fix mixing up of SDL and libc allocators, proper flushing of quad build buffers

apps/demos/platformer/game.c

@@ -12,7 +12,7 @@
 void game_tick(void) {
     if (ctx.initialization_needed) {
         if (!ctx.udata) {
-            ctx.udata = ccalloc(1, sizeof (State));
+            ctx.udata = calloc(1, sizeof (State));
 
             State *state = ctx.udata;
             state->ctx = &ctx;

apps/demos/platformer/player.c

@@ -203,7 +203,7 @@ static void calc_collisions_y(Player *player) {
 
 
 Player *player_create(World *world) {
-    Player *player = cmalloc(sizeof *player);
+    Player *player = malloc(sizeof *player);
 
     *player = (Player) {
         .world = world,

apps/demos/platformer/scenes/ingame.c

@@ -34,7 +34,7 @@ static void ingame_end(State *state) {
 Scene *ingame_scene(State *state) {
     (void)state;
 
-    SceneIngame *new_scene = ccalloc(1, sizeof *new_scene);
+    SceneIngame *new_scene = calloc(1, sizeof *new_scene);
     new_scene->base.tick = ingame_tick;
     new_scene->base.end = ingame_end;
 

apps/demos/platformer/scenes/title.c

@@ -5,9 +5,8 @@
 
 #include "twn_game_api.h"
 
-#include <SDL2/SDL.h>
-
 #include <stdio.h>
+#include <stdlib.h>
 
 
 static void title_tick(State *state) {
@@ -26,8 +25,9 @@ static void title_tick(State *state) {
     
     /* draw the tick count as an example of dynamic text */
     size_t text_str_len = snprintf(NULL, 0, "%llu", (unsigned long long)state->ctx->frame_number) + 1;
-    char *text_str = cmalloc(text_str_len);
+    char *text_str = malloc(text_str_len);
     snprintf(text_str, text_str_len, "%llu", (unsigned long long)state->ctx->frame_number);
+    free(text_str);
 
     const char *font = "fonts/kenney-pixel.ttf";
     float text_h = 32;
@@ -64,7 +64,7 @@ static void title_end(State *state) {
 Scene *title_scene(State *state) {
     (void)state;
 
-    SceneTitle *new_scene = ccalloc(1, sizeof *new_scene);
+    SceneTitle *new_scene = calloc(1, sizeof *new_scene);
     new_scene->base.tick = title_tick;
     new_scene->base.end = title_end;
 

apps/demos/platformer/world.c

@@ -45,7 +45,7 @@ static void drawdef_debug(struct World *world) {
 
 
 struct World *world_create(void) {
-    struct World *world = cmalloc(sizeof *world);
+    struct World *world = malloc(sizeof *world);
 
     *world = (struct World) {
         .tiles = NULL,
@@ -58,9 +58,9 @@ struct World *world_create(void) {
     /* create the tilemap */
     /* it simply stores what's in each tile as a 2d array */
     /* on its own, it's entirely unrelated to drawing or logic */
-    world->tilemap = cmalloc(sizeof *world->tilemap * world->tilemap_height);
+    world->tilemap = malloc(sizeof *world->tilemap * world->tilemap_height);
     for (size_t i = 0; i < world->tilemap_height; ++i) {
-        world->tilemap[i] = cmalloc(sizeof **world->tilemap * world->tilemap_width);
+        world->tilemap[i] = malloc(sizeof **world->tilemap * world->tilemap_width);
 
         for (size_t j = 0; j < world->tilemap_width; ++j) {
             world->tilemap[i][j] = TILE_TYPE_VOID;
@@ -81,7 +81,7 @@ struct World *world_create(void) {
     /* the tiles array contains data meant to be used by other logic */
     /* most importantly, it is used to draw the tiles */
     const size_t tile_count = world->tilemap_height * world->tilemap_width;
-    world->tiles = cmalloc(sizeof *world->tiles * tile_count);
+    world->tiles = malloc(sizeof *world->tiles * tile_count);
     update_tiles(world);
 
     return world;