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add untested implementation of text scale

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This commit is contained in:
Dennis Ranke
2024-04-07 23:59:14 +02:00
parent d4bad3ba8b
commit 4e18d38538
2 changed files with 31 additions and 20 deletions
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platform/bin/platform.uw8
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51
platform/src/platform.cwa
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@@ -447,6 +447,7 @@ global mut textCursorY = 0;
global mut textColor = 15; global mut textColor = 15;
global mut bgColor = 0; global mut bgColor = 0;
global mut outputChannel = 0; global mut outputChannel = 0;
global mut textScale = 1;
export fn printChar(char: i32) { export fn printChar(char: i32) {
loop chars { loop chars {
@@ -458,6 +459,8 @@ export fn printChar(char: i32) {
global mut controlCodeLength = 0; global mut controlCodeLength = 0;
fn printSingleChar(char: i32) { fn printSingleChar(char: i32) {
let charSize = 8 * textScale;
if outputChannel >= 2 & (char < 4 | char > 6) { if outputChannel >= 2 & (char < 4 | char > 6) {
logChar(char); logChar(char);
return; return;
@@ -491,9 +494,9 @@ fn printSingleChar(char: i32) {
} }
if char == 8 { if char == 8 {
textCursorX = textCursorX - 8; textCursorX = textCursorX - charSize;
if !outputChannel & textCursorX < 0 { if !outputChannel & textCursorX < 0 {
textCursorX = 320-8; textCursorX = 320-charSize;
printSingleChar(11); printSingleChar(11);
} }
return; return;
@@ -503,34 +506,34 @@ fn printSingleChar(char: i32) {
if !outputChannel & textCursorX >= 320 { if !outputChannel & textCursorX >= 320 {
printChar(0xd0a); printChar(0xd0a);
} }
textCursorX = textCursorX + 8; textCursorX = textCursorX + charSize;
return; return;
} }
if char == 10 { if char == 10 {
textCursorY = textCursorY + 8; textCursorY = textCursorY + charSize;
if !outputChannel & textCursorY >= 240 { if !outputChannel & textCursorY >= 240 {
textCursorY = 240 - 8; textCursorY = 240 - charSize;
let i: i32; let i: i32;
loop scroll_copy { loop scroll_copy {
i!120 = i!(120 + 320 * 8); i!120 = (i + 320 * charSize)!120;
branch_if (i := i + 4) < 320 * (240 - 8): scroll_copy; branch_if (i := i + 4) < 320 * (240 - charSize): scroll_copy;
} }
rectangle(0 as f32, (240 - 8) as f32, 320 as f32, 8 as f32, bgColor); rectangle(0 as f32, (240 - charSize) as f32, 320 as f32, charSize as f32, bgColor);
} }
return; return;
} }
if char == 11 { if char == 11 {
textCursorY = textCursorY - 8; textCursorY = textCursorY - charSize;
if !outputChannel & textCursorY < 0 { if !outputChannel & textCursorY < 0 {
textCursorY = 0; textCursorY = 0;
let i = 320 * (240 - 8); let i = 320 * (240 - charSize);
loop scroll_copy { loop scroll_copy {
i!(116 + 320 * 8) = i!116; (i + 320 * charSize)!116 = i!116;
branch_if (i := i - 4): scroll_copy; branch_if (i := i - 4): scroll_copy;
} }
rectangle(0 as f32, 0 as f32, 320 as f32, 8 as f32, bgColor); rectangle(0 as f32, 0 as f32, 320 as f32, charSize as f32, bgColor);
} }
return; return;
} }
@@ -562,6 +565,12 @@ fn printSingleChar(char: i32) {
return; return;
} }
if char == 30 {
let scale = 0x12d20?1;
textScale = select(scale > 0 & scale <= 16, scale, 1);
return;
}
if char == 31 { if char == 31 {
textCursorX = 0x12d20?1 * (8 - outputChannel * 6); textCursorX = 0x12d20?1 * (8 - outputChannel * 6);
textCursorY = 0x12d20?2 * (8 - outputChannel * 7); textCursorY = 0x12d20?2 * (8 - outputChannel * 7);
@@ -584,7 +593,7 @@ data(0x12d00) {
1, 1, 1, 1, // 16-19, 1, 1, 1, 1, // 16-19,
1, 1, 1, 1, // 20-23, 1, 1, 1, 1, // 20-23,
1, 1, 1, 1, // 24-27, 1, 1, 1, 1, // 24-27,
1, 1, 1, 3 // 28-31 1, 1, 2, 3 // 28-31
) )
} }
@@ -593,26 +602,28 @@ fn drawChar(char: i32) {
printChar(0xd0a); printChar(0xd0a);
} }
let charSize = 8 * textScale;
let y: i32; let y: i32;
loop rows { loop rows {
let bits = (char * 8 + y)?0x13400; let bits = (char * 8 + y / textScale)?0x13400;
let x = 0; let x = 0;
if outputChannel { if outputChannel {
loop pixels { loop pixels {
if (bits := bits << 1) & 256 { if (bits << (x / textScale)) & 128 {
setPixel(textCursorX + x, textCursorY + y, textColor); setPixel(textCursorX + x, textCursorY + y, textColor);
} }
branch_if (x := x + 1) < 8: pixels; branch_if (x := x + 1) < charSize: pixels;
} }
} else { } else {
loop pixels { loop pixels {
setPixel(textCursorX + x, textCursorY + y, select((bits := bits << 1) & 256, textColor, bgColor)); setPixel(textCursorX + x, textCursorY + y, select((bits << (x / textScale)) & 128, textColor, bgColor));
branch_if (x := x + 1) < 8: pixels; branch_if (x := x + 1) < charSize: pixels;
} }
} }
branch_if (y := y + 1) < 8: rows; branch_if (y := y + 1) < charSize: rows;
} }
textCursorX = textCursorX + 8; textCursorX = textCursorX + charSize;
} }
export fn printString(ptr: i32) { export fn printString(ptr: i32) {