mirror of https://github.com/sm64pc/sm64pc.git
add texture preloading
when EXTERNAL_TEXTURES is defined, the texture hashmap in gfx_pc.c uses texture names as keys all textures are precached on startup if EXTERNAL_TEXTURES is defined and 'precache' is true in the config
This commit is contained in:
fgsfds
parent
f8139cce6d
commit
655c381d6f
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@ -66,7 +66,9 @@ unsigned int configKeyStickUp[MAX_BINDS] = { 0x0011, VK_INVALID, VK_INVALID
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unsigned int configKeyStickDown[MAX_BINDS] = { 0x001F, VK_INVALID, VK_INVALID };
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unsigned int configKeyStickLeft[MAX_BINDS] = { 0x001E, VK_INVALID, VK_INVALID };
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unsigned int configKeyStickRight[MAX_BINDS] = { 0x0020, VK_INVALID, VK_INVALID };
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#ifdef EXTERNAL_TEXTURES
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bool configPrecacheRes = false;
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#endif
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#ifdef BETTERCAMERA
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// BetterCamera settings
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unsigned int configCameraXSens = 50;
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@ -105,6 +107,9 @@ static const struct ConfigOption options[] = {
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{.name = "key_stickdown", .type = CONFIG_TYPE_BIND, .uintValue = configKeyStickDown},
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{.name = "key_stickleft", .type = CONFIG_TYPE_BIND, .uintValue = configKeyStickLeft},
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{.name = "key_stickright", .type = CONFIG_TYPE_BIND, .uintValue = configKeyStickRight},
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#ifdef EXTERNAL_TEXTURES
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{.name = "precache", .type = CONFIG_TYPE_BOOL, .boolValue = &configPrecacheRes},
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#endif
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#ifdef BETTERCAMERA
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{.name = "bettercam_enable", .type = CONFIG_TYPE_BOOL, .boolValue = &configEnableCamera},
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{.name = "bettercam_mouse_look", .type = CONFIG_TYPE_BOOL, .boolValue = &configCameraMouse},
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@ -35,6 +35,9 @@ extern unsigned int configKeyStickUp[];
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extern unsigned int configKeyStickDown[];
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extern unsigned int configKeyStickLeft[];
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extern unsigned int configKeyStickRight[];
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#ifdef EXTERNAL_TEXTURES
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extern bool configPrecacheRes;
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#endif
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#ifdef BETTERCAMERA
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extern unsigned int configCameraXSens;
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extern unsigned int configCameraYSens;
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@ -46,6 +46,17 @@
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#define MAX_LIGHTS 2
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#define MAX_VERTICES 64
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#ifdef EXTERNAL_TEXTURES
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# define MAX_CACHED_TEXTURES 4096 // for preloading purposes
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# define HASH_SHIFT 0
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#else
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# define MAX_CACHED_TEXTURES 512
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# define HASH_SHIFT 5
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#endif
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#define HASHMAP_LEN (MAX_CACHED_TEXTURES * 2)
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#define HASH_MASK (HASHMAP_LEN - 1)
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struct RGBA {
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uint8_t r, g, b, a;
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};
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@ -72,8 +83,8 @@ struct TextureHashmapNode {
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bool linear_filter;
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};
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static struct {
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struct TextureHashmapNode *hashmap[1024];
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struct TextureHashmapNode pool[512];
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struct TextureHashmapNode *hashmap[HASHMAP_LEN];
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struct TextureHashmapNode pool[MAX_CACHED_TEXTURES];
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uint32_t pool_pos;
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} gfx_texture_cache;
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@ -161,41 +172,17 @@ static size_t buf_vbo_num_tris;
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static struct GfxWindowManagerAPI *gfx_wapi;
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static struct GfxRenderingAPI *gfx_rapi;
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#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) && !defined(__APPLE__)
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// old mingw
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# include <_mingw.h>
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# define NO_CLOCK_GETTIME
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#ifdef EXTERNAL_TEXTURES
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static inline size_t string_hash(const uint8_t *str) {
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size_t h = 0;
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for (const uint8_t *p = str; *p; p++)
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h = 31 * h + *p;
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return h;
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}
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#endif
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#ifdef NO_CLOCK_GETTIME
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#if defined(_WIN32)
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#include <windows.h>
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#define CLOCK_MONOTONIC 0
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// https://stackoverflow.com/questions/5404277/porting-clock-gettime-to-windows
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struct timespec { long tv_sec; long tv_nsec; };
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int clock_gettime(int arg, struct timespec *spec) {
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__int64 wintime;
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GetSystemTimeAsFileTime((FILETIME*)&wintime);
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wintime -= 116444736000000000LL; //1jan1601 to 1jan1970
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spec->tv_sec = wintime / 10000000LL; //seconds
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spec->tv_nsec = wintime % 10000000LL*100; //nano-seconds
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return 0;
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}
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#else // _WIN32
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#error "Add a clock_gettime() impl for your platform!"
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#endif // _WIN32
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#else // NO_CLOCK_GETTIME
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#include <time.h>
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#endif // NO_CLOCK_GETTIME
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static unsigned long get_time(void) {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (unsigned long)ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
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return 0;
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}
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static void gfx_flush(void) {
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@ -287,11 +274,19 @@ static struct ColorCombiner *gfx_lookup_or_create_color_combiner(uint32_t cc_id)
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}
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static bool gfx_texture_cache_lookup(int tile, struct TextureHashmapNode **n, const uint8_t *orig_addr, uint32_t fmt, uint32_t siz) {
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#ifdef EXTERNAL_TEXTURES // hash and compare the data (i.e. the texture name) itself
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size_t hash = string_hash(orig_addr);
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#define CMPADDR(x, y) (x && !sys_strcasecmp(x, y))
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#else // hash and compare the address
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size_t hash = (uintptr_t)orig_addr;
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hash = (hash >> 5) & 0x3ff;
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#define CMPADDR(x, y) x == y
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#endif
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hash = (hash >> HASH_SHIFT) & HASH_MASK;
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struct TextureHashmapNode **node = &gfx_texture_cache.hashmap[hash];
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while (*node != NULL && *node - gfx_texture_cache.pool < gfx_texture_cache.pool_pos) {
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if ((*node)->texture_addr == orig_addr && (*node)->fmt == fmt && (*node)->siz == siz) {
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if (CMPADDR((*node)->texture_addr, orig_addr) && (*node)->fmt == fmt && (*node)->siz == siz) {
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gfx_rapi->select_texture(tile, (*node)->texture_id);
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*n = *node;
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return true;
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@ -302,7 +297,7 @@ static bool gfx_texture_cache_lookup(int tile, struct TextureHashmapNode **n, co
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// Pool is full. We just invalidate everything and start over.
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gfx_texture_cache.pool_pos = 0;
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node = &gfx_texture_cache.hashmap[hash];
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//puts("Clearing texture cache");
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// puts("Clearing texture cache");
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}
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*node = &gfx_texture_cache.pool[gfx_texture_cache.pool_pos++];
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if ((*node)->texture_addr == NULL) {
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@ -319,9 +314,11 @@ static bool gfx_texture_cache_lookup(int tile, struct TextureHashmapNode **n, co
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(*node)->siz = siz;
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*n = *node;
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return false;
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#undef CMPADDR
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}
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#ifndef EXTERNAL_TEXTURES
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static void import_texture_rgba32(int tile) {
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uint32_t width = rdp.texture_tile.line_size_bytes / 2;
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uint32_t height = (rdp.loaded_texture[tile].size_bytes / 2) / rdp.texture_tile.line_size_bytes;
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@ -493,6 +490,89 @@ static void import_texture_ci8(int tile) {
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gfx_rapi->upload_texture(rgba32_buf, width, height);
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}
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#else // EXTERNAL_TEXTURES
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// this is taken straight from n64graphics
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static bool texname_to_texformat(const char *name, u8 *fmt, u8 *siz) {
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static const struct {
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const char *name;
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const u8 format;
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const u8 size;
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} fmt_table[] = {
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{ "rgba16", G_IM_FMT_RGBA, G_IM_SIZ_16b },
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{ "rgba32", G_IM_FMT_RGBA, G_IM_SIZ_32b },
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{ "ia1", G_IM_FMT_IA, G_IM_SIZ_8b }, // uhh
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{ "ia4", G_IM_FMT_IA, G_IM_SIZ_4b },
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{ "ia8", G_IM_FMT_IA, G_IM_SIZ_8b },
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{ "ia16", G_IM_FMT_IA, G_IM_SIZ_16b },
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{ "i4", G_IM_FMT_I, G_IM_SIZ_4b },
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{ "i8", G_IM_FMT_I, G_IM_SIZ_8b },
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{ "ci8", G_IM_FMT_I, G_IM_SIZ_8b },
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{ "ci16", G_IM_FMT_I, G_IM_SIZ_16b },
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};
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char *fstr = strrchr(name, '.');
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if (!fstr) return false; // no format string?
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fstr++;
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for (unsigned i = 0; i < sizeof(fmt_table) / sizeof(fmt_table[0]); ++i) {
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if (!sys_strcasecmp(fstr, fmt_table[i].name)) {
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*fmt = fmt_table[i].format;
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*siz = fmt_table[i].size;
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return true;
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}
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}
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return false;
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}
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// calls import_texture() on every texture in the res folder
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// we can get the format and size from the texture files
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// and then cache them using gfx_texture_cache_lookup
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static bool preload_texture(const char *path) {
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// strip off the extension
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char texname[SYS_MAX_PATH];
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strncpy(texname, path, sizeof(texname));
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texname[sizeof(texname)-1] = 0;
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char *dot = strrchr(texname, '.');
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if (dot) *dot = 0;
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// get the format and size from filename
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u8 fmt, siz;
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if (!texname_to_texformat(texname, &fmt, &siz)) {
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fprintf(stderr, "unknown texture format: `%s`, skipping\n", texname);
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return true; // just skip it, might be a stray skybox or something
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}
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// strip off the data path
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const char *datapath = sys_data_path();
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const unsigned int datalen = strlen(datapath);
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const char *actualname = (!strncmp(texname, datapath, datalen)) ?
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texname + datalen + 1 : texname;
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// skip any separators
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while (*actualname == '/' || *actualname == '\\') ++actualname;
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// this will be stored in the hashtable, so make a copy
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actualname = sys_strdup(actualname);
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assert(actualname);
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struct TextureHashmapNode *n;
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if (!gfx_texture_cache_lookup(0, &n, actualname, fmt, siz)) {
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// new texture, load it
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int w, h;
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u8 *data = stbi_load(path, &w, &h, NULL, 4);
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if (!data) {
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fprintf(stderr, "could not load texture: `%s`\n", path);
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return false;
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}
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// upload it
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gfx_rapi->upload_texture(data, w, h);
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stbi_image_free(data);
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}
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return true;
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}
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#endif // EXTERNAL_TEXTURES
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static void import_texture(int tile) {
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@ -512,7 +592,7 @@ static void import_texture(int tile) {
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snprintf(fpath, sizeof(fpath), "%s/%s.png", sys_data_path(), texname);
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u8 *data = stbi_load(fpath, &w, &h, NULL, 4);
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if (!data) {
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fprintf(stderr, "texture not found: `%s`\n", fpath);
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fprintf(stderr, "could not load texture: `%s`\n", fpath);
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abort();
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}
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gfx_rapi->upload_texture(data, w, h);
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@ -1663,6 +1743,13 @@ void gfx_init(struct GfxWindowManagerAPI *wapi, struct GfxRenderingAPI *rapi) {
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for (size_t i = 0; i < sizeof(precomp_shaders) / sizeof(uint32_t); i++) {
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gfx_lookup_or_create_shader_program(precomp_shaders[i]);
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}
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#ifdef EXTERNAL_TEXTURES
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// preload all textures if needed
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if (configPrecacheRes) {
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printf("Precaching textures from `%s`\n", sys_data_path());
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sys_dir_walk(sys_data_path(), preload_texture, true);
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}
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#endif
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}
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void gfx_start_frame(void) {
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@ -5,15 +5,85 @@
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <ctype.h>
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#ifdef _WIN32
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#include <direct.h>
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#endif
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#include "cliopts.h"
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static inline bool dir_exists(const char *path) {
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/* these are not available on some platforms, so might as well */
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char *sys_strlwr(char *src) {
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for (unsigned char *p = (unsigned char *)src; *p; p++)
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*p = tolower(*p);
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return src;
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}
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char *sys_strdup(const char *src) {
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const unsigned len = strlen(src) + 1;
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char *newstr = malloc(len);
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if (newstr) memcpy(newstr, src, len);
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return newstr;
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}
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int sys_strcasecmp(const char *s1, const char *s2) {
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const unsigned char *p1 = (const unsigned char *) s1;
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const unsigned char *p2 = (const unsigned char *) s2;
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int result;
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if (p1 == p2)
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return 0;
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while ((result = tolower(*p1) - tolower(*p2++)) == 0)
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if (*p1++ == '\0')
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break;
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return result;
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}
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/* file system stuff */
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bool sys_file_exists(const char *name) {
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struct stat st;
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return (stat(path, &st) == 0 && S_ISDIR(st.st_mode));
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return (stat(name, &st) == 0 && S_ISREG(st.st_mode));
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}
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bool sys_dir_exists(const char *name) {
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struct stat st;
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return (stat(name, &st) == 0 && S_ISDIR(st.st_mode));
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}
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bool sys_dir_walk(const char *base, walk_fn_t walk, const bool recur) {
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char fullpath[SYS_MAX_PATH];
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DIR *dir;
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struct dirent *ent;
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if (!(dir = opendir(base))) {
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fprintf(stderr, "sys_dir_walk(): could not open `%s`\n", base);
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return false;
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}
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bool ret = true;
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while ((ent = readdir(dir)) != NULL) {
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if (ent->d_name[0] == 0 || ent->d_name[0] == '.') continue; // skip ./.. and hidden files
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snprintf(fullpath, sizeof(fullpath), "%s/%s", base, ent->d_name);
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if (sys_dir_exists(fullpath)) {
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if (recur) {
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if (!sys_dir_walk(fullpath, walk, recur)) {
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ret = false;
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break;
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}
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}
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} else {
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if (!walk(fullpath)) {
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ret = false;
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break;
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}
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}
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}
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closedir(dir);
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return ret;
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}
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bool sys_mkdir(const char *name) {
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@ -40,17 +110,17 @@ const char *sys_data_path(void) {
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snprintf(path, sizeof(path), "%s%s", sys_exe_path(), gCLIOpts.DataPath + 1);
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else
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snprintf(path, sizeof(path), "%s", gCLIOpts.DataPath);
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if (dir_exists(path)) return path;
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if (sys_dir_exists(path)) return path;
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printf("Warning: Specified data path ('%s') doesn't exist\n", path);
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}
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// then the executable directory
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snprintf(path, sizeof(path), "%s/" DATADIR, sys_exe_path());
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if (dir_exists(path)) return path;
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if (sys_dir_exists(path)) return path;
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// then the save path
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snprintf(path, sizeof(path), "%s/" DATADIR, sys_save_path());
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if (dir_exists(path)) return path;
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if (sys_dir_exists(path)) return path;
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#if defined(__linux__) || defined(__unix__)
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// on Linux/BSD try some common paths for read-only data
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@ -60,7 +130,7 @@ const char *sys_data_path(void) {
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"/opt/sm64pc/" DATADIR,
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};
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for (unsigned i = 0; i < sizeof(try) / sizeof(try[0]); ++i) {
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if (dir_exists(try[i])) {
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if (sys_dir_exists(try[i])) {
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strcpy(path, try[i]);
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return path;
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}
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@ -85,7 +155,7 @@ const char *sys_save_path(void) {
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snprintf(path, sizeof(path), "%s%s", sys_exe_path(), gCLIOpts.SavePath + 1);
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else
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snprintf(path, sizeof(path), "%s", gCLIOpts.SavePath);
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if (!dir_exists(path) && !sys_mkdir(path)) {
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if (!sys_dir_exists(path) && !sys_mkdir(path)) {
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printf("Warning: Specified save path ('%s') doesn't exist and can't be created\n", path);
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path[0] = 0; // doesn't exist and no write access
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}
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@ -101,7 +171,7 @@ const char *sys_save_path(void) {
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SDL_free(sdlpath);
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if (path[len-1] == '/' || path[len-1] == '\\')
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path[len-1] = 0; // strip the trailing separator
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if (!dir_exists(path) && !sys_mkdir(path))
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if (!sys_dir_exists(path) && !sys_mkdir(path))
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path[0] = 0;
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}
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}
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@ -2,13 +2,31 @@
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#define _SM64_PLATFORM_H_
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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/* Platform-specific functions and whatnot */
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#define DATADIR "res"
|
||||
#define SYS_MAX_PATH 1024 // FIXME: define this on different platforms
|
||||
|
||||
// crossplatform impls of misc stuff
|
||||
char *sys_strdup(const char *src);
|
||||
char *sys_strlwr(char *src);
|
||||
int sys_strcasecmp(const char *s1, const char *s2);
|
||||
|
||||
// filesystem stuff
|
||||
bool sys_mkdir(const char *name); // creates with 0777 by default
|
||||
bool sys_file_exists(const char *name);
|
||||
bool sys_dir_exists(const char *name);
|
||||
|
||||
// receives the full path
|
||||
// should return `true` if traversal should continue
|
||||
typedef bool (*walk_fn_t)(const char *);
|
||||
// returns `true` if the directory was successfully opened and walk() didn't ever return false
|
||||
bool sys_dir_walk(const char *base, walk_fn_t walk, const bool recur);
|
||||
|
||||
// path stuff
|
||||
const char *sys_data_path(void);
|
||||
const char *sys_save_path(void);
|
||||
const char *sys_exe_path(void);
|
||||
|
|
|
|||
Loading…
Reference in New Issue