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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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/** Canvas Management (Canvas) */ |
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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_canvas.h" |
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#include "gx_system.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_canvas_pixelmap_get 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 creates a GX_PIXELMAP structure pointing to the */ |
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/* canvas data. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* pixelmap Pointer to destination for */ |
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/* the retrieved pixlemap */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* status Completion status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application Code */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gx_canvas_pixelmap_get(GX_PIXELMAP *pixelmap) |
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{ |
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GX_DRAW_CONTEXT *context; |
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GX_DISPLAY *display; |
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GX_CANVAS *canvas; |
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/* pick up the current drawing context */ |
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context = _gx_system_current_draw_context; |
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✓✓ |
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if (context == GX_NULL) |
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{ |
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return GX_INVALID_CONTEXT; |
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} |
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/* pick up curren canvas. */ |
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canvas = context -> gx_draw_context_canvas; |
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✓✓ |
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if (canvas == GX_NULL) |
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{ |
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return GX_INVALID_CANVAS; |
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} |
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/* pick up current display driver */ |
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display = context -> gx_draw_context_display; |
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✓✓ |
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if (display == GX_NULL) |
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{ |
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return GX_INVALID_DISPLAY; |
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} |
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memset(pixelmap, 0, sizeof(GX_PIXELMAP)); |
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pixelmap -> gx_pixelmap_width = canvas -> gx_canvas_x_resolution; |
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pixelmap -> gx_pixelmap_height = canvas -> gx_canvas_y_resolution; |
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pixelmap -> gx_pixelmap_format = (GX_UBYTE)display -> gx_display_color_format; |
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pixelmap -> gx_pixelmap_data = (GX_UBYTE *)canvas -> gx_canvas_memory; |
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pixelmap -> gx_pixelmap_data_size = canvas -> gx_canvas_memory_size; |
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pixelmap -> gx_pixelmap_version_major = 1; |
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pixelmap -> gx_pixelmap_version_minor = 0; |
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/* Return successful completion. */ |
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return(GX_SUCCESS); |
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} |
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