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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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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_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_32bpp_rotated_horizontal_line_draw */ |
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/* PORTABLE C */ |
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/* 6.1.4 */ |
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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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/* Generic 32bpp color format horizontal line draw function. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* context Drawing context */ |
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/* xstart x-coord of left endpoint */ |
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/* xend x-coord of right endpoint */ |
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/* ypos y-coord of line top */ |
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/* width Width (height) of the line */ |
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/* color Color of line to write */ |
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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_horizontal_line_alpha_draw */ |
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/* Basic horizontal line alpha */ |
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/* draw 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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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 02-02-2021 Kenneth Maxwell Initial Version 6.1.4 */ |
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/* */ |
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/**************************************************************************/ |
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416035 |
VOID _gx_display_driver_32bpp_rotated_horizontal_line_draw(GX_DRAW_CONTEXT *context, INT xstart, INT xend, INT ypos, INT width, GX_COLOR color) |
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{ |
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INT row; |
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INT column; |
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ULONG *put; |
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ULONG *rowstart; |
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INT len = xend - xstart + 1; |
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#if defined GX_BRUSH_ALPHA_SUPPORT |
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GX_UBYTE alpha; |
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alpha = context -> gx_draw_context_brush.gx_brush_alpha; |
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✓✓ |
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if (alpha == 0) |
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{ |
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/* Nothing to drawn. Just return. */ |
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return; |
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} |
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✓✓ |
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if (alpha != 0xff) |
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{ |
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_gx_display_driver_horizontal_line_alpha_draw(context, xstart, xend, ypos, width, color, alpha); |
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return; |
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} |
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#endif |
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/* Pick up start address of canvas memory. */ |
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rowstart = (ULONG *)context -> gx_draw_context_memory; |
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/* Calculate start of row address. */ |
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✓✓ |
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if (context -> gx_draw_context_display -> gx_display_rotation_angle == GX_SCREEN_ROTATION_CW) |
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{ |
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273436 |
rowstart += (context -> gx_draw_context_canvas -> gx_canvas_x_resolution - xstart - 1) * context -> gx_draw_context_pitch; |
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rowstart += ypos; |
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} |
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else |
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{ |
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142495 |
rowstart += xend * context -> gx_draw_context_pitch; |
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rowstart += (context -> gx_draw_context_canvas -> gx_canvas_y_resolution - ypos - width); |
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} |
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/* Draw one line, left to right. */ |
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✓✓ |
43577836 |
for (column = 0; column < len; column++) |
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{ |
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43161905 |
put = rowstart; |
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/* Draw 1-pixel vertical lines to fill width. */ |
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✓✓ |
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for (row = 0; row < width; row++) |
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{ |
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*put++ = (ULONG)color; |
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} |
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rowstart -= context -> gx_draw_context_pitch; |
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} |
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} |
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