/*
=============
R_DrawStretchImage
=============
*/
void R_DrawStretchImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *gl, float alpha)
{
const vec4_t color[4] = {
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha}
};
const vec3_t verts[4] = {
{x, y, 0},
{x+w, y, 0},
{x+w, y+h, 0},
{x, y+h, 0}
};
if (scrap_dirty)
Scrap_Upload ();
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
rb_vertex = rb_index = 0;
memcpy(&indexArray[rb_index], indices, sizeof(indices));
rb_index = 6;
Vector2Set(texCoordArray[0][0], gl->sl, gl->tl);
Vector2Set(texCoordArray[0][1], gl->sh, gl->tl);
Vector2Set(texCoordArray[0][2], gl->sh, gl->th);
Vector2Set(texCoordArray[0][3], gl->sl, gl->th);
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray[rb_vertex], color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST);
}
}
/*
=============
R_DrawStretchImage
=============
*/
void R_DrawStretchImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *gl, float alpha)
{
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, alpha);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST);
}
}
/*
======================
R_DrawFill
Fills a box of pixels with a
24-bit color w/ alpha
===========================
*/
void R_DrawFill (int32_t x, int32_t y, int32_t w, int32_t h, int32_t red, int32_t green, int32_t blue, int32_t alpha)
{
const vec_t r = min(red, 255)*DIV255;
const vec_t g = min(green, 255)*DIV255;
const vec_t b = min(blue, 255)*DIV255;
const vec_t a = max(min(alpha, 255), 1)*DIV255;
const vec4_t color[4] = {
{r, g, b, a},
{r, g, b, a},
{r, g, b, a},
{r, g, b, a}
};
const vec3_t verts[4] = {
{x, y, 0},
{x+w, y, 0},
{x+w, y+h, 0},
{x, y+h, 0}
};
// GL_DisableTexture (0);
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind (glMedia.whitetexture->texnum);
rb_vertex = rb_index = 0;
memcpy(&indexArray[rb_index], indices, sizeof(indices));
rb_index = 6;
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
// GL_EnableTexture (0);
}
/*
=================
R_SetBlendModeOn
=================
*/
void R_SetBlendModeOn (image_t *skin)
{
GL_TexEnv( GL_MODULATE );
if (skin)
GL_Bind(skin->texnum);
GL_ShadeModel (GL_SMOOTH);
if (currententity->flags & RF_TRANSLUCENT)
{
GL_DepthMask (false);
if (currententity->flags & RF_TRANS_ADDITIVE)
{
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE);
glColor4ub(255, 255, 255, 255);
GL_ShadeModel (GL_FLAT);
}
else
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Enable (GL_BLEND);
}
}
void Pass::finalize() {
GL_SwitchTexUnit(GL_TEXTURE0_ARB);
//GL_TextureEnvMode(GL_REPLACE);
if(viewer)
GL_PopCamera();
//GL_Disable(GL_SCISSOR_TEST);
GL_DepthMask(GL_FALSE);
GL_Disable(GL_DEPTH_TEST);
GL_Disable(GL_FOG);
GL_Disable(GL_ALPHA_TEST);
if(gfx_postProcessing.integer) {
target->unmakeTarget();
} else {
glScreen->unmakeTarget();
}
GL_Disable(GL_LIGHTING);
for(lightCount-=1;lightCount>=0;lightCount--)
GL_Disable(GL_LIGHT0+lightCount);
Cvar_SetVarValue(&gfx_GLSLPass, 0);
glPopAttrib();
//if(gfx_postProcessing.integer && gfx_GLSLQuality.integer>1)
//glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboTargetBufferId);
#ifdef DEBUG
GLSL_catchLastError("Pass::finalize(): ");
#endif
}
/*
=================
R_SetBlendModeOff
=================
*/
void R_SetBlendModeOff (void)
{
if ( currententity->flags & RF_TRANSLUCENT )
{
GL_DepthMask (true);
GL_Disable(GL_BLEND);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
}
/*
======================
R_DrawFill
Fills a box of pixels with a
24-bit color w/ alpha
===========================
*/
void R_DrawFill (int32_t x, int32_t y, int32_t w, int32_t h, int32_t red, int32_t green, int32_t blue, int32_t alpha)
{
int32_t i;
vec2_t verts[4];
red = min(red, 255);
green = min(green, 255);
blue = min(blue, 255);
alpha = max(min(alpha, 255), 1);
// GL_DisableTexture (0);
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind (glMedia.whitetexture->texnum);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], red*DIV255, green*DIV255, blue*DIV255, alpha*DIV255);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
// GL_EnableTexture (0);
}
/*
================
R_FlushChars
================
*/
void R_FlushChars (void)
{
if (rb_vertex == 0 || rb_index == 0) // nothing to flush
return;
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind(draw_chars->texnum);
RB_RenderMeshGeneric (false);
char_count = 0;
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
}
static void R_DrawExplosion_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
{
int surfacelistindex = 0;
const int numtriangles = EXPLOSIONTRIS, numverts = EXPLOSIONVERTS;
GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
GL_DepthMask(false);
GL_DepthRange(0, 1);
GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
GL_DepthTest(true);
GL_CullFace(r_refdef.view.cullface_back);
R_EntityMatrix(&identitymatrix);
// R_Mesh_ResetTextureState();
R_SetupShader_Generic(explosiontexture, NULL, GL_MODULATE, 1, false, false, false);
for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
{
const explosion_t *e = explosion + surfacelist[surfacelistindex];
// FIXME: this can't properly handle r_refdef.view.colorscale > 1
GL_Color(e->alpha * r_refdef.view.colorscale, e->alpha * r_refdef.view.colorscale, e->alpha * r_refdef.view.colorscale, 1);
R_Mesh_PrepareVertices_Generic_Arrays(numverts, e->vert[0], NULL, explosiontexcoord2f[0]);
R_Mesh_Draw(0, numverts, 0, numtriangles, NULL, NULL, 0, explosiontris[0], NULL, 0);
}
}
/*
=================
R_DrawSpriteModel
=================
*/
void R_DrawSpriteModel (entity_t *e)
{
float alpha = 1.0f;
vec2_t texCoord[4];
vec3_t point[4];
dsprite_t *psprite;
dsprframe_t *frame;
float *up, *right;
int i;
// don't even bother culling, because it's just a single
// polygon without a surface cache
psprite = (dsprite_t *)currentmodel->extradata;
e->frame %= psprite->numframes;
frame = &psprite->frames[e->frame];
if (!frame) return;
c_alias_polys += 2;
// normal sprite
up = vup;
right = vright;
if (e->flags & RF_TRANSLUCENT)
alpha = e->alpha;
R_SetVertexRGBScale (true);
// Psychospaz's additive transparency
if ((currententity->flags & RF_TRANS_ADDITIVE) && (alpha != 1.0f))
{
GL_Enable (GL_BLEND);
GL_TexEnv (GL_MODULATE);
GL_Disable (GL_ALPHA_TEST);
GL_DepthMask (false);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE);
}
else
{
GL_TexEnv (GL_MODULATE);
if (alpha == 1.0f) {
GL_Enable (GL_ALPHA_TEST);
GL_DepthMask (true);
}
else {
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_DepthMask (false);
GL_Enable (GL_BLEND);
GL_Disable (GL_ALPHA_TEST);
}
}
GL_Bind(currentmodel->skins[0][e->frame]->texnum);
Vector2Set(texCoord[0], 0, 1);
Vector2Set(texCoord[1], 0, 0);
Vector2Set(texCoord[2], 1, 0);
Vector2Set(texCoord[3], 1, 1);
VectorMA (e->origin, -frame->origin_y, up, point[0]);
VectorMA (point[0], -frame->origin_x, right, point[0]);
VectorMA (e->origin, frame->height - frame->origin_y, up, point[1]);
VectorMA (point[1], -frame->origin_x, right, point[1]);
VectorMA (e->origin, frame->height - frame->origin_y, up, point[2]);
VectorMA (point[2], frame->width - frame->origin_x, right, point[2]);
VectorMA (e->origin, -frame->origin_y, up, point[3]);
VectorMA (point[3], frame->width - frame->origin_x, right, point[3]);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], point[i][0], point[i][1], point[i][2]);
VA_SetElem4(colorArray[rb_vertex], 1.0f, 1.0f, 1.0f, alpha);
rb_vertex++;
}
RB_DrawArrays ();
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_TexEnv (GL_REPLACE);
GL_DepthMask (true);
GL_Disable (GL_ALPHA_TEST);
GL_Disable (GL_BLEND);
R_SetVertexRGBScale (false);
RB_DrawMeshTris ();
rb_vertex = rb_index = 0;
}
void Pass::setup(GLRenderer *) {
vec4_t ambient = { sunLight.ambient[0] * 0.8, sunLight.ambient[1] * 0.8, sunLight.ambient[2] * 0.95, 1 };
GLSL_reset();
shader = NULL;
lightCount = 0;
glPushAttrib(attrib_bits);
//GL_Enable(GL_SCISSOR_TEST);
GL_SwitchTexUnit(GL_TEXTURE0_ARB);
//defaults for pass
GL_Enable(GL_BLEND);
GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
GL_Enable(GL_CULL_FACE);
GL_Enable(GL_ALPHA_TEST);
//glAlphaFunc(GL_GREATER, 0.0);
GL_ResetColor();
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
//enable the lights for this pass by default
if(allowLighting()) {
if(gfx_GLSLQuality.integer <= 1)
M_MultVec3(ambient, 1.5, ambient);
GL_Enable(GL_LIGHTING);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, true);
glShadeModel(GL_SMOOTH);
}
//GL_Enable(GL_NORMALIZE);
//framebuffer
if(gfx_postProcessing.integer) {
if(!target)
target = glScreen;
target->makeTarget();
} else {
glScreen->makeTarget();
}
//depth
GL_Enable(GL_DEPTH_TEST);
GL_DepthMask(depthMask);
GL_DepthFunc(depthFunc);
if(preclearDepth) {
glClearDepth(1.0);
glClear(GL_DEPTH_BUFFER_BIT);
}
if(viewer) {
vec4_t rect;
//FIXME: probably should be a data member for configurable pass "windows"
SET_VEC4(rect, 0, 0, viewer->width, viewer->height);
Scene_SetFrustum(viewer, rect);
Scene_BuildOccluderList(viewer);
if(gfx_debugCamera.integer>0) {
camera_t debugcam;
vec3_t back;
M_MultVec3(viewer->viewaxis[AXIS_FORWARD], -gfx_debugCamera.integer, back);
memcpy(&debugcam, viewer, sizeof(camera_t));
M_AddVec3(debugcam.origin, back, debugcam.origin);
GL_PushCamera(&debugcam);
} else {
GL_PushCamera(viewer);
//scene_cam = viewer;
}
//fog
if (viewer->fog_far > 0 && gfx_fog.integer)
{
vec4_t fog_color = { gfx_fogr.value, gfx_fogg.value, gfx_fogb.value, 0 };
GL_Enable(GL_FOG);
if(gfx_nicerFog.integer)
{
glFogf(GL_FOG_MODE, GL_EXP2);
glFogf(GL_FOG_DENSITY, 1.5 / viewer->fog_far); // Notaus: old value was fixed at 0.00072 and not appropriate for very foggy maps
}
else
{
glFogf(GL_FOG_MODE, GL_LINEAR);
}
glHint(GL_FOG_HINT, GL_NICEST);
if (viewer->fog_near > 0 && viewer->fog_far >= viewer->fog_near)
{
glFogf(GL_FOG_START, viewer->fog_near);
glFogf(GL_FOG_END, viewer->fog_far);
fog_near = viewer->fog_near;
fog_far = viewer->fog_far;
}
else
{
glFogf(GL_FOG_START, gfx_fog_near.value);
glFogf(GL_FOG_END, gfx_fog_far.value);
fog_near = gfx_fog_near.value;
fog_far = gfx_fog_far.value;
}
glFogfv(GL_FOG_COLOR, fog_color);
}
else if (gfx_fog.integer==0) {
GL_Enable(GL_FOG);
glFogf(GL_FOG_START, 90000);
glFogf(GL_FOG_END, 100000); //shaders make it better just to set this ridiculously far out
} else {
GL_Disable(GL_FOG);
}
} else {
GL_Disable(GL_FOG);
}
if(gfx_GLSL.integer)
Cvar_SetVarValue(&gfx_GLSLPass, 1);
else
GL_TexModulate(2.0);
#ifdef DEBUG
GLSL_catchLastError("Pass::setup()");
#endif
}
/*
==================
GL_Setup3D
TODO: time is messed up
==================
*/
void GL_Setup3D (int time){
double clipPlane[4];
QGL_LogPrintf("---------- RB_Setup3D ----------\n");
backEnd.projection2D = false;
backEnd.time = time;
backEnd.floatTime = MS2SEC(Sys_Milliseconds());
backEnd.viewport.x = backEnd.viewParms.viewport.x;
backEnd.viewport.y = backEnd.viewParms.viewport.y;
backEnd.viewport.width = backEnd.viewParms.viewport.width;
backEnd.viewport.height = backEnd.viewParms.viewport.height;
backEnd.scissor.x = backEnd.viewParms.scissor.x;
backEnd.scissor.y = backEnd.viewParms.scissor.y;
backEnd.scissor.width = backEnd.viewParms.scissor.width;
backEnd.scissor.height = backEnd.viewParms.scissor.height;
backEnd.coordScale[0] = 1.0f / backEnd.viewport.width;
backEnd.coordScale[1] = 1.0f / backEnd.viewport.height;
backEnd.coordBias[0] = -backEnd.viewport.x * backEnd.coordScale[0];
backEnd.coordBias[1] = -backEnd.viewport.y * backEnd.coordScale[1];
backEnd.depthFilling = false;
backEnd.debugRendering = false;
backEnd.currentColorCaptured = SORT_BAD;
backEnd.currentDepthCaptured = false;
// Set up the viewport
GL_Viewport(backEnd.viewport);
// Set up the scissor
GL_Scissor(backEnd.viewport);
// Set up the depth bounds
if (glConfig.depthBoundsTestAvailable)
GL_DepthBounds(0.0f, 1.0f);
// Set the projection matrix
GL_LoadMatrix(GL_PROJECTION, backEnd.viewParms.projectionMatrix);
// Set the modelview matrix
GL_LoadIdentity(GL_MODELVIEW);
// Set the GL state
GL_PolygonMode(GL_FILL);
GL_Disable(GL_CULL_FACE);
GL_Disable(GL_POLYGON_OFFSET_FILL);
GL_Disable(GL_BLEND);
GL_Disable(GL_ALPHA_TEST);
GL_Disable(GL_DEPTH_TEST);
GL_Disable(GL_STENCIL_TEST);
GL_DepthRange(0.0f, 1.0f);
GL_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
GL_DepthMask(GL_TRUE);
GL_StencilMask(255);
// Enable the clip plane if needed
if (backEnd.viewParms.viewType != VIEW_MIRROR)
qglDisable(GL_CLIP_PLANE0);
else {
clipPlane[0] = -DotProduct(backEnd.viewParms.axis[1], backEnd.viewParms.clipPlane.normal);
clipPlane[1] = DotProduct(backEnd.viewParms.axis[2], backEnd.viewParms.clipPlane.normal);
clipPlane[2] = -DotProduct(backEnd.viewParms.axis[0], backEnd.viewParms.clipPlane.normal);
clipPlane[3] = DotProduct(backEnd.viewParms.origin, backEnd.viewParms.clipPlane.normal) - backEnd.viewParms.clipPlane.dist;
qglEnable(GL_CLIP_PLANE0);
qglClipPlane(GL_CLIP_PLANE0, clipPlane);
}
// Enable multisampling if available
if (glConfig.multiSamples > 1)
qglEnable(GL_MULTISAMPLE);
// Clear the buffers
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
qglClearDepth(1.0f);
qglClearStencil(0);
if (backEnd.viewParms.primaryView)
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
else
qglClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
// Check for errors
if (!r_ignoreGLErrors->integerValue)
GL_CheckForErrors();
QGL_LogPrintf("--------------------\n");
}
/*
==================
GL_Setup2D
TODO: time is messed up
==================
*/
void GL_Setup2D (int time){
mat4_t projectionMatrix = {2.0f / backEnd.cropWidth, 0.0f, 0.0f, 0.0f, 0.0f, -2.0f / backEnd.cropHeight, 0.0f, 0.0f, 0.0f, 0.0f, -2.0f, 0.0f, -1.0f, 1.0f, -1.0f, 1.0f};
QGL_LogPrintf("---------- RB_Setup2D ----------\n");
backEnd.projection2D = true;
backEnd.time = time;
backEnd.floatTime = MS2SEC(Sys_Milliseconds());
backEnd.viewport.x = 0;
backEnd.viewport.y = 0;
backEnd.viewport.width = backEnd.cropWidth;
backEnd.viewport.height = backEnd.cropHeight;
backEnd.scissor.x = 0;
backEnd.scissor.y = 0;
backEnd.scissor.width = backEnd.cropWidth;
backEnd.scissor.height = backEnd.cropHeight;
backEnd.coordScale[0] = 1.0f / backEnd.viewport.width;
backEnd.coordScale[1] = 1.0f / backEnd.viewport.height;
backEnd.coordBias[0] = -backEnd.viewport.x * backEnd.coordScale[0];
backEnd.coordBias[1] = -backEnd.viewport.y * backEnd.coordScale[1];
backEnd.depthFilling = false;
backEnd.debugRendering = false;
backEnd.currentColorCaptured = SORT_BAD;
backEnd.currentDepthCaptured = false;
// Set up the viewport
GL_Viewport(backEnd.viewport);
// Set up the scissor
GL_Scissor(backEnd.viewport);
// Set up the depth bounds
if (glConfig.depthBoundsTestAvailable)
GL_DepthBounds(0.0f, 1.0f);
// Set the projection matrix
GL_LoadMatrix(GL_PROJECTION, projectionMatrix);
// Set the modelview matrix
GL_LoadIdentity(GL_MODELVIEW);
// Set the GL state
GL_PolygonMode(GL_FILL);
GL_Disable(GL_CULL_FACE);
GL_Disable(GL_POLYGON_OFFSET_FILL);
GL_Disable(GL_BLEND);
GL_Disable(GL_ALPHA_TEST);
GL_Disable(GL_DEPTH_TEST);
GL_Disable(GL_STENCIL_TEST);
GL_DepthRange(0.0f, 1.0f);
GL_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
GL_DepthMask(GL_FALSE);
GL_StencilMask(255);
// Disable the clip plane
qglDisable(GL_CLIP_PLANE0);
// Disable multisampling if available
if (glConfig.multiSamples > 1)
qglDisable(GL_MULTISAMPLE);
// Check for errors
if (!r_ignoreGLErrors->integerValue)
GL_CheckForErrors();
QGL_LogPrintf("--------------------\n");
}
void R_DrawCameraEffect (void)
{
image_t *image[2];
int32_t x, y, w, h, i, j;
float texparms[2][4];
vec2_t texCoord[4];
vec3_t verts[4];
renderparms_t cameraParms;
image[0] = R_DrawFindPic ("/gfx/2d/screenstatic.tga");
image[1] = R_DrawFindPic ("/gfx/2d/scanlines.tga");
if (!image[0] || !image[1])
return;
x = y = 0; w = vid.width; h = vid.height;
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_BlendFunc (GL_DST_COLOR, GL_SRC_COLOR);
GL_DepthMask (false);
VectorSet(verts[0], x, y, 0);
VectorSet(verts[1], x+w, y, 0);
VectorSet(verts[2], x+w, y+h, 0);
VectorSet(verts[3], x, y+h, 0);
Vector4Set(texparms[0], 2, 2, -30, 10);
Vector4Set(texparms[1], 1, 10, 0, 0);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
rb_vertex = 4;
for (i=0; i<2; i++)
{
GL_Bind (image[i]->texnum);
Vector2Set(texCoord[0], x/image[i]->width, y/image[i]->height);
Vector2Set(texCoord[1], (x+w)/image[i]->width, y/image[i]->height);
Vector2Set(texCoord[2], (x+w)/image[i]->width, (y+h)/image[i]->height);
Vector2Set(texCoord[3], x/image[i]->width, (y+h)/image[i]->height);
Mod_SetRenderParmsDefaults (&cameraParms);
cameraParms.scale_x = texparms[i][0];
cameraParms.scale_y = texparms[i][1];
cameraParms.scroll_x = texparms[i][2];
cameraParms.scroll_y = texparms[i][3];
RB_ModifyTextureCoords (&texCoord[0][0], &verts[0][0], 4, cameraParms);
for (j=0; j<4; j++) {
VA_SetElem2(texCoordArray[0][j], texCoord[j][0], texCoord[j][1]);
VA_SetElem3(vertexArray[j], verts[j][0], verts[j][1], verts[j][2]);
VA_SetElem4(colorArray[j], 1, 1, 1, 1);
}
RB_DrawArrays ();
}
rb_vertex = rb_index = 0;
GL_DepthMask (true);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
}
/*
=============
R_DrawScaledImage
Psychospaz's code for drawing stretched crosshairs
=============
*/
void R_DrawScaledImage (int32_t x, int32_t y, float scale, float alpha, image_t *gl)
{
float xoff, yoff;
float scale_x, scale_y;
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
// add alpha support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
scale_x = scale_y = scale;
scale_x *= gl->replace_scale_w; // scale down if replacing a pcx image
scale_y *= gl->replace_scale_h; // scale down if replacing a pcx image
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
xoff = gl->width*scale_x-gl->width;
yoff = gl->height*scale_y-gl->height;
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+gl->width+xoff, y);
Vector2Set(verts[2], x+gl->width+xoff, y+gl->height+yoff);
Vector2Set(verts[3], x, y+gl->height+yoff);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, alpha);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST); // add alpha support
}
}
/*
=============
R_DrawScaledImage
Psychospaz's code for drawing stretched crosshairs
=============
*/
void R_DrawScaledImage (int32_t x, int32_t y, float scale, float alpha, image_t *gl)
{
float xoff, yoff;
float scale_x, scale_y;
const vec4_t color[4] = {
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha}
};
if (scrap_dirty)
Scrap_Upload ();
// add alpha support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
scale_x = scale_y = scale;
scale_x *= gl->replace_scale_w; // scale down if replacing a pcx image
scale_y *= gl->replace_scale_h; // scale down if replacing a pcx image
xoff = gl->width*scale_x-gl->width;
yoff = gl->height*scale_y-gl->height;
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
rb_index = 6;
VA_SetElem2(texCoordArray[0][0], gl->sl, gl->tl);
VA_SetElem2(texCoordArray[0][1], gl->sh, gl->tl);
VA_SetElem2(texCoordArray[0][2], gl->sh, gl->th);
VA_SetElem2(texCoordArray[0][3], gl->sl, gl->th);
VA_SetElem3(vertexArray[0], x, y, 0);
VA_SetElem3(vertexArray[1], x+gl->width+xoff, y, 0);
VA_SetElem3(vertexArray[2], x+gl->width+xoff, y+gl->height+yoff, 0);
VA_SetElem3(vertexArray[3], x, y+gl->height+yoff, 0);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST); // add alpha support
}
}
/**
* @brief This routine is responsible for setting the most commonly changed state in Q3.
*/
void GL_State(uint32_t stateBits)
{
uint32_t diff = stateBits ^ glState.glStateBits;
if (!diff)
{
return;
}
// check depthFunc bits
if (diff & GLS_DEPTHFUNC_BITS)
{
switch (stateBits & GLS_DEPTHFUNC_BITS)
{
default:
GL_DepthFunc(GL_LEQUAL);
break;
case GLS_DEPTHFUNC_LESS:
GL_DepthFunc(GL_LESS);
break;
case GLS_DEPTHFUNC_EQUAL:
GL_DepthFunc(GL_EQUAL);
break;
}
}
// 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
Ren_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
Ren_Drop("GL_State: invalid dst blend state bits\n");
break;
}
glEnable(GL_BLEND);
GL_BlendFunc(srcFactor, dstFactor);
}
else
{
glDisable(GL_BLEND);
}
}
// check colormask
if (diff & GLS_COLORMASK_BITS)
{
if (stateBits & GLS_COLORMASK_BITS)
{
GL_ColorMask((stateBits & GLS_REDMASK_FALSE) ? GL_FALSE : GL_TRUE,
(stateBits & GLS_GREENMASK_FALSE) ? GL_FALSE : GL_TRUE,
(stateBits & GLS_BLUEMASK_FALSE) ? GL_FALSE : GL_TRUE,
(stateBits & GLS_ALPHAMASK_FALSE) ? GL_FALSE : GL_TRUE);
}
else
{
GL_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
}
}
// check depthmask
if (diff & GLS_DEPTHMASK_TRUE)
{
if (stateBits & GLS_DEPTHMASK_TRUE)
{
GL_DepthMask(GL_TRUE);
}
else
{
GL_DepthMask(GL_FALSE);
}
}
// fill/line mode
if (diff & GLS_POLYMODE_LINE)
{
if (stateBits & GLS_POLYMODE_LINE)
{
GL_PolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}
else
{
GL_PolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
}
// depthtest
if (diff & GLS_DEPTHTEST_DISABLE)
{
if (stateBits & GLS_DEPTHTEST_DISABLE)
{
glDisable(GL_DEPTH_TEST);
}
else
{
glEnable(GL_DEPTH_TEST);
}
}
// alpha test - deprecated in OpenGL 3.0
#if 0
if (diff & GLS_ATEST_BITS)
{
switch (stateBits & GLS_ATEST_BITS)
{
case GLS_ATEST_GT_0:
case GLS_ATEST_LT_128:
case GLS_ATEST_GE_128:
//case GLS_ATEST_GT_CUSTOM:
glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE);
break;
default:
case 0:
glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
break;
}
}
#endif
/*
if(diff & GLS_ATEST_BITS)
{
switch (stateBits & GLS_ATEST_BITS)
{
case 0:
glDisable(GL_ALPHA_TEST);
break;
case GLS_ATEST_GT_0:
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.0f);
break;
case GLS_ATEST_LT_80:
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_LESS, 0.5f);
break;
case GLS_ATEST_GE_80:
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GEQUAL, 0.5f);
break;
case GLS_ATEST_GT_CUSTOM:
// FIXME
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.5f);
break;
default:
assert(0);
break;
}
}
*/
// stenciltest
if (diff & GLS_STENCILTEST_ENABLE)
{
if (stateBits & GLS_STENCILTEST_ENABLE)
{
glEnable(GL_STENCIL_TEST);
}
else
{
glDisable(GL_STENCIL_TEST);
}
}
glState.glStateBits = stateBits;
}
/*
=============
R_DrawAliasVolumeShadow
based on code from BeefQuake R6
=============
*/
void R_DrawAliasVolumeShadow (maliasmodel_t *paliashdr, vec3_t bbox[8])
{
vec3_t light, temp, vecAdd;
float dist, highest, lowest, projected_distance;
float angle, cosp, sinp, cosy, siny, cosr, sinr, ix, iy, iz;
int i, lnum;
dlight_t *dl;
dl = r_newrefdef.dlights;
VectorSet(vecAdd, 680,0,1024); // set base vector, was 576,0,1024
// compute average light vector from dlights
for (i=0, lnum=0; i<r_newrefdef.num_dlights; i++, dl++)
{
if (VectorCompare(dl->origin, currententity->origin))
continue;
VectorSubtract(dl->origin, currententity->origin, temp);
dist = dl->intensity - VectorLength(temp);
if (dist <= 0)
continue;
lnum++;
// Factor in the intensity of a dlight
VectorScale (temp, dist*0.25, temp);
VectorAdd (vecAdd, temp, vecAdd);
}
VectorNormalize(vecAdd);
VectorScale(vecAdd, 1024, vecAdd);
// get projection distance from lightspot height
highest = lowest = bbox[0][2];
for (i=0; i<8; i++) {
if (bbox[i][2] > highest) highest = bbox[i][2];
if (bbox[i][2] < lowest) lowest = bbox[i][2];
}
projected_distance = (fabs(highest - lightspot[2]) + (highest-lowest)) / vecAdd[2];
VectorCopy(vecAdd, light);
/*cosy = cos(-currententity->angles[YAW] / 180 * M_PI);
siny = sin(-currententity->angles[YAW] / 180 * M_PI);
ix = light[0], iy = light[1];
light[0] = (cosy * (ix - 0) + siny * (0 - iy) + 0);
light[1] = (cosy * (iy - 0) + siny * (ix - 0) + 0);
light[2] += 8;*/
// reverse-rotate light vector based on angles
angle = -currententity->angles[PITCH] / 180 * M_PI;
cosp = cos(angle), sinp = sin(angle);
angle = -currententity->angles[YAW] / 180 * M_PI;
cosy = cos(angle), siny = sin(angle);
angle = currententity->angles[ROLL] / 180 * M_PI; // roll is backwards
cosr = cos(angle), sinr = sin(angle);
// rotate for yaw (z axis)
ix = light[0], iy = light[1];
light[0] = cosy * ix - siny * iy + 0;
light[1] = siny * ix + cosy * iy + 0;
// rotate for pitch (y axis)
ix = light[0], iz = light[2];
light[0] = cosp * ix + 0 + sinp * iz;
light[2] = -sinp * ix + 0 + cosp * iz;
// rotate for roll (x axis)
iy = light[1], iz = light[2];
light[1] = 0 + cosr * iy - sinr * iz;
light[2] = 0 + sinr * iy + cosr * iz;
// set up stenciling
if (!r_shadowvolumes->value)
{
qglPushAttrib(GL_STENCIL_BUFFER_BIT); // save stencil buffer
qglClear(GL_STENCIL_BUFFER_BIT);
qglColorMask(0,0,0,0);
GL_DepthMask(0);
GL_DepthFunc(GL_LESS);
GL_Enable(GL_STENCIL_TEST);
qglStencilFunc(GL_ALWAYS, 0, 255);
// qglStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);
// qglStencilMask (255);
}
// build shadow volumes and render each to stencil buffer
for (i=0; i<paliashdr->num_meshes; i++)
{
if (paliashdr->meshes[i].skins[currententity->skinnum].renderparms.nodraw
|| paliashdr->meshes[i].skins[currententity->skinnum].renderparms.alphatest
|| paliashdr->meshes[i].skins[currententity->skinnum].renderparms.noshadow)
continue;
R_BuildShadowVolume (paliashdr, i, light, projected_distance, r_shadowvolumes->value);
GL_LockArrays (shadow_va);
if (!r_shadowvolumes->value)
{
if (gl_config.atiSeparateStencil && gl_config.extStencilWrap) // Barnes ATI stenciling
{
GL_Disable(GL_CULL_FACE);
qglStencilOpSeparateATI (GL_BACK, GL_KEEP, GL_INCR_WRAP_EXT, GL_KEEP);
qglStencilOpSeparateATI (GL_FRONT, GL_KEEP, GL_DECR_WRAP_EXT, GL_KEEP);
R_DrawShadowVolume ();
GL_Enable(GL_CULL_FACE);
}
else if (gl_config.extStencilTwoSide && gl_config.extStencilWrap) // Echon's two-sided stenciling
{
GL_Disable(GL_CULL_FACE);
qglEnable (GL_STENCIL_TEST_TWO_SIDE_EXT);
qglActiveStencilFaceEXT (GL_BACK);
qglStencilOp (GL_KEEP, GL_INCR_WRAP_EXT, GL_KEEP);
qglActiveStencilFaceEXT (GL_FRONT);
qglStencilOp (GL_KEEP, GL_DECR_WRAP_EXT, GL_KEEP);
R_DrawShadowVolume ();
qglDisable (GL_STENCIL_TEST_TWO_SIDE_EXT);
GL_Enable(GL_CULL_FACE);
}
else
{ // increment stencil if backface is behind depthbuffer
GL_CullFace(GL_BACK); // quake is backwards, this culls front faces
qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);
R_DrawShadowVolume ();
// decrement stencil if frontface is behind depthbuffer
GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);
R_DrawShadowVolume ();
}
}
else
R_DrawShadowVolume ();
GL_UnlockArrays ();
}
// end stenciling and draw stenciled volume
if (!r_shadowvolumes->value)
{
GL_CullFace(GL_FRONT);
GL_Disable(GL_STENCIL_TEST);
GL_DepthFunc(GL_LEQUAL);
GL_DepthMask(1);
qglColorMask(1,1,1,1);
// draw shadows for this model now
R_ShadowBlend (aliasShadowAlpha * currententity->alpha); // was r_shadowalpha->value
qglPopAttrib(); // restore stencil buffer
}
}
