_BACK );
GL_Cull(CT_BACK_SIDED);
qglStencilOp( GL_KEEP, GL_DECR, GL_KEEP );
#ifdef HAVE_GLES
qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes);
#else
R_RenderShadowEdges();
#endif
}
qglDepthFunc(GL_LEQUAL);
#else
// mirrors have the culling order reversed
if ( backEnd.viewParms.isMirror ) {
qglCullFace( GL_FRONT );
qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
R_RenderShadowEdges();
qglCullFace( GL_BACK );
qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );
#ifdef HAVE_GLES
qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes);
#else
R_RenderShadowEdges();
#endif
} else {
qglCullFace( GL_BACK );
qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
R_RenderShadowEdges();
qglCullFace( GL_FRONT );
qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );
#ifdef HAVE_GLES
qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes);
#else
R_RenderShadowEdges();
#endif
}
#endif
// reenable writing to the color buffer
qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
#ifdef HAVE_GLES
if (text)
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglEnableClientState( GL_COLOR_ARRAY );
#endif
#ifdef _DEBUG_STENCIL_SHADOWS
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
#endif
}
static void ProjectDlightTexture( void ) {
int i, l;
vec3_t origin;
float *texCoords;
byte *colors;
byte clipBits[SHADER_MAX_VERTEXES];
float texCoordsArray[SHADER_MAX_VERTEXES][2];
byte colorArray[SHADER_MAX_VERTEXES][4];
glIndex_t hitIndexes[SHADER_MAX_INDEXES];
int numIndexes;
float scale;
float radius;
int fogging;
vec3_t floatColor;
shaderStage_t *dStage;
if ( !backEnd.refdef.num_dlights ) {
return;
}
for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) {
dlight_t *dl;
if ( !( tess.dlightBits & ( 1 << l ) ) ) {
continue; // this surface definately doesn't have any of this light
}
texCoords = texCoordsArray[0];
colors = colorArray[0];
dl = &backEnd.refdef.dlights[l];
VectorCopy( dl->transformed, origin );
radius = dl->radius;
scale = 1.0f / radius;
floatColor[0] = dl->color[0] * 255.0f;
floatColor[1] = dl->color[1] * 255.0f;
floatColor[2] = dl->color[2] * 255.0f;
for ( i = 0 ; i < tess.numVertexes ; i++, texCoords += 2, colors += 4 ) {
vec3_t dist;
int clip;
float modulate;
backEnd.pc.c_dlightVertexes++;
VectorSubtract( origin, tess.xyz[i], dist );
int l = 1;
int bestIndex = 0;
float greatest = tess.normal[i][0];
if (greatest < 0.0f)
{
greatest = -greatest;
}
if (VectorCompare(tess.normal[i], vec3_origin))
{ //damn you terrain!
bestIndex = 2;
}
else
{
while (l < 3)
{
if ((tess.normal[i][l] > greatest && tess.normal[i][l] > 0.0f) ||
(tess.normal[i][l] < -greatest && tess.normal[i][l] < 0.0f))
{
greatest = tess.normal[i][l];
if (greatest < 0.0f)
{
greatest = -greatest;
}
bestIndex = l;
}
l++;
}
}
float dUse = 0.0f;
const float maxScale = 1.5f;
const float maxGroundScale = 1.4f;
const float lightScaleTolerance = 0.1f;
if (bestIndex == 2)
{
dUse = origin[2]-tess.xyz[i][2];
if (dUse < 0.0f)
{
dUse = -dUse;
}
dUse = (radius*0.5f)/dUse;
if (dUse > maxGroundScale)
{
dUse = maxGroundScale;
}
else if (dUse < 0.1f)
{
dUse = 0.1f;
}
if (VectorCompare(tess.normal[i], vec3_origin) ||
tess.normal[i][0] > lightScaleTolerance ||
tess.normal[i][0] < -lightScaleTolerance ||
tess.normal[i][1] > lightScaleTolerance ||
tess.normal[i][1] < -lightScaleTolerance)
{ //if not perfectly flat, we must use a constant dist
scale = 1.0f / radius;
}
else
{
scale = 1.0f / (radius*dUse);
}
texCoords[0] = 0.5f + dist[0] * scale;
texCoords[1] = 0.5f + dist[1] * scale;
}
else if (bestIndex == 1)
{
dUse = origin[1]-tess.xyz[i][1];
if (dUse < 0.0f)
{
dUse = -dUse;
}
dUse = (radius*0.5f)/dUse;
if (dUse > maxScale)
{
dUse = maxScale;
}
else if (dUse < 0.1f)
{
dUse = 0.1f;
}
if (tess.normal[i][0] > lightScaleTolerance ||
tess.normal[i][0] < -lightScaleTolerance ||
tess.normal[i][2] > lightScaleTolerance ||
tess.normal[i][2] < -lightScaleTolerance)
{ //if not perfectly flat, we must use a constant dist
scale = 1.0f / radius;
}
else
{
scale = 1.0f / (radius*dUse);
}
texCoords[0] = 0.5f + dist[0] * scale;
texCoords[1] = 0.5f + dist[2] * scale;
}
else
{
dUse = origin[0]-tess.xyz[i][0];
if (dUse < 0.0f)
{
dUse = -dUse;
}
dUse = (radius*0.5f)/dUse;
if (dUse > maxScale)
{
dUse = maxScale;
}
else if (dUse < 0.1f)
{
dUse = 0.1f;
}
if (tess.normal[i][2] > lightScaleTolerance ||
tess.normal[i][2] < -lightScaleTolerance ||
tess.normal[i][1] > lightScaleTolerance ||
tess.normal[i][1] < -lightScaleTolerance)
{ //if not perfectly flat, we must use a constant dist
scale = 1.0f / radius;
}
else
{
scale = 1.0f / (radius*dUse);
}
texCoords[0] = 0.5f + dist[1] * scale;
texCoords[1] = 0.5f + dist[2] * scale;
}
clip = 0;
if ( texCoords[0] < 0.0f ) {
clip |= 1;
} else if ( texCoords[0] > 1.0f ) {
clip |= 2;
}
if ( texCoords[1] < 0.0f ) {
clip |= 4;
} else if ( texCoords[1] > 1.0f ) {
clip |= 8;
}
// modulate the strength based on the height and color
if ( dist[bestIndex] > radius ) {
clip |= 16;
modulate = 0.0f;
} else if ( dist[bestIndex] < -radius ) {
clip |= 32;
modulate = 0.0f;
} else {
dist[bestIndex] = Q_fabs(dist[bestIndex]);
if ( dist[bestIndex] < radius * 0.5f ) {
modulate = 1.0f;
} else {
modulate = 2.0f * (radius - dist[bestIndex]) * scale;
}
}
clipBits[i] = clip;
colors[0] = Q_ftol(floatColor[0] * modulate);
colors[1] = Q_ftol(floatColor[1] * modulate);
colors[2] = Q_ftol(floatColor[2] * modulate);
colors[3] = 255;
}
// build a list of triangles that need light
numIndexes = 0;
for ( i = 0 ; i < tess.numIndexes ; i += 3 ) {
int a, b, c;
a = tess.indexes[i];
b = tess.indexes[i+1];
c = tess.indexes[i+2];
if ( clipBits[a] & clipBits[b] & clipBits[c] ) {
continue; // not lighted
}
hitIndexes[numIndexes] = a;
hitIndexes[numIndexes+1] = b;
hitIndexes[numIndexes+2] = c;
numIndexes += 3;
}
if ( !numIndexes ) {
continue;
}
//don't have fog enabled when we redraw with alpha test, or it will double over
//and screw the tri up -rww
if (r_drawfog->value == 2 &&
tr.world &&
(tess.fogNum == tr.world->globalFog || tess.fogNum == tr.world->numfogs))
{
fogging = qglIsEnabled(GL_FOG);
if (fogging)
{
qglDisable(GL_FOG);
}
}
else
{
fogging = 0;
}
dStage = NULL;
if (tess.shader && qglActiveTextureARB)
{
int i = 0;
while (i < tess.shader->numUnfoggedPasses)
{
const int blendBits = (GLS_SRCBLEND_BITS+GLS_DSTBLEND_BITS);
if (((tess.shader->stages[i].bundle[0].image && !tess.shader->stages[i].bundle[0].isLightmap && !tess.shader->stages[i].bundle[0].numTexMods) ||
(tess.shader->stages[i].bundle[1].image && !tess.shader->stages[i].bundle[1].isLightmap && !tess.shader->stages[i].bundle[1].numTexMods)) &&
(tess.shader->stages[i].stateBits & blendBits) == 0 )
{ //only use non-lightmap opaque stages
dStage = &tess.shader->stages[i];
break;
}
i++;
}
}
if (dStage)
{
GL_SelectTexture( 0 );
GL_State(0);
qglTexCoordPointer( 2, GL_FLOAT, 0, tess.svars.texcoords[0] );
if (dStage->bundle[0].image && !dStage->bundle[0].isLightmap && !dStage->bundle[0].numTexMods)
{
R_BindAnimatedImage( &dStage->bundle[0] );
}
else
{
R_BindAnimatedImage( &dStage->bundle[1] );
}
GL_SelectTexture( 1 );
qglEnable( GL_TEXTURE_2D );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
GL_TexEnv( GL_MODULATE );
GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL);// | GLS_ATEST_GT_0);
R_DrawElements( numIndexes, hitIndexes );
qglDisable( GL_TEXTURE_2D );
GL_SelectTexture(0);
}
else
{
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
// include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light
// where they aren't rendered
if ( dl->additive ) {
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL );
}
else {
GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL );
}
R_DrawElements( numIndexes, hitIndexes );
}
if (fogging)
{
qglEnable(GL_FOG);
}
backEnd.pc.c_totalIndexes += numIndexes;
backEnd.pc.c_dlightIndexes += numIndexes;
}
}
/*
===================
ProjectDlightTexture
Perform dynamic lighting with another rendering pass
===================
*/
static void ProjectDlightTexture2( void ) {
int i, l;
vec3_t origin;
byte clipBits[SHADER_MAX_VERTEXES];
float texCoordsArray[SHADER_MAX_VERTEXES][2];
float oldTexCoordsArray[SHADER_MAX_VERTEXES][2];
float vertCoordsArray[SHADER_MAX_VERTEXES][4];
unsigned int colorArray[SHADER_MAX_VERTEXES];
glIndex_t hitIndexes[SHADER_MAX_INDEXES];
int numIndexes;
float radius;
int fogging;
shaderStage_t *dStage;
vec3_t posa;
vec3_t posb;
vec3_t posc;
vec3_t dist;
vec3_t e1;
vec3_t e2;
vec3_t normal;
float fac,modulate;
vec3_t floatColor;
byte colorTemp[4];
int needResetVerts=0;
if ( !backEnd.refdef.num_dlights )
{
return;
}
for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ )
{
dlight_t *dl;
if ( !( tess.dlightBits & ( 1 << l ) ) ) {
continue; // this surface definately doesn't have any of this light
}
dl = &backEnd.refdef.dlights[l];
VectorCopy( dl->transformed, origin );
radius = dl->radius;
int clipall = 63;
for ( i = 0 ; i < tess.numVertexes ; i++)
{
int clip;
VectorSubtract( origin, tess.xyz[i], dist );
clip = 0;
if ( dist[0] < -radius )
{
clip |= 1;
}
else if ( dist[0] > radius )
{
clip |= 2;
}
if ( dist[1] < -radius )
{
clip |= 4;
}
else if ( dist[1] > radius )
{
clip |= 8;
}
if ( dist[2] < -radius )
{
clip |= 16;
}
else if ( dist[2] > radius )
{
clip |= 32;
}
clipBits[i] = clip;
clipall &= clip;
}
if ( clipall )
{
continue; // this surface doesn't have any of this light
}
floatColor[0] = dl->color[0] * 255.0f;
floatColor[1] = dl->color[1] * 255.0f;
floatColor[2] = dl->color[2] * 255.0f;
// build a list of triangles that need light
numIndexes = 0;
for ( i = 0 ; i < tess.numIndexes ; i += 3 )
{
int a, b, c;
a = tess.indexes[i];
b = tess.indexes[i+1];
c = tess.indexes[i+2];
if ( clipBits[a] & clipBits[b] & clipBits[c] )
{
continue; // not lighted
}
// copy the vertex positions
VectorCopy(tess.xyz[a],posa);
VectorCopy(tess.xyz[b],posb);
VectorCopy(tess.xyz[c],posc);
VectorSubtract( posa, posb,e1);
VectorSubtract( posc, posb,e2);
CrossProduct(e1,e2,normal);
// rjr - removed for hacking if ( (!r_dlightBacks->integer && DotProduct(normal,origin)-DotProduct(normal,posa) <= 0.0f) || // backface
if ( DotProduct(normal,origin)-DotProduct(normal,posa) <= 0.0f || // backface
DotProduct(normal,normal) < 1E-8f) // junk triangle
{
continue;
}
VectorNormalize(normal);
fac=DotProduct(normal,origin)-DotProduct(normal,posa);
if (fac >= radius) // out of range
{
continue;
}
modulate = 1.0f-((fac*fac) / (radius*radius));
fac = 0.5f/sqrtf(radius*radius - fac*fac);
// save the verts
VectorCopy(posa,vertCoordsArray[numIndexes]);
VectorCopy(posb,vertCoordsArray[numIndexes+1]);
VectorCopy(posc,vertCoordsArray[numIndexes+2]);
// now we need e1 and e2 to be an orthonormal basis
if (DotProduct(e1,e1) > DotProduct(e2,e2))
{
VectorNormalize(e1);
CrossProduct(e1,normal,e2);
}
else
{
VectorNormalize(e2);
CrossProduct(normal,e2,e1);
}
VectorScale(e1,fac,e1);
VectorScale(e2,fac,e2);
VectorSubtract( posa, origin,dist);
texCoordsArray[numIndexes][0]=DotProduct(dist,e1)+0.5f;
texCoordsArray[numIndexes][1]=DotProduct(dist,e2)+0.5f;
VectorSubtract( posb, origin,dist);
texCoordsArray[numIndexes+1][0]=DotProduct(dist,e1)+0.5f;
texCoordsArray[numIndexes+1][1]=DotProduct(dist,e2)+0.5f;
VectorSubtract( posc, origin,dist);
texCoordsArray[numIndexes+2][0]=DotProduct(dist,e1)+0.5f;
texCoordsArray[numIndexes+2][1]=DotProduct(dist,e2)+0.5f;
if ((texCoordsArray[numIndexes][0] < 0.0f && texCoordsArray[numIndexes+1][0] < 0.0f && texCoordsArray[numIndexes+2][0] < 0.0f) ||
(texCoordsArray[numIndexes][0] > 1.0f && texCoordsArray[numIndexes+1][0] > 1.0f && texCoordsArray[numIndexes+2][0] > 1.0f) ||
(texCoordsArray[numIndexes][1] < 0.0f && texCoordsArray[numIndexes+1][1] < 0.0f && texCoordsArray[numIndexes+2][1] < 0.0f) ||
(texCoordsArray[numIndexes][1] > 1.0f && texCoordsArray[numIndexes+1][1] > 1.0f && texCoordsArray[numIndexes+2][1] > 1.0f) )
{
continue; // didn't end up hitting this tri
}
/* old code, get from the svars = wrong
oldTexCoordsArray[numIndexes][0]=tess.svars.texcoords[0][a][0];
oldTexCoordsArray[numIndexes][1]=tess.svars.texcoords[0][a][1];
oldTexCoordsArray[numIndexes+1][0]=tess.svars.texcoords[0][b][0];
oldTexCoordsArray[numIndexes+1][1]=tess.svars.texcoords[0][b][1];
oldTexCoordsArray[numIndexes+2][0]=tess.svars.texcoords[0][c][0];
oldTexCoordsArray[numIndexes+2][1]=tess.svars.texcoords[0][c][1];
*/
oldTexCoordsArray[numIndexes][0]=tess.texCoords[a][0][0];
oldTexCoordsArray[numIndexes][1]=tess.texCoords[a][0][1];
oldTexCoordsArray[numIndexes+1][0]=tess.texCoords[b][0][0];
oldTexCoordsArray[numIndexes+1][1]=tess.texCoords[b][0][1];
oldTexCoordsArray[numIndexes+2][0]=tess.texCoords[c][0][0];
oldTexCoordsArray[numIndexes+2][1]=tess.texCoords[c][0][1];
colorTemp[0] = Q_ftol(floatColor[0] * modulate);
colorTemp[1] = Q_ftol(floatColor[1] * modulate);
colorTemp[2] = Q_ftol(floatColor[2] * modulate);
colorTemp[3] = 255;
byteAlias_t *ba = (byteAlias_t *)&colorTemp;
colorArray[numIndexes + 0] = ba->ui;
colorArray[numIndexes + 1] = ba->ui;
colorArray[numIndexes + 2] = ba->ui;
hitIndexes[numIndexes] = numIndexes;
hitIndexes[numIndexes+1] = numIndexes+1;
hitIndexes[numIndexes+2] = numIndexes+2;
numIndexes += 3;
if (numIndexes>=SHADER_MAX_VERTEXES-3)
{
break; // we are out of space, so we are done :)
}
}
if ( !numIndexes ) {
continue;
}
//don't have fog enabled when we redraw with alpha test, or it will double over
//and screw the tri up -rww
if (r_drawfog->value == 2 &&
tr.world &&
(tess.fogNum == tr.world->globalFog || tess.fogNum == tr.world->numfogs))
{
fogging = qglIsEnabled(GL_FOG);
if (fogging)
{
qglDisable(GL_FOG);
}
}
else
{
fogging = 0;
}
dStage = NULL;
if (tess.shader && qglActiveTextureARB)
{
int i = 0;
while (i < tess.shader->numUnfoggedPasses)
{
const int blendBits = (GLS_SRCBLEND_BITS+GLS_DSTBLEND_BITS);
if (((tess.shader->stages[i].bundle[0].image && !tess.shader->stages[i].bundle[0].isLightmap && !tess.shader->stages[i].bundle[0].numTexMods && tess.shader->stages[i].bundle[0].tcGen != TCGEN_ENVIRONMENT_MAPPED && tess.shader->stages[i].bundle[0].tcGen != TCGEN_FOG) ||
(tess.shader->stages[i].bundle[1].image && !tess.shader->stages[i].bundle[1].isLightmap && !tess.shader->stages[i].bundle[1].numTexMods && tess.shader->stages[i].bundle[1].tcGen != TCGEN_ENVIRONMENT_MAPPED && tess.shader->stages[i].bundle[1].tcGen != TCGEN_FOG)) &&
(tess.shader->stages[i].stateBits & blendBits) == 0 )
{ //only use non-lightmap opaque stages
dStage = &tess.shader->stages[i];
break;
}
i++;
}
}
if (!needResetVerts)
{
needResetVerts=1;
if (qglUnlockArraysEXT)
{
qglUnlockArraysEXT();
GLimp_LogComment( "glUnlockArraysEXT\n" );
}
}
qglVertexPointer (3, GL_FLOAT, 16, vertCoordsArray); // padded for SIMD
if (dStage)
{
GL_SelectTexture( 0 );
GL_State(0);
qglTexCoordPointer( 2, GL_FLOAT, 0, oldTexCoordsArray[0] );
if (dStage->bundle[0].image && !dStage->bundle[0].isLightmap && !dStage->bundle[0].numTexMods && dStage->bundle[0].tcGen != TCGEN_ENVIRONMENT_MAPPED && dStage->bundle[0].tcGen != TCGEN_FOG)
{
R_BindAnimatedImage( &dStage->bundle[0] );
}
else
{
R_BindAnimatedImage( &dStage->bundle[1] );
}
GL_SelectTexture( 1 );
qglEnable( GL_TEXTURE_2D );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
GL_TexEnv( GL_MODULATE );
GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL);// | GLS_ATEST_GT_0);
R_DrawElements( numIndexes, hitIndexes );
qglDisable( GL_TEXTURE_2D );
GL_SelectTexture(0);
}
else
{
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
// include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light
// where they aren't rendered
if ( dl->additive ) {
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL );
}
else {
GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL );
}
R_DrawElements( numIndexes, hitIndexes );
}
if (fogging)
{
qglEnable(GL_FOG);
}
backEnd.pc.c_totalIndexes += numIndexes;
backEnd.pc.c_dlightIndexes += numIndexes;
}
if (needResetVerts)
{
qglVertexPointer (3, GL_FLOAT, 16, tess.xyz); // padded for SIMD
if (qglLockArraysEXT)
{
qglLockArraysEXT(0, tess.numVertexes);
GLimp_LogComment( "glLockArraysEXT\n" );
}
}
}
/*
=================
RB_ShadowTessEnd
triangleFromEdge[ v1 ][ v2 ]
set triangle from edge( v1, v2, tri )
if ( facing[ triangleFromEdge[ v1 ][ v2 ] ] && !facing[ triangleFromEdge[ v2 ][ v1 ] ) {
}
=================
*/
void RB_ShadowTessEnd(void)
{
int i;
int numTris;
vec3_t lightDir;
// we can only do this if we have enough space in the vertex buffers
if (tess.numVertexes >= tess.maxShaderVerts / 2)
{
return;
}
if (glConfig.stencilBits < 4)
{
return;
}
VectorCopy(backEnd.currentEntity->lightDir, lightDir);
// project vertexes away from light direction
for (i = 0 ; i < tess.numVertexes ; i++)
{
VectorMA(tess.xyz[i].v, -512, lightDir, tess.xyz[i + tess.numVertexes].v);
}
// decide which triangles face the light
memset(numEdgeDefs, 0, 4 * tess.numVertexes);
numTris = tess.numIndexes / 3;
{
int i1, i2, i3;
vec3_t d1, d2, normal;
float *v1, *v2, *v3;
float d;
for (i = 0 ; i < numTris ; i++)
{
i1 = tess.indexes[i * 3 + 0];
i2 = tess.indexes[i * 3 + 1];
i3 = tess.indexes[i * 3 + 2];
v1 = tess.xyz[i1].v;
v2 = tess.xyz[i2].v;
v3 = tess.xyz[i3].v;
VectorSubtract(v2, v1, d1);
VectorSubtract(v3, v1, d2);
CrossProduct(d1, d2, normal);
d = DotProduct(normal, lightDir);
if (d > 0)
{
facing[i] = 1;
}
else
{
facing[i] = 0;
}
// create the edges
R_AddEdgeDef(i1, i2, facing[i]);
R_AddEdgeDef(i2, i3, facing[i]);
R_AddEdgeDef(i3, i1, facing[i]);
}
}
// draw the silhouette edges
GL_Bind(tr.whiteImage);
qglEnable(GL_CULL_FACE);
GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO);
qglColor3f(0.2f, 0.2f, 0.2f);
// don't write to the color buffer
qglColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
qglEnable(GL_STENCIL_TEST);
qglStencilFunc(GL_ALWAYS, 1, 255);
qglVertexPointer(3, GL_FLOAT, 16, tess.xyz);
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (text)
{
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (glcol)
{
qglDisableClientState(GL_COLOR_ARRAY);
}
// mirrors have the culling order reversed
if (backEnd.viewParms.isMirror)
{
qglCullFace(GL_FRONT);
qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
R_RenderShadowEdges();
qglCullFace(GL_BACK);
qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);
qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes);
}
else
{
qglCullFace(GL_BACK);
qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
R_RenderShadowEdges();
qglCullFace(GL_FRONT);
qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);
qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes);
}
if (text)
{
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (glcol)
{
qglEnableClientState(GL_COLOR_ARRAY);
}
// reenable writing to the color buffer
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
}
/*
===============
RB_ShowImages
Draw all the images to the screen, on top of whatever
was there. This is used to test for texture thrashing.
Also called by RE_EndRegistration
===============
*/
void RB_ShowImages( void ) {
int i;
image_t *image;
float x, y, w, h;
int start, end;
if ( !backEnd.projection2D ) {
RB_SetGL2D();
}
qglClear( GL_COLOR_BUFFER_BIT );
qglFinish();
start = ri.Milliseconds();
for ( i = 0 ; i < tr.numImages ; i++ ) {
image = tr.images[i];
w = glConfig.vidWidth / 40;
h = glConfig.vidHeight / 30;
x = i % 40 * w;
y = i / 30 * h;
// show in proportional size in mode 2
if ( r_showImages->integer == 2 ) {
w *= image->uploadWidth / 512.0f;
h *= image->uploadHeight / 512.0f;
}
#ifdef USE_OPENGLES
GLfloat tex[] = {
0, 0,
1, 0,
1, 1,
0, 1 };
GLfloat vtx[] = {
x, y,
x + w, y,
x + w, y + h,
x, y + h };
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 );
qglTexCoordPointer( 2, GL_FLOAT, 0, tex );
qglVertexPointer ( 2, GL_FLOAT, 0, vtx );
qglDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
if (glcol)
qglEnableClientState(GL_COLOR_ARRAY);
if (!text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
#else
GL_Bind( image );
qglBegin( GL_QUADS );
qglTexCoord2f( 0, 0 );
qglVertex2f( x, y );
qglTexCoord2f( 1, 0 );
qglVertex2f( x + w, y );
qglTexCoord2f( 1, 1 );
qglVertex2f( x + w, y + h );
qglTexCoord2f( 0, 1 );
qglVertex2f( x, y + h );
qglEnd();
#endif
}
qglFinish();
end = ri.Milliseconds();
ri.Printf( PRINT_ALL, "%i msec to draw all images\n", end - start );
}
// 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 ) );
}
/**
* @note Unused.
*/
void RB_DrawBounds(vec3_t mins, vec3_t maxs)
{
vec3_t center;
GL_Bind(tr.whiteImage);
GL_State(GLS_POLYMODE_LINE);
// box corners
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (glcol)
{
qglDisableClientState(GL_COLOR_ARRAY);
}
if (text)
{
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
GLfloat vtx1[] =
{
mins[0], mins[1], mins[2],
maxs[0], mins[1], mins[2],
mins[0], mins[1], mins[2],
mins[0], maxs[1], mins[2],
mins[0], mins[1], mins[2],
mins[0], mins[1], maxs[2],
maxs[0], maxs[1], maxs[2],
mins[0], maxs[1], maxs[2],
maxs[0], maxs[1], maxs[2],
maxs[0], mins[1], maxs[2],
maxs[0], maxs[1], maxs[2],
maxs[0], maxs[1], mins[2]
};
qglColor3f(1, 1, 1);
qglVertexPointer(3, GL_FLOAT, 0, vtx1);
qglDrawArrays(GL_LINES, 0, 12);
center[0] = (mins[0] + maxs[0]) * 0.5;
center[1] = (mins[1] + maxs[1]) * 0.5;
center[2] = (mins[2] + maxs[2]) * 0.5;
// center axis
GLfloat vtx2[] =
{
mins[0], center[1], center[2],
maxs[0], center[1], center[2],
center[0], mins[1], center[2],
center[0], maxs[1], center[2],
center[0], center[1], mins[2],
center[0], center[1], maxs[2]
};
qglColor3f(1, 0.85, 0);
qglVertexPointer(3, GL_FLOAT, 0, vtx2);
qglDrawArrays(GL_LINES, 0, 6);
if (glcol)
{
qglEnableClientState(GL_COLOR_ARRAY);
}
if (text)
{
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
}
/*********
SP_DrawTexture
*********/
void SP_DrawTexture(void* pixels, float width, float height, float vShift)
{
if (!pixels)
{
// Ug. We were not even able to load the error message texture.
return;
}
// Create a texture from the buffered file
GLuint texid;
qglGenTextures(1, &texid);
qglBindTexture(GL_TEXTURE_2D, texid);
qglTexImage2D(GL_TEXTURE_2D, 0, GL_DDS1_EXT, width, height, 0, GL_DDS1_EXT, GL_UNSIGNED_BYTE, pixels);
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
// Reset every GL state we've got. Who knows what state
// the renderer could be in when this function gets called.
qglColor3f(1.f, 1.f, 1.f);
qglViewport(0, 0, 640, 480);
GLboolean alpha = qglIsEnabled(GL_ALPHA_TEST);
qglDisable(GL_ALPHA_TEST);
GLboolean blend = qglIsEnabled(GL_BLEND);
qglDisable(GL_BLEND);
GLboolean cull = qglIsEnabled(GL_CULL_FACE);
qglDisable(GL_CULL_FACE);
GLboolean depth = qglIsEnabled(GL_DEPTH_TEST);
qglDisable(GL_DEPTH_TEST);
GLboolean fog = qglIsEnabled(GL_FOG);
qglDisable(GL_FOG);
GLboolean lighting = qglIsEnabled(GL_LIGHTING);
qglDisable(GL_LIGHTING);
GLboolean offset = qglIsEnabled(GL_POLYGON_OFFSET_FILL);
qglDisable(GL_POLYGON_OFFSET_FILL);
GLboolean scissor = qglIsEnabled(GL_SCISSOR_TEST);
qglDisable(GL_SCISSOR_TEST);
GLboolean stencil = qglIsEnabled(GL_STENCIL_TEST);
qglDisable(GL_STENCIL_TEST);
GLboolean texture = qglIsEnabled(GL_TEXTURE_2D);
qglEnable(GL_TEXTURE_2D);
qglMatrixMode(GL_MODELVIEW);
qglLoadIdentity();
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity();
qglOrtho(0, 640, 0, 480, 0, 1);
qglMatrixMode(GL_TEXTURE0);
qglLoadIdentity();
qglMatrixMode(GL_TEXTURE1);
qglLoadIdentity();
qglActiveTextureARB(GL_TEXTURE0_ARB);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
memset(&tess, 0, sizeof(tess));
// Draw the error message
qglBeginFrame();
if (!SP_LicenseDone)
{
// clear the screen if we haven't done the
// license yet...
qglClearColor(0, 0, 0, 1);
qglClear(GL_COLOR_BUFFER_BIT);
}
float x1 = 320 - width / 2;
float x2 = 320 + width / 2;
float y1 = 240 - height / 2;
float y2 = 240 + height / 2;
y1 += vShift;
y2 += vShift;
qglBeginEXT (GL_TRIANGLE_STRIP, 4, 0, 0, 4, 0);
qglTexCoord2f( 0, 0 );
qglVertex2f(x1, y1);
qglTexCoord2f( 1 , 0 );
qglVertex2f(x2, y1);
qglTexCoord2f( 0, 1 );
qglVertex2f(x1, y2);
qglTexCoord2f( 1, 1 );
qglVertex2f(x2, y2);
qglEnd();
qglEndFrame();
qglFlush();
// Restore (most) of the render states we reset
if (alpha) qglEnable(GL_ALPHA_TEST);
else qglDisable(GL_ALPHA_TEST);
if (blend) qglEnable(GL_BLEND);
else qglDisable(GL_BLEND);
if (cull) qglEnable(GL_CULL_FACE);
else qglDisable(GL_CULL_FACE);
if (depth) qglEnable(GL_DEPTH_TEST);
else qglDisable(GL_DEPTH_TEST);
if (fog) qglEnable(GL_FOG);
else qglDisable(GL_FOG);
if (lighting) qglEnable(GL_LIGHTING);
else qglDisable(GL_LIGHTING);
if (offset) qglEnable(GL_POLYGON_OFFSET_FILL);
else qglDisable(GL_POLYGON_OFFSET_FILL);
if (scissor) qglEnable(GL_SCISSOR_TEST);
else qglDisable(GL_SCISSOR_TEST);
if (stencil) qglEnable(GL_STENCIL_TEST);
else qglDisable(GL_STENCIL_TEST);
if (texture) qglEnable(GL_TEXTURE_2D);
else qglDisable(GL_TEXTURE_2D);
// Kill the texture
qglDeleteTextures(1, &texid);
}
/*
=============
RE_StretchRaw
FIXME: not exactly backend
Stretches a raw 32 bit power of 2 bitmap image over the given screen rectangle.
Used for cinematics.
=============
*/
void RE_StretchRaw (int x, int y, int w, int h, int cols, int rows, const qbyte *data, int client, qboolean dirty) {
int i, j;
int start, end;
if ( !tr.registered ) {
return;
}
R_SyncRenderThread();
// we definately want to sync every frame for the cinematics
qglFinish();
start = end = 0;
if ( r_speeds->integer ) {
start = ri.Milliseconds();
}
// make sure rows and cols are powers of 2
for ( i = 0 ; ( 1 << i ) < cols ; i++ ) {
}
for ( j = 0 ; ( 1 << j ) < rows ; j++ ) {
}
if ( ( 1 << i ) != cols || ( 1 << j ) != rows) {
ri.Error (ERR_DROP, "Draw_StretchRaw: size not a power of 2: %i by %i", cols, rows);
}
GL_Bind( tr.scratchImage[client] );
// if the scratchImage isn't in the format we want, specify it as a new texture
if ( cols != tr.scratchImage[client]->width || rows != tr.scratchImage[client]->height ) {
tr.scratchImage[client]->width = tr.scratchImage[client]->uploadWidth = cols;
tr.scratchImage[client]->height = tr.scratchImage[client]->uploadHeight = rows;
#ifdef IPHONE
qglTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, cols, rows, 0, GL_RGBA, GL_UNSIGNED_BYTE, data );
#else
qglTexImage2D( GL_TEXTURE_2D, 0, GL_RGB8, cols, rows, 0, GL_RGBA, GL_UNSIGNED_BYTE, data );
#endif // IPHONE
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
} else {
if (dirty) {
// otherwise, just subimage upload it so that drivers can tell we are going to be changing
// it and don't try and do a texture compression
qglTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, cols, rows, GL_RGBA, GL_UNSIGNED_BYTE, data );
Com_DPrintf("blend = %d, lighting = %d\n", qglIsEnabled(GL_BLEND), qglIsEnabled(GL_LIGHTING));
}
}
if ( r_speeds->integer ) {
end = ri.Milliseconds();
ri.Printf( PRINT_ALL, "qglTexSubImage2D %i, %i: %i msec\n", cols, rows, end - start );
}
RB_SetGL2D();
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglBegin (GL_QUADS);
qglTexCoord2f ( 0.5f / cols, 0.5f / rows );
qglVertex2f (x, y);
qglTexCoord2f ( ( cols - 0.5f ) / cols , 0.5f / rows );
qglVertex2f (x+w, y);
qglTexCoord2f ( ( cols - 0.5f ) / cols, ( rows - 0.5f ) / rows );
qglVertex2f (x+w, y+h);
qglTexCoord2f ( 0.5f / cols, ( rows - 0.5f ) / rows );
qglVertex2f (x, y+h);
qglEnd ();
}
void RB_DistortionFill(void)
{
float alpha = tr_distortionAlpha;
float spost = 0.0f;
float spost2 = 0.0f;
if ( glConfig.stencilBits < 4 )
{
return;
}
//ok, cap the stupid thing now I guess
if (!tr_distortionPrePost)
{
RB_CaptureScreenImage();
}
qglEnable(GL_STENCIL_TEST);
qglStencilFunc(GL_NOTEQUAL, 0, 0xFFFFFFFF);
qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
qglDisable (GL_CLIP_PLANE0);
GL_Cull( CT_TWO_SIDED );
//reset the view matrices and go into ortho mode
qglMatrixMode(GL_PROJECTION);
qglPushMatrix();
qglLoadIdentity();
qglOrtho(0, glConfig.vidWidth, glConfig.vidHeight, 32, -1, 1);
qglMatrixMode(GL_MODELVIEW);
qglPushMatrix();
qglLoadIdentity();
if (tr_distortionStretch)
{ //override
spost = tr_distortionStretch;
spost2 = tr_distortionStretch;
}
else
{ //do slow stretchy effect
spost = sin(tr.refdef.time*0.0005f);
if (spost < 0.0f)
{
spost = -spost;
}
spost *= 0.2f;
spost2 = sin(tr.refdef.time*0.0005f);
if (spost2 < 0.0f)
{
spost2 = -spost2;
}
spost2 *= 0.08f;
}
if (alpha != 1.0f)
{ //blend
GL_State(GLS_SRCBLEND_SRC_ALPHA|GLS_DSTBLEND_SRC_ALPHA);
}
else
{ //be sure to reset the draw state
GL_State(0);
}
#ifdef HAVE_GLES
qglColor4f(1.0f, 1.0f, 1.0f, alpha);
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (!text)
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglDisableClientState( GL_COLOR_ARRAY );
GLfloat tex[] = {
0+spost2, 1-spost,
0+spost2, 0+spost,
1-spost2, 0+spost,
1-spost2, 1-spost
};
GLfloat vtx[] = {
0, 0,
0, glConfig.vidHeight,
glConfig.vidWidth, glConfig.vidHeight,
glConfig.vidWidth, 0
};
qglTexCoordPointer( 2, GL_FLOAT, 0, tex );
qglVertexPointer ( 2, GL_FLOAT, 0, vtx );
qglDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
/* if (glcol)
qglEnableClientState( GL_COLOR_ARRAY );
if (!text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );*/
#else
qglBegin(GL_QUADS);
qglColor4f(1.0f, 1.0f, 1.0f, alpha);
qglTexCoord2f(0+spost2, 1-spost);
qglVertex2f(0, 0);
qglTexCoord2f(0+spost2, 0+spost);
qglVertex2f(0, glConfig.vidHeight);
qglTexCoord2f(1-spost2, 0+spost);
qglVertex2f(glConfig.vidWidth, glConfig.vidHeight);
qglTexCoord2f(1-spost2, 1-spost);
qglVertex2f(glConfig.vidWidth, 0);
qglEnd();
#endif
if (tr_distortionAlpha == 1.0f && tr_distortionStretch == 0.0f)
{ //no overrides
if (tr_distortionNegate)
{ //probably the crazy alternate saber trail
alpha = 0.8f;
GL_State(GLS_SRCBLEND_ZERO|GLS_DSTBLEND_ONE_MINUS_SRC_COLOR);
}
else
{
alpha = 0.5f;
GL_State(GLS_SRCBLEND_SRC_ALPHA|GLS_DSTBLEND_SRC_ALPHA);
}
spost = sin(tr.refdef.time*0.0008f);
if (spost < 0.0f)
{
spost = -spost;
}
spost *= 0.08f;
spost2 = sin(tr.refdef.time*0.0008f);
if (spost2 < 0.0f)
{
spost2 = -spost2;
}
spost2 *= 0.2f;
#ifdef HAVE_GLES
qglColor4f(1.0f, 1.0f, 1.0f, alpha);
/* GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (!text)
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglDisableClientState( GL_COLOR_ARRAY );*/
GLfloat tex[] = {
0+spost2, 1-spost,
0+spost2, 0+spost,
1-spost2, 0+spost,
1-spost2, 1-spost
};
GLfloat vtx[] = {
0, 0,
0, glConfig.vidHeight,
glConfig.vidWidth, glConfig.vidHeight,
glConfig.vidWidth, 0
};
qglTexCoordPointer( 2, GL_FLOAT, 0, tex );
qglVertexPointer ( 2, GL_FLOAT, 0, vtx );
qglDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
#else
qglBegin(GL_QUADS);
qglColor4f(1.0f, 1.0f, 1.0f, alpha);
qglTexCoord2f(0+spost2, 1-spost);
qglVertex2f(0, 0);
qglTexCoord2f(0+spost2, 0+spost);
qglVertex2f(0, glConfig.vidHeight);
qglTexCoord2f(1-spost2, 0+spost);
qglVertex2f(glConfig.vidWidth, glConfig.vidHeight);
qglTexCoord2f(1-spost2, 1-spost);
qglVertex2f(glConfig.vidWidth, 0);
qglEnd();
#endif
}
#ifdef HAVE_GLES
if (glcol)
qglEnableClientState( GL_COLOR_ARRAY );
if (!text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
#endif
//pop the view matrices back
qglMatrixMode(GL_PROJECTION);
qglPopMatrix();
qglMatrixMode(GL_MODELVIEW);
qglPopMatrix();
qglDisable( GL_STENCIL_TEST );
}
/*
=============
RE_StretchRaw
FIXME: not exactly backend
Stretches a raw 32 bit power of 2 bitmap image over the given screen rectangle.
Used for cinematics.
=============
*/
void RE_StretchRaw( int x, int y, int w, int h, int cols, int rows, const byte *data, int client, qboolean dirty ) {
int i, j;
int start, end;
if ( !tr.registered ) {
return;
}
R_IssuePendingRenderCommands();
if ( tess.numIndexes ) {
RB_EndSurface();
}
// we definately want to sync every frame for the cinematics
qglFinish();
start = 0;
if ( r_speeds->integer ) {
start = ri.Milliseconds();
}
// make sure rows and cols are powers of 2
for ( i = 0 ; ( 1 << i ) < cols ; i++ ) {
}
for ( j = 0 ; ( 1 << j ) < rows ; j++ ) {
}
if ( ( 1 << i ) != cols || ( 1 << j ) != rows ) {
ri.Error( ERR_DROP, "Draw_StretchRaw: size not a power of 2: %i by %i", cols, rows );
}
GL_Bind( tr.scratchImage[client] );
// if the scratchImage isn't in the format we want, specify it as a new texture
if ( cols != tr.scratchImage[client]->width || rows != tr.scratchImage[client]->height ) {
tr.scratchImage[client]->width = tr.scratchImage[client]->uploadWidth = cols;
tr.scratchImage[client]->height = tr.scratchImage[client]->uploadHeight = rows;
#ifdef USE_OPENGLES
qglTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, cols, rows, 0, GL_RGBA, GL_UNSIGNED_BYTE, data );
#else
qglTexImage2D( GL_TEXTURE_2D, 0, 3, cols, rows, 0, GL_RGBA, GL_UNSIGNED_BYTE, data );
#endif
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
} else {
if ( dirty ) {
// otherwise, just subimage upload it so that drivers can tell we are going to be changing
// it and don't try and do a texture compression
qglTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, cols, rows, GL_RGBA, GL_UNSIGNED_BYTE, data );
}
}
if ( r_speeds->integer ) {
end = ri.Milliseconds();
ri.Printf( PRINT_ALL, "qglTexSubImage2D %i, %i: %i msec\n", cols, rows, end - start );
}
RB_SetGL2D();
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
#ifdef USE_OPENGLES
GLfloat tex[] = {
0.5f / cols, 0.5f / rows,
( cols - 0.5f ) / cols , 0.5f / rows,
( cols - 0.5f ) / cols, ( rows - 0.5f ) / rows,
0.5f / cols, ( rows - 0.5f ) / rows };
GLfloat vtx[] = {
x, y,
x+w, y,
x+w, y+h,
x, y+h };
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 );
qglTexCoordPointer( 2, GL_FLOAT, 0, tex );
qglVertexPointer ( 2, GL_FLOAT, 0, vtx );
qglDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
if (!text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
if (glcol)
qglEnableClientState(GL_COLOR_ARRAY);
#else
qglBegin( GL_QUADS );
qglTexCoord2f( 0.5f / cols, 0.5f / rows );
qglVertex2f( x, y );
qglTexCoord2f( ( cols - 0.5f ) / cols, 0.5f / rows );
qglVertex2f( x + w, y );
qglTexCoord2f( ( cols - 0.5f ) / cols, ( rows - 0.5f ) / rows );
qglVertex2f( x + w, y + h );
qglTexCoord2f( 0.5f / cols, ( rows - 0.5f ) / rows );
qglVertex2f( x, y + h );
qglEnd();
#endif
}
void DrawTerrain( terrainMesh_t *pm, bool bPoints, bool bShade ) {
int i;
int w;
int h;
int x;
int y;
//int n;
//float x1;
//float y1;
float scale_x;
float scale_y;
//vec3_t pSelectedPoints[ MAX_TERRA_POINTS ];
//int nIndex;
terravert_t a0;
terravert_t a1;
terravert_t a2;
terravert_t b0;
terravert_t b1;
terravert_t b2;
terrainVert_t *vert;
qtexture_t *texture;
h = pm->height - 1;
w = pm->width - 1;
scale_x = pm->scale_x;
scale_y = pm->scale_y;
qglShadeModel (GL_SMOOTH);
if ( bShade ) {
for( i = 0; i < pm->numtextures; i++ ) {
texture = pm->textures[ i ];
qglBindTexture( GL_TEXTURE_2D, texture->texture_number );
vert = pm->heightmap;
for( y = 0; y < h; y++ ) {
qglBegin( GL_TRIANGLES );
for( x = 0; x < w; x++, vert++ ) {
Terrain_GetTriangles( pm, x, y, &a0, &a1, &a2, &b0, &b1, &b2, texture );
// first tri
if ( a0.rgba[ 3 ] || a1.rgba[ 3 ] || a2.rgba[ 3 ] ) {
qglColor4fv( a0.rgba );
qglTexCoord2fv( a0.tc );
qglVertex3fv( a0.xyz );
qglColor4fv( a1.rgba );
qglTexCoord2fv( a1.tc );
qglVertex3fv( a1.xyz );
qglColor4fv( a2.rgba );
qglTexCoord2fv( a2.tc );
qglVertex3fv( a2.xyz );
}
// second tri
if ( b0.rgba[ 3 ] || b1.rgba[ 3 ] || b2.rgba[ 3 ] ) {
qglColor4fv( b0.rgba );
qglTexCoord2fv( b0.tc );
qglVertex3fv( b0.xyz );
qglColor4fv( b1.rgba );
qglTexCoord2fv( b1.tc );
qglVertex3fv( b1.xyz );
qglColor4fv( b2.rgba );
qglTexCoord2fv( b2.tc );
qglVertex3fv( b2.xyz );
}
}
qglEnd ();
}
}
} else {
for( i = 0; i < pm->numtextures; i++ ) {
texture = pm->textures[ i ];
qglBindTexture( GL_TEXTURE_2D, texture->texture_number );
vert = pm->heightmap;
for( y = 0; y < h; y++ ) {
qglBegin( GL_TRIANGLES );
for( x = 0; x < w; x++, vert++ ) {
Terrain_GetTriangles( pm, x, y, &a0, &a1, &a2, &b0, &b1, &b2, texture );
// first tri
if ( a0.rgba[ 3 ] || a1.rgba[ 3 ] || a2.rgba[ 3 ] ) {
qglColor4fv( a0.rgba );
qglTexCoord2fv( a0.tc );
qglVertex3fv( a0.xyz );
qglColor4fv( a1.rgba );
qglTexCoord2fv( a1.tc );
qglVertex3fv( a1.xyz );
qglColor4fv( a2.rgba );
qglTexCoord2fv( a2.tc );
qglVertex3fv( a2.xyz );
}
// second tri
if ( b0.rgba[ 3 ] || b1.rgba[ 3 ] || b2.rgba[ 3 ] ) {
qglColor4fv( b0.rgba );
qglTexCoord2fv( b0.tc );
qglVertex3fv( b0.xyz );
qglColor4fv( b1.rgba );
qglTexCoord2fv( b1.tc );
qglVertex3fv( b1.xyz );
qglColor4fv( b2.rgba );
qglTexCoord2fv( b2.tc );
qglVertex3fv( b2.xyz );
}
}
qglEnd ();
}
}
}
qglPushAttrib( GL_CURRENT_BIT );
bool bDisabledLighting = qglIsEnabled( GL_LIGHTING );
if ( bDisabledLighting ) {
qglDisable( GL_LIGHTING );
}
#if 0
terrainVert_t *currentrow;
terrainVert_t *nextrow;
float x2;
float y2;
// Draw normals
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglColor3f( 1, 1, 1 );
qglBegin( GL_LINES );
y2 = pm->origin[ 1 ];
nextrow = pm->heightmap;
for( y = 0; y < h; y++ ) {
y1 = y2;
y2 += scale_y;
x2 = pm->origin[ 0 ];
currentrow = nextrow;
nextrow = currentrow + pm->width;
for( x = 0; x < w; x++ ) {
x1 = x2;
x2 += scale_x;
// normals
qglVertex3f( x1, y1, pm->origin[ 2 ] + currentrow[ x ].height );
qglVertex3f( x1 + currentrow[ x ].normal[ 0 ] * 16.0f, y1 + currentrow[ x ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + currentrow[ x ].height + currentrow[ x ].normal[ 2 ] * 16.0f );
qglVertex3f( x2, y1, pm->origin[ 2 ] + currentrow[ x + 1 ].height );
qglVertex3f( x2 + currentrow[ x + 1 ].normal[ 0 ] * 16.0f, y1 + currentrow[ x + 1 ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + currentrow[ x + 1 ].height + currentrow[ x + 1 ].normal[ 2 ] * 16.0f );
qglVertex3f( x1, y2, pm->origin[ 2 ] + nextrow[ x ].height );
qglVertex3f( x1 + nextrow[ x ].normal[ 0 ] * 16.0f, y2 + nextrow[ x ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + nextrow[ x ].height + nextrow[ x ].normal[ 2 ] * 16.0f );
qglVertex3f( x2, y2, pm->origin[ 2 ] + nextrow[ x + 1 ].height );
qglVertex3f( x2 + nextrow[ x + 1 ].normal[ 0 ] * 16.0f, y2 + nextrow[ x + 1 ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + nextrow[ x + 1 ].height + nextrow[ x + 1 ].normal[ 2 ] * 16.0f );
}
}
qglEnd ();
qglEnable( GL_TEXTURE_2D );
#endif
#if 0
if ( bPoints && ( g_qeglobals.d_select_mode == sel_terrainpoint || g_qeglobals.d_select_mode == sel_area ) ) {
qglPointSize( 6 );
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglBegin( GL_POINTS );
nIndex = 0;
qglColor4f( 1, 0, 1, 1 );
y1 = pm->origin[ 1 ];
for ( y = 0; y < pm->height; y++, y1 += pm->scale_y ) {
x1 = pm->origin[ 0 ];
for( x = 0; x < pm->width; x++, x1 += pm->scale_x ) {
// FIXME: need to not do loop lookups inside here
n = Terrain_PointInMoveList( &pm->heightmap[ x + y * pm->width ] );
if ( n >= 0 ) {
VectorSet( pSelectedPoints[ nIndex ], x1, y1, pm->heightmap[ x + y * pm->width ].height + pm->origin[ 2 ] );
nIndex++;
} else {
qglVertex3f( x1, y1, pm->origin[ 2 ] + pm->heightmap[ x + y * pm->width ].height );
}
}
}
qglEnd();
qglEnable( GL_TEXTURE_2D );
if ( nIndex > 0 ) {
qglBegin( GL_POINTS );
qglColor4f( 0, 0, 1, 1 );
while( nIndex-- > 0 ) {
qglVertex3fv( pSelectedPoints[ nIndex ] );
}
qglEnd();
}
}
#endif
if ( g_qeglobals.d_numterrapoints && ( ( g_qeglobals.d_select_mode == sel_terrainpoint ) || ( g_qeglobals.d_select_mode == sel_terraintexture ) ) ) {
#if 0
qglPointSize( 6 );
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglBegin( GL_POINTS );
qglColor4f( 1, 0, 1, 1 );
for( i = 0; i < g_qeglobals.d_numterrapoints; i++ ) {
qglVertex3fv( g_qeglobals.d_terrapoints[ i ]->xyz );
}
qglEnd();
qglEnable( GL_TEXTURE_2D );
#endif
brush_t *pb;
terrainMesh_t *pm;
pm = NULL;
for( pb = active_brushes .next; pb != &active_brushes; pb = pb->next ) {
if ( pb->terrainBrush ) {
pm = pb->pTerrain;
break;
}
}
if ( pm ) {
qglDisable( GL_TEXTURE_2D );
qglBegin( GL_TRIANGLES );
qglEnable( GL_BLEND );
qglColor4f( 0.25, 0.5, 1, 0.35 );
for( i = 0; i < g_qeglobals.d_numterrapoints; i++ ) {
terravert_t a0;
terravert_t a1;
terravert_t a2;
qglColor4f( 0.25, 0.5, 1, g_qeglobals.d_terrapoints[ i ]->scale * 0.75 + 0.25 );
Terrain_GetTriangle( pm, g_qeglobals.d_terrapoints[ i ]->tri.index * 2, &a0, &a1, &a2 );
qglVertex3fv( a0.xyz );
qglVertex3fv( a1.xyz );
qglVertex3fv( a2.xyz );
Terrain_GetTriangle( pm, g_qeglobals.d_terrapoints[ i ]->tri.index * 2 + 1, &a0, &a1, &a2 );
qglVertex3fv( a0.xyz );
qglVertex3fv( a1.xyz );
qglVertex3fv( a2.xyz );
}
qglEnd();
qglDisable( GL_BLEND );
qglEnable( GL_TEXTURE_2D );
}
}
}