new rendering

4ed_color_view.cpp

@@ -338,10 +338,10 @@ do_single_slider(i32 sub_id, Color_UI *ui, i32 channel, bool32 is_rgba,
         
         x = lerp(slider.x0, color.v[channel], slider.x1);
         draw_rectangle(
-            target, real32R(x, slider.y0, x + 1, slider.y1), 0xff000000);
+            target, f32R(x, slider.y0, x + 1, slider.y1), 0xff000000);
         
         draw_rectangle(
-            target, real32R(x-2, click_box.y0, x+3, slider.y0-4), 0xff777777);
+            target, f32R(x-2, click_box.y0, x+3, slider.y0-4), 0xff777777);
     }
 }
 
@@ -509,7 +509,7 @@ do_channel_field(i32 sub_id, Color_UI *ui, u8 *channel, Channel_Field_Type ftype
             }
         }
         else{
-            real32_Rect r = real32R(hit_region);
+            real32_Rect r = f32R(hit_region);
             r.x0 += indx*ui->hex_advance+1;
             r.x1 = r.x0+ui->hex_advance+1;
             draw_rectangle(target, r, back);
@@ -789,7 +789,7 @@ do_color_adjuster(Color_UI *ui, u32 *color,
         
         for (i32 i = 0; i < ArrayCount(ui->highlight.ids); ++i){
             if (ui->highlight.ids[i] == id){
-                draw_rectangle_outline(target, real32R(bar), text_color);
+                draw_rectangle_outline(target, f32R(bar), text_color);
                 break;
             }
         }

4ed_file_view.cpp

@@ -1959,106 +1959,44 @@ file_post_history(General_Memory *general, Editing_File *file,
 }
 
 inline Full_Cursor
-make_hint(i32 line_index, i32 *starts, i32 font_height, f32 *wrap_ys){
-    Full_Cursor hint;
-    hint.pos = starts[line_index];
-    hint.line = line_index + 1;
-    hint.character = 1;
-    hint.unwrapped_y = (f32)(line_index * font_height);
-    hint.unwrapped_x = 0;
-    hint.wrapped_y = wrap_ys[line_index];
-    hint.wrapped_x = 0;
-    return hint;
-}
-
-internal Full_Cursor
 view_compute_cursor_from_pos(File_View *view, i32 pos){
     Editing_File *file = view->file;
     Style *style = view->style;
     Font *font = style->font;
     
-    i32 *lines = file->buffer.line_starts;
-    
-    i32 line_index = buffer_get_line_index(&file->buffer, pos, 0, file->buffer.line_count);
-    
-    Full_Cursor result = make_hint(line_index, lines, font->height, view->line_wrap_y);
-    
     real32 max_width = view_compute_width(view);
     Opaque_Font_Advance opad = get_opaque_font_advance(font);
     
-    result = buffer_cursor_seek(&file->buffer, seek_pos(pos),
-                                max_width, (float)font->height,
-                                opad.data, opad.stride, result);
-    
-    return result;
+    return buffer_cursor_from_pos(&file->buffer, pos, view->line_wrap_y,
+                                  max_width, (real32)font->height, opad.data, opad.stride);
 }
 
-internal Full_Cursor
+inline Full_Cursor
 view_compute_cursor_from_unwrapped_xy(File_View *view, real32 seek_x, real32 seek_y,
                                       bool32 round_down = 0){
     Editing_File *file = view->file;
     Style *style = view->style;
     Font *font = style->font;
     
-    i32 line_index = FLOOR32(seek_y / font->height);
-    if (line_index >= file->buffer.line_count) line_index = file->buffer.line_count - 1;
-    if (line_index < 0) line_index = 0;
-    
-    Full_Cursor result = make_hint(line_index, file->buffer.line_starts, font->height, view->line_wrap_y);
-    
     real32 max_width = view_compute_width(view);
     Opaque_Font_Advance opad = get_opaque_font_advance(font);
     
-    result = buffer_cursor_seek(&file->buffer, seek_unwrapped_xy(seek_x, seek_y, round_down),
-                                max_width, (float)font->height,
-                                opad.data, opad.stride, result);
-    
-    return result;
+    return buffer_cursor_from_unwrapped_xy(&file->buffer, seek_x, seek_y, round_down, view->line_wrap_y,
+                                           max_width, (real32)font->height, opad.data, opad.stride);
 }
 
-internal Full_Cursor
+inline Full_Cursor
 view_compute_cursor_from_wrapped_xy(File_View *view, real32 seek_x, real32 seek_y,
                                     bool32 round_down = 0){
     Editing_File *file = view->file;
     Style *style = view->style;
     Font *font = style->font;
-    real32 line_height = (real32)font->height;
-    
-    real32 *line_wrap = view->line_wrap_y;
-    i32 line_index;
-    // NOTE(allen): binary search lines on wrapped y position
-    {
-        i32 start = 0;
-        i32 end = view->line_count;
-        while (1){
-            i32 i = (start + end) / 2;
-            if (line_wrap[i]+line_height <= seek_y){
-                start = i;
-            }
-            else if (line_wrap[i] > seek_y){
-                end = i;
-            }
-            else{
-                line_index = i;
-                break;
-            }
-            if (start >= end - 1){
-                line_index = start;
-                break;
-            }
-        }
-    }
-    
-    Full_Cursor result = make_hint(line_index, file->buffer.line_starts, font->height, line_wrap);
     
     real32 max_width = view_compute_width(view);
     Opaque_Font_Advance opad = get_opaque_font_advance(font);
     
-    result = buffer_cursor_seek(&file->buffer, seek_wrapped_xy(seek_x, seek_y, round_down),
-                                max_width, (real32)font->height,
-                                opad.data, opad.stride, result);
-    
-    return result;
+    return buffer_cursor_from_wrapped_xy(&file->buffer, seek_x, seek_y, round_down, view->line_wrap_y,
+                                         max_width, (real32)font->height, opad.data, opad.stride);
 }
 
 inline Full_Cursor
@@ -3524,6 +3462,93 @@ draw_file_view(Thread_Context *thread, View *view_, i32_Rect rect, bool32 is_act
     
     Assert(file && file->buffer.data && !file->is_dummy);
     
+    Opaque_Font_Advance opad = get_opaque_font_advance(font);
+    b32 tokens_use = file->tokens_complete && (file->token_stack.count > 0);
+    Cpp_Token_Stack token_stack = file->token_stack;
+
+#if 1
+    Partition *part = &view_->mem->part;
+    Temp_Memory temp = begin_temp_memory(part);
+
+    partition_align(part, 4);
+    i32 max = partition_remaining(part) / sizeof(Buffer_Render_Item);
+    Buffer_Render_Item *items = push_array(part, Buffer_Render_Item, max);
+
+    i32 count;
+    buffer_get_render_data(&file->buffer, view->line_wrap_y, items, max, &count,
+                           (real32)rect.x0, (real32)rect.y0, view->scroll_x, view->scroll_y, view->unwrapped_lines,
+                           (real32)max_x, (real32)max_y, opad.data, opad.stride, (real32)font->height);
+    Assert(count > 0);
+    
+    i32 cursor_begin, cursor_end;
+    u32 cursor_color, at_cursor_color;
+    if (view->show_temp_highlight){
+        cursor_begin = view->temp_highlight.pos;
+        cursor_end = view->temp_highlight_end_pos;
+        cursor_color = style->main.highlight_color;
+        at_cursor_color = style->main.at_highlight_color;
+    }
+    else{
+        cursor_begin = view->cursor.pos;
+        cursor_end = cursor_begin + 1;
+        cursor_color = style->main.cursor_color;
+        at_cursor_color = style->main.at_cursor_color;
+    }
+
+    i32 token_i = 0;
+    u32 main_color = style->main.default_color;
+    if (tokens_use){
+        Cpp_Get_Token_Result result = cpp_get_token(&token_stack, items->index);
+        main_color = *style_get_color(style, token_stack.tokens[result.token_index]);
+        token_i = result.token_index + 1;
+    }
+
+    u32 mark_color = style->main.mark_color;
+    Buffer_Render_Item *item = items;
+    i32 prev_ind = -1;
+    for (i32 i = 0; i < count; ++i, ++item){
+        i32 ind = item->index;
+        if (tokens_use && ind != prev_ind){
+            Cpp_Token current_token = token_stack.tokens[token_i-1];
+            
+            if (token_i < token_stack.count){
+                if (ind >= token_stack.tokens[token_i].start){
+                    main_color =
+                        *style_get_color(style, token_stack.tokens[token_i]);
+                    current_token = token_stack.tokens[token_i];
+                    ++token_i;
+                }
+                else if (ind >= current_token.start + current_token.size){
+                    main_color = 0xFFFFFFFF;
+                }
+            }
+
+#if 0
+            if (current_token.type == CPP_TOKEN_JUNK &&
+                i >= current_token.start && i <= current_token.start + current_token.size){
+                highlight_color = style->main.highlight_junk_color;
+            }
+#endif
+        }
+        u32 char_color = main_color;
+        
+        if (cursor_begin <= ind && ind < cursor_end && (ind != prev_ind || cursor_begin < ind)){
+            if (is_active) draw_rectangle(target, f32R(item->x0, item->y0, item->x1, item->y1), cursor_color);
+            else draw_rectangle_outline(target, f32R(item->x0, item->y0, item->x1, item->y1), cursor_color);
+            char_color = at_cursor_color;
+        }
+        if (ind == view->mark && prev_ind != ind){
+            draw_rectangle_outline(target, f32R(item->x0, item->y0, item->x1, item->y1), mark_color);
+        }
+        font_draw_glyph(target, font, (u16)item->glyphid,
+                        item->x0, item->y0, char_color);
+        prev_ind = ind;
+    }
+    
+    end_temp_memory(temp);
+    
+#else
+    
     i32 size = (i32)file->buffer.size;
     u8 *data = (u8*)file->buffer.data;
     
@@ -3541,11 +3566,9 @@ draw_file_view(Thread_Context *thread, View *view_, i32_Rect rect, bool32 is_act
     real32 pos_x = 0;
     real32 pos_y = 0;
     
-    Cpp_Token_Stack token_stack = file->token_stack;
     u32 highlight_color = 0;
     u32 main_color = style->main.default_color;
     i32 token_i = 0;
-    bool32 tokens_use = file->tokens_complete && (file->token_stack.count > 0);
     
     if (tokens_use){
         Cpp_Get_Token_Result result = cpp_get_token(&token_stack, start_character);
@@ -3554,9 +3577,7 @@ draw_file_view(Thread_Context *thread, View *view_, i32_Rect rect, bool32 is_act
         main_color = *style_get_color(style, token_stack.tokens[token_i]);
         ++token_i;
     }
-    
-    Opaque_Font_Advance opad = get_opaque_font_advance(font);
-    
+
     data[size] = 0;
     for (i32 i = start_character; i <= size; ++i){
         u8 to_render;
@@ -3602,17 +3623,15 @@ draw_file_view(Thread_Context *thread, View *view_, i32_Rect rect, bool32 is_act
         if (highlight_color == 0 && view->show_whitespace && char_is_whitespace(data[i])){
             highlight_color = style->main.highlight_white_color;
         }
-            
+        
         i32 cursor_mode = 0;
         if (view->show_temp_highlight){
-            if (view->temp_highlight.pos <= i && i < view->temp_highlight_end_pos){
+            if (view->temp_highlight.pos <= i && i < view->temp_highlight_end_pos)
                 cursor_mode = 2;
-            }
         }
         else{
-            if (view->cursor.pos == i){
+            if (view->cursor.pos == i)
                 cursor_mode = 1;
-            }
         }
         
         real32_Rect cursor_rect =
@@ -3646,7 +3665,7 @@ draw_file_view(Thread_Context *thread, View *view_, i32_Rect rect, bool32 is_act
         if (i == view->mark){
             draw_rectangle_outline(target, cursor_rect, style->main.mark_color);
         }
-            
+        
         u32 char_color = main_color;
         u32 special_char_color = main_color;
         if (to_render == '\r'){
@@ -3705,6 +3724,7 @@ draw_file_view(Thread_Context *thread, View *view_, i32_Rect rect, bool32 is_act
             break;
         }
     }
+#endif
     
     if (view->widget.type != FWIDG_NONE){
         UI_Style ui_style = get_ui_style_upper(style);

4ed_math.cpp

@@ -93,8 +93,8 @@ struct i32_Rect{
 };
 
 struct real32_Rect{
-	real32 x0, y0;
-	real32 x1, y1;
+	f32 x0, y0;
+	f32 x1, y1;
 };
 
 inline i32_Rect
@@ -124,7 +124,7 @@ i32XYWH(i32 x, i32 y, i32 w, i32 h){
 }
 
 inline real32_Rect
-real32R(real32 l, real32 t, real32 r, real32 b){
+f32R(real32 l, real32 t, real32 r, real32 b){
     real32_Rect rect;
     rect.x0 = l; rect.y0 = t;
     rect.x1 = r; rect.y1 = b;
@@ -132,7 +132,7 @@ real32R(real32 l, real32 t, real32 r, real32 b){
 }
 
 inline real32_Rect
-real32R(i32_Rect r){
+f32R(i32_Rect r){
     real32_Rect rect;
     rect.x0 = (real32)r.x0;
     rect.y0 = (real32)r.y0;
@@ -142,7 +142,7 @@ real32R(i32_Rect r){
 }
 
 inline real32_Rect
-real32XYWH(real32 x, real32 y, real32 w, real32 h){
+f32XYWH(f32 x, f32 y, f32 w, f32 h){
     real32_Rect rect;
     rect.x0 = x; rect.y0 = y;
     rect.x1 = x+w; rect.y1 = y+h;

4ed_rendering.cpp

@@ -620,7 +620,7 @@ draw_gradient_2corner_clipped(Render_Target *target, real32_Rect rect,
 inline void
 draw_gradient_2corner_clipped(Render_Target *target, real32 l, real32 t, real32 r, real32 b,
                               Vec4 color_left, Vec4 color_right){
-    draw_gradient_2corner_clipped(target, real32R(l,t,r,b), color_left, color_right);
+    draw_gradient_2corner_clipped(target, f32R(l,t,r,b), color_left, color_right);
 }
 
 internal void
@@ -646,7 +646,7 @@ draw_rectangle_outline(Render_Target *target, real32_Rect rect, u32 color){
 
 inline void
 draw_rectangle_outline(Render_Target *target, i32_Rect rect, u32 color){
-    draw_rectangle_outline(target, real32R(rect), color);
+    draw_rectangle_outline(target, f32R(rect), color);
 }
 
 internal void

buffer/4coder_golden_array.cpp

@@ -214,6 +214,7 @@ measure_character(void *advance_data, int stride, char character){
     
     advances = (char*)advance_data;
     switch (character){
+    case 0: width = *(float*)(advances + stride * '\\') + *(float*)(advances + stride * '0'); break;
     case '\n': width = 0; break;
     case '\r': width = *(float*)(advances + stride * '\\') + *(float*)(advances + stride * '\r'); break;
     default: width = *(float*)(advances + stride * character);
@@ -465,8 +466,8 @@ typedef struct{
 } Full_Cursor;
 
 internal_4tech Full_Cursor
-buffer_cursor_seek(Buffer *buffer, Buffer_Seek seek,
-                   float max_width, float font_height, void *advance_data, int stride, Full_Cursor cursor){
+buffer_cursor_seek(Buffer *buffer, Buffer_Seek seek, float max_width, float font_height,
+                   void *advance_data, int stride, Full_Cursor cursor){
     Full_Cursor prev_cursor;
     char *data, *advances;
     int size;
@@ -578,6 +579,82 @@ buffer_cursor_seek(Buffer *buffer, Buffer_Seek seek,
     return(cursor);
 }
 
+inline_4tech Full_Cursor
+make_cursor_hint(int line_index, int *starts, float *wrap_ys, float font_height){
+    Full_Cursor hint;
+    hint.pos = starts[line_index];
+    hint.line = line_index + 1;
+    hint.character = 1;
+    hint.unwrapped_y = (f32)(line_index * font_height);
+    hint.unwrapped_x = 0;
+    hint.wrapped_y = wrap_ys[line_index];
+    hint.wrapped_x = 0;
+    return(hint);
+}
+
+internal_4tech Full_Cursor
+buffer_cursor_from_pos(Buffer *buffer, int pos, float *wraps,
+                       float max_width, float font_height, void *advance_data, int stride){
+    Full_Cursor result;
+    int line_index;
+
+    line_index = buffer_get_line_index(buffer, pos, 0, buffer->line_count);
+    result = make_cursor_hint(line_index, buffer->line_starts, wraps, font_height);
+    result = buffer_cursor_seek(buffer, seek_pos(pos), max_width, font_height,
+                                advance_data, stride, result);
+
+    return(result);
+}
+
+internal_4tech Full_Cursor
+buffer_cursor_from_unwrapped_xy(Buffer *buffer, float x, float y, int round_down, float *wraps,
+                                float max_width, float font_height, void *advance_data, int stride){
+    Full_Cursor result;
+    int line_index;
+
+    line_index = (int)(y / font_height);
+    if (line_index >= buffer->line_count) line_index = buffer->line_count - 1;
+    if (line_index < 0) line_index = 0;
+
+    result = make_cursor_hint(line_index, buffer->line_starts, wraps, font_height);
+    result = buffer_cursor_seek(buffer, seek_unwrapped_xy(x, y, round_down), max_width, font_height,
+                                advance_data, stride, result);
+
+    return(result);
+}
+
+internal_4tech Full_Cursor
+buffer_cursor_from_wrapped_xy(Buffer *buffer, float x, float y, int round_down, float *wraps,
+                              float max_width, float font_height, void *advance_data, int stride){
+    Full_Cursor result;
+    int line_index;
+    int start, end, i;
+
+    // NOTE(allen): binary search lines on wrapped y position
+    // TODO(allen): pull this out once other wrap handling code is ready
+    start = 0;
+    end = buffer->line_count;
+    for (;;){
+        i = (start + end) / 2;
+        if (wraps[i]+font_height <= y) start = i;
+        else if (wraps[i] > y) end = i;
+        else{
+            line_index = i;
+            break;
+        }
+        if (start >= end - 1){
+            line_index = start;
+            break;
+        }
+    }
+
+    result = make_cursor_hint(line_index, buffer->line_starts, wraps, font_height);
+    result = buffer_cursor_seek(buffer, seek_wrapped_xy(x, y, round_down), max_width, font_height,
+                                advance_data, stride, result);
+
+    return(result);
+}
+
 typedef struct{
     int str_start, len;
     int start, end;
@@ -839,5 +916,166 @@ buffer_eol_convert_out(Buffer *buffer){
     buffer->size = size;
 }
 
+typedef struct{
+    int index;
+    int glyphid;
+    float x0, y0;
+    float x1, y1;
+} Buffer_Render_Item;
+
+internal_4tech void
+buffer_get_render_data(Buffer *buffer, float *wraps, Buffer_Render_Item *items, int max, int *count,
+                       float port_x, float port_y, float scroll_x, float scroll_y, int wrapped,
+                       float width, float height, void *advance_data, int stride, float font_height){
+    Full_Cursor start_cursor;
+    Buffer_Render_Item *item;
+    char *data;
+    int size;
+    float shift_x, shift_y;
+    float x, y;
+    int i, item_i;
+    float ch_width;
+    char ch;
+
+    data = buffer->data;
+    size = buffer->size;
+    assert_4tech(size < buffer->max);
+    data[size] = 0;
+
+    shift_x = port_x - scroll_x;
+    shift_y = port_y - scroll_y;
+    if (wrapped){
+        start_cursor = buffer_cursor_from_wrapped_xy(buffer, 0, scroll_y, 0, wraps,
+                                                     width, font_height, advance_data, stride);
+        shift_y += start_cursor.wrapped_y;
+    }
+    else{
+        start_cursor = buffer_cursor_from_unwrapped_xy(buffer, 0, scroll_y, 0, wraps,
+                                                       width, font_height, advance_data, stride);
+        shift_y += start_cursor.unwrapped_y;
+    }
+
+    i = start_cursor.pos;
+
+    x = shift_x;
+    y = shift_y;
+    item_i = 0;
+    item = items + item_i;
+
+    for (; i <= size; ++i){
+        ch = data[i];
+        ch_width = measure_character(advance_data, stride, ch);
+
+        if (ch_width + x > width + shift_x && wrapped){
+            x = shift_x;
+            y += font_height;
+        }
+        if (y > height + shift_y) break;
+
+        switch (ch){
+        case '\n':
+            ch_width = measure_character(advance_data, stride, ' ');
+            item->index = i;
+            item->glyphid = ' ';
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + ch_width;
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+
+            x = shift_x;
+            y += font_height;
+            break;
+
+        case 0:
+            ch_width = measure_character(advance_data, stride, '\\');
+            item->index = i;
+            item->glyphid = '\\';
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + ch_width;
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+            x += ch_width;
+
+            ch_width = measure_character(advance_data, stride, '0');
+            item->index = i;
+            item->glyphid = '0';
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + ch_width;
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+            x += ch_width;
+            break;
+
+        case '\r':
+            ch_width = measure_character(advance_data, stride, '\\');
+            item->index = i;
+            item->glyphid = '\\';
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + ch_width;
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+            x += ch_width;
+
+            ch_width = measure_character(advance_data, stride, 'r');
+            item->index = i;
+            item->glyphid = 'r';
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + ch_width;
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+            x += ch_width;
+            break;
+
+        case '\t':
+            item->index = i;
+            item->glyphid = '\\';
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + measure_character(advance_data, stride, '\\');
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+
+            item->index = i;
+            item->glyphid = 't';
+            item->x0 = (item-1)->x1;
+            item->y0 = y;
+            item->x1 = item->x0 + measure_character(advance_data, stride, 't');
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+            x += ch_width;
+            break;
+
+        default:
+            item->index = i;
+            item->glyphid = ch;
+            item->x0 = x;
+            item->y0 = y;
+            item->x1 = x + ch_width;
+            item->y1 = y + font_height;
+            ++item_i;
+            ++item;
+            x += ch_width;
+            break;
+        }
+        if (y > height + shift_y) break;
+    }
+
+    // TODO(allen): handle this with a control state
+    assert_4tech(item_i <= max);
+    *count = item_i;
+}
+
 // BOTTOM