diff --git a/README.md b/README.md index fc6501d..aab6651 100644 --- a/README.md +++ b/README.md @@ -94,7 +94,6 @@ If you want to remove all the files generated by the compilation process, type ` * hello_poly_subdiv (polygon subdivision) * hello_rsd (rsd format) - * Hello multi XA # Links and Doc diff --git a/hello_font/Makefile b/hello_font/Makefile new file mode 100644 index 0000000..5d15914 --- /dev/null +++ b/hello_font/Makefile @@ -0,0 +1,6 @@ +TARGET = hello_font + +SRCS = hello_font.c \ +fnt.tim \ + +include ../common.mk diff --git a/hello_font/fnt.png b/hello_font/fnt.png new file mode 100644 index 0000000..3c3308c Binary files /dev/null and b/hello_font/fnt.png differ diff --git a/hello_font/fnt.tim b/hello_font/fnt.tim new file mode 100644 index 0000000..0405f35 Binary files /dev/null and b/hello_font/fnt.tim differ diff --git a/hello_font/hello_font.c b/hello_font/hello_font.c new file mode 100644 index 0000000..c26c73b --- /dev/null +++ b/hello_font/hello_font.c @@ -0,0 +1,128 @@ +// Change the debug font face and colors ! +// Schnappy 2020 +#include +#include +#include +#include +#include +#define VMODE 0 // Video Mode : 0 : NTSC, 1: PAL +#define SCREENXRES 320 // Screen width +#define SCREENYRES 240 // Screen height +#define CENTERX SCREENXRES/2 // Center of screen on x +#define CENTERY SCREENYRES/2 // Center of screen on y +#define MARGINX 96 // margins for text display +#define MARGINY 64 +#define FONTSIZE 8 * 7 // Text Field Height +DISPENV disp[2]; // Double buffered DISPENV and DRAWENV +DRAWENV draw[2]; +short db = 0; // index of which buffer is used, values 0, 1 +#define FONTX 960 +#define FONTY 0 +// Two color vectors R,G,B +CVECTOR fntColor = { 255, 0, 0 }; +CVECTOR fntColorBG = { 0, 0, 0 }; + +extern unsigned long _binary_fnt_tim_start[]; +extern unsigned long _binary_fnt_tim_end[]; +extern unsigned long _binary_fnt_tim_length; + +// Loading an image to vram. See https://github.com/ABelliqueux/nolibgs_hello_worlds/blob/main/hello_sprt/hello_sprt.c#L42 +TIM_IMAGE fontface; +void LoadTexture(u_long * tim, TIM_IMAGE * tparam){ + OpenTIM(tim); + ReadTIM(tparam); + LoadImage(tparam->prect, tparam->paddr); + DrawSync(0); + if (tparam->mode & 0x8){ // check 4th bit + LoadImage(tparam->crect, tparam->caddr); + DrawSync(0); + } +} + +void FntColor(CVECTOR fgcol, CVECTOR bgcol ) +{ + // The debug font clut is at tx, ty + 128 + // tx = bg color + // tx + 1 = fg color + // We can override the color by drawing a rect at these coordinates + // + // Define 1 pixel at 960,128 (background color) and 1 pixel at 961, 128 (foreground color) + RECT fg = { FONTX+1, FONTY + 128, 1, 1 }; + RECT bg = { FONTX, FONTY + 128, 1, 1 }; + // Set colors + ClearImage(&fg, fgcol.r, fgcol.g, fgcol.b); + ClearImage(&bg, bgcol.r, bgcol.g, bgcol.b); +} + +void init(void) +{ + ResetGraph(0); // Initialize drawing engine with a complete reset (0) + SetDefDispEnv(&disp[0], 0, 0 , SCREENXRES, SCREENYRES); // Set display area for both &disp[0] and &disp[1] + SetDefDispEnv(&disp[1], 0, SCREENYRES, SCREENXRES, SCREENYRES); // &disp[0] is on top of &disp[1] + SetDefDrawEnv(&draw[0], 0, SCREENYRES, SCREENXRES, SCREENYRES); // Set draw for both &draw[0] and &draw[1] + SetDefDrawEnv(&draw[1], 0, 0 , SCREENXRES, SCREENYRES); // &draw[0] is below &draw[1] + if (VMODE) // PAL + { + SetVideoMode(MODE_PAL); + disp[0].screen.y += 8; // add offset : 240 + 8 + 8 = 256 + disp[1].screen.y += 8; + } + SetDispMask(1); // Display on screen + setRGB0(&draw[0], 50, 50, 50); // set color for first draw area + setRGB0(&draw[1], 50, 50, 50); // set color for second draw area + draw[0].isbg = 1; // set mask for draw areas. 1 means repainting the area with the RGB color each frame + draw[1].isbg = 1; + PutDispEnv(&disp[db]); // set the disp and draw environnments + PutDrawEnv(&draw[db]); + FntLoad(960, 0); // Load font to vram at 960,0(+128) + FntOpen(MARGINX, MARGINY, SCREENXRES, SCREENXRES, 0, 280 ); // FntOpen(x, y, width, height, black_bg, max. nbr. chars + +} +void display(void) +{ + DrawSync(0); // Wait for all drawing to terminate + VSync(0); // Wait for the next vertical blank + PutDispEnv(&disp[db]); // set alternate disp and draw environnments + PutDrawEnv(&draw[db]); + db = !db; // flip db value (0 or 1) +} +int main(void) +{ + u_int t = 0; + u_short step = 10; + u_char * channel, * prevChannel; + channel = &fntColor.r; + prevChannel = &fntColor.b; + init(); // execute init() + LoadTexture(_binary_fnt_tim_start, &fontface); + FntColor(fntColor, fntColorBG); + while (1) // infinite loop + { + + t++; + + if (fntColor.r >= 254 - step ){channel = &fntColor.g; prevChannel = &fntColor.r;} + if (fntColor.g >= 254 - step ){channel = &fntColor.b; prevChannel = &fntColor.g;} + if (fntColor.b >= 254 - step ){channel = &fntColor.r; prevChannel = &fntColor.b;} + + *channel += step; + + if (*prevChannel){ + *prevChannel -= step; + } + //~ fntColorBG.g = 255 - color ; + FntColor(fntColor, fntColorBG); + // 4lines, 16 glyphs on each line + // Glyphs are 5x7 pixels wide in 16bpp, + FntPrint("!\"#$%%&'()*+,-./\n"); + FntPrint("0123456789:;<=^?\n"); + FntPrint("@ABCDEFGHIJKLMNO\n"); + FntPrint("PQRSTUVWXYZ[\\]>"); + + FntPrint("\n\nHELLO DEBUG FONT! %d", t); + + FntFlush(-1); // Draw print stream + display(); // Execute display() + } + return 0; + }