mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-12-27 11:41:49 +01:00
569 lines
13 KiB
C++
569 lines
13 KiB
C++
/****************************************************************************
|
|
* Snes9x 1.51 Nintendo Wii/Gamecube Port
|
|
*
|
|
* Michniewski 2008
|
|
*
|
|
* gui.cpp
|
|
***************************************************************************/
|
|
|
|
#include <gccore.h>
|
|
#include <ogcsys.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <wiiuse/wpad.h>
|
|
#include <malloc.h>
|
|
|
|
#include <pngu/pngu.h>
|
|
#include <ft2build.h>
|
|
#include <zlib.h>
|
|
#include FT_FREETYPE_H
|
|
|
|
#include "video.h"
|
|
#include "snes9xGX.h"
|
|
#include "gui.h"
|
|
|
|
struct sGui Gui;
|
|
|
|
GXTexObj texobj_BG, texobj_MENU;
|
|
void * texdata_bg; // stores the blended menu backdrop
|
|
void * texdata_menu; // stores the menu overlay
|
|
|
|
bool mem_alloced = 0;
|
|
|
|
extern GXTexObj texobj;
|
|
extern int vwidth, vheight;
|
|
extern s16 square[];
|
|
extern Mtx view;
|
|
extern int whichfb;
|
|
extern unsigned int copynow;
|
|
extern int screenheight;
|
|
extern unsigned int *xfb[2];
|
|
extern GXRModeObj *vmode;
|
|
|
|
extern FT_Library ftlibrary;
|
|
extern FT_Face face;
|
|
extern FT_GlyphSlot slot;
|
|
extern FT_UInt glyph_index;
|
|
|
|
extern int WaitButtonAB ();
|
|
|
|
|
|
// MAIN
|
|
|
|
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; // model matrix.
|
|
Mtx mv; // modelview matrix.
|
|
|
|
guMtxIdentity (m);
|
|
guMtxTransApply (m, m, 0, 0, -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 ();
|
|
}
|
|
|
|
void
|
|
gui_alphasetup ()
|
|
{
|
|
GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR);
|
|
GX_SetAlphaUpdate(GX_ENABLE);
|
|
}
|
|
|
|
void
|
|
gui_alloc ()
|
|
{
|
|
if (!mem_alloced)
|
|
{
|
|
texdata_bg = memalign (32, 640 * 480 * 4);
|
|
texdata_menu = memalign (32, 640 * 480 * 4);
|
|
Gui.texmem = memalign (32, 640 * 480 * 4);
|
|
|
|
mem_alloced = 1;
|
|
}
|
|
}
|
|
|
|
void
|
|
gui_free ()
|
|
{
|
|
if (mem_alloced)
|
|
{
|
|
free (texdata_bg);
|
|
free (texdata_menu);
|
|
free (Gui.texmem);
|
|
|
|
mem_alloced = 0;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* make BG
|
|
*
|
|
* Blend the last rendered emulator screen and the menu backdrop.
|
|
* Save this as a texture to be loaded later
|
|
****************************************************************************/
|
|
void
|
|
gui_makebg ()
|
|
{
|
|
IMGCTX ctx;
|
|
PNGUPROP imgProp;
|
|
|
|
/** Load menu backdrop (either from file or buffer) **/
|
|
|
|
ctx = PNGU_SelectImageFromDevice ("bg.png");
|
|
PNGU_GetImageProperties (ctx, &imgProp);
|
|
// can check image dimensions here
|
|
//texdata_bg = memalign (32, imgProp.imgWidth * imgProp.imgHeight * 4);
|
|
GX_InitTexObj (&texobj_BG, &texdata_bg, 640, 480, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
//PNGU_DecodeTo4x4RGBA8 (ctx, imgProp.imgWidth, imgProp.imgHeight, &texdata_bg, 255);
|
|
PNGU_DecodeToRGBA8 (ctx, 640, 480, Gui.texmem, 0, 7);
|
|
Make_Texture_RGBA8 (&texdata_bg, Gui.texmem, 640, 480);
|
|
PNGU_ReleaseImageContext (ctx);
|
|
DCFlushRange (&texdata_bg, imgProp.imgWidth * imgProp.imgHeight * 4);
|
|
|
|
/*
|
|
texdata_bg = memalign (32, 640 * 480 * 4);
|
|
#ifdef HW_RVL
|
|
// on wii copy from memory
|
|
memcpy (texdata_bg, (char *) backdrop, 640 * 480 * 2);
|
|
#else
|
|
// on gc copy from aram
|
|
ARAMFetch (texdata_bg, (char *) AR_BACKDROP, 640 * 480 * 2);
|
|
#endif
|
|
*/
|
|
|
|
/** blend last rendered snes frame and menu backdrop **/
|
|
|
|
// draw 640x480 quads
|
|
int xscale, yscale, xshift, yshift;
|
|
xshift = yshift = 0;
|
|
xscale = 320;
|
|
yscale = 240;
|
|
square[6] = square[3] = xscale + xshift;
|
|
square[0] = square[9] = -xscale + xshift;
|
|
square[4] = square[1] = yscale + yshift;
|
|
square[7] = square[10] = -yscale + yshift;
|
|
|
|
// draw 2 quads
|
|
|
|
GX_InvalidateTexAll ();
|
|
|
|
// behind (last snes frame)
|
|
square[2] = square[5] = square[8] = square[11] = 0; // z value
|
|
GX_InvVtxCache ();
|
|
GX_LoadTexObj (&texobj, GX_TEXMAP0); // load last rendered snes frame
|
|
draw_square (view);
|
|
|
|
// in front (menu backdrop)
|
|
square[2] = square[5] = square[8] = square[11] = 1; // z value
|
|
GX_InvVtxCache ();
|
|
GX_LoadTexObj (&texobj_BG, GX_TEXMAP0);
|
|
draw_square (view);
|
|
|
|
GX_DrawDone ();
|
|
|
|
/* DEBUG -----------
|
|
// show the output
|
|
VIDEO_SetNextFramebuffer (xfb[whichfb]);
|
|
VIDEO_Flush ();
|
|
copynow = GX_TRUE;
|
|
#ifdef VIDEO_THREADING
|
|
// Return to caller, don't waste time waiting for vb
|
|
LWP_ResumeThread (vbthread);
|
|
#endif
|
|
WaitButtonAB();
|
|
*/
|
|
|
|
// load blended image from efb to a texture
|
|
GX_InitTexObj (&texobj_BG, &texdata_bg, 640, 480, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
GX_SetTexCopySrc ( 0,0,640,480 );
|
|
GX_SetTexCopyDst ( 640, 480, GX_TF_RGBA8, 0 );
|
|
GX_CopyTex (&texdata_bg, 0); // assuming that the efb is 640x480, which it should be
|
|
GX_PixModeSync (); // wait until copy has completed
|
|
DCFlushRange (&texdata_bg, 640 * 480 * 4);
|
|
|
|
|
|
square[2] = square[5] = square[8] = square[11] = 0; // reset z value
|
|
GX_InvVtxCache ();
|
|
}
|
|
|
|
void
|
|
gui_clearscreen ()
|
|
{
|
|
whichfb ^= 1;
|
|
VIDEO_ClearFrameBuffer (vmode, xfb[whichfb], COLOR_BLACK);
|
|
memset ( Gui.texmem, 0, sizeof(Gui.texmem) );
|
|
Gui.fontcolour = 0;
|
|
}
|
|
|
|
void
|
|
gui_draw ()
|
|
{
|
|
gui_drawbox (0, 0, 640, 80, 255, 255, 255, 128); // topbar
|
|
gui_drawbox (0, 370, 640, 480, 255, 255, 255, 128); // bottombar
|
|
gui_setfontcolour (0,255,0,255);
|
|
// top bar text
|
|
setfontsize (32); // 32/24 depending on whether selected or not
|
|
gui_DrawText (-1, 35, (char *)"Menu");
|
|
// main text
|
|
setfontsize (24);
|
|
gui_DrawText (75, 113, (char *)"Hello World");
|
|
// bottom bar text
|
|
setfontsize (24);
|
|
gui_DrawText (75, 400, (char *)"Description");
|
|
}
|
|
|
|
void
|
|
gui_savescreen ()
|
|
{
|
|
FILE* handle;
|
|
handle = fopen ("out.txt", "wb");
|
|
fwrite (Gui.texmem, 1, sizeof(Gui.texmem), handle);
|
|
fclose (handle);
|
|
|
|
printf("\nsaved screen.");
|
|
}
|
|
|
|
void
|
|
gui_showscreen ()
|
|
{
|
|
|
|
/** Screen to Texture **/
|
|
|
|
GX_InitTexObj (&texobj_MENU, texdata_menu, 640, 480, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
Make_Texture_RGBA8 (texdata_menu, Gui.texmem, 640, 480);
|
|
DCFlushRange (&texdata_menu, 640 * 480 * 4);
|
|
|
|
GX_InvalidateTexAll ();
|
|
|
|
/** thats nice, but will it blend? **/
|
|
|
|
// draw 640x480 quads
|
|
int xscale, yscale, xshift, yshift;
|
|
xshift = yshift = 0;
|
|
xscale = 320;
|
|
yscale = 240;
|
|
square[6] = square[3] = xscale + xshift;
|
|
square[0] = square[9] = -xscale + xshift;
|
|
square[4] = square[1] = yscale + yshift;
|
|
square[7] = square[10] = -yscale + yshift;
|
|
|
|
// draw 2 quads
|
|
|
|
// backdrop
|
|
square[2] = square[5] = square[8] = square[11] = 0; // z value
|
|
GX_InvVtxCache ();
|
|
GX_LoadTexObj (&texobj_BG, GX_TEXMAP0);
|
|
draw_square (view);
|
|
|
|
// menu overlay
|
|
square[2] = square[5] = square[8] = square[11] = 1; // z value
|
|
GX_InvVtxCache ();
|
|
GX_LoadTexObj (&texobj_MENU, GX_TEXMAP0);
|
|
draw_square (view);
|
|
|
|
GX_DrawDone ();
|
|
|
|
/** Display **/
|
|
|
|
// show the output
|
|
VIDEO_SetNextFramebuffer (xfb[whichfb]);
|
|
VIDEO_Flush ();
|
|
copynow = GX_TRUE;
|
|
#ifdef VIDEO_THREADING
|
|
/* Return to caller, don't waste time waiting for vb */
|
|
LWP_ResumeThread (vbthread);
|
|
#endif
|
|
WaitButtonAB();
|
|
|
|
square[2] = square[5] = square[8] = square[11] = 0; // z value
|
|
GX_InvVtxCache ();
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Make Texture RGBA8
|
|
*
|
|
* input: pointer to RGBA data
|
|
* output: formatted texture data (GX_TF_RGBA8)
|
|
* code modified from quake wii (thanks :)
|
|
* todo: fix last few lines (?)
|
|
****************************************************************************/
|
|
void
|
|
Make_Texture_RGBA8 (void * dst_tex, void * src_data, int width, int height)
|
|
{
|
|
if ( (width % 4) || (height % 4) ) {
|
|
printf ("Error: make_texture_rgba8 width/height not multiple of 4");
|
|
return;
|
|
}
|
|
|
|
int i, x, y;
|
|
u8 *pos;
|
|
|
|
pos = (u8 *)dst_tex;
|
|
for (y = 0; y < height; y += 4) // process 4 lines at a time to make rows of tiles
|
|
{
|
|
u8* row1 = (u8 *) src_data;
|
|
u8* row2 = (u8 *) src_data;
|
|
u8* row3 = (u8 *) src_data;
|
|
u8* row4 = (u8 *) src_data;
|
|
row1 += width * 4 * (y + 0); // move 640 pixels x 4 bytes * line #
|
|
row2 += width * 4 * (y + 1);
|
|
row3 += width * 4 * (y + 2);
|
|
row4 += width * 4 * (y + 3);
|
|
|
|
for (x = 0; x < width; x += 4) // move across 4 pixels per tile
|
|
{
|
|
u8 AR[32];
|
|
u8 GB[32];
|
|
|
|
for (i = 0; i < 4; i++) // save those 4 pixels of data in texture format
|
|
{
|
|
u8* ptr1 = &(row1[(x + i) * 4]); // start at beginning of a row
|
|
u8* ptr2 = &(row2[(x + i) * 4]); // move across (4 pixels per tile + pixel offset within tile) * 4 bytes per pixel
|
|
u8* ptr3 = &(row3[(x + i) * 4]);
|
|
u8* ptr4 = &(row4[(x + i) * 4]);
|
|
|
|
AR[(i * 2) + 0] = ptr1[3]; // fill columns of tile with rgba data
|
|
AR[(i * 2) + 1] = ptr1[0];
|
|
AR[(i * 2) + 8] = ptr2[3];
|
|
AR[(i * 2) + 9] = ptr2[0];
|
|
AR[(i * 2) + 16] = ptr3[3];
|
|
AR[(i * 2) + 17] = ptr3[0];
|
|
AR[(i * 2) + 24] = ptr4[3];
|
|
AR[(i * 2) + 25] = ptr4[0];
|
|
|
|
GB[(i * 2) + 0] = ptr1[1];
|
|
GB[(i * 2) + 1] = ptr1[2];
|
|
GB[(i * 2) + 8] = ptr2[1];
|
|
GB[(i * 2) + 9] = ptr2[2];
|
|
GB[(i * 2) + 16] = ptr3[1];
|
|
GB[(i * 2) + 17] = ptr3[2];
|
|
GB[(i * 2) + 24] = ptr4[1];
|
|
GB[(i * 2) + 25] = ptr4[2];
|
|
}
|
|
|
|
memcpy(pos, AR, sizeof(AR)); // copy over to resulting texture
|
|
pos += sizeof(AR);
|
|
memcpy(pos, GB, sizeof(GB));
|
|
pos += sizeof(GB);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
gui_drawbox (int x1, int y1, int width, int height, int r, int g, int b, int a)
|
|
{
|
|
u32 colour = ((u8)r << 24) | ((u8)g << 16) | ((u8)b << 8) | (u8)a;
|
|
|
|
int i, j;
|
|
|
|
u32* memory = (u32*) Gui.texmem;
|
|
for (j = y1; j<height; j++) {
|
|
for (i = x1; i<width; i++) {
|
|
memory[(j*640) + i] = colour;
|
|
}
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* DrawCharacter
|
|
* Draws a single character on the screen
|
|
****************************************************************************/
|
|
static void
|
|
gui_DrawCharacter (FT_Bitmap * bmp, FT_Int x, FT_Int y)
|
|
{
|
|
FT_Int i, j, p, q;
|
|
FT_Int x_max = x + bmp->width;
|
|
FT_Int y_max = y + bmp->rows;
|
|
int c;
|
|
|
|
u32* memory = (u32*)Gui.texmem;
|
|
for (i = x, p = 0; i < x_max; i++, p++)
|
|
{
|
|
for (j = y, q = 0; j < y_max; j++, q++)
|
|
{
|
|
if (i < 0 || j < 0 || i >= 640 || j >= 480)
|
|
continue;
|
|
|
|
c = bmp->buffer[q * bmp->width + p];
|
|
|
|
/*** Cool Anti-Aliasing doesn't work too well at hires on GC ***/
|
|
if (c > 128)
|
|
memory[(j * 640) + i] = Gui.fontcolour;
|
|
}
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* DrawText
|
|
*
|
|
* Place the font bitmap on the screen
|
|
****************************************************************************/
|
|
void
|
|
gui_DrawText (int x, int y, char *text)
|
|
{
|
|
int px, n;
|
|
int i;
|
|
int err;
|
|
int value, count;
|
|
|
|
n = strlen (text);
|
|
if (n == 0)
|
|
return;
|
|
|
|
/*** x == -1, auto centre ***/
|
|
if (x == -1)
|
|
{
|
|
value = 0;
|
|
px = 0;
|
|
}
|
|
else
|
|
{
|
|
value = 1;
|
|
px = x;
|
|
}
|
|
|
|
for (count = value; count < 2; count++)
|
|
{
|
|
/*** Draw the string ***/
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
err = FT_Load_Char (face, text[i], FT_LOAD_RENDER);
|
|
|
|
if (err)
|
|
{
|
|
printf ("Error %c %d\n", text[i], err);
|
|
continue; /*** Skip unprintable characters ***/
|
|
}
|
|
|
|
if (count)
|
|
gui_DrawCharacter (&slot->bitmap, px + slot->bitmap_left, y - slot->bitmap_top);
|
|
|
|
px += slot->advance.x >> 6;
|
|
}
|
|
|
|
px = (640 - px) >> 1;
|
|
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* setfontcolour
|
|
*
|
|
* Uses RGB triple values.
|
|
****************************************************************************/
|
|
void
|
|
gui_setfontcolour (int r, int g, int b, int a)
|
|
{
|
|
Gui.fontcolour = ((u8)r << 24) | ((u8)g << 16) | ((u8)b << 8) | (u8)a;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* DrawLine
|
|
*
|
|
* Quick'n'Dirty Bresenham line drawing routine.
|
|
****************************************************************************/
|
|
#define SIGN(x) ((x<0)?-1:((x>0)?1:0))
|
|
|
|
void
|
|
gui_DrawLine (int x1, int y1, int x2, int y2, int r, int g, int b, int a)
|
|
{
|
|
u32 colour;
|
|
int i, dx, dy, sdx, sdy, dxabs, dyabs, x, y, px, py;
|
|
int sp;
|
|
|
|
u32* memory = (u32*)Gui.texmem;
|
|
|
|
colour = ((u8)r << 24) | ((u8)g << 16) | ((u8)b << 8) | (u8)a;
|
|
|
|
dx = x2 - x1; /*** Horizontal distance ***/
|
|
dy = y2 - y1; /*** Vertical distance ***/
|
|
|
|
dxabs = abs (dx);
|
|
dyabs = abs (dy);
|
|
sdx = SIGN (dx);
|
|
sdy = SIGN (dy);
|
|
x = dyabs >> 1;
|
|
y = dxabs >> 1;
|
|
px = x1;
|
|
py = y1;
|
|
|
|
sp = (py * 640) + px;
|
|
|
|
/*** Plot this pixel ***/
|
|
memory[sp] = colour;
|
|
|
|
if (dxabs >= dyabs) /*** Mostly horizontal ***/
|
|
{
|
|
for (i = 0; i < dxabs; i++)
|
|
{
|
|
y += dyabs;
|
|
if (y >= dxabs)
|
|
{
|
|
y -= dxabs;
|
|
py += sdy;
|
|
}
|
|
|
|
px += sdx;
|
|
sp = (py * 640) + px;
|
|
memory[sp] = colour;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < dyabs; i++)
|
|
{
|
|
x += dxabs;
|
|
if (x >= dyabs)
|
|
{
|
|
x -= dyabs;
|
|
px += sdx;
|
|
}
|
|
|
|
py += sdy;
|
|
sp = (py * 640) + px;
|
|
memory[sp] = colour;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
/** draw menu, etc **/
|
|
// - draw topbar, bottombar
|
|
// - draw icons
|
|
// - draw bar text
|
|
|
|
// draw main text
|
|
|
|
/** make textures **/
|
|
// - load background texture
|
|
// - draw onto quad
|
|
// - make foreground texture
|
|
// - draw onto quad
|
|
|
|
/** render image **/
|
|
|
|
/** update framebuffer **/
|
|
|
|
/* */
|
|
|
|
// EOF
|