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 <pngu/pngu.h>
#include "input.h"
#include "gecko.h"
#include "GUI/gui.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;
static Mtx44 projection;
int screenheight = 480;
int screenwidth = 640;
u32 frameCount = 0;
/****************************************************************************
* ResetVideo_Menu
*
* Reset the video/rendering mode for the menu
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****************************************************************************/
static void ResetVideo_Menu()
{
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_MODULATE);
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, -9900.0F);
GX_LoadPosMtxImm(GXmodelView2D, GX_PNMTX0);
guOrtho(projection, 0, screenheight-1, 0, screenwidth-1, 0, 10000);
GX_LoadProjectionMtx(projection, GX_ORTHOGRAPHIC);
GX_SetViewport(0.0f, 0.0f, vmode->fbWidth, vmode->efbHeight, 0.0f, 1.0f);
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
***************************************************************************/
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void InitVideo()
{
VIDEO_Init();
vmode = VIDEO_GetPreferredMode(NULL); // get default video mode
if (CONF_GetAspectRatio() == CONF_ASPECT_16_9)
{
// widescreen fix
vmode->viWidth = VI_MAX_WIDTH_PAL - 12;
vmode->viXOrigin = ((VI_MAX_WIDTH_PAL - vmode->viWidth) / 2) + 2;
}
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_Flush();
VIDEO_WaitVSync();
if (vmode->viTVMode & VI_NON_INTERLACE) VIDEO_WaitVSync();
// Initialize GX
GXColor background = { 0, 0, 0, 0xff };
memset (&gp_fifo, 0, DEFAULT_FIFO_SIZE);
GX_Init (&gp_fifo, DEFAULT_FIFO_SIZE);
GX_SetCopyClear (background, 0x00ffffff);
GX_SetDispCopyGamma (GX_GM_1_0);
GX_SetCullMode (GX_CULL_NONE);
ResetVideo_Menu();
VIDEO_SetBlack(FALSE);
// 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();
VIDEO_WaitVSync();
if (vmode->viTVMode & VI_NON_INTERLACE)
VIDEO_WaitVSync();
}
/****************************************************************************
* 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
***************************************************************************/
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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;
GX_LoadProjectionMtx(projection, GX_ORTHOGRAPHIC);
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_SetVtxDesc(GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
Mtx m, m1, m2, mv;
width *= 0.5f;
height *= 0.5f;
guMtxIdentity(m1);
guMtxScaleApply(m1, m1, scaleX, scaleY, 1.0f);
guVector axis = (guVector) {0 , 0, 1};
guMtxRotAxisDeg (m2, &axis, degrees);
guMtxConcat(m1, m2, m);
guMtxTransApply(m, m, xpos + width + 0.5f, ypos + height + 0.5f, 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);
}
/****************************************************************************
* Menu_DrawRectangle
*
* Draws a rectangle at the specified coordinates using GX
***************************************************************************/
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void Menu_DrawRectangle(f32 x, f32 y, f32 width, f32 height, GXColor color, u8 filled)
{
GX_SetTevOp(GX_TEVSTAGE0, GX_PASSCLR);
GX_LoadProjectionMtx(projection, GX_ORTHOGRAPHIC);
GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GX_SetVtxDesc(GX_VA_TEX0, GX_NONE);
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();
GX_SetTevOp(GX_TEVSTAGE0, GX_MODULATE);
}
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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;
GX_LoadProjectionMtx(projection, GX_ORTHOGRAPHIC);
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_SetVtxDesc(GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
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(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);
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
if (shadow)
{
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_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);
}
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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_LoadProjectionMtx(projection, GX_ORTHOGRAPHIC);
GX_LoadTexObj(texObj, GX_TEXMAP0);
GX_InvalidateTexAll();
GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc(GX_VA_CLR0, GX_DIRECT);
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);
}
/****************************************************************************
* TakeScreenshot
*
* Copies the current screen into a file "path"
***************************************************************************/
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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;
}