56cac8cbc8
git-svn-id: svn://localhost/Users/andi/Downloads/code/trunk@13 eddbe33b-e435-4246-ac25-f5eb65f9a13c
242 lines
6.7 KiB
C++
242 lines
6.7 KiB
C++
/****************************************************************************
|
|
* libwiigui Template
|
|
* Tantric 2009
|
|
*
|
|
* video.cpp
|
|
* Video routines
|
|
***************************************************************************/
|
|
|
|
#include <gccore.h>
|
|
#include <ogcsys.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <math.h>
|
|
#include <ogc/conf.h>
|
|
|
|
#define DEFAULT_FIFO_SIZE 256 * 1024
|
|
static unsigned int *xfb[2] = { NULL, NULL }; // Double buffered
|
|
static int whichfb = 0; // Switch
|
|
static GXRModeObj *vmode; // Menu video mode
|
|
static unsigned char gp_fifo[DEFAULT_FIFO_SIZE] ATTRIBUTE_ALIGN (32);
|
|
static Mtx GXmodelView2D;
|
|
|
|
/****************************************************************************
|
|
* 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);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* 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, -200.0F);
|
|
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);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* InitVideo
|
|
*
|
|
* This function MUST be called at startup.
|
|
* - also sets up menu video mode
|
|
***************************************************************************/
|
|
|
|
void
|
|
InitVideo ()
|
|
{
|
|
VIDEO_Init();
|
|
vmode = VIDEO_GetPreferredMode(NULL); // get default video mode
|
|
|
|
VIDEO_Configure (vmode);
|
|
|
|
// 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_SetBlack (FALSE);
|
|
VIDEO_Flush ();
|
|
VIDEO_WaitVSync ();
|
|
if (vmode->viTVMode & VI_NON_INTERLACE)
|
|
VIDEO_WaitVSync ();
|
|
|
|
StartGX();
|
|
ResetVideo_Menu();
|
|
// Finally, the video is up and ready for use :)
|
|
}
|
|
|
|
/****************************************************************************
|
|
* StopGX
|
|
*
|
|
* Stops GX (when exiting)
|
|
***************************************************************************/
|
|
void StopGX()
|
|
{
|
|
GX_AbortFrame();
|
|
GX_Flush();
|
|
|
|
VIDEO_SetBlack(TRUE);
|
|
VIDEO_Flush();
|
|
}
|
|
|
|
/****************************************************************************
|
|
* 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, f32 zpos, 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(m1,m2,m);
|
|
|
|
guMtxTransApply(m,m, xpos+width+0.5,ypos+height+0.5,zpos);
|
|
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);
|
|
}
|