4coder/4ed_rendering_helper.cpp

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/*
* Mr. 4th Dimention - Allen Webster
*
* 12.17.2014
*
* Rendering layer for project codename "4ed"
*
*/
// TOP
inline void
draw_push_clip(Render_Target *target, i32_Rect clip_box){
target->push_clip(target, clip_box);
}
inline void
draw_pop_clip(Render_Target *target){
target->pop_clip(target);
}
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internal void
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begin_render_section(Render_Target *target, System_Functions *system){
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Font_Set *font_set = &target->font_set;
font_set->used_this_frame = 0;
memset(font_set->font_used_flags, 0, font_set->max);
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target->size = 0;
system->acquire_lock(RENDER_LOCK);
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}
internal void
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end_render_section(Render_Target *target, System_Functions *system){
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//Font_Set *font_set = &target->font_set;
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system->release_lock(RENDER_LOCK);
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}
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internal void
draw_rectangle(Render_Target *target, i32_Rect rect, u32 color){
Render_Piece_Combined piece;
piece.header.type = piece_type_rectangle;
piece.rectangle.rect = f32R(rect);
piece.rectangle.color = color;
target->push_piece(target, piece);
}
internal void
draw_rectangle(Render_Target *target, f32_Rect rect, u32 color){
Render_Piece_Combined piece;
piece.header.type = piece_type_rectangle;
piece.rectangle.rect = rect;
piece.rectangle.color = color;
target->push_piece(target, piece);
}
internal void
draw_gradient_2corner_clipped(Render_Target *target, f32_Rect rect,
Vec4 left_color, Vec4 right_color){
Render_Piece_Combined piece;
piece.header.type = piece_type_gradient;
piece.gradient.rect = rect;
piece.gradient.left_color = pack_color4(left_color);
piece.gradient.right_color = pack_color4(right_color);
target->push_piece(target, piece);
}
inline void
draw_gradient_2corner_clipped(Render_Target *target, f32 l, f32 t, f32 r, f32 b,
Vec4 color_left, Vec4 color_right){
draw_gradient_2corner_clipped(target, f32R(l,t,r,b), color_left, color_right);
}
internal void
draw_rectangle_outline(Render_Target *target, f32_Rect rect, u32 color){
Render_Piece_Combined piece;
piece.header.type = piece_type_outline;
piece.rectangle.rect = rect;
piece.rectangle.color = color;
target->push_piece(target, piece);
}
inline void
draw_rectangle_outline(Render_Target *target, i32_Rect rect, u32 color){
draw_rectangle_outline(target, f32R(rect), color);
}
internal void
draw_margin(Render_Target *target, i32_Rect outer, i32_Rect inner, u32 color){
draw_rectangle(target, i32R(outer.x0, outer.y0, outer.x1, inner.y0), color);
draw_rectangle(target, i32R(outer.x0, inner.y1, outer.x1, outer.y1), color);
draw_rectangle(target, i32R(outer.x0, inner.y0, inner.x0, inner.y1), color);
draw_rectangle(target, i32R(inner.x1, inner.y0, outer.x1, inner.y1), color);
}
inline internal i32
font_predict_size(i32 pt_size){
return pt_size*pt_size*128;
}
internal void
font_set_tabwidth(Render_Font *font, i32 tab_width){
font->chardata['\t'].xadvance *= font->chardata[' '].xadvance * tab_width;
}
internal void
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font_draw_glyph_mono(Render_Target *target, i16 font_id,
u8 character, f32 x, f32 y, f32 advance, u32 color){
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Render_Piece_Combined piece;
piece.header.type = piece_type_mono_glyph;
piece.glyph.pos.x = x;
piece.glyph.pos.y = y;
piece.glyph.color = color;
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piece.glyph.font_id = font_id;
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piece.glyph.character = character;
target->push_piece(target, piece);
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font_set_use(target->partition, &target->font_set, font_id);
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}
inline void
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font_draw_glyph_mono(Render_Target *target, i16 font_id,
u8 character, f32 x, f32 y, u32 color){
f32 advance = (f32)get_font_info(&target->font_set, font_id)->advance;
font_draw_glyph_mono(target, font_id, character, x, y, advance, color);
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}
internal void
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font_draw_glyph(Render_Target *target, i16 font_id,
u8 character, f32 x, f32 y, u32 color){
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Render_Piece_Combined piece;
piece.header.type = piece_type_glyph;
piece.glyph.pos.x = x;
piece.glyph.pos.y = y;
piece.glyph.color = color;
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piece.glyph.font_id = font_id;
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piece.glyph.character = character;
target->push_piece(target, piece);
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font_set_use(target->partition, &target->font_set, font_id);
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}
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inline f32
font_get_glyph_width(Render_Target *target, i16 font_id, u16 character){
Render_Font *font = get_font_info(&target->font_set, font_id)->font;
f32 result = 0.f;
if (font) result = font->chardata[character].xadvance;
return (result);
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}
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internal f32
font_string_width(Render_Target *target, i16 font_id, char *str){
f32 x = 0;
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for (i32 i = 0; str[i]; ++i){
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x += font_get_glyph_width(target, font_id, str[i]);
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}
return x;
}
internal i32
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draw_string(Render_Target *target, i16 font_id,
char *str, i32 x_, i32 y, u32 color){
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real32 x = (real32)x_;
for (i32 i = 0; str[i]; ++i){
char c = str[i];
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font_draw_glyph(target, font_id, c, x, (f32)y, color);
x += font_get_glyph_width(target, font_id, c);
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}
return CEIL32(x);
}
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internal f32
draw_string_mono(Render_Target *target, i16 font_id,
char *str, f32 x, f32 y, f32 advance, u32 color){
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for (i32 i = 0; str[i]; ++i){
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font_draw_glyph_mono(target, font_id, str[i],
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x, y, advance, color);
x += advance;
}
return x;
}
internal i32
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draw_string(Render_Target *target, i16 font_id,
String str, i32 x_, i32 y, u32 color){
f32 x = (f32)x_;
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for (i32 i = 0; i < str.size; ++i){
char c = str.str[i];
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font_draw_glyph(target, font_id, c,
x, (f32)y, color);
x += font_get_glyph_width(target, font_id, c);
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}
return CEIL32(x);
}
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internal f32
draw_string_mono(Render_Target *target, i16 font_id,
String str, f32 x, f32 y, f32 advance, u32 color){
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for (i32 i = 0; i < str.size; ++i){
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font_draw_glyph_mono(target, font_id,
str.str[i], x, y, advance, color);
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x += advance;
}
return x;
}
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internal f32
font_get_max_width(Font_Set *font_set, i16 font_id, char *characters){
Render_Font *font = get_font_info(font_set, font_id)->font;
f32 cx, x = 0;
if (font){
stbtt_packedchar *chardata = font->chardata;
for (i32 i = 0; characters[i]; ++i){
cx = chardata[characters[i]].xadvance;
if (x < cx) x = cx;
}
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}
return x;
}
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internal f32
font_get_string_width(Render_Target *target, i16 font_id, String string){
f32 result = 0;
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for (i32 i = 0; i < string.size; ++i){
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font_get_glyph_width(target, font_id, string.str[i]);
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}
return result;
}
// BOTTOM
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