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Diffstat (limited to 'backends/platform/wii/gx_supp.cpp')
| -rw-r--r-- | backends/platform/wii/gx_supp.cpp | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/backends/platform/wii/gx_supp.cpp b/backends/platform/wii/gx_supp.cpp deleted file mode 100644 index f33adae566..0000000000 --- a/backends/platform/wii/gx_supp.cpp +++ /dev/null @@ -1,287 +0,0 @@ -/**************************************************************************** -* Generic GX Support for Emulators -* softdev 2007 -* dhewg 2008 -* -* This program is free software; you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation; either version 2 of the License, or -* (at your option) any later version. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License along -* with this program; if not, write to the Free Software Foundation, Inc., -* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -* -* NGC GX Video Functions -* -* These are pretty standard functions to setup and use GX scaling. -****************************************************************************/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <malloc.h> - -#include "gx_supp.h" - -#define DEFAULT_FIFO_SIZE (256 * 1024) - -#define HASPECT 320 -#define VASPECT 240 - -#ifdef __cplusplus -extern "C" { -#endif - -/*** 2D ***/ -static u32 whichfb; -static u32 *xfb[2]; -GXRModeObj *vmode = NULL; - -/*** 3D GX ***/ -static u8 *gp_fifo; - -/*** Texture memory ***/ -static u8 *texturemem = NULL; -static u32 texturesize; - -static GXTexObj texobj; -static Mtx view; -static u16 vwidth, vheight, oldvwidth, oldvheight; -static float tex_xT = 0.0f, tex_yT = 0.0f; - -/* New texture based scaler */ -typedef struct tagcamera { - guVector pos; - guVector up; - guVector view; -} camera; - -static s16 square[] ATTRIBUTE_ALIGN(32) = { - -HASPECT, VASPECT, 0, - HASPECT, VASPECT, 0, - HASPECT, -VASPECT, 0, - -HASPECT, -VASPECT, 0, -}; - -static camera cam = { - { 0.0f, 0.0f, 370.0f }, - { 0.0f, 0.5f, 0.0f }, - { 0.0f, 0.0f, -0.5f } -}; - -void GX_InitVideo() { - vmode = VIDEO_GetPreferredMode(NULL); - - vmode->viWidth = 688; - vmode->viXOrigin = (VI_MAX_WIDTH_PAL - 688) / 2; - - VIDEO_Configure(vmode); - - xfb[0] = (u32 *) MEM_K0_TO_K1 (SYS_AllocateFramebuffer(vmode)); - xfb[1] = (u32 *) MEM_K0_TO_K1 (SYS_AllocateFramebuffer(vmode)); - gp_fifo = (u8 *) memalign(32, DEFAULT_FIFO_SIZE); - - VIDEO_ClearFrameBuffer(vmode, xfb[0], COLOR_BLACK); - VIDEO_ClearFrameBuffer(vmode, xfb[1], COLOR_BLACK); - - whichfb = 0; - VIDEO_SetNextFramebuffer(xfb[whichfb]); - VIDEO_SetBlack(FALSE); - VIDEO_Flush(); - VIDEO_WaitVSync(); - - if (vmode->viTVMode & VI_NON_INTERLACE) - VIDEO_WaitVSync(); -} - -void GX_SetTexTrans(float xT, float yT) { - tex_xT = xT; - tex_yT = yT; -} - -void GX_SetCamPosZ(float f) { - cam.pos.z = f; -} - -/**************************************************************************** - * Scaler Support Functions - ****************************************************************************/ -static void draw_init(void) { - 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_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY); - - GX_InvalidateTexAll(); - - GX_InitTexObj(&texobj, texturemem, vwidth, vheight, GX_TF_RGB565, - GX_CLAMP, GX_CLAMP, GX_FALSE); -} - -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; - Mtx mv; - - guMtxIdentity(m); - guMtxTransApply(m, m, tex_xT, tex_yT, -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 - ****************************************************************************/ -void GX_Start(u16 width, u16 height, s16 haspect, s16 vaspect) { - static bool inited = false; - Mtx p; - GXColor gxbackground = { 0, 0, 0, 0xff }; - - /*** Set new aspect ***/ - square[0] = square[9] = -haspect; - square[3] = square[6] = haspect; - square[1] = square[4] = vaspect; - square[7] = square[10] = -vaspect; - - /*** Allocate 32byte aligned texture memory ***/ - texturesize = (width * height) * 2; - - if (texturemem) - free(texturemem); - - texturemem = (u8 *) memalign(32, texturesize); - memset(texturemem, 0, texturesize); - - /*** Setup for first call to scaler ***/ - oldvwidth = oldvheight = 0; - - if (inited) - return; - - inited = true; - - /*** Clear out FIFO area ***/ - memset(gp_fifo, 0, DEFAULT_FIFO_SIZE); - - /*** Initialise GX ***/ - GX_Init(gp_fifo, DEFAULT_FIFO_SIZE); - GX_SetCopyClear(gxbackground, 0x00ffffff); - - GX_SetViewport(0, 0, vmode->fbWidth, vmode->efbHeight, 0, 1); - GX_SetDispCopyYScale((f32) vmode->xfbHeight / (f32) vmode->efbHeight); - GX_SetScissor(0, 0, vmode->fbWidth, vmode->efbHeight); - GX_SetDispCopySrc(0, 0, vmode->fbWidth, vmode->efbHeight); - GX_SetDispCopyDst(vmode->fbWidth, vmode->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)); - GX_SetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR); - GX_SetCullMode(GX_CULL_NONE); - GX_CopyDisp(xfb[whichfb ^ 1], GX_TRUE); - GX_SetDispCopyGamma(GX_GM_1_0); - - guPerspective(p, 60, 1.33f, 10.0f, 1000.0f); - GX_LoadProjectionMtx(p, GX_PERSPECTIVE); - - GX_Flush(); -} - -/**************************************************************************** -* GX_Render -* -* Pass in a buffer, width and height to update as a tiled RGB565 texture -****************************************************************************/ -void GX_Render(u16 width, u16 height, u8 *buffer, u16 pitch) { - u16 h, w; - u64 *dst = (u64 *) texturemem; - u64 *src1 = (u64 *) buffer; - u64 *src2 = (u64 *) (buffer + pitch); - u64 *src3 = (u64 *) (buffer + (pitch * 2)); - u64 *src4 = (u64 *) (buffer + (pitch * 3)); - u16 rowpitch = (pitch >> 3) * 3 + pitch % 8; - - vwidth = width; - vheight = height; - - whichfb ^= 1; - - if ((oldvheight != vheight) || (oldvwidth != vwidth)) { - /** Update scaling **/ - oldvwidth = vwidth; - oldvheight = vheight; - draw_init(); - memset(&view, 0, sizeof(Mtx)); - guLookAt(view, &cam.pos, &cam.up, &cam.view); - GX_SetViewport(0, 0, vmode->fbWidth, vmode->efbHeight, 0, 1); - } - - GX_InvVtxCache(); - GX_InvalidateTexAll(); - GX_SetTevOp(GX_TEVSTAGE0, GX_DECAL); - GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0); - - for (h = 0; h < vheight; h += 4) { - for (w = 0; w < (vwidth >> 2); w++) { - *dst++ = *src1++; - *dst++ = *src2++; - *dst++ = *src3++; - *dst++ = *src4++; - } - - src1 += rowpitch; - src2 += rowpitch; - src3 += rowpitch; - src4 += rowpitch; - } - - DCFlushRange(texturemem, texturesize); - - GX_SetNumChans(1); - GX_LoadTexObj(&texobj, GX_TEXMAP0); - - draw_square(view); - - GX_DrawDone(); - - GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE); - GX_SetColorUpdate(GX_TRUE); - GX_CopyDisp(xfb[whichfb], GX_TRUE); - GX_Flush(); - - VIDEO_SetNextFramebuffer(xfb[whichfb]); - VIDEO_Flush(); -} - -#ifdef __cplusplus -} -#endif - |