usbloadergx/source/video.cpp

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/****************************************************************************
* 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 <wiiuse/wpad.h>
#include "input.h"
#include "gecko.h"
#include "libwiigui/gui.h"
2009-06-13 02:24:36 +02:00
#include "settings/cfg.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;
int screenheight;
int screenwidth;
u32 frameCount = 0;
u8 * gameScreenTex = NULL; // a GX texture screen capture of the game
u8 * gameScreenTex2 = NULL; // a GX texture screen capture of the game (copy)
/****************************************************************************
* 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 );
screenheight = 480;
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 ) );
// 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 :)
// A console is always useful while debugging
console_init ( xfb[0], 80, 100, 500, 350, vmode->fbWidth * 2 );
}
void VIDEO_SetWidescreen(bool widescreen)
{
if ( widescreen )
{
// widescreen fix
vmode->viWidth = VI_MAX_WIDTH_PAL - 12;
vmode->viXOrigin = ( ( VI_MAX_WIDTH_PAL - vmode->viWidth ) / 2 ) + 2;
}
else
{
VIDEO_GetPreferredMode( NULL );
}
VIDEO_Configure ( vmode );
}
/****************************************************************************
* 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()
{
whichfb ^= 1; // flip framebuffer
GX_SetZMode( GX_TRUE, GX_LEQUAL, GX_TRUE );
GX_SetColorUpdate( GX_TRUE );
GX_CopyDisp( xfb[whichfb], GX_TRUE );
GX_DrawDone ();
VIDEO_SetNextFramebuffer( xfb[whichfb] );
VIDEO_Flush();
VIDEO_WaitVSync();
frameCount++;
}
/****************************************************************************
* Menu_DrawImg
*
* Draws the specified image on screen using GX
***************************************************************************/
void Menu_DrawImg( f32 xpos, f32 ypos, f32 zpos, f32 width, f32 height, u8 data[],
f32 degrees, f32 scaleX, f32 scaleY, u8 alpha, int XX1, int YY1, int XX2, int YY2, int XX3, int YY3, int XX4, int YY4 )
{
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 );
guVector axis = ( guVector )
{
0 , 0, 1
};
guMtxRotAxisDeg ( m2, &axis, degrees );
// guMtxConcat(m2,m1,m);
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 + XX1 , -height + YY1, 0 );
GX_Color4u8( 0xFF, 0xFF, 0xFF, alpha );
GX_TexCoord2f32( 0, 0 );
GX_Position3f32( width + XX2, -height + YY2, 0 );
GX_Color4u8( 0xFF, 0xFF, 0xFF, alpha );
GX_TexCoord2f32( 1, 0 );
GX_Position3f32( width + XX3, height + YY3, 0 );
GX_Color4u8( 0xFF, 0xFF, 0xFF, alpha );
GX_TexCoord2f32( 1, 1 );
GX_Position3f32( -width + XX4, height + YY4, 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;
guVector 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 < n; i++ )
{
GX_Position3f32( v[i].x, v[i].y, v[i].z );
GX_Color4u8( color.r, color.g, color.b, color.a );
}
GX_End();
}
void Menu_DrawDiskCover( f32 xpos, f32 ypos, f32 zpos, u16 width, u16 height, u16 distance, u8 data[],
f32 deg_alpha, f32 deg_beta, f32 scaleX, f32 scaleY, u8 alpha, bool shadow )
{
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 );
f32 cos_beta = cos( DegToRad( deg_beta ) );
f32 s_offset_y = ( zpos + ( cos_beta * distance ) ) * tan( DegToRad( 5 ) );
f32 s_offset_x = ( cos_beta < 0 ? -cos_beta : cos_beta ) * s_offset_y;
f32 s_offset_z = ( s_offset_y < 0 ? 0 : s_offset_y ) * 2;
Mtx m, m1, m2, m3, m4, mv;
width *= .5;
height *= .5;
guMtxIdentity ( m4 );
guMtxTransApply( m4, m4, 0, 0, distance );
guMtxIdentity ( m1 );
guMtxScaleApply( m1, m1, scaleX, scaleY, 1.0 );
guVector axis2 = ( guVector )
{
0 , 1, 0
};
guMtxRotAxisDeg ( m2, &axis2, deg_beta );
guVector axis = ( guVector )
{
0 , 0, 1
};
guMtxRotAxisDeg ( m3, &axis, deg_alpha );
// guMtxConcat(m2,m1,m);
guMtxConcat( m3, m4, m3 ); // move distance then rotate z-axis
guMtxConcat( m2, m3, m2 ); // rotate y-axis
guMtxConcat( m1, m2, m ); // scale
if ( shadow )
guMtxTransApply( m, m, xpos + width + 0.5 + s_offset_x, ypos + height + 0.5 + s_offset_y, zpos - s_offset_z );
else
guMtxTransApply( m, m, xpos + width + 0.5, ypos + height + 0.5, zpos );
guMtxConcat ( GXmodelView2D, m, mv );
GX_LoadPosMtxImm ( mv, GX_PNMTX0 );
if ( shadow )
{
GX_Begin( GX_QUADS, GX_VTXFMT0, 4 );
GX_Position3f32( -width, -height, 0 );
GX_Color4u8( 0, 0, 0, alpha );
GX_TexCoord2f32( 0, 0 );
GX_Position3f32( width, -height, 0 );
GX_Color4u8( 0, 0, 0, alpha );
GX_TexCoord2f32( 1, 0 );
GX_Position3f32( width, height, 0 );
GX_Color4u8( 0, 0, 0, alpha );
GX_TexCoord2f32( 1, 1 );
GX_Position3f32( -width, height, 0 );
GX_Color4u8( 0, 0, 0, alpha );
GX_TexCoord2f32( 0, 1 );
}
else
{
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 );
}
void Menu_DrawTPLImg( f32 xpos, f32 ypos, f32 zpos, f32 width, f32 height, GXTexObj *texObj,
f32 degrees, f32 scaleX, f32 scaleY, u8 alpha, int XX1, int YY1, int XX2, int YY2, int XX3, int YY3, int XX4, int YY4 )
{
GX_LoadTexObj( texObj, GX_TEXMAP0 );
GX_InvalidateTexAll();
GX_SetTevOp ( GX_TEVSTAGE0, GX_REPLACE );
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 );
guVector axis = ( guVector )
{
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 + XX1 , -height + YY1, 0 );
GX_Color4u8( 0xFF, 0xFF, 0xFF, alpha );
GX_TexCoord2f32( 0, 0 );
GX_Position3f32( width + XX2, -height + YY2, 0 );
GX_Color4u8( 0xFF, 0xFF, 0xFF, alpha );
GX_TexCoord2f32( 1, 0 );
GX_Position3f32( width + XX3, height + YY3, 0 );
GX_Color4u8( 0xFF, 0xFF, 0xFF, alpha );
GX_TexCoord2f32( 1, 1 );
GX_Position3f32( -width + XX4, height + YY4, 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 );
}
/****************************************************************************
* TakeScreenshot
*
* Copies the current screen into a file "path"
***************************************************************************/
s32 TakeScreenshot( const char *path )
{
gprintf( "\nTakeScreenshot(%s)", path );
IMGCTX ctx = PNGU_SelectImageFromDevice ( path );
s32 ret = PNGU_EncodeFromYCbYCr( ctx, vmode->fbWidth, vmode->efbHeight, xfb[whichfb], 0 );
PNGU_ReleaseImageContext ( ctx );
gprintf( ":%d", ret );
return 1;
}