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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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51
platform/src/platform.cwa
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@@ -447,6 +447,7 @@ global mut textCursorY = 0;
global mut textColor = 15;
global mut bgColor = 0;
global mut outputChannel = 0;
global mut textScale = 1;
export fn printChar(char: i32) {
loop chars {
@@ -458,6 +459,8 @@ export fn printChar(char: i32) {
global mut controlCodeLength = 0;
fn printSingleChar(char: i32) {
let charSize = 8 * textScale;
if outputChannel >= 2 & (char < 4 | char > 6) {
logChar(char);
return;
@@ -491,9 +494,9 @@ fn printSingleChar(char: i32) {
}
if char == 8 {
textCursorX = textCursorX - 8;
textCursorX = textCursorX - charSize;
if !outputChannel & textCursorX < 0 {
textCursorX = 320-8;
textCursorX = 320-charSize;
printSingleChar(11);
}
return;
@@ -503,34 +506,34 @@ fn printSingleChar(char: i32) {
if !outputChannel & textCursorX >= 320 {
printChar(0xd0a);
}
textCursorX = textCursorX + 8;
textCursorX = textCursorX + charSize;
return;
}
if char == 10 {
textCursorY = textCursorY + 8;
textCursorY = textCursorY + charSize;
if !outputChannel & textCursorY >= 240 {
textCursorY = 240 - 8;
textCursorY = 240 - charSize;
let i: i32;
loop scroll_copy {
i!120 = i!(120 + 320 * 8);
branch_if (i := i + 4) < 320 * (240 - 8): scroll_copy;
i!120 = (i + 320 * charSize)!120;
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;
}
if char == 11 {
textCursorY = textCursorY - 8;
textCursorY = textCursorY - charSize;
if !outputChannel & textCursorY < 0 {
textCursorY = 0;
let i = 320 * (240 - 8);
let i = 320 * (240 - charSize);
loop scroll_copy {
i!(116 + 320 * 8) = i!116;
(i + 320 * charSize)!116 = i!116;
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;
}
@@ -562,6 +565,12 @@ fn printSingleChar(char: i32) {
return;
}
if char == 30 {
let scale = 0x12d20?1;
textScale = select(scale > 0 & scale <= 16, scale, 1);
return;
}
if char == 31 {
textCursorX = 0x12d20?1 * (8 - outputChannel * 6);
textCursorY = 0x12d20?2 * (8 - outputChannel * 7);
@@ -584,7 +593,7 @@ data(0x12d00) {
1, 1, 1, 1, // 16-19,
1, 1, 1, 1, // 20-23,
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);
}
let charSize = 8 * textScale;
let y: i32;
loop rows {
let bits = (char * 8 + y)?0x13400;
let bits = (char * 8 + y / textScale)?0x13400;
let x = 0;
if outputChannel {
loop pixels {
if (bits := bits << 1) & 256 {
if (bits << (x / textScale)) & 128 {
setPixel(textCursorX + x, textCursorY + y, textColor);
}
branch_if (x := x + 1) < 8: pixels;
branch_if (x := x + 1) < charSize: pixels;
}
} else {
loop pixels {
setPixel(textCursorX + x, textCursorY + y, select((bits := bits << 1) & 256, textColor, bgColor));
branch_if (x := x + 1) < 8: pixels;
setPixel(textCursorX + x, textCursorY + y, select((bits << (x / textScale)) & 128, textColor, bgColor));
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) {