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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** Display Management (Display) */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_system.h" |
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#include "gx_utility.h" |
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#include "gx_display.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_display_driver_generic_glyph_8bit_draw PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function draws the specified text using the current context, */ |
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/* clipped to one viewport */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* context Draw context */ |
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/* draw_position The X and Y coordinate where */ |
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/* the glyph is drawn to */ |
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/* string String to draw */ |
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/* count Count of string characters */ |
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/* view view to clip drawing within */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* [gx_display_driver_pixel_blend] Call display driver pixel */ |
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/* blend function */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* GUIX internal code */ |
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/* */ |
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/**************************************************************************/ |
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4668470 |
VOID _gx_display_driver_generic_glyph_8bit_draw(GX_DRAW_CONTEXT *context, GX_RECTANGLE *draw_area, GX_POINT *map_offset, GX_CONST GX_GLYPH *glyph) |
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{ |
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GX_DISPLAY *display; |
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GX_UBYTE *glyph_row; |
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GX_UBYTE *glyph_data; |
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UINT row; |
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UINT col; |
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4668470 |
UINT pixel_width = 0; |
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GX_COLOR text_color; |
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UINT y_height; |
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GX_UBYTE alpha1; |
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4668470 |
GX_UBYTE brush_alpha = 0xff; |
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#if defined (GX_BRUSH_ALPHA_SUPPORT) |
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4668470 |
brush_alpha = context -> gx_draw_context_brush.gx_brush_alpha; |
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✓✓ |
4668470 |
if (brush_alpha == 0) |
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{ |
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return; |
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} |
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#endif |
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4666594 |
text_color = context -> gx_draw_context_brush.gx_brush_line_color; |
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4666594 |
pixel_width = (UINT)(draw_area -> gx_rectangle_right - draw_area -> gx_rectangle_left + 1); |
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/* pickup pointer to current display driver */ |
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4666594 |
display = context -> gx_draw_context_display; |
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✓✓ |
4666594 |
if (display -> gx_display_driver_pixel_blend == GX_NULL) |
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{ |
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return; |
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} |
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4657641 |
glyph_row = (GX_UBYTE *)glyph -> gx_glyph_map; |
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✓✓ |
4657641 |
if (map_offset -> gx_point_y) |
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{ |
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glyph_row = glyph_row + (glyph -> gx_glyph_width * map_offset -> gx_point_y); |
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} |
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4657641 |
glyph_row += map_offset -> gx_point_x; |
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4657641 |
y_height = (UINT)(draw_area -> gx_rectangle_bottom - draw_area -> gx_rectangle_top + 1); |
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✓✓ |
4657641 |
if (brush_alpha == 0xff) |
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{ |
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✓✓ |
50786456 |
for (row = 0; row < y_height; row++) |
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{ |
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46558140 |
glyph_data = glyph_row; |
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✓✓ |
404973557 |
for (col = 0; col < pixel_width; col++) |
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{ |
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358415417 |
alpha1 = *glyph_data; |
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✓✓ |
358415417 |
if (alpha1 > 0) |
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{ |
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213772112 |
display -> gx_display_driver_pixel_blend(context, |
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213772112 |
draw_area -> gx_rectangle_left + (GX_VALUE)col, |
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213772112 |
draw_area -> gx_rectangle_top + (GX_VALUE)row, |
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text_color, (GX_UBYTE)alpha1); |
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} |
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358415417 |
glyph_data++; |
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} |
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46558140 |
glyph_row += glyph -> gx_glyph_width; |
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} |
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} |
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#if defined (GX_BRUSH_ALPHA_SUPPORT) |
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else |
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{ |
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✓✓ |
5210071 |
for (row = 0; row < y_height; row++) |
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{ |
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4780746 |
glyph_data = glyph_row; |
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✓✓ |
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for (col = 0; col < pixel_width; col++) |
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{ |
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37209081 |
alpha1 = *glyph_data; |
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alpha1 = (GX_UBYTE)(alpha1 * brush_alpha / 255); |
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✓✓ |
37209081 |
if (alpha1 > 0) |
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{ |
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21315988 |
display -> gx_display_driver_pixel_blend(context, |
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draw_area -> gx_rectangle_left + (GX_VALUE)col, |
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draw_area -> gx_rectangle_top + (GX_VALUE)row, |
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text_color, (GX_UBYTE)alpha1); |
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} |
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37209081 |
glyph_data++; |
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} |
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glyph_row += glyph -> gx_glyph_width; |
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} |
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} |
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#endif |
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} |
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