/**
* @brief Reloads the glsl shaders
*/
void R_RestartPrograms_f (void)
{
if (r_programs->integer) {
Com_Printf("glsl restart to a version of v%s\n", Cvar_Get("r_glsl_version", nullptr, 0, nullptr)->string);
} else {
Com_Printf("glsl shutdown\n");
}
R_ShutdownPrograms();
R_InitPrograms();
R_InitFBObjects();
}
/*
* @brief Shuts down the renderer, freeing all resources belonging to it,
* including the GL context.
*/
void R_Shutdown(void) {
Cmd_RemoveAll(CMD_RENDERER);
R_ShutdownPrograms();
R_ShutdownContext();
R_ShutdownState();
Z_FreeTag(Z_TAG_RENDERER);
}
/**
* @sa R_Init
*/
void R_Shutdown (void)
{
const cmdList_t *commands;
for (commands = r_commands; commands->name; commands++)
Cmd_RemoveCommand(commands->name);
R_ShutdownThreads();
R_ShutdownModels(true);
R_ShutdownImages();
R_ShutdownPrograms();
R_FontShutdown();
R_ShutdownFBObjects();
/* shut down OS specific OpenGL stuff like contexts, etc. */
Rimp_Shutdown();
}
/**
* @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);
}
