268 lines
7.9 KiB
C++
268 lines
7.9 KiB
C++
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/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 12.17.2014
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*
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* Rendering layer for project codename "4ed"
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*
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*/
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// TOP
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inline void
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draw_push_clip(Render_Target *target, i32_Rect clip_box){
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target->push_clip(target, clip_box);
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}
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inline void
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draw_pop_clip(Render_Target *target){
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target->pop_clip(target);
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}
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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;
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system->acquire_lock(RENDER_LOCK);
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font_set->used_this_frame = 0;
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memset(font_set->font_used_flags, 0, font_set->max);
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target->size = 0;
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target->clip_top = -1;
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i32_Rect clip;
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clip.x0 = 0;
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clip.y0 = 0;
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clip.x1 = target->width;
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clip.y1 = target->height;
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draw_push_clip(target, clip);
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}
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internal void
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end_render_section(Render_Target *target, System_Functions *system){
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Assert(target->clip_top == 0);
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system->release_lock(RENDER_LOCK);
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}
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internal void
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draw_rectangle(Render_Target *target, i32_Rect rect, u32 color){
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Render_Piece_Combined piece;
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piece.header.type = piece_type_rectangle;
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piece.rectangle.rect = f32R(rect);
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piece.rectangle.color = color;
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target->push_piece(target, piece);
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}
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internal void
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draw_rectangle(Render_Target *target, f32_Rect rect, u32 color){
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Render_Piece_Combined piece;
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piece.header.type = piece_type_rectangle;
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piece.rectangle.rect = rect;
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piece.rectangle.color = color;
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target->push_piece(target, piece);
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}
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internal void
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draw_gradient_2corner_clipped(Render_Target *target, f32_Rect rect,
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Vec4 left_color, Vec4 right_color){
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Render_Piece_Combined piece;
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piece.header.type = piece_type_gradient;
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piece.gradient.rect = rect;
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piece.gradient.left_color = pack_color4(left_color);
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piece.gradient.right_color = pack_color4(right_color);
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target->push_piece(target, piece);
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}
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inline void
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draw_gradient_2corner_clipped(Render_Target *target, f32 l, f32 t, f32 r, f32 b,
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Vec4 color_left, Vec4 color_right){
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draw_gradient_2corner_clipped(target, f32R(l,t,r,b), color_left, color_right);
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}
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internal void
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draw_rectangle_outline(Render_Target *target, f32_Rect rect, u32 color){
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Render_Piece_Combined piece;
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piece.header.type = piece_type_outline;
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piece.rectangle.rect = rect;
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piece.rectangle.color = color;
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target->push_piece(target, piece);
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}
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inline void
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draw_rectangle_outline(Render_Target *target, i32_Rect rect, u32 color){
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draw_rectangle_outline(target, f32R(rect), color);
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}
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internal void
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draw_margin(Render_Target *target, i32_Rect outer, i32_Rect inner, u32 color){
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draw_rectangle(target, i32R(outer.x0, outer.y0, outer.x1, inner.y0), color);
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draw_rectangle(target, i32R(outer.x0, inner.y1, outer.x1, outer.y1), color);
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draw_rectangle(target, i32R(outer.x0, inner.y0, inner.x0, inner.y1), color);
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draw_rectangle(target, i32R(inner.x1, inner.y0, outer.x1, inner.y1), color);
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}
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inline void
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draw_margin(Render_Target *target, i32_Rect outer, i32 width, u32 color){
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i32_Rect inner = get_inner_rect(outer, width);
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draw_margin(target, outer, inner, color);
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}
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inline internal i32
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font_predict_size(i32 pt_size){
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return pt_size*pt_size*128;
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}
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internal void
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font_set_tabwidth(Render_Font *font, i32 tab_width){
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font->chardata['\t'].xadvance *= font->chardata[' '].xadvance * tab_width;
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}
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internal void
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font_draw_glyph_mono(Render_Target *target, i16 font_id,
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u8 character, f32 x, f32 y, f32 advance, u32 color){
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Render_Piece_Combined piece;
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piece.header.type = piece_type_mono_glyph;
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piece.glyph.pos.x = x;
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piece.glyph.pos.y = y;
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piece.glyph.color = color;
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piece.glyph.font_id = font_id;
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piece.glyph.character = character;
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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 void
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font_draw_glyph_mono(Render_Target *target, i16 font_id,
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u8 character, f32 x, f32 y, u32 color){
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f32 advance = (f32)get_font_info(&target->font_set, font_id)->advance;
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font_draw_glyph_mono(target, font_id, character, x, y, advance, color);
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}
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internal void
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font_draw_glyph(Render_Target *target, i16 font_id,
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u8 character, f32 x, f32 y, u32 color){
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Render_Piece_Combined piece;
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piece.header.type = piece_type_glyph;
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piece.glyph.pos.x = x;
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piece.glyph.pos.y = y;
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piece.glyph.color = color;
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piece.glyph.font_id = font_id;
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piece.glyph.character = character;
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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
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font_get_glyph_width(Render_Target *target, i16 font_id, u16 character){
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Render_Font *font = get_font_info(&target->font_set, font_id)->font;
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f32 result = 0.f;
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if (font) result = font->chardata[character].xadvance;
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return (result);
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}
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internal f32
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font_string_width(Render_Target *target, i16 font_id, char *str){
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f32 x = 0;
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for (i32 i = 0; str[i]; ++i){
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u8 c = str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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x += font_get_glyph_width(target, font_id, c);
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}
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return x;
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}
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internal f32
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font_string_width(Render_Target *target, i16 font_id, String str){
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f32 x = 0;
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for (i32 i = 0; i < str.size; ++i){
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u8 c = str.str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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x += font_get_glyph_width(target, font_id, c);
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}
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return x;
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}
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internal i32
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draw_string(Render_Target *target, i16 font_id,
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char *str, i32 x_, i32 y, u32 color){
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real32 x = (real32)x_;
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for (i32 i = 0; str[i]; ++i){
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u8 c = str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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font_draw_glyph(target, font_id, c, x, (f32)y, color);
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x += font_get_glyph_width(target, font_id, c);
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}
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return CEIL32(x);
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}
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internal f32
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draw_string_mono(Render_Target *target, i16 font_id,
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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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u8 c = str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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font_draw_glyph_mono(target, font_id, c, x, y, advance, color);
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x += advance;
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}
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return x;
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}
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internal i32
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draw_string(Render_Target *target, i16 font_id,
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String str, i32 x_, i32 y, u32 color){
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f32 x = (f32)x_;
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for (i32 i = 0; i < str.size; ++i){
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u8 c = str.str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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font_draw_glyph(target, font_id, c,
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x, (f32)y, color);
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x += font_get_glyph_width(target, font_id, c);
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}
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return CEIL32(x);
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}
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internal f32
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draw_string_mono(Render_Target *target, i16 font_id,
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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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u8 c = str.str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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font_draw_glyph_mono(target, font_id, c, x, y, advance, color);
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x += advance;
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}
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return x;
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}
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internal f32
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font_get_max_width(Font_Set *font_set, i16 font_id, char *characters){
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Render_Font *font = get_font_info(font_set, font_id)->font;
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f32 cx, x = 0;
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if (font){
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stbtt_packedchar *chardata = font->chardata;
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for (i32 i = 0; characters[i]; ++i){
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cx = chardata[characters[i]].xadvance;
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if (x < cx) x = cx;
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}
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}
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return x;
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}
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internal f32
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font_get_string_width(Render_Target *target, i16 font_id, String string){
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f32 result = 0;
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for (i32 i = 0; i < string.size; ++i){
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u8 c = string.str[i];
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// TODO(allen): Someday let's not punt on the the unicode rendering
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c = c % 128;
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font_get_glyph_width(target, font_id, c);
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}
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return result;
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}
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// BOTTOM
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