void Texture::Load(const u8 *file ) { header = (Texture::Header *) file; if (header->magic != MAGIC) return; // bad header u32 texture_count = header->num_textures; // only support a single texture if (texture_count > 1) { // Never saw it happen texture_count = 1; gprintf("texture count > 1\n"); } // read textures const TPL_Texture *tpl_list = (const TPL_Texture *) (file + header->header_size); for(u32 i = 0; i < texture_count; i++) { // seek to texture header const TPL_Texture_Header *texture = (const TPL_Texture_Header *) (file + tpl_list[i].texture_offset); u8 mipmap = 0; u8 bias_clamp = 0; if(texture->max_lod > 0) mipmap = GX_TRUE; if(texture->lod_bias > 0.0f) bias_clamp = GX_ENABLE; // texture data u8 *texture_data = (u8 *) (file + texture->offset); // seek to/read palette header if (tpl_list[i].palette_offset != 0) { palette = (TPL_Palette_Header *) (file + tpl_list[i].palette_offset); // load the texture GX_InitTexObjCI(&texobj, texture_data, texture->width, texture->height, texture->format, texture->wrap_s, texture->wrap_t, mipmap, 0); } else { // load the texture GX_InitTexObj(&texobj, texture_data, texture->width, texture->height, texture->format, texture->wrap_s, texture->wrap_t, mipmap); } // filter mode if(mipmap) { GX_InitTexObjLOD(&texobj, texture->min, texture->mag, texture->min_lod, texture->max_lod, texture->lod_bias, bias_clamp, bias_clamp, texture->edge_lod); } } loaded = true; }
static void init_texture(unsigned width, unsigned height) { GX_InitTexObj(&g_tex.obj, g_tex.data, width, height, GX_TF_RGB5A3, GX_CLAMP, GX_CLAMP, GX_FALSE); GX_InitTexObjLOD(&g_tex.obj, g_filter, g_filter, 0, 0, 0, GX_TRUE, GX_FALSE, GX_ANISO_1); GX_LoadTexObj(&g_tex.obj, GX_TEXMAP0); GX_InvalidateTexAll(); }
// nyanise the system void nyan() { // subsystem VIDEO_Init(); WPAD_Init(); ASND_Init(); MP3Player_Init(); // video setup wichFb = 0; rmode = VIDEO_GetPreferredMode(NULL); xfb[0] = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode)); xfb[1] = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode)); VIDEO_Configure(rmode); VIDEO_SetNextFramebuffer(xfb[wichFb]); VIDEO_Flush(); VIDEO_WaitVSync(); if(rmode->viTVMode&VI_NON_INTERLACE) VIDEO_WaitVSync(); wichFb ^= 1; // setup the fifo and then init gx gp_fifo = memalign(32, DEFAULT_FIFO_SIZE); memset(gp_fifo, 0, DEFAULT_FIFO_SIZE); GX_Init(gp_fifo, DEFAULT_FIFO_SIZE); // other gx setup GX_SetViewport(0, 0, rmode->fbWidth, rmode->efbHeight, 0, 1); yscale = GX_GetYScaleFactor(rmode->efbHeight, rmode->xfbHeight); xfbHeight = GX_SetDispCopyYScale(yscale); GX_SetScissor(0, 0, rmode->fbWidth, rmode->efbHeight); GX_SetDispCopySrc(0, 0, rmode->fbWidth, rmode->efbHeight); GX_SetDispCopyDst(rmode->fbWidth, xfbHeight); GX_SetCopyFilter(rmode->aa, rmode->sample_pattern, GX_TRUE, rmode->vfilter); GX_SetFieldMode(rmode->field_rendering, ((rmode->viHeight==2*rmode->xfbHeight) ? GX_ENABLE : GX_DISABLE)); if (rmode->aa) GX_SetPixelFmt(GX_PF_RGB565_Z16, GX_ZC_LINEAR); else GX_SetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR); GX_SetCullMode(GX_CULL_NONE); GX_CopyDisp(xfb[wichFb], GX_TRUE); GX_SetDispCopyGamma(GX_GM_1_0); GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE); GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR); GX_SetAlphaUpdate(GX_TRUE); GX_SetColorUpdate(GX_TRUE); GX_SetCopyClear(background, 0x00ffffff); // empty the vertex descriptor GX_InvVtxCache(); GX_InvalidateTexAll(); GX_ClearVtxDesc(); GX_SetVtxDesc(GX_VA_POS, GX_DIRECT); GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT); GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_F32, 0); GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0); // tev is like shadow for me (i don't really understand these Chans, and TevOps-nyan-thing things) GX_SetNumChans(1); GX_SetNumTexGens(1); GX_SetTevOp(GX_TEVSTAGE0, GX_REPLACE); GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0); GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY); GX_InvalidateTexAll(); // Load the spriteSheet TPLFile spriteTPL; TPL_OpenTPLFromMemory(&spriteTPL, (void *)textures_tpl, textures_tpl_size); TPL_GetTexture(&spriteTPL, spritesheet, &spriteSheetTexture); // no filtering plz GX_InitTexObjLOD(&spriteSheetTexture, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1); GX_LoadTexObj(&spriteSheetTexture, GX_TEXMAP0); // Load texture in slot 0 into gx // Setup the view GX_SetViewport(0, 0, rmode->fbWidth, rmode->efbHeight, 0, 1); guOrtho(perspective, 0, 479, 0, 639, 0, 300); GX_LoadProjectionMtx(perspective, GX_ORTHOGRAPHIC); startTime = ticks_to_millisecs(gettime()); bkgTimeCounter = startTime; nyanTimeCounter = startTime; currentBkgStep = 0; currentNyanStep = 0; }