mirror of
https://github.com/V2RetroComputing/analog.git
synced 2024-06-01 02:41:30 +00:00
f7d4779880
Progress on PCPI mode bug fixes. PCPI mode is now working again, but the config interface is still broken enough to prevent the use of the config utility while in this mode.. Sending the FORMAT command from the monitor rom returns the card to defaults. Replace n with the slot number the card is installed in: Correction of mousetext / inverse / flashing handling on IIe see https://github.com/V2RetroComputing/analog/issues/3 ]CALL -151 *CnF0:46 4F 52 4D 41 54 00 00 Monochrome mode & color palettes are now implemented. $C0n1: Monochrome mode & palette $80: B&W $90: Inverse $A0: Amber $B0: Inverse Amber $C0: Green $D0: Inverse Green $E0: Commodore 64 Theme $F0: Use IIgs palette $C0n2: Mirror of IIgs TBCOLOR register $C0n3: Mirror of IIgs BORDER register
106 lines
3.9 KiB
C
106 lines
3.9 KiB
C
#include <pico/stdlib.h>
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#include "vgabuf.h"
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#include "render.h"
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#include "vgaout.h"
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//#define PAGE2SEL (!(soft_switches & SOFTSW_80STORE) && (soft_switches & SOFTSW_PAGE_2))
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#define PAGE2SEL ((soft_switches & (SOFTSW_80STORE | SOFTSW_PAGE_2)) == SOFTSW_PAGE_2)
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extern uint16_t lores_palette[16];
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extern uint16_t lores_dot_pattern[16];
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static void render_dgr_line(bool p2, uint line);
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void __time_critical_func(render_dgr)() {
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for(uint line=0; line < 24; line++) {
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render_dgr_line(PAGE2SEL, line);
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}
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}
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void __time_critical_func(render_mixed_dgr)() {
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for(uint line=0; line < 20; line++) {
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render_dgr_line(PAGE2SEL, line);
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}
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for(uint line=20; line < 24; line++) {
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if(soft_switches & SOFTSW_80COL) {
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render_text80_line(PAGE2SEL, line);
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} else {
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render_text40_line(PAGE2SEL, line);
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}
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}
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}
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static void __time_critical_func(render_dgr_line)(bool p2, uint line) {
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// Construct two scanlines for the two different colored cells at the same time
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struct vga_scanline *sl1 = vga_prepare_scanline();
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struct vga_scanline *sl2 = vga_prepare_scanline();
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uint sl_pos = 0;
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uint i, j;
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uint32_t color1, color2, color3, color4;
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const uint8_t *line_bufa = (const uint8_t *)((p2 ? text_p2 : text_p1) + ((line & 0x7) << 7) + (((line >> 3) & 0x3) * 40));
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const uint8_t *line_bufb = (const uint8_t *)((p2 ? text_p4 : text_p3) + ((line & 0x7) << 7) + (((line >> 3) & 0x3) * 40));
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// Pad 40 pixels on the left to center horizontally
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for(i = 0; i < 40/8; i++) {
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sl1->data[sl_pos] = (text_border|THEN_EXTEND_3) | ((text_border|THEN_EXTEND_3) << 16); // 8 pixels per word
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sl2->data[sl_pos] = (text_border|THEN_EXTEND_3) | ((text_border|THEN_EXTEND_3) << 16); // 8 pixels per word
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sl_pos++;
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}
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if(soft_switches & SOFTSW_MONOCHROME) {
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for(i = 0; i < 40; i++) {
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color1 = lores_dot_pattern[line_bufb[i] & 0xf] << 21;
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color2 = lores_dot_pattern[(line_bufb[i] >> 4) & 0xf] << 21;
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color1 |= lores_dot_pattern[line_bufa[i] & 0xf] << 7;
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color2 |= lores_dot_pattern[(line_bufa[i] >> 4) & 0xf] << 7;
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for(j = 0; j < 7; j++) {
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uint32_t pixeldata;
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pixeldata = (color1 & 0x8000000) ? (text_fore) : (text_back);
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pixeldata |= (color1 & 0x4000000) ? ((text_fore) << 16) : ((text_back) << 16);
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color1 <<= 2;
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sl1->data[sl_pos] = pixeldata;
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pixeldata = (color2 & 0x8000000) ? (text_fore) : (text_back);
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pixeldata |= (color2 & 0x4000000) ? ((text_fore) << 16) : ((text_back) << 16);
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sl2->data[sl_pos] = pixeldata;
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color2 <<= 2;
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sl_pos++;
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}
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}
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} else {
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for(i=0; i < 40; i++) {
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color1 = lores_palette[line_bufb[i] & 0xf];
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color2 = lores_palette[(line_bufb[i] >> 4) & 0xf];
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color3 = lores_palette[line_bufa[i] & 0xf];
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color4 = lores_palette[(line_bufa[i] >> 4) & 0xf];
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// Each double lores pixel is 7 double hires pixels, or 7 VGA pixels wide
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sl1->data[sl_pos] = (color1|THEN_EXTEND_6) | ((color3|THEN_EXTEND_6) << 16);
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sl2->data[sl_pos] = (color2|THEN_EXTEND_6) | ((color4|THEN_EXTEND_6) << 16);
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sl_pos++;
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}
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}
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// Pad 40 pixels on the right to center horizontally
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for(i = 0; i < 40/8; i++) {
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sl1->data[sl_pos] = (text_border|THEN_EXTEND_3) | ((text_border|THEN_EXTEND_3) << 16); // 8 pixels per word
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sl2->data[sl_pos] = (text_border|THEN_EXTEND_3) | ((text_border|THEN_EXTEND_3) << 16); // 8 pixels per word
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sl_pos++;
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}
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sl1->length = sl_pos;
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sl1->repeat_count = 7;
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vga_submit_scanline(sl1);
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sl2->length = sl_pos;
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sl2->repeat_count = 7;
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vga_submit_scanline(sl2);
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}
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