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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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/** Utility (Utility) */ |
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/** */ |
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/**************************************************************************/ |
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#define REDVAL(_c) (GX_UBYTE)(((_c) >> 10) & 0x1f) |
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#define GREENVAL(_c) (GX_UBYTE)(((_c) >> 5) & 0x1f) |
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#define BLUEVAL(_c) (GX_UBYTE)(((_c)) & 0x1f) |
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#define ASSEMBLECOLOR(_r, _g, _b) \ |
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(USHORT)((((_r) & 0x1f) << 10) | \ |
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(((_g) & 0x1f) << 5) | \ |
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((_b) & 0x1f)) |
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#define BYTE_RANGE(_c) _c > 255 ? 255 : _c |
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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_utility.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_utility_1555xrgb_pixelmap_raw_resize PORTABLE C */ |
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/* 6.1.7 */ |
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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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/* Internal helper function that resize an 1555xrgb format pixelmap */ |
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/* without alpha. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* src The source pixelmap */ |
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/* destination The resized pixelmap to be */ |
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/* returned */ |
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/* width New width */ |
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/* height New height */ |
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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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/* _gx_system_memory_allocator */ |
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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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static UINT _gx_utility_1555xrgb_pixelmap_raw_resize(GX_PIXELMAP *src, GX_PIXELMAP *destination, INT width, INT height) |
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{ |
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/* The pixelmap resize function is implemented from bilinear interpolation |
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image scaling algorithm. */ |
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USHORT *get; |
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USHORT *put; |
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INT xdiff; |
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INT ydiff; |
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INT xradio; |
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INT yradio; |
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INT x; |
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INT y; |
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INT xx; |
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INT yy; |
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USHORT neighbor_pixels[2][2]; |
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GX_COLOR red; |
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GX_COLOR green; |
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GX_COLOR blue; |
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/* Calculate scale ratio and enlarge it by 256 times to keep precision. */ |
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xradio = ((src -> gx_pixelmap_width) << 8) / width; |
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yradio = ((src -> gx_pixelmap_height) << 8) / height; |
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/* Fill property values into destination pixelmap structure. */ |
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destination -> gx_pixelmap_flags = src -> gx_pixelmap_flags; |
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destination -> gx_pixelmap_format = src -> gx_pixelmap_format; |
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destination -> gx_pixelmap_height = (GX_VALUE)height; |
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destination -> gx_pixelmap_width = (GX_VALUE)width; |
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/* Safe int math is not required here, calling function limits max width, height to 14 bits so |
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overflow cannot occur. */ |
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destination -> gx_pixelmap_data_size = (UINT)(height * width) * sizeof(USHORT); |
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/* Allocate memory for destination pixelmap. */ |
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destination -> gx_pixelmap_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_data_size); |
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destination -> gx_pixelmap_aux_data = GX_NULL; |
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✓✓ |
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if (destination -> gx_pixelmap_data == GX_NULL) |
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{ |
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return GX_SYSTEM_MEMORY_ERROR; |
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} |
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put = (USHORT *)destination -> gx_pixelmap_data; |
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/* Loop through destination's pixel and fill each pixel with |
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the interpolation of 4 nearest neighboring pixels.*/ |
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✓✓ |
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for (y = 0; y < height; y++) |
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{ |
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✓✓ |
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for (x = 0; x < width; x++) |
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{ |
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/* Find the original source pixel that the destination pixel conrespond to. */ |
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2788080 |
xx = (xradio * x) >> 8; |
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yy = (yradio * y) >> 8; |
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/* The coordinates of the original source pixel are truncate value, |
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calucate their distance between the mathematical coordinates. */ |
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xdiff = (xradio * x) & 0xff; |
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ydiff = (yradio * y) & 0xff; |
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get = (USHORT *)src -> gx_pixelmap_data; |
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2788080 |
get += yy * src -> gx_pixelmap_width; |
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2788080 |
get += xx; |
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/* Calculate 4 nearest neighboring pixels around the mathematical point of original pixel. */ |
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2788080 |
neighbor_pixels[0][0] = *get; |
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✓✓✓✓
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2788080 |
if ((xx < src -> gx_pixelmap_width - 1) && (yy < src -> gx_pixelmap_height - 1)) |
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{ |
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2782329 |
neighbor_pixels[0][1] = *(get + 1); |
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2782329 |
neighbor_pixels[1][0] = *(get + src -> gx_pixelmap_width); |
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2782329 |
neighbor_pixels[1][1] = *(get + src -> gx_pixelmap_width + 1); |
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} |
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else |
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{ |
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✓✓ |
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if ((xx == src -> gx_pixelmap_width - 1) && |
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✓✓ |
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(yy == src -> gx_pixelmap_height - 1)) |
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{ |
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/* Handle pixels in right bottom corner. */ |
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neighbor_pixels[0][1] = neighbor_pixels[0][0]; |
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neighbor_pixels[1][0] = neighbor_pixels[0][0]; |
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neighbor_pixels[1][1] = neighbor_pixels[0][0]; |
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} |
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✓✓ |
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else if (xx == src -> gx_pixelmap_width - 1) |
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{ |
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/* Handle pixels in right edge. */ |
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neighbor_pixels[0][1] = neighbor_pixels[0][0]; |
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neighbor_pixels[1][0] = *(get + src -> gx_pixelmap_width); |
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neighbor_pixels[1][1] = neighbor_pixels[1][0]; |
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} |
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else |
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{ |
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/* Handle pixels in bottom edge. */ |
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neighbor_pixels[0][1] = *(get + 1); |
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neighbor_pixels[1][0] = neighbor_pixels[0][0]; |
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neighbor_pixels[1][1] = neighbor_pixels[0][1]; |
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} |
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} |
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/* Calulate pixel values by interpolating 4 neighboring pixels. */ |
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2788080 |
red = (REDVAL(neighbor_pixels[0][0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
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2788080 |
REDVAL(neighbor_pixels[0][1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
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2788080 |
REDVAL(neighbor_pixels[1][0]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
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2788080 |
REDVAL(neighbor_pixels[1][1]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
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2788080 |
green = (GREENVAL(neighbor_pixels[0][0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
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2788080 |
GREENVAL(neighbor_pixels[0][1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
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2788080 |
GREENVAL(neighbor_pixels[1][0]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
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GREENVAL(neighbor_pixels[1][1]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
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2788080 |
blue = (BLUEVAL(neighbor_pixels[0][0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
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BLUEVAL(neighbor_pixels[0][1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
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BLUEVAL(neighbor_pixels[1][0]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
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BLUEVAL(neighbor_pixels[1][1]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
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2788080 |
red = BYTE_RANGE(red); |
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green = BYTE_RANGE(green); |
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blue = BYTE_RANGE(blue); |
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*put++ = ASSEMBLECOLOR(red, green, blue); |
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} |
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} |
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return GX_SUCCESS; |
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} |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_utility_1555xrgb_pixelmap_alpha_resize PORTABLE C */ |
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/* 6.1.7 */ |
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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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/* Internal helper function that resize an 1555xrgb format pixelmap */ |
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/* with alpha. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* src The source pixelmap */ |
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/* destination The resized pixelmap to be */ |
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/* returned */ |
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/* width New width */ |
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/* height New height */ |
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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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/* _gx_system_memory_allocator */ |
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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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static UINT _gx_utility_1555xrgb_pixelmap_alpha_resize(GX_PIXELMAP *src, GX_PIXELMAP *destination, INT width, INT height) |
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{ |
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/* The pixelmap resize function is implemented from bilinear interpolation |
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image scaling algorithm. */ |
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USHORT *get; |
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USHORT *put; |
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GX_UBYTE *getalpha; |
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GX_UBYTE *putalpha; |
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INT xdiff; |
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INT ydiff; |
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INT xradio; |
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INT yradio; |
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INT x; |
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INT y; |
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INT xx; |
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INT yy; |
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USHORT neighbor_pixels[2][2]; |
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GX_COLOR alpha[4]; |
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GX_COLOR red; |
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GX_COLOR green; |
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GX_COLOR blue; |
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/* Calculate scale ratio and enlarge it by 256 times to keep precision. */ |
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xradio = ((src -> gx_pixelmap_width) << 8) / width; |
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yradio = ((src -> gx_pixelmap_height) << 8) / height; |
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/* Fill property values into destination pixelmap structure. */ |
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destination -> gx_pixelmap_flags = src -> gx_pixelmap_flags; |
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destination -> gx_pixelmap_format = src -> gx_pixelmap_format; |
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destination -> gx_pixelmap_height = (GX_VALUE)height; |
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destination -> gx_pixelmap_width = (GX_VALUE)width; |
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/* Safe int math is not required here, calling function limits max width, height to 14 bits so |
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overflow cannot occur. */ |
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destination -> gx_pixelmap_data_size = (UINT)(height * width) * sizeof(USHORT); |
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destination -> gx_pixelmap_aux_data_size = (UINT)(height * width) * sizeof(GX_UBYTE); |
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/* Allocate memory to load pixelmap data. */ |
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destination -> gx_pixelmap_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_data_size); |
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✓✓ |
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if (destination -> gx_pixelmap_data == GX_NULL) |
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{ |
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return GX_SYSTEM_MEMORY_ERROR; |
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} |
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destination -> gx_pixelmap_aux_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_aux_data_size); |
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✓✓ |
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if (destination -> gx_pixelmap_aux_data == GX_NULL) |
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{ |
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_gx_system_memory_free((void *)destination -> gx_pixelmap_data); |
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return GX_SYSTEM_MEMORY_ERROR; |
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} |
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put = (USHORT *)destination -> gx_pixelmap_data; |
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putalpha = (GX_UBYTE *)destination -> gx_pixelmap_aux_data; |
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/* Loop through destination's pixel and fill each pixel with |
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the interpolation of 4 nearest neighboring pixels.*/ |
303 |
✓✓ |
14434 |
for (y = 0; y < height; y++) |
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{ |
305 |
✓✓ |
2487353 |
for (x = 0; x < width; x++) |
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{ |
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/* Find the original source pixel that the destination pixel conrespond to. */ |
308 |
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2473020 |
xx = (xradio * x) >> 8; |
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2473020 |
yy = (yradio * y) >> 8; |
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311 |
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/* The coordinates of the original source pixel are truncate value, |
312 |
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calucate their distance between the mathematical coordinates. */ |
313 |
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2473020 |
xdiff = (xradio * x) & 0xff; |
314 |
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2473020 |
ydiff = (yradio * y) & 0xff; |
315 |
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316 |
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2473020 |
get = (USHORT *)src -> gx_pixelmap_data; |
317 |
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2473020 |
get += yy * src -> gx_pixelmap_width; |
318 |
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2473020 |
get += xx; |
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320 |
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2473020 |
getalpha = (GX_UBYTE *)src -> gx_pixelmap_aux_data; |
321 |
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2473020 |
getalpha += yy * src -> gx_pixelmap_width; |
322 |
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2473020 |
getalpha += xx; |
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/* Calculate 4 nearest neighboring pixels around the mathematical point of original pixel. */ |
326 |
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2473020 |
neighbor_pixels[0][0] = *get; |
327 |
|
2473020 |
alpha[0] = *getalpha; |
328 |
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|
329 |
✓✓✓✓
|
2473020 |
if ((xx < src -> gx_pixelmap_width - 1) && (yy < src -> gx_pixelmap_height - 1)) |
330 |
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{ |
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2467921 |
neighbor_pixels[0][1] = *(get + 1); |
332 |
|
2467921 |
neighbor_pixels[1][0] = *(get + src -> gx_pixelmap_width); |
333 |
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2467921 |
neighbor_pixels[1][1] = *(get + src -> gx_pixelmap_width + 1); |
334 |
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335 |
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2467921 |
alpha[1] = *(getalpha + 1); |
336 |
|
2467921 |
alpha[2] = *(getalpha + src -> gx_pixelmap_width); |
337 |
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2467921 |
alpha[3] = *(getalpha + src -> gx_pixelmap_width + 1); |
338 |
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} |
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else |
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{ |
341 |
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|
342 |
✓✓ |
5099 |
if ((xx == src -> gx_pixelmap_width - 1) && |
343 |
✓✓ |
1411 |
(yy == src -> gx_pixelmap_height - 1)) |
344 |
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{ |
345 |
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/* Handle right bottom corder pixel. */ |
346 |
|
2 |
neighbor_pixels[0][1] = neighbor_pixels[0][0]; |
347 |
|
2 |
neighbor_pixels[1][0] = neighbor_pixels[0][0]; |
348 |
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2 |
neighbor_pixels[1][1] = neighbor_pixels[0][0]; |
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350 |
|
2 |
alpha[1] = alpha[0]; |
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|
2 |
alpha[2] = alpha[0]; |
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|
2 |
alpha[3] = alpha[0]; |
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} |
354 |
✓✓ |
5097 |
else if (xx == src -> gx_pixelmap_width - 1) |
355 |
|
|
{ |
356 |
|
|
/* Handle pixels in right edge. */ |
357 |
|
1409 |
neighbor_pixels[0][1] = neighbor_pixels[0][0]; |
358 |
|
1409 |
neighbor_pixels[1][0] = *(get + src -> gx_pixelmap_width); |
359 |
|
1409 |
neighbor_pixels[1][1] = neighbor_pixels[1][0]; |
360 |
|
|
|
361 |
|
1409 |
alpha[1] = alpha[0]; |
362 |
|
1409 |
alpha[2] = *(getalpha + src -> gx_pixelmap_width); |
363 |
|
1409 |
alpha[3] = alpha[2]; |
364 |
|
|
} |
365 |
|
|
else |
366 |
|
|
{ |
367 |
|
|
/* Handle pixels in bottom edge. */ |
368 |
|
3688 |
neighbor_pixels[0][1] = *(get + 1); |
369 |
|
3688 |
neighbor_pixels[1][0] = neighbor_pixels[0][0]; |
370 |
|
3688 |
neighbor_pixels[1][1] = neighbor_pixels[0][1]; |
371 |
|
|
|
372 |
|
3688 |
alpha[1] = *(getalpha + 1); |
373 |
|
3688 |
alpha[2] = alpha[0]; |
374 |
|
3688 |
alpha[3] = alpha[1]; |
375 |
|
|
} |
376 |
|
|
} |
377 |
|
|
|
378 |
|
|
/* Calulate pixel values by interpolating 4 neighboring pixels. */ |
379 |
|
2473020 |
red = (REDVAL(neighbor_pixels[0][0]) * (alpha[0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
380 |
|
2473020 |
REDVAL(neighbor_pixels[0][1]) * (alpha[1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
381 |
|
2473020 |
REDVAL(neighbor_pixels[1][0]) * (alpha[2]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
382 |
|
2473020 |
REDVAL(neighbor_pixels[1][1]) * (alpha[3]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
383 |
|
|
|
384 |
|
2473020 |
green = (GREENVAL(neighbor_pixels[0][0]) * (alpha[0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
385 |
|
2473020 |
GREENVAL(neighbor_pixels[0][1]) * (alpha[1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
386 |
|
2473020 |
GREENVAL(neighbor_pixels[1][0]) * (alpha[2]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
387 |
|
2473020 |
GREENVAL(neighbor_pixels[1][1]) * (alpha[3]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
388 |
|
|
|
389 |
|
2473020 |
blue = (BLUEVAL(neighbor_pixels[0][0]) * (alpha[0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
390 |
|
2473020 |
BLUEVAL(neighbor_pixels[0][1]) * (alpha[1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
391 |
|
2473020 |
BLUEVAL(neighbor_pixels[1][0]) * (alpha[2]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
392 |
|
2473020 |
BLUEVAL(neighbor_pixels[1][1]) * (alpha[3]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
393 |
|
|
|
394 |
|
2473020 |
alpha[0] = ((alpha[0]) * (256 - (GX_COLOR)xdiff) * (256 - (GX_COLOR)ydiff) + \ |
395 |
|
2473020 |
(alpha[1]) * (GX_COLOR)xdiff * (256 - (GX_COLOR)ydiff) + \ |
396 |
|
2473020 |
(alpha[2]) * (GX_COLOR)ydiff * (256 - (GX_COLOR)xdiff) + \ |
397 |
|
2473020 |
(alpha[3]) * (GX_COLOR)xdiff * (GX_COLOR)ydiff) >> 16; |
398 |
|
|
|
399 |
✓✓ |
2473020 |
if (alpha[0]) |
400 |
|
|
{ |
401 |
|
1060788 |
red /= alpha[0]; |
402 |
|
1060788 |
green /= alpha[0]; |
403 |
|
1060788 |
blue /= alpha[0]; |
404 |
|
|
} |
405 |
|
|
|
406 |
|
2473020 |
alpha[0] = BYTE_RANGE(alpha[0]); |
407 |
|
2473020 |
red = BYTE_RANGE(red); |
408 |
|
2473020 |
green = BYTE_RANGE(green); |
409 |
|
2473020 |
blue = BYTE_RANGE(blue); |
410 |
|
|
|
411 |
|
2473020 |
*put++ = ASSEMBLECOLOR(red, green, blue); |
412 |
|
2473020 |
*putalpha++ = (GX_UBYTE)alpha[0]; |
413 |
|
|
} |
414 |
|
|
} |
415 |
|
|
|
416 |
|
101 |
return GX_SUCCESS; |
417 |
|
|
} |
418 |
|
|
|
419 |
|
|
/**************************************************************************/ |
420 |
|
|
/* */ |
421 |
|
|
/* FUNCTION RELEASE */ |
422 |
|
|
/* */ |
423 |
|
|
/* _gx_utility_1555xrgb_pixelmap_resize PORTABLE C */ |
424 |
|
|
/* 6.1 */ |
425 |
|
|
/* AUTHOR */ |
426 |
|
|
/* */ |
427 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
428 |
|
|
/* */ |
429 |
|
|
/* DESCRIPTION */ |
430 |
|
|
/* */ |
431 |
|
|
/* This function resize an 1555xrgb format pixelmap with or without */ |
432 |
|
|
/* alpha channel. */ |
433 |
|
|
/* */ |
434 |
|
|
/* INPUT */ |
435 |
|
|
/* */ |
436 |
|
|
/* src The source pixelmap */ |
437 |
|
|
/* destination The resized pixelmap to be */ |
438 |
|
|
/* returned */ |
439 |
|
|
/* width New width */ |
440 |
|
|
/* height New height */ |
441 |
|
|
/* */ |
442 |
|
|
/* OUTPUT */ |
443 |
|
|
/* */ |
444 |
|
|
/* status Completion status */ |
445 |
|
|
/* */ |
446 |
|
|
/* CALLS */ |
447 |
|
|
/* */ |
448 |
|
|
/* _gx_utility_1555xrgb_pixelmap_alpha_resize */ |
449 |
|
|
/* Resize 1555xrgb format */ |
450 |
|
|
/* pixelmap with alpha */ |
451 |
|
|
/* _gx_utility_1555xrgb_pixelmap_raw_resize */ |
452 |
|
|
/* Resize 1555xrgb format */ |
453 |
|
|
/* pixelmap without alpha */ |
454 |
|
|
/* */ |
455 |
|
|
/* CALLED BY */ |
456 |
|
|
/* */ |
457 |
|
|
/* GUIX Internal Code */ |
458 |
|
|
/* */ |
459 |
|
|
/**************************************************************************/ |
460 |
|
206 |
UINT _gx_utility_1555xrgb_pixelmap_resize(GX_PIXELMAP *src, GX_PIXELMAP *destination, INT width, INT height) |
461 |
|
|
{ |
462 |
|
|
UINT status; |
463 |
|
|
|
464 |
✓✓ |
206 |
if (src -> gx_pixelmap_flags & GX_PIXELMAP_ALPHA) |
465 |
|
|
{ |
466 |
|
|
/* alpha, no compression */ |
467 |
|
|
|
468 |
|
103 |
status = _gx_utility_1555xrgb_pixelmap_alpha_resize(src, destination, width, height); |
469 |
|
|
} |
470 |
|
|
else |
471 |
|
|
{ |
472 |
|
|
/* no alpha, no compression */ |
473 |
|
|
|
474 |
|
103 |
status = _gx_utility_1555xrgb_pixelmap_raw_resize(src, destination, width, height); |
475 |
|
|
} |
476 |
|
|
|
477 |
|
206 |
return status; |
478 |
|
|
} |