void drawInit()
{
Mtx44 GXprojection2D;
Mtx GXmodelView2D;
// Reset various parameters from gfx plugin
GX_SetCoPlanar(GX_DISABLE);
GX_SetClipMode(GX_CLIP_ENABLE);
// GX_SetScissor(0,0,vmode->fbWidth,vmode->efbHeight);
GX_SetAlphaCompare(GX_ALWAYS,0,GX_AOP_AND,GX_ALWAYS,0);
guMtxIdentity(GXmodelView2D);
GX_LoadTexMtxImm(GXmodelView2D,GX_TEXMTX0,GX_MTX2x4);
GX_LoadPosMtxImm(GXmodelView2D,GX_PNMTX0);
guOrtho(GXprojection2D, 0, 479, 0, 639, 0, 700);
GX_LoadProjectionMtx(GXprojection2D, GX_ORTHOGRAPHIC);
// GX_SetViewport (0, 0, vmode->fbWidth, vmode->efbHeight, 0, 1);
GX_SetZMode(GX_DISABLE,GX_ALWAYS,GX_TRUE);
GX_ClearVtxDesc();
GX_SetVtxDesc(GX_VA_PTNMTXIDX, GX_PNMTX0);
GX_SetVtxDesc(GX_VA_TEX0MTXIDX, GX_TEXMTX0);
GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
//set vertex attribute formats here
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_NRM, GX_NRM_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);
//enable textures
GX_SetNumChans (1);
GX_SetNumTexGens (1);
GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
GX_SetNumTevStages (1);
GX_SetTevOrder (GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0);
GX_SetTevOp (GX_TEVSTAGE0, GX_PASSCLR);
//set blend mode
GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR); //Fix src alpha
GX_SetColorUpdate(GX_ENABLE);
// GX_SetAlphaUpdate(GX_ENABLE);
// GX_SetDstAlpha(GX_DISABLE, 0xFF);
//set cull mode
GX_SetCullMode (GX_CULL_NONE);
}
inline void Material::ApplyTexCoordGens(void) const
{
// texture coord gen
for(u32 i = 0; i != flags->texture_coord_gen; ++i)
{
const TextureCoordGen &tcg = texture_coord_gens[i];
GX_SetTexCoordGen(GX_TEXCOORD0 + i, tcg.tgen_typ, tcg.tgen_src, tcg.mtxsrc);
const u8 mtrx = (tcg.mtxsrc - GX_TEXMTX0) / 3;
if (tcg.tgen_typ == 1 && tcg.mtxsrc != GX_IDENTITY && mtrx < flags->texture_srt)
{
const TextureSrt& srt = texture_srts[mtrx];
const float rotate_rad = DegToRad(srt.rotate);
const float cosF = cosf(rotate_rad);
const float sinF = sinf(rotate_rad);
// setup texture matrix
Mtx m;
m[0][0] = srt.scale_x * cosF;
m[0][1] = srt.scale_y * -sinF;
m[0][2] = 0.0f;
m[0][3] = -0.5f * (m[0][0] + m[0][1]) + srt.translate_x + 0.5f;
m[1][0] = srt.scale_x * sinF;
m[1][1] = srt.scale_y * cosF;
m[1][2] = 0.0f;
m[1][3] = -0.5f * (m[1][0] + m[1][1]) + srt.translate_y + 0.5f;
m[2][0] = 0.0f;
m[2][1] = 0.0f;
m[2][2] = 1.0f;
m[2][3] = 0.0f;
GX_LoadTexMtxImm(m, tcg.mtxsrc, GX_MTX3x4);
}
}
GX_SetNumTexGens(flags->texture_coord_gen);
}
//---------------------------------------------------------------------------------
int main( int argc, char **argv ){
//---------------------------------------------------------------------------------
f32 yscale;
u32 xfbHeight;
// various matrices for things like view
Mtx view,mv,mr;
Mtx44 perspective;
// the texure we're going to paint
GXTexObj texture;
TPLFile mudTPL;
u32 fb = 0; // initial framebuffer index
GXColor background = {0, 0, 0, 0xff};
// init the vi.
VIDEO_Init();
rmode = VIDEO_GetPreferredMode(NULL);
WPAD_Init();
// allocate 2 framebuffers for double buffering
frameBuffer[0] = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));
frameBuffer[1] = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));
// configure video and wait for the screen to blank
VIDEO_Configure(rmode);
VIDEO_SetNextFramebuffer(frameBuffer[fb]);
VIDEO_SetBlack(FALSE);
VIDEO_Flush();
VIDEO_WaitVSync();
if(rmode->viTVMode&VI_NON_INTERLACE) VIDEO_WaitVSync();
// setup the fifo...
void *gp_fifo = NULL;
gp_fifo = memalign(32,DEFAULT_FIFO_SIZE);
memset(gp_fifo,0,DEFAULT_FIFO_SIZE);
// ...then init the flipper
GX_Init(gp_fifo,DEFAULT_FIFO_SIZE);
// clears the bg to color and clears the z buffer
GX_SetCopyClear(background, 0x00ffffff);
// 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(frameBuffer[fb],GX_TRUE);
GX_SetDispCopyGamma(GX_GM_1_0);
// setup the vertex attribute table
// describes the data
// args: vat location 0-7, type of data, data format, size, scale
// so for ex. in the first call we are sending position data with
// 3 values X,Y,Z of size F32. scale sets the number of fractional
// bits for non float data.
GX_InvVtxCache();
GX_ClearVtxDesc();
GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc(GX_VA_NRM, GX_DIRECT);
GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_NRM, GX_NRM_XYZ, GX_F32, 0);
GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
// setup texture coordinate generation
// args: texcoord slot 0-7, matrix type, source to generate texture coordinates from, matrix to use
GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX3x4, GX_TG_TEX0, GX_IDENTITY);
f32 w = rmode->viWidth;
f32 h = rmode->viHeight;
guLightPerspective(mv,45, (f32)w/h, 1.05F, 1.0F, 0.0F, 0.0F);
guMtxTrans(mr, 0.0F, 0.0F, -1.0F);
guMtxConcat(mv, mr, mv);
GX_LoadTexMtxImm(mv, GX_TEXMTX0, GX_MTX3x4);
GX_InvalidateTexAll();
TPL_OpenTPLFromMemory(&mudTPL, (void *)mud_tpl,mud_tpl_size);
TPL_GetTexture(&mudTPL,mud,&texture);
// setup our camera at the origin
// looking down the -z axis with y up
guVector cam = {0.0F, 0.0F, 0.0F},
up = {0.0F, 1.0F, 0.0F},
look = {0.0F, 0.0F, -1.0F};
guLookAt(view, &cam, &up, &look);
// setup our projection matrix
// this creates a perspective matrix with a view angle of 90,
// and aspect ratio based on the display resolution
guPerspective(perspective, 45, (f32)w/h, 0.1F, 300.0F);
GX_LoadProjectionMtx(perspective, GX_PERSPECTIVE);
// get the room ready to render
SetupWorld();
while(1) {
WPAD_ScanPads();
s8 tpad = PAD_StickX(0);
// Rotate left or right.
if ((tpad < -8) || (tpad > 8)) yrot -= (float)tpad / 50.f;
// NOTE: walkbiasangle = head bob
tpad = PAD_StickY(0);
// Go forward.
if(tpad > 50) {
xpos -= (float)sin(DegToRad(yrot)) * 0.05f; // Move on the x-plane based on player direction
zpos -= (float)cos(DegToRad(yrot)) * 0.05f; // Move on the z-plane based on player direction
if (walkbiasangle >= 359.0f) walkbiasangle = 0.0f; // Bring walkbiasangle back around
else walkbiasangle += 10; // if walkbiasangle < 359 increase it by 10
walkbias = (float)sin(DegToRad(walkbiasangle))/20.0f;
}
// Go backward
if(tpad < -50) {
xpos += (float)sin(DegToRad(yrot)) * 0.05f;
zpos += (float)cos(DegToRad(yrot)) * 0.05f;
if (walkbiasangle <= 1.0f) walkbiasangle = 359.0f;
else walkbiasangle -= 10;
walkbias = (float)sin(DegToRad(walkbiasangle))/20.0f;
}
tpad = PAD_SubStickY(0);
// Tilt up/down
if (((tpad > 8) || (tpad < -8)) && ((90 >= lookupdown) && (lookupdown >= -90))) {
zdepth -= ((f32)tpad * 0.01f);
lookupdown -= ((f32)tpad * 0.01f);
if (lookupdown > 90) lookupdown = 90.0F;
if (lookupdown < -90) lookupdown = -90.0F;
}
if ( PAD_ButtonsDown(0) & PAD_BUTTON_START) {
exit(0);
}
// do this before drawing
GX_SetViewport(0,0,rmode->fbWidth,rmode->efbHeight,0,1);
//set number of textures to generate
GX_SetNumTexGens(1);
// Draw things
DrawScene(view,texture);
GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE);
GX_SetColorUpdate(GX_TRUE);
GX_CopyDisp(frameBuffer[fb],GX_TRUE);
// do this stuff after drawing
GX_DrawDone();
fb ^= 1; // flip framebuffer
VIDEO_SetNextFramebuffer(frameBuffer[fb]);
VIDEO_Flush();
VIDEO_WaitVSync();
}
return 0;
}
