/**************************************************************************** * Snes9x 1.51 Nintendo Wii/Gamecube Port * * softdev July 2006 * crunchy2 May 2007 * Michniewski 2008 * Tantric 2008-2009 * * video.cpp * * Video routines ***************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include "snes9x.h" #include "memmap.h" #include "aram.h" #include "snes9xGX.h" #include "menu.h" #include "filter.h" #include "filelist.h" #include "audio.h" #include "input.h" /*** Snes9x GFX Buffer ***/ #define SNES9XGFX_SIZE EXT_PITCH*EXT_HEIGHT #define FILTERMEM_SIZE 512*MAX_SNES_HEIGHT*4 static unsigned char * snes9xgfx = NULL; // changed. unsigned char * filtermem = NULL; // only want ((512*2) X (239*2)) /*** 2D Video ***/ static unsigned int *xfb[2] = { NULL, NULL }; // Double buffered static int whichfb = 0; // Switch static GXRModeObj *vmode; // Menu video mode int screenheight; int screenwidth; /*** GX ***/ #define TEX_WIDTH 512 #define TEX_HEIGHT 512 #define TEXTUREMEM_SIZE TEX_WIDTH*(TEX_HEIGHT+8)*2 static unsigned char texturemem[TEXTUREMEM_SIZE] ATTRIBUTE_ALIGN (32); #define DEFAULT_FIFO_SIZE 256 * 1024 static unsigned int copynow = GX_FALSE; static unsigned char gp_fifo[DEFAULT_FIFO_SIZE] ATTRIBUTE_ALIGN (32); static GXTexObj texobj; static Mtx view; static Mtx GXmodelView2D; static int vwidth, vheight, oldvwidth, oldvheight; u8 * gameScreenTex = NULL; // a GX texture screen capture of the game u8 * gameScreenTex2 = NULL; // a GX texture screen capture of the game (copy) u32 FrameTimer = 0; u8 vmode_60hz = 0; bool progressive = 0; #define HASPECT 320 #define VASPECT 240 /* New texture based scaler */ typedef struct tagcamera { Vector pos; Vector up; Vector view; } camera; /*** Square Matrix This structure controls the size of the image on the screen. Think of the output as a -80 x 80 by -60 x 60 graph. ***/ s16 square[] ATTRIBUTE_ALIGN (32) = { /* * X, Y, Z * Values set are for roughly 4:3 aspect */ -HASPECT, VASPECT, 0, // 0 HASPECT, VASPECT, 0, // 1 HASPECT, -VASPECT, 0, // 2 -HASPECT, -VASPECT, 0 // 3 }; static camera cam = { {0.0F, 0.0F, 0.0F}, {0.0F, 0.5F, 0.0F}, {0.0F, 0.0F, -0.5F} }; /*** *** Custom Video modes (used to emulate original console video modes) ***/ /** Original SNES PAL Resolutions: **/ /* 239 lines progressive (PAL 50Hz) */ static GXRModeObj TV_239p = { VI_TVMODE_PAL_DS, // viDisplayMode 512, // fbWidth 239, // efbHeight 239, // xfbHeight (VI_MAX_WIDTH_PAL - 640)/2, // viXOrigin (VI_MAX_HEIGHT_PAL/2 - 478/2)/2, // viYOrigin 640, // viWidth 478, // viHeight VI_XFBMODE_SF, // xFBmode GX_FALSE, // field_rendering GX_FALSE, // aa // sample points arranged in increasing Y order { {6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each {6,6},{6,6},{6,6}, // pix 1 {6,6},{6,6},{6,6}, // pix 2 {6,6},{6,6},{6,6} // pix 3 }, // vertical filter[7], 1/64 units, 6 bits each { 0, // line n-1 0, // line n-1 21, // line n 22, // line n 21, // line n 0, // line n+1 0 // line n+1 } }; /* 478 lines interlaced (PAL 50Hz, Deflicker) */ static GXRModeObj TV_478i = { VI_TVMODE_PAL_INT, // viDisplayMode 512, // fbWidth 478, // efbHeight 478, // xfbHeight (VI_MAX_WIDTH_PAL - 640)/2, // viXOrigin (VI_MAX_HEIGHT_PAL - 478)/2, // viYOrigin 640, // viWidth 478, // viHeight VI_XFBMODE_DF, // xFBmode GX_FALSE, // field_rendering GX_FALSE, // aa // sample points arranged in increasing Y order { {6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each {6,6},{6,6},{6,6}, // pix 1 {6,6},{6,6},{6,6}, // pix 2 {6,6},{6,6},{6,6} // pix 3 }, // vertical filter[7], 1/64 units, 6 bits each { 8, // line n-1 8, // line n-1 10, // line n 12, // line n 10, // line n 8, // line n+1 8 // line n+1 } }; /** Original SNES NTSC Resolutions: **/ /* 224 lines progressive (NTSC or PAL 60Hz) */ static GXRModeObj TV_224p = { VI_TVMODE_EURGB60_DS, // viDisplayMode 512, // fbWidth 224, // efbHeight 224, // xfbHeight (VI_MAX_WIDTH_NTSC - 640)/2, // viXOrigin (VI_MAX_HEIGHT_NTSC/2 - 448/2)/2, // viYOrigin 640, // viWidth 448, // viHeight VI_XFBMODE_SF, // xFBmode GX_FALSE, // field_rendering GX_FALSE, // aa // sample points arranged in increasing Y order { {6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each {6,6},{6,6},{6,6}, // pix 1 {6,6},{6,6},{6,6}, // pix 2 {6,6},{6,6},{6,6} // pix 3 }, // vertical filter[7], 1/64 units, 6 bits each { 0, // line n-1 0, // line n-1 21, // line n 22, // line n 21, // line n 0, // line n+1 0 // line n+1 } }; /* 448 lines interlaced (NTSC or PAL 60Hz, Deflicker) */ static GXRModeObj TV_448i = { VI_TVMODE_EURGB60_INT, // viDisplayMode 512, // fbWidth 448, // efbHeight 448, // xfbHeight (VI_MAX_WIDTH_NTSC - 640)/2, // viXOrigin (VI_MAX_HEIGHT_NTSC - 448)/2, // viYOrigin 640, // viWidth 448, // viHeight VI_XFBMODE_DF, // xFBmode GX_FALSE, // field_rendering GX_FALSE, // aa // sample points arranged in increasing Y order { {6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each {6,6},{6,6},{6,6}, // pix 1 {6,6},{6,6},{6,6}, // pix 2 {6,6},{6,6},{6,6} // pix 3 }, // vertical filter[7], 1/64 units, 6 bits each { 8, // line n-1 8, // line n-1 10, // line n 12, // line n 10, // line n 8, // line n+1 8 // line n+1 } }; static GXRModeObj TV_Custom; /* TV Modes table */ static GXRModeObj *tvmodes[4] = { &TV_239p, &TV_478i, /* Snes PAL video modes */ &TV_224p, &TV_448i, /* Snes NTSC video modes */ }; /**************************************************************************** * VideoThreading ***************************************************************************/ #define TSTACK 16384 static lwpq_t videoblankqueue; static lwp_t vbthread = LWP_THREAD_NULL; static unsigned char vbstack[TSTACK]; /**************************************************************************** * vbgetback * * This callback enables the emulator to keep running while waiting for a * vertical blank. * * Putting LWP to good use :) ***************************************************************************/ static void * vbgetback (void *arg) { while (1) { VIDEO_WaitVSync (); /**< Wait for video vertical blank */ LWP_SuspendThread (vbthread); } return NULL; } /**************************************************************************** * InitVideoThread * * libOGC provides a nice wrapper for LWP access. * This function sets up a new local queue and attaches the thread to it. ***************************************************************************/ void InitVideoThread () { /*** Initialise a new queue ***/ LWP_InitQueue (&videoblankqueue); /*** Create the thread on this queue ***/ LWP_CreateThread (&vbthread, vbgetback, NULL, vbstack, TSTACK, 100); } /**************************************************************************** * copy_to_xfb * * Stock code to copy the GX buffer to the current display mode. * Also increments the frameticker, as it's called for each vb. ***************************************************************************/ static void copy_to_xfb (u32 arg) { if (copynow == GX_TRUE) { GX_CopyDisp (xfb[whichfb], GX_TRUE); GX_Flush (); copynow = GX_FALSE; } FrameTimer++; } /**************************************************************************** * Scaler Support Functions ***************************************************************************/ static void draw_init () { GX_ClearVtxDesc (); GX_SetVtxDesc (GX_VA_POS, GX_INDEX8); GX_SetVtxDesc (GX_VA_CLR0, GX_INDEX8); GX_SetVtxDesc (GX_VA_TEX0, GX_DIRECT); GX_SetVtxAttrFmt (GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_S16, 0); GX_SetVtxAttrFmt (GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0); GX_SetVtxAttrFmt (GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0); GX_SetArray (GX_VA_POS, square, 3 * sizeof (s16)); GX_SetNumTexGens (1); GX_SetNumChans (0); GX_SetTexCoordGen (GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY); GX_SetTevOp (GX_TEVSTAGE0, GX_REPLACE); GX_SetTevOrder (GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLORNULL); memset (&view, 0, sizeof (Mtx)); guLookAt(view, &cam.pos, &cam.up, &cam.view); GX_LoadPosMtxImm (view, GX_PNMTX0); GX_InvVtxCache (); // update vertex cache } static void draw_vert (u8 pos, u8 c, f32 s, f32 t) { GX_Position1x8 (pos); GX_Color1x8 (c); GX_TexCoord2f32 (s, t); } static void draw_square (Mtx v) { Mtx m; // model matrix. Mtx mv; // modelview matrix. guMtxIdentity (m); guMtxTransApply (m, m, 0, 0, -100); guMtxConcat (v, m, mv); GX_LoadPosMtxImm (mv, GX_PNMTX0); GX_Begin (GX_QUADS, GX_VTXFMT0, 4); draw_vert (0, 0, 0.0, 0.0); draw_vert (1, 0, 1.0, 0.0); draw_vert (2, 0, 1.0, 1.0); draw_vert (3, 0, 0.0, 1.0); GX_End (); } /**************************************************************************** * StartGX * * Initialises GX and sets it up for use ***************************************************************************/ static void StartGX () { GXColor background = { 0, 0, 0, 0xff }; /*** Clear out FIFO area ***/ memset (&gp_fifo, 0, DEFAULT_FIFO_SIZE); /*** Initialise GX ***/ GX_Init (&gp_fifo, DEFAULT_FIFO_SIZE); GX_SetCopyClear (background, 0x00ffffff); GX_SetDispCopyGamma (GX_GM_1_0); GX_SetCullMode (GX_CULL_NONE); vwidth = 100; vheight = 100; } /**************************************************************************** * StopGX * * Stops GX (when exiting) ***************************************************************************/ void StopGX() { GX_AbortFrame(); GX_Flush(); VIDEO_SetBlack(TRUE); VIDEO_Flush(); } /**************************************************************************** * UpdatePadsCB * * called by postRetraceCallback in InitGCVideo - scans gcpad and wpad ***************************************************************************/ static void UpdatePadsCB () { #ifdef HW_RVL WPAD_ScanPads(); #endif PAD_ScanPads(); for(int i=3; i >= 0; i--) { #ifdef HW_RVL memcpy(&userInput[i].wpad, WPAD_Data(i), sizeof(WPADData)); #endif userInput[i].chan = i; userInput[i].pad.btns_d = PAD_ButtonsDown(i); userInput[i].pad.btns_u = PAD_ButtonsUp(i); userInput[i].pad.btns_h = PAD_ButtonsHeld(i); userInput[i].pad.stickX = PAD_StickX(i); userInput[i].pad.stickY = PAD_StickY(i); userInput[i].pad.substickX = PAD_SubStickX(i); userInput[i].pad.substickY = PAD_SubStickY(i); userInput[i].pad.triggerL = PAD_TriggerL(i); userInput[i].pad.triggerR = PAD_TriggerR(i); } } /**************************************************************************** * MakeTexture * * - modified for a buffer with an offset (border) ****************************************************************************/ static void MakeTexture (const void *src, void *dst, s32 width, s32 height) { register u32 tmp0 = 0, tmp1 = 0, tmp2 = 0, tmp3 = 0; __asm__ __volatile__ (" srwi %6,%6,2\n" " srwi %7,%7,2\n" " subi %3,%4,4\n" " mr %4,%3\n" " subi %4,%4,4\n" "2: mtctr %6\n" " mr %0,%5\n" // "1: lwz %1,0(%5)\n" //1 " stwu %1,8(%4)\n" " lwz %2,4(%5)\n" //1 " stwu %2,8(%3)\n" " lwz %1,1032(%5)\n" //2 " stwu %1,8(%4)\n" " lwz %2,1036(%5)\n" //2 " stwu %2,8(%3)\n" " lwz %1,2064(%5)\n" //3 " stwu %1,8(%4)\n" " lwz %2,2068(%5)\n" //3 " stwu %2,8(%3)\n" " lwz %1,3096(%5)\n" //4 " stwu %1,8(%4)\n" " lwz %2,3100(%5)\n" //4 " stwu %2,8(%3)\n" " addi %5,%5,8\n" " bdnz 1b\n" " addi %5,%0,4128\n" //5 " subic. %7,%7,1\n" " bne 2b" // regs 0-7 :"=&r" (tmp0), "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "+r" (dst):"r" (src), "r" (width), "r" (height)); } /**************************************************************************** * InitGCVideo * * This function MUST be called at startup. * - also sets up menu video mode ***************************************************************************/ void InitGCVideo () { // get default video mode vmode = VIDEO_GetPreferredMode(NULL); switch (vmode->viTVMode >> 2) { case VI_PAL: // 576 lines (PAL 50Hz) // display should be centered vertically (borders) vmode = &TVPal574IntDfScale; vmode->xfbHeight = 480; vmode->viYOrigin = (VI_MAX_HEIGHT_PAL - 480)/2; vmode->viHeight = 480; vmode_60hz = 0; // Original Video modes (forced to PAL 50hz) // set video signal mode TV_224p.viTVMode = VI_TVMODE_PAL_DS; TV_448i.viTVMode = VI_TVMODE_PAL_INT; // set VI position TV_224p.viYOrigin = (VI_MAX_HEIGHT_PAL/2 - 448/2)/2; TV_448i.viYOrigin = (VI_MAX_HEIGHT_PAL - 448)/2; break; case VI_NTSC: // 480 lines (NTSC 60hz) vmode_60hz = 1; // Original Video modes (forced to NTSC 60hz) // set video signal mode TV_239p.viTVMode = VI_TVMODE_NTSC_DS; TV_478i.viTVMode = VI_TVMODE_NTSC_INT; TV_224p.viTVMode = VI_TVMODE_NTSC_DS; TV_448i.viTVMode = VI_TVMODE_NTSC_INT; // set VI position TV_239p.viYOrigin = (VI_MAX_HEIGHT_NTSC/2 - 478/2)/2; TV_478i.viYOrigin = (VI_MAX_HEIGHT_NTSC - 478)/2; TV_224p.viYOrigin = (VI_MAX_HEIGHT_NTSC/2 - 448/2)/2; TV_448i.viYOrigin = (VI_MAX_HEIGHT_NTSC - 448)/2; break; default: // 480 lines (PAL 60Hz) vmode_60hz = 1; // Original Video modes (forced to PAL 60hz) // set video signal mode TV_239p.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_NON_INTERLACE); TV_478i.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_INTERLACE); TV_224p.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_NON_INTERLACE); TV_448i.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_INTERLACE); // set VI position TV_239p.viYOrigin = (VI_MAX_HEIGHT_NTSC/2 - 478/2)/2; TV_478i.viYOrigin = (VI_MAX_HEIGHT_NTSC - 478)/2; TV_224p.viYOrigin = (VI_MAX_HEIGHT_NTSC/2 - 448/2)/2; TV_448i.viYOrigin = (VI_MAX_HEIGHT_NTSC - 448)/2; break; } #ifdef HW_DOL /* we have component cables, but the preferred mode is interlaced * why don't we switch into progressive? * on the Wii, the user can do this themselves on their Wii Settings */ if(VIDEO_HaveComponentCable()) vmode = &TVNtsc480Prog; #endif // check for progressive scan if (vmode->viTVMode == VI_TVMODE_NTSC_PROG) progressive = true; #ifdef HW_RVL // widescreen fix if(CONF_GetAspectRatio() == CONF_ASPECT_16_9) { vmode->viWidth = 688; vmode->viXOrigin = (VI_MAX_WIDTH_PAL - 688) / 2; } #endif VIDEO_Configure (vmode); screenheight = vmode->xfbHeight; screenwidth = vmode->fbWidth; // Allocate the video buffers xfb[0] = (u32 *) MEM_K0_TO_K1 (SYS_AllocateFramebuffer (vmode)); xfb[1] = (u32 *) MEM_K0_TO_K1 (SYS_AllocateFramebuffer (vmode)); // A console is always useful while debugging console_init (xfb[0], 20, 64, vmode->fbWidth, vmode->xfbHeight, vmode->fbWidth * 2); // Clear framebuffers etc. VIDEO_ClearFrameBuffer (vmode, xfb[0], COLOR_BLACK); VIDEO_ClearFrameBuffer (vmode, xfb[1], COLOR_BLACK); VIDEO_SetNextFramebuffer (xfb[0]); // video callbacks VIDEO_SetPostRetraceCallback ((VIRetraceCallback)UpdatePadsCB); VIDEO_SetPreRetraceCallback ((VIRetraceCallback)copy_to_xfb); VIDEO_SetBlack (FALSE); VIDEO_Flush (); VIDEO_WaitVSync (); if (vmode->viTVMode & VI_NON_INTERLACE) VIDEO_WaitVSync (); copynow = GX_FALSE; StartGX (); InitLUTs(); // init LUTs for hq2x InitVideoThread (); // Finally, the video is up and ready for use :) } /**************************************************************************** * ResetVideo_Emu * * Reset the video/rendering mode for the emulator rendering ****************************************************************************/ void ResetVideo_Emu () { GXRModeObj *rmode; Mtx44 p; int i = -1; if (GCSettings.render == 0) // original render mode { for (i=0; i<4; i++) { if (tvmodes[i]->efbHeight == vheight) break; } rmode = tvmodes[i]; // hack to fix video output for hq2x if (GCSettings.FilterMethod != FILTER_NONE) { memcpy(&TV_Custom, tvmodes[i], sizeof(TV_Custom)); rmode = &TV_Custom; rmode->fbWidth = 512; rmode->efbHeight *= 2; rmode->xfbHeight *= 2; rmode->xfbMode = VI_XFBMODE_DF; rmode->viTVMode |= VI_INTERLACE; } } else { rmode = vmode; // same mode as menu } VIDEO_Configure (rmode); VIDEO_Flush(); VIDEO_WaitVSync(); if (rmode->viTVMode & VI_NON_INTERLACE) VIDEO_WaitVSync(); else while (VIDEO_GetNextField()) VIDEO_WaitVSync(); GXColor background = {0, 0, 0, 255}; GX_SetCopyClear (background, 0x00ffffff); GX_SetViewport (0, 0, rmode->fbWidth, rmode->efbHeight, 0, 1); GX_SetDispCopyYScale ((f32) rmode->xfbHeight / (f32) rmode->efbHeight); GX_SetScissor (0, 0, rmode->fbWidth, rmode->efbHeight); GX_SetDispCopySrc (0, 0, rmode->fbWidth, rmode->efbHeight); GX_SetDispCopyDst (rmode->fbWidth, rmode->xfbHeight); GX_SetCopyFilter (rmode->aa, rmode->sample_pattern, (GCSettings.render == 1) ? GX_TRUE : GX_FALSE, rmode->vfilter); // deflicker ON only for filtered mode GX_SetFieldMode (rmode->field_rendering, ((rmode->viHeight == 2 * rmode->xfbHeight) ? GX_ENABLE : GX_DISABLE)); GX_SetPixelFmt (GX_PF_RGB8_Z24, GX_ZC_LINEAR); GX_SetZMode (GX_TRUE, GX_LEQUAL, GX_TRUE); GX_SetColorUpdate (GX_TRUE); guOrtho(p, rmode->efbHeight/2, -(rmode->efbHeight/2), -(rmode->fbWidth/2), rmode->fbWidth/2, 100, 1000); // matrix, t, b, l, r, n, f GX_LoadProjectionMtx (p, GX_ORTHOGRAPHIC); draw_init (); } /**************************************************************************** * Update Video ***************************************************************************/ uint32 prevRenderedFrameCount = 0; extern bool CheckVideo; int fscale; void update_video (int width, int height) { vwidth = width; vheight = height; // Ensure previous vb has complete while ((LWP_ThreadIsSuspended (vbthread) == 0) || (copynow == GX_TRUE)) { usleep (50); } whichfb ^= 1; if ( oldvheight != vheight || oldvwidth != vwidth ) // if rendered width/height changes, update scaling CheckVideo = 1; if ( CheckVideo && (IPPU.RenderedFramesCount != prevRenderedFrameCount) ) // if we get back from the menu, and have rendered at least 1 frame { int xscale, yscale; fscale = GetFilterScale((RenderFilter)GCSettings.FilterMethod); ResetVideo_Emu (); // reset video to emulator rendering settings /** Update scaling **/ if (GCSettings.render == 0) // original render mode { if (GCSettings.FilterMethod != FILTER_NONE) // hq2x filters { xscale = vwidth; yscale = vheight; } else { xscale = 256; yscale = vheight / 2; } } else // unfiltered and filtered mode { xscale = 320; yscale = (vheight > (vmode->efbHeight/2)) ? (vheight / 2) : vheight; } // aspect ratio scaling (change width scale) // yes its pretty cheap and ugly, but its easy! if (GCSettings.widescreen) xscale = (3*xscale)/4; xscale *= GCSettings.ZoomLevel; yscale *= GCSettings.ZoomLevel; square[6] = square[3] = xscale + GCSettings.xshift; square[0] = square[9] = -xscale + GCSettings.xshift; square[4] = square[1] = yscale - GCSettings.yshift; square[7] = square[10] = -yscale - GCSettings.yshift; DCFlushRange (square, 32); // update memory BEFORE the GPU accesses it! draw_init (); // initialize the texture obj we are going to use GX_InitTexObj (&texobj, texturemem, vwidth*fscale, vheight*fscale, GX_TF_RGB565, GX_CLAMP, GX_CLAMP, GX_FALSE); if (GCSettings.render == 0 || GCSettings.render == 2) GX_InitTexObjLOD(&texobj,GX_NEAR,GX_NEAR_MIP_NEAR,2.5,9.0,0.0,GX_FALSE,GX_FALSE,GX_ANISO_1); // original/unfiltered video mode: force texture filtering OFF GX_LoadTexObj (&texobj, GX_TEXMAP0); // load texture object so its ready to use oldvwidth = vwidth; oldvheight = vheight; CheckVideo = 0; } // convert image to texture if (GCSettings.FilterMethod != FILTER_NONE) { FilterMethod ((uint8*) GFX.Screen, EXT_PITCH, (uint8*) filtermem, vwidth*fscale*2, vwidth, vheight); MakeTexture565((char *) filtermem, (char *) texturemem, vwidth*fscale, vheight*fscale); } else { MakeTexture((char *) GFX.Screen, (char *) texturemem, vwidth, vheight); } DCFlushRange (texturemem, TEXTUREMEM_SIZE); // update the texture memory GX_InvalidateTexAll (); draw_square (view); // draw the quad GX_DrawDone (); VIDEO_SetNextFramebuffer (xfb[whichfb]); VIDEO_Flush (); copynow = GX_TRUE; // Return to caller, don't waste time waiting for vb LWP_ResumeThread (vbthread); } /**************************************************************************** * Zoom Functions ***************************************************************************/ void zoom (float speed) { if (GCSettings.ZoomLevel > 1) GCSettings.ZoomLevel += (speed / -100.0); else GCSettings.ZoomLevel += (speed / -200.0); if (GCSettings.ZoomLevel < 0.5) GCSettings.ZoomLevel = 0.5; else if (GCSettings.ZoomLevel > 2.0) GCSettings.ZoomLevel = 2.0; oldvheight = 0; // update video } void zoom_reset () { GCSettings.ZoomLevel = 1.0; oldvheight = 0; // update video } void AllocGfxMem() { snes9xgfx = (unsigned char *)memalign(32, SNES9XGFX_SIZE); memset(snes9xgfx, 0, SNES9XGFX_SIZE); filtermem = (unsigned char *)memalign(32, FILTERMEM_SIZE); memset(filtermem, 0, FILTERMEM_SIZE); GFX.Pitch = EXT_PITCH; GFX.Screen = (uint16*)(snes9xgfx + EXT_OFFSET); } void FreeGfxMem() { if(snes9xgfx) { free(snes9xgfx); snes9xgfx = NULL; } if(filtermem) { free(filtermem); filtermem = NULL; } } /**************************************************************************** * setGFX * * Setup the global GFX information for Snes9x ***************************************************************************/ void setGFX () { GFX.Pitch = EXT_PITCH; } /**************************************************************************** * TakeScreenshot * * Copies the current screen into a GX texture ***************************************************************************/ void TakeScreenshot() { int texSize = vmode->fbWidth * vmode->efbHeight * 4; if(gameScreenTex) free(gameScreenTex); gameScreenTex = (u8 *)memalign(32, texSize); if(gameScreenTex == NULL) return; GX_SetTexCopySrc(0, 0, vmode->fbWidth, vmode->efbHeight); GX_SetTexCopyDst(vmode->fbWidth, vmode->efbHeight, GX_TF_RGBA8, GX_FALSE); GX_CopyTex(gameScreenTex, GX_FALSE); GX_PixModeSync(); DCFlushRange(gameScreenTex, texSize); #ifdef HW_RVL if(gameScreenTex2) free(gameScreenTex2); gameScreenTex2 = (u8 *)memalign(32, texSize); if(gameScreenTex2 == NULL) return; GX_CopyTex(gameScreenTex2, GX_FALSE); GX_PixModeSync(); DCFlushRange(gameScreenTex2, texSize); #endif } /**************************************************************************** * ResetVideo_Menu * * Reset the video/rendering mode for the menu ****************************************************************************/ void ResetVideo_Menu () { Mtx44 p; f32 yscale; u32 xfbHeight; VIDEO_Configure (vmode); VIDEO_Flush(); VIDEO_WaitVSync(); if (vmode->viTVMode & VI_NON_INTERLACE) VIDEO_WaitVSync(); else while (VIDEO_GetNextField()) VIDEO_WaitVSync(); // clears the bg to color and clears the z buffer GXColor background = {0, 0, 0, 255}; GX_SetCopyClear (background, 0x00ffffff); yscale = GX_GetYScaleFactor(vmode->efbHeight,vmode->xfbHeight); xfbHeight = GX_SetDispCopyYScale(yscale); GX_SetScissor(0,0,vmode->fbWidth,vmode->efbHeight); GX_SetDispCopySrc(0,0,vmode->fbWidth,vmode->efbHeight); GX_SetDispCopyDst(vmode->fbWidth,xfbHeight); GX_SetCopyFilter(vmode->aa,vmode->sample_pattern,GX_TRUE,vmode->vfilter); GX_SetFieldMode(vmode->field_rendering,((vmode->viHeight==2*vmode->xfbHeight)?GX_ENABLE:GX_DISABLE)); if (vmode->aa) GX_SetPixelFmt(GX_PF_RGB565_Z16, GX_ZC_LINEAR); else GX_SetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR); // setup the vertex descriptor // tells the flipper to expect direct data GX_ClearVtxDesc(); GX_InvVtxCache (); GX_InvalidateTexAll(); GX_SetVtxDesc(GX_VA_TEX0, GX_NONE); GX_SetVtxDesc(GX_VA_POS, GX_DIRECT); GX_SetVtxDesc (GX_VA_CLR0, GX_DIRECT); GX_SetVtxAttrFmt (GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0); GX_SetVtxAttrFmt (GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0); GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0); GX_SetZMode (GX_FALSE, GX_LEQUAL, GX_TRUE); GX_SetNumChans(1); GX_SetNumTexGens(1); GX_SetTevOp (GX_TEVSTAGE0, GX_PASSCLR); GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0); GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY); guMtxIdentity(GXmodelView2D); guMtxTransApply (GXmodelView2D, GXmodelView2D, 0.0F, 0.0F, -50.0F); GX_LoadPosMtxImm(GXmodelView2D,GX_PNMTX0); guOrtho(p,0,479,0,639,0,300); GX_LoadProjectionMtx(p, GX_ORTHOGRAPHIC); GX_SetViewport(0,0,vmode->fbWidth,vmode->efbHeight,0,1); GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR); GX_SetAlphaUpdate(GX_TRUE); } /**************************************************************************** * Menu_Render * * Renders everything current sent to GX, and flushes video ***************************************************************************/ void Menu_Render() { GX_DrawDone (); whichfb ^= 1; // flip framebuffer GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE); GX_SetColorUpdate(GX_TRUE); GX_CopyDisp(xfb[whichfb],GX_TRUE); VIDEO_SetNextFramebuffer(xfb[whichfb]); VIDEO_Flush(); VIDEO_WaitVSync(); } /**************************************************************************** * Menu_DrawImg * * Draws the specified image on screen using GX ***************************************************************************/ void Menu_DrawImg(f32 xpos, f32 ypos, u16 width, u16 height, u8 data[], f32 degrees, f32 scaleX, f32 scaleY, u8 alpha) { if(data == NULL) return; GXTexObj texObj; GX_InitTexObj(&texObj, data, width,height, GX_TF_RGBA8,GX_CLAMP, GX_CLAMP,GX_FALSE); GX_LoadTexObj(&texObj, GX_TEXMAP0); GX_InvalidateTexAll(); GX_SetTevOp (GX_TEVSTAGE0, GX_MODULATE); GX_SetVtxDesc (GX_VA_TEX0, GX_DIRECT); Mtx m,m1,m2, mv; width *=.5; height*=.5; guMtxIdentity (m1); guMtxScaleApply(m1,m1,scaleX,scaleY,1.0); Vector axis = (Vector) {0 , 0, 1 }; guMtxRotAxisDeg (m2, &axis, degrees); guMtxConcat(m2,m1,m); guMtxTransApply(m,m, xpos+width,ypos+height,0); guMtxConcat (GXmodelView2D, m, mv); GX_LoadPosMtxImm (mv, GX_PNMTX0); GX_Begin(GX_QUADS, GX_VTXFMT0,4); GX_Position3f32(-width, -height, 0); GX_Color4u8(0xFF,0xFF,0xFF,alpha); GX_TexCoord2f32(0, 0); GX_Position3f32(width, -height, 0); GX_Color4u8(0xFF,0xFF,0xFF,alpha); GX_TexCoord2f32(1, 0); GX_Position3f32(width, height, 0); GX_Color4u8(0xFF,0xFF,0xFF,alpha); GX_TexCoord2f32(1, 1); GX_Position3f32(-width, height, 0); GX_Color4u8(0xFF,0xFF,0xFF,alpha); GX_TexCoord2f32(0, 1); GX_End(); GX_LoadPosMtxImm (GXmodelView2D, GX_PNMTX0); GX_SetTevOp (GX_TEVSTAGE0, GX_PASSCLR); GX_SetVtxDesc (GX_VA_TEX0, GX_NONE); } /**************************************************************************** * Menu_DrawRectangle * * Draws a rectangle at the specified coordinates using GX ***************************************************************************/ void Menu_DrawRectangle(f32 x, f32 y, f32 width, f32 height, GXColor color, u8 filled) { u8 fmt; long n; int i; f32 x2 = x+width; f32 y2 = y+height; Vector v[] = {{x,y,0.0f}, {x2,y,0.0f}, {x2,y2,0.0f}, {x,y2,0.0f}, {x,y,0.0f}}; if(!filled) { fmt = GX_LINESTRIP; n = 5; } else { fmt = GX_TRIANGLEFAN; n = 4; } GX_Begin(fmt, GX_VTXFMT0, n); for(i=0; i