mirror of
https://github.com/ACreTeam/ac-decomp
synced 2026-06-28 09:13:12 -04:00
emu64 work and misc improvements
This commit is contained in:
Cuyler36
@@ -0,0 +1,296 @@
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#include "libforest/emu64/emu64.hpp"
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static aflags_c aflags;
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static u8 texture_buffer_data[TEX_BUFFER_DATA_SIZE];
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static u8 texture_buffer_bss[TEX_BUFFER_BSS_SIZE];
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static u32 texture_cache_num;
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static texture_cache_entry_t texture_cache_list[TEXTURE_CACHE_LIST_SIZE];
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/* These are set externally during emu64 initialization */
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static texture_cache_data_entry_t texture_cache_data_entry_tbl[NUM_TEXTURE_CACHE_DATA];
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static int texture_cache_data_entry_num;
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static texture_cache_funcs texture_cache_data_func = {
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&texture_cache_data_search,
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&texture_cache_data_entry,
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&texture_cache_alloc
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};
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static texture_cache_t texture_cache_data = {
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&texture_cache_data_func,
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&texture_buffer_data[0],
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&texture_buffer_data[TEX_BUFFER_DATA_SIZE],
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&texture_buffer_data[0],
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nullptr,
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nullptr,
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FALSE,
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0
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};
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/* .bss cache functions */
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void* texture_cache_bss_search(void* addr);
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int texture_cache_bss_entry(void* original, void* converted);
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static texture_cache_funcs texture_cache_bss_func = {
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&texture_cache_bss_search,
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&texture_cache_bss_entry,
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&texture_cache_alloc
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};
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static texture_cache_t texture_cache_bss = {
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&texture_cache_bss_func,
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&texture_buffer_bss[0],
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&texture_buffer_bss[TEX_BUFFER_BSS_SIZE],
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&texture_buffer_bss[0],
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nullptr,
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nullptr,
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FALSE,
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0
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};
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extern void emu64_texture_cache_data_entry_set(void* begin, void* end) {
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texture_cache_data_entry_t* entry = &texture_cache_data_entry_tbl[texture_cache_data_entry_num];
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entry->start = begin;
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entry->end = end;
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texture_cache_data_entry_num++;
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}
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static texture_cache_t* texture_cache_select(void* addr) {
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int i;
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if (aflags[5] < 1 && (addr < _f_rodata || addr > _e_data)) {
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for (i = 0; i < texture_cache_data_entry_num; i++) {
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if (addr >= texture_cache_data_entry_tbl[i].start && addr < texture_cache_data_entry_tbl[i].end) {
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return &texture_cache_data;
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}
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}
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return &texture_cache_bss;
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}
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return &texture_cache_data;
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}
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static bool texture_cache_is_overflow(texture_cache_t* cache) {
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return cache->is_overflow;
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}
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static void texture_cache_clear(texture_cache_t* cache) {
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cache->is_overflow = false;
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cache->buffer_current = cache->buffer_start;
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}
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/* @fabricated */
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MATCH_FORCESTRIP static u32 texture_cache_get_max_alloc_size(texture_cache_t* cache) {
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return cache->buffer_current - cache->buffer_start;
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}
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/* @fabricated */
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MATCH_FORCESTRIP static u32 texture_cache_get_alloc_size(texture_cache_t* cache) {
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return cache->buffer_current - cache->last_alloc_start;
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}
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/* @fabricated */
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MATCH_FORCESTRIP static u32 texture_cache_get_free_size(texture_cache_t* cache) {
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return cache->buffer_end - cache->buffer_current;
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}
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/* @fabricated */
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MATCH_FORCESTRIP static u32 texture_cache_get_heap_size(texture_cache_t* cache) {
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return cache->buffer_end - cache->buffer_start;
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}
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static void* texture_cache_alloc(texture_cache_t* cache, size_t size) {
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u32 new_pos;
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cache->last_alloc_start = cache->buffer_current;
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cache->last_alloc_end = (u8*)ALIGN_NEXT((u32)cache->buffer_current + size, 32);
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new_pos = cache->last_alloc_end - cache->buffer_start;
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if (cache->buffer_pos < new_pos) {
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cache->buffer_pos = new_pos;
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}
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if (cache->buffer_end < cache->last_alloc_end) {
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cache->is_overflow = true;
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return nullptr;
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}
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cache->buffer_current = cache->last_alloc_end;
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return cache->last_alloc_start;
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}
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static void* texture_cache_data_search(void* original_addr) {
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int i;
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for (i = 0; i < texture_cache_num; i++) {
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if (original_addr == texture_cache_list[i].original) {
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return texture_cache_list[i].converted;
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}
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}
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return nullptr;
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}
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static int texture_cache_data_entry(void* original_addr, void* converted_addr) {
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if (texture_cache_num < TEXTURE_CACHE_LIST_SIZE && original_addr != nullptr && converted_addr != nullptr) {
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texture_cache_entry_t* entry = &texture_cache_list[texture_cache_num++];
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entry->original = original_addr;
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entry->converted = converted_addr;
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return 0;
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}
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texture_cache_data.is_overflow = true;
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return -1;
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}
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static void* texture_cache_bss_search(void* original_addr) {
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return nullptr;
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}
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static int texture_cache_bss_entry(void* original_addr, void* converted_addr) {
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return -1;
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}
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static void texture_cache_list_clear() {
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texture_cache_clear(&texture_cache_data);
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texture_cache_num = 0;
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}
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extern void emu64_refresh() {
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texture_cache_list_clear();
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}
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/* Helper function to convert N64 texture format to Dolphin format */
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u16 emu64::fmtxtbl[8][4] = {
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{ GX_TF_CMPR, -1, GX_TF_RGB5A3, GX_TF_RGBA8 }, /* G_IM_FMT_RGBA */
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{ -1, -1, -1, -1 }, /* G_IM_FMT_YUV */
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{ GX_TF_C4, GX_TF_C8, 0xA, -1 }, /* G_IM_FMT_CI */
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{ -1, GX_TF_IA4, GX_TF_IA8, -1 }, /* G_IM_FMT_IA */
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{ GX_TF_I4, GX_TF_I8, GX_TF_RGB565, -1 }, /* G_IM_FMT_I */
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{ GX_TF_CMPR, GX_CTF_A8, GX_TF_RGB5A3, -1 }, /* ?? */
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{ -1, GX_TF_Z8, GX_TF_Z16, GX_TF_Z24X8 }, /* ?? */
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{ -1, -1, -1, -1 } /* ?? */
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};
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static u16 cvtN64ToDol(int n64_fmt, int n64_bpp) {
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u16 dol = emu64::fmtxtbl[n64_fmt][n64_bpp];
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if (dol != 0xFFFF) {
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return dol;
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}
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return GX_TF_I4;
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}
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MATCH_FORCESTRIP static f32 PsendoArcSinConvert(f32 arcsin) {
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f32 g = 2.0f * (arcsin - 0.5f);
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g = g * 0.4623f * g * g + g * 0.5377f;
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return 0.5f + g * 0.5f;
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}
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MATCH_FORCESTRIP static void TextureLinearConvert1(Texture* src, Texture* dst) {
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int y;
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int x;
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for (y = 0; y < dst->height; y++) {
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for (x = 0; x < dst->width; x++) {
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f32 arcsin_x = (f32)x / (f32)(dst->width - 1);
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f32 arcsin_y = (f32)y / (f32)(dst->height - 1);
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f32 sin_x = PsendoArcSinConvert(arcsin_x);
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f32 sin_y = PsendoArcSinConvert(arcsin_y);
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dst->putTexel(x, y, src->getTexel(sin_x * (src->width - 1), sin_y * (src->height - 1)));
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}
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}
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}
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MATCH_FORCESTRIP static void* TextureLinearConvert(void* img_p, unsigned int width, unsigned int height, unsigned int fmt, unsigned int bpp) {
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texture_cache_t* tex_cache = texture_cache_select(NULL);
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void* conv_img_p = tex_cache->funcs->alloc(tex_cache, 0x1000);
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Texture src(img_p, width, height, fmt, bpp);
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Texture dst(conv_img_p, width, height, fmt, bpp);
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TextureLinearConvert1(&src, &dst);
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return conv_img_p;
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}
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static GXColor black_color = { 0, 0, 0, 0 };
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static GXColor white_color = { 255, 255, 255, 255 };
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static void emu64_init2(GXRenderModeObj* render_mode) {
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Mtx m;
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__GXSetIndirectMask(0);
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GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX1, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD2, GX_TG_MTX2x4, GX_TG_TEX2, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD3, GX_TG_MTX2x4, GX_TG_TEX3, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD4, GX_TG_MTX2x4, GX_TG_TEX4, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD5, GX_TG_MTX2x4, GX_TG_TEX5, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD6, GX_TG_MTX2x4, GX_TG_TEX6, GX_IDENTITY);
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GXSetTexCoordGen(GX_TEXCOORD7, GX_TG_MTX2x4, GX_TG_TEX7, GX_IDENTITY);
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GXSetNumTexGens(1);
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GXClearVtxDesc();
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GXInvalidateVtxCache();
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GXSetLineWidth(6, GX_TO_ZERO);
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GXSetPointSize(6, GX_TO_ZERO);
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GXEnableTexOffsets(GX_TEXCOORD0, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD1, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD2, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD3, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD4, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD5, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD6, GX_FALSE, GX_FALSE);
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GXEnableTexOffsets(GX_TEXCOORD7, GX_FALSE, GX_FALSE);
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PSMTXIdentity(m);
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GXLoadPosMtxImm(m, GX_PNMTX0);
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GXLoadNrmMtxImm(m, GX_PNMTX0);
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GXSetCurrentMtx(GX_PNMTX0);
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GXLoadTexMtxImm(m, GX_IDENTITY, GX_MTX3x4);
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GXSetViewport(0.0f, 0.0f, render_mode->fbWidth, render_mode->xfbHeight, 0.0f, 1.0f);
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GXSetCoPlanar(GX_FALSE);
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GXSetCullMode(GX_CULL_BACK);
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GXSetClipMode(GX_CLIP_ENABLE);
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GXSetScissor(0, 0, render_mode->fbWidth, render_mode->efbHeight);
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GXSetScissorBoxOffset(0, 0);
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GXSetNumChans(0);
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GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_REG, GX_SRC_VTX, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE);
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GXSetChanAmbColor(GX_COLOR0A0, black_color);
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GXSetChanMatColor(GX_COLOR0A0, white_color);
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GXSetChanCtrl(GX_COLOR1A1, GX_FALSE, GX_SRC_REG, GX_SRC_VTX, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE);
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GXSetChanAmbColor(GX_COLOR1A1, black_color);
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GXSetChanMatColor(GX_COLOR1A1, white_color);
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GXInvalidateTexAll();
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GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP1, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE2, GX_TEXCOORD2, GX_TEXMAP2, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE3, GX_TEXCOORD3, GX_TEXMAP3, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE4, GX_TEXCOORD4, GX_TEXMAP4, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE5, GX_TEXCOORD5, GX_TEXMAP5, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE6, GX_TEXCOORD6, GX_TEXMAP6, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE7, GX_TEXCOORD7, GX_TEXMAP7, GX_COLOR0A0);
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GXSetTevOrder(GX_TEVSTAGE8, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE9, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE10, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE11, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE12, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE13, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE14, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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GXSetTevOrder(GX_TEVSTAGE15, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
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}
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