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System/Libraries/Graphics2D: Add ctx->text()

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Alec Murphy 2025-04-04 20:14:39 -04:00
parent 356c16580c
commit e5342de633
1 changed files with 45 additions and 0 deletions
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45
System/Libraries/Graphics2D.HC
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@ -18,6 +18,7 @@ class @callable_context2d : @context2d
U32 (*peek)(I64 x, I64 y); U32 (*peek)(I64 x, I64 y);
@callable_context2d* (*plot)(I64 x, I64 y, U32 color); @callable_context2d* (*plot)(I64 x, I64 y, U32 color);
@callable_context2d* (*line)(I64 x1, I64 y1, I64 x2, I64 y2, U32 color); @callable_context2d* (*line)(I64 x1, I64 y1, I64 x2, I64 y2, U32 color);
@callable_context2d* (*text)(U64 font, I64 x, I64 y, I64 size, U32 color, U8* text);
@callable_context2d* (*clipped)(); @callable_context2d* (*clipped)();
@callable_context2d* (*rotated)(F64 angle); @callable_context2d* (*rotated)(F64 angle);
@callable_context2d* (*scaled)(F64 scale_x, F64 scale_y); @callable_context2d* (*scaled)(F64 scale_x, F64 scale_y);
@ -1123,6 +1124,30 @@ I64 Print2D(Context2D* ctx, BitmapFont* font, I64 x, I64 y,
return retval; return retval;
} }
U0 Text2D(Context2D* ctx, stbtt_fontinfo* font, I64 x, I64 y, I64 size, U32 color, U8* text)
{
if (!ctx || !ctx->width || !ctx->height || !font || !size || !text || !StrLen(text)) {
return;
}
Context2D* text_ctx = NewContext2D(ctx->width, ctx->height);
CDC* dc = DCNew(ctx->width, ctx->height);
Free(dc->body);
dc->body = @stbtt_RenderText(font, dc->width_internal, dc->height, ToI64(size * 1.5), text);
I64 text_x, text_y, text_c;
for (text_y = 0; text_y < dc->height; text_y++) {
for (text_x = 0; text_x < dc->width; text_x++) {
text_c = GrPeek(dc, text_x, text_y);
if (text_c) {
color.u8[3] = text_c;
text_ctx->plot(x + text_x, y + text_y, color);
}
}
}
BlendRect2D(text_ctx, ctx);
DelContext2D(text_ctx);
DCDel(dc);
}
Context2D* FastBoxBlur2D(Context2D* img, I64 radius) Context2D* FastBoxBlur2D(Context2D* img, I64 radius)
{ {
/* /*
@ -1526,6 +1551,13 @@ U32 @c2d_peek_wrapper_function(I64 x, I64 y)
return ctx; return ctx;
} }
@callable_context2d* @c2d_text_wrapper_function(U64 font, I64 x, I64 y, I64 size, U32 color, U8* text)
{
Context2D* ctx = C2D_MAGIC;
Text2D(ctx, font, x, y, size, color, text);
return ctx;
}
@callable_context2d* @c2d_clipped_wrapper_function() @callable_context2d* @c2d_clipped_wrapper_function()
{ {
Context2D* ctx = C2D_MAGIC; Context2D* ctx = C2D_MAGIC;
@ -1657,6 +1689,19 @@ U32 @c2d_peek_wrapper_function(I64 x, I64 y)
a += 0x3a; a += 0x3a;
@patch_call_rel32(a, &Line2D); @patch_call_rel32(a, &Line2D);
// text
code_size = MSize(&@c2d_text_wrapper_function);
res->text = CAlloc(code_size, Fs->code_heap);
MemCpy(res->text, &@c2d_text_wrapper_function, code_size);
a = res->text;
a += 0x2e;
MemSetI64(a, res, 1);
a = res->text;
a += 0x42;
@patch_call_rel32(a, &Text2D);
// clipped // clipped
code_size = MSize(&@c2d_clipped_wrapper_function); code_size = MSize(&@c2d_clipped_wrapper_function);
res->clipped = CAlloc(code_size, Fs->code_heap); res->clipped = CAlloc(code_size, Fs->code_heap);