/*
* R_LoadBspSurfaces
*/
static void R_LoadBspSurfaces(const d_bsp_lump_t *l) {
const d_bsp_face_t *in;
r_bsp_surface_t *out;
int i, count, surf_num;
int plane_num, side;
int ti;
in = (const void *) (mod_base + l->file_ofs);
if (l->file_len % sizeof(*in)) {
Com_Error(ERR_DROP, "R_LoadBspSurfaces: Funny lump size in %s.",
r_load_model->name);
}
count = l->file_len / sizeof(*in);
out = R_HunkAlloc(count * sizeof(*out));
r_load_model->surfaces = out;
r_load_model->num_surfaces = count;
R_BeginBuildingLightmaps();
for (surf_num = 0; surf_num < count; surf_num++, in++, out++) {
out->first_edge = LittleLong(in->first_edge);
out->num_edges = LittleShort(in->num_edges);
// resolve plane
plane_num = LittleShort(in->plane_num);
out->plane = r_load_model->planes + plane_num;
// and sidedness
side = LittleShort(in->side);
if (side) {
out->flags |= R_SURF_SIDE_BACK;
VectorNegate(out->plane->normal, out->normal);
} else
VectorCopy(out->plane->normal, out->normal);
// then texinfo
ti = LittleShort(in->texinfo);
if (ti < 0 || ti >= r_load_model->num_texinfo) {
Com_Error(ERR_DROP, "R_LoadBspSurfaces: Bad texinfo number: %d.",
ti);
}
out->texinfo = r_load_model->texinfo + ti;
if (!(out->texinfo->flags & (SURF_WARP | SURF_SKY)))
out->flags |= R_SURF_LIGHTMAP;
// and size, texcoords, etc
R_SetupBspSurface(out);
// lastly lighting info
i = LittleLong(in->light_ofs);
if (i != -1)
out->samples = r_load_model->lightmap_data + i;
else
out->samples = NULL;
// create lightmaps
R_CreateSurfaceLightmap(out);
// and flare
R_CreateSurfaceFlare(out);
}
R_EndBuildingLightmaps();
}
static void R_ModEndLoading (const char *mapName)
{
R_EndBuildingLightmaps();
R_LoadMaterials(mapName);
R_LoadSurfacesArrays();
}
/**
* @brief Re-initializes OpenGL state machine, all textures and renderer variables, this needed when application is put to background on Android.
*/
void R_ReinitOpenglContext (void)
{
/* De-allocate old GL state, these functinos will call glDeleteTexture(), so they should go before everything else */
R_FontCleanCache();
R_ShutdownFBObjects();
R_ShutdownPrograms();
R_BeginBuildingLightmaps(); /* This function will also call glDeleteTexture() */
/* Re-initialize GL state */
R_SetDefaultState();
R_InitPrograms();
/* Re-upload all textures */
R_InitMiscTexture();
R_ReloadImages();
/* Re-upload other GL stuff */
R_InitFBObjects();
R_UpdateDefaultMaterial("", "", "", NULL);
/* Re-upload the battlescape terrain geometry */
if (!qglBindBuffer)
return;
for (int tile = 0; tile < r_numMapTiles; tile++) {
model_t *mod = r_mapTiles[tile];
int vertind = 0, coordind = 0, tangind = 0;
mBspSurface_t *surf = mod->bsp.surfaces;
for (int i = 0; i < mod->bsp.numsurfaces; i++, surf++) {
vertind += 3 * surf->numedges;
coordind += 2 * surf->numedges;
tangind += 4 * surf->numedges;
}
qglGenBuffers(1, &mod->bsp.vertex_buffer);
qglBindBuffer(GL_ARRAY_BUFFER, mod->bsp.vertex_buffer);
qglBufferData(GL_ARRAY_BUFFER, vertind * sizeof(GLfloat), mod->bsp.verts, GL_STATIC_DRAW);
qglGenBuffers(1, &mod->bsp.texcoord_buffer);
qglBindBuffer(GL_ARRAY_BUFFER, mod->bsp.texcoord_buffer);
qglBufferData(GL_ARRAY_BUFFER, coordind * sizeof(GLfloat), mod->bsp.texcoords, GL_STATIC_DRAW);
qglGenBuffers(1, &mod->bsp.lmtexcoord_buffer);
qglBindBuffer(GL_ARRAY_BUFFER, mod->bsp.lmtexcoord_buffer);
qglBufferData(GL_ARRAY_BUFFER, coordind * sizeof(GLfloat), mod->bsp.lmtexcoords, GL_STATIC_DRAW);
qglGenBuffers(1, &mod->bsp.normal_buffer);
qglBindBuffer(GL_ARRAY_BUFFER, mod->bsp.normal_buffer);
qglBufferData(GL_ARRAY_BUFFER, vertind * sizeof(GLfloat), mod->bsp.normals, GL_STATIC_DRAW);
qglGenBuffers(1, &mod->bsp.tangent_buffer);
qglBindBuffer(GL_ARRAY_BUFFER, mod->bsp.tangent_buffer);
qglBufferData(GL_ARRAY_BUFFER, tangind * sizeof(GLfloat), mod->bsp.tangents, GL_STATIC_DRAW);
qglGenBuffers(1, &mod->bsp.index_buffer);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mod->bsp.index_buffer);
qglBufferData(GL_ELEMENT_ARRAY_BUFFER, mod->bsp.numIndexes * sizeof(GLushort), mod->bsp.indexes, GL_STATIC_DRAW);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
for (int i = 0; i < mod->bsp.numsurfaces; i++)
R_CreateSurfaceLightmap(&mod->bsp.surfaces[i]);
}
R_EndBuildingLightmaps();
qglBindBuffer(GL_ARRAY_BUFFER, 0);
}