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twn_textures.c: add debug hints about unportable texture dimensions

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veclav talica 2024-09-23 09:34:27 +03:00
parent 752dbaad8a
commit 66678a27cf
2 changed files with 12 additions and 0 deletions
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5
include/twn_util.h
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@ -170,4 +170,9 @@ static inline t_fvec2 fast_cossine(float a) {
}; };
} }
static inline bool is_power_of_two(int x)
{
return (x != 0) && ((x & (x - 1)) == 0);
}
#endif #endif

7
src/twn_textures.c
View File

@ -1,6 +1,7 @@
#include "twn_textures_c.h" #include "twn_textures_c.h"
#include "twn_config.h" #include "twn_config.h"
#include "twn_util.h" #include "twn_util.h"
#include "twn_engine_context_c.h"
#include <SDL2/SDL.h> #include <SDL2/SDL.h>
#include <physfs.h> #include <physfs.h>
@ -342,6 +343,12 @@ static t_texture_key textures_load(struct texture_cache *cache, const char *path
/* it's a "loner texture," it doesn't fit in an atlas so it's not in one */ /* it's a "loner texture," it doesn't fit in an atlas so it's not in one */
if (surface->w >= TEXTURE_ATLAS_SIZE || surface->h >= TEXTURE_ATLAS_SIZE) { if (surface->w >= TEXTURE_ATLAS_SIZE || surface->h >= TEXTURE_ATLAS_SIZE) {
if (ctx.game.debug) {
if (surface->w > TEXTURE_ATLAS_SIZE || surface->h > TEXTURE_ATLAS_SIZE)
log_warn("Unportable texture dimensions for %s, use 2048x2048 at max", path);
if (!is_power_of_two(surface->w) || !is_power_of_two(surface->h))
log_warn("Unportable texture dimensions for %s, should be powers of 2", path);
}
new_texture.loner_texture = create_gpu_texture(TEXTURE_FILTER_NEAREAST, true); new_texture.loner_texture = create_gpu_texture(TEXTURE_FILTER_NEAREAST, true);
upload_texture_from_surface(new_texture.loner_texture, surface); upload_texture_from_surface(new_texture.loner_texture, surface);
new_texture.srcrect = (t_frect) { .w = (float)surface->w, .h = (float)surface->h }; new_texture.srcrect = (t_frect) { .w = (float)surface->w, .h = (float)surface->h };