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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_display.h" |
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#include "gx_context.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_display_driver_4bpp_pixelmap_raw_rotate PORTABLE C */ |
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/* 6.1.10 */ |
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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 rotate an uncompressed pixelmap */ |
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/* without transparent. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* context Drawing context */ |
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/* xpos x-coord of top-left draw point*/ |
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/* ypos y-coord of top-left draw point*/ |
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/* pixelmap Pointer to GX_PIXELMAP struct */ |
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/* angle The angle to rotate */ |
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/* rot_cx x-coord of rotate center */ |
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/* rot_cy y-coord of rotate center */ |
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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_utility_math_cos Compute the cosine value */ |
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/* _gx_utility_math_sin Compute the sine value */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_display_driver_4bpp_pixelmap_rotate */ |
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/* */ |
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/**************************************************************************/ |
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static VOID _gx_display_driver_4bpp_pixelmap_raw_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
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INT angle, INT cx, INT cy) |
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{ |
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GX_UBYTE *putrow; |
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GX_UBYTE *put; |
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GX_UBYTE *get; |
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INT srcxres; |
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INT srcyres; |
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INT cosv; |
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INT sinv; |
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INT idxminx; |
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INT idxmaxx; |
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INT idxmaxy; |
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INT mx[] = {-1, 1, 1, -1}; |
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INT my[] = {1, 1, -1, -1}; |
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INT xres; |
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INT yres; |
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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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GX_RECTANGLE *clip; |
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INT newxpos; |
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INT newypos; |
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GX_UBYTE putmask; |
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INT putstride; |
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INT getstride; |
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GX_UBYTE color; |
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clip = context -> gx_draw_context_clip; |
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/* Set transparent color. */ |
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idxminx = (angle / 90) & 0x3; |
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idxmaxx = (idxminx + 2) & 0x3; |
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idxmaxy = (idxminx + 1) & 0x3; |
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/* Calculate the source x and y center. */ |
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srcxres = pixelmap -> gx_pixelmap_width >> 1; |
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srcyres = pixelmap -> gx_pixelmap_height >> 1; |
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cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
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sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
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xres = GX_FIXED_VAL_TO_INT((mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv)); |
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yres = GX_FIXED_VAL_TO_INT((my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv)); |
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getstride = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
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putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
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putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
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putrow += clip -> gx_rectangle_top * putstride; |
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putrow += clip -> gx_rectangle_left >> 1; |
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/* Calculate the new rotation axis. */ |
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xres = GX_FIXED_VAL_TO_INT((cx - srcxres) * cosv - (cy - srcyres) * sinv) + xres; |
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yres = GX_FIXED_VAL_TO_INT((cy - srcyres) * cosv + (cx - srcxres) * sinv) + yres; |
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newxpos = xpos + cx - xres; |
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newypos = ypos + cy - yres; |
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/* For every pixel in destination bitmap, find its position in source bitmap, |
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and set the pixel with the value in source bitmap. */ |
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✓✓ |
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for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
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{ |
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✓✓ |
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if (clip -> gx_rectangle_left & 1) |
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{ |
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putmask = 0x0f; |
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} |
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else |
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{ |
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putmask = 0xf0; |
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} |
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put = putrow; |
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✓✓ |
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for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
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{ |
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xx = GX_FIXED_VAL_TO_INT((x - xres) * cosv + (y - yres) * sinv) + cx; |
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yy = GX_FIXED_VAL_TO_INT((y - yres) * cosv - (x - xres) * sinv) + cy; |
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✓✓✓✓ ✓✓ |
47271084 |
if ((xx >= 0) && (xx < pixelmap -> gx_pixelmap_width) && |
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✓✓ |
35086005 |
(yy >= 0) && (yy < pixelmap -> gx_pixelmap_height)) |
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{ |
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get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
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get += yy * getstride; |
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get += xx >> 1; |
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✓✓ |
26972906 |
if (xx & 1) |
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{ |
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color = *get & 0x0f; |
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} |
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else |
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{ |
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color = (*get & 0xf0) >> 4; |
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} |
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color |= (GX_UBYTE)(color << 4); |
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*put &= (GX_UBYTE)(~putmask); |
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*put |= color & putmask; |
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} |
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47271084 |
putmask >>= 4; |
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✓✓ |
47271084 |
if (putmask == 0) |
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{ |
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23639588 |
put++; |
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putmask = 0xf0; |
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} |
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} |
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putrow += putstride; |
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} |
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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_display_driver_4bpp_pixelmap_transparent_rotate PORTABLE C */ |
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/* 6.1.10 */ |
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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 rotate an uncompressed pixelmap */ |
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/* with transparent info. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* context Drawing context */ |
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/* xpos x-coord of top-left draw point*/ |
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/* ypos y-coord of top-left draw point*/ |
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/* pixelmap Pointer to GX_PIXELMAP struct */ |
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/* angle The angle to rotate */ |
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/* rot_cx x-coord of rotate center */ |
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/* rot_cy y-coord of rotate center */ |
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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_utility_math_cos Compute the cosine value */ |
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/* _gx_utility_math_sin Compute the sine value */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_display_driver_4bpp_pixelmap_rotate */ |
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/* */ |
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/**************************************************************************/ |
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static VOID _gx_display_driver_4bpp_pixelmap_transparent_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
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INT angle, INT cx, INT cy) |
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{ |
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GX_UBYTE *putrow; |
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GX_UBYTE *put; |
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GX_UBYTE *get; |
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GX_UBYTE *getaux; |
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GX_UBYTE putmask; |
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GX_UBYTE transmask; |
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GX_UBYTE pixel; |
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INT putstride; |
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INT getauxstride; |
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INT getstride; |
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INT srcxres; |
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INT srcyres; |
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INT cosv; |
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INT sinv; |
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INT idxminx; |
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INT idxmaxx; |
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INT idxmaxy; |
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INT mx[] = {-1, 1, 1, -1}; |
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INT my[] = {1, 1, -1, -1}; |
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INT xres; |
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INT yres; |
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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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GX_RECTANGLE *clip; |
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INT newxpos; |
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INT newypos; |
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clip = context -> gx_draw_context_clip; |
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putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
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getstride = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
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getauxstride = (pixelmap -> gx_pixelmap_width + 7) >> 3; |
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/* Set transparent color. */ |
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idxminx = (angle / 90) & 0x3; |
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idxmaxx = (idxminx + 2) & 0x3; |
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idxmaxy = (idxminx + 1) & 0x3; |
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/* Calculate the source x and y center. */ |
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srcxres = pixelmap -> gx_pixelmap_width >> 1; |
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srcyres = pixelmap -> gx_pixelmap_height >> 1; |
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cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
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sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
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xres = GX_FIXED_VAL_TO_INT((mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv)); |
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yres = GX_FIXED_VAL_TO_INT((my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv)); |
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putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
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putrow += clip -> gx_rectangle_top * putstride; |
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putrow += clip -> gx_rectangle_left >> 1; |
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/* Calculate the new rotation axis. */ |
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x = (cx - srcxres) * cosv - (cy - srcyres) * sinv; |
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y = (cy - srcyres) * cosv + (cx - srcxres) * sinv; |
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xres = GX_FIXED_VAL_TO_INT(x) + xres; |
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yres = GX_FIXED_VAL_TO_INT(y) + yres; |
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newxpos = xpos + cx - xres; |
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newypos = ypos + cy - yres; |
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/* For every pixel in destination bitmap, find its position in source bitmap, |
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and set the pixel with the value in source bitmap. */ |
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✓✓ |
167899 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
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{ |
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167187 |
put = putrow; |
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✓✓ |
167187 |
if (clip -> gx_rectangle_left & 1) |
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{ |
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92123 |
putmask = 0x0f; |
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} |
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else |
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{ |
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75064 |
putmask = 0xf0; |
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} |
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✓✓ |
48499009 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
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{ |
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48331822 |
xx = GX_FIXED_VAL_TO_INT((x - xres) * cosv + (y - yres) * sinv) + cx; |
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48331822 |
yy = GX_FIXED_VAL_TO_INT((y - yres) * cosv - (x - xres) * sinv) + cy; |
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✓✓✓✓ ✓✓ |
48331822 |
if ((xx >= 0) && (xx < pixelmap -> gx_pixelmap_width) && |
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✓✓ |
32737301 |
(yy >= 0) && (yy < pixelmap -> gx_pixelmap_height)) |
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{ |
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28998345 |
getaux = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
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28998345 |
getaux += yy * getauxstride; |
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28998345 |
getaux += xx >> 3; |
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28998345 |
transmask = (GX_UBYTE)(0x80 >> (xx & 0x07)); |
312 |
✓✓ |
28998345 |
if (!(transmask & (*getaux))) |
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{ |
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20386958 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
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20386958 |
get += yy * getstride; |
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20386958 |
get += xx >> 1; |
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|
318 |
✓✓ |
20386958 |
if (xx & 1) |
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{ |
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10190126 |
pixel = *get & 0x0f; |
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} |
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else |
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{ |
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10196832 |
pixel = *get >> 4; |
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} |
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20386958 |
pixel |= (GX_UBYTE)(pixel << 4); |
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20386958 |
*put &= (GX_UBYTE)(~putmask); |
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20386958 |
*put |= pixel & putmask; |
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} |
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} |
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48331822 |
putmask >>= 4; |
334 |
✓✓ |
48331822 |
if (putmask == 0) |
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{ |
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24170623 |
put++; |
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24170623 |
putmask = 0xf0; |
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} |
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} |
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167187 |
putrow += putstride; |
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} |
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712 |
} |
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344 |
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/**************************************************************************/ |
345 |
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/* */ |
346 |
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/* FUNCTION RELEASE */ |
347 |
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/* */ |
348 |
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/* _gx_display_driver_4bpp_pixelmap_simple_rotate PORTABLE C */ |
349 |
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/* 6.1.7 */ |
350 |
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/* AUTHOR */ |
351 |
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/* */ |
352 |
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/* Kenneth Maxwell, Microsoft Corporation */ |
353 |
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/* */ |
354 |
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/* DESCRIPTION */ |
355 |
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/* */ |
356 |
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/* Internal help function that hangles 90, 180 and 270 degree pixelmap */ |
357 |
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/* rotation. */ |
358 |
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/* */ |
359 |
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/* INPUT */ |
360 |
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/* */ |
361 |
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/* context Drawing context */ |
362 |
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/* xpos x-coord of top-left draw point*/ |
363 |
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/* ypos y-coord of top-left draw point*/ |
364 |
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/* pixelmap Pointer to GX_PIXELMAP struct */ |
365 |
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/* angle The angle to rotate */ |
366 |
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/* rot_cx x-coord of rotate center */ |
367 |
|
|
/* rot_cy y-coord of rotate center */ |
368 |
|
|
/* */ |
369 |
|
|
/* OUTPUT */ |
370 |
|
|
/* */ |
371 |
|
|
/* status Completion status */ |
372 |
|
|
/* */ |
373 |
|
|
/* CALLS */ |
374 |
|
|
/* */ |
375 |
|
|
/* None */ |
376 |
|
|
/* */ |
377 |
|
|
/* CALLED BY */ |
378 |
|
|
/* */ |
379 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate */ |
380 |
|
|
/* */ |
381 |
|
|
/**************************************************************************/ |
382 |
|
15 |
static VOID _gx_display_driver_4bpp_pixelmap_simple_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
383 |
|
|
INT angle, INT cx, INT cy) |
384 |
|
|
{ |
385 |
|
|
GX_UBYTE *putrow; |
386 |
|
|
GX_UBYTE *put; |
387 |
|
|
GX_UBYTE putmask; |
388 |
|
|
GX_UBYTE *get; |
389 |
|
|
INT putstride; |
390 |
|
|
INT width; |
391 |
|
|
INT height; |
392 |
|
|
INT x; |
393 |
|
|
INT y; |
394 |
|
|
GX_RECTANGLE *clip; |
395 |
|
|
INT newxpos; |
396 |
|
|
INT newypos; |
397 |
|
|
GX_UBYTE color; |
398 |
|
|
|
399 |
|
15 |
clip = context -> gx_draw_context_clip; |
400 |
|
15 |
putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
401 |
|
|
|
402 |
|
15 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
403 |
|
15 |
putrow += clip -> gx_rectangle_top * putstride; |
404 |
|
15 |
putrow += clip -> gx_rectangle_left >> 1; |
405 |
|
|
|
406 |
✓✓ |
15 |
if (angle == 90) |
407 |
|
|
{ |
408 |
|
5 |
width = pixelmap -> gx_pixelmap_height; |
409 |
|
5 |
height = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
410 |
|
|
|
411 |
|
5 |
newxpos = xpos + cx - (width - 1 - cy); |
412 |
|
5 |
newypos = ypos + cy - cx; |
413 |
|
|
|
414 |
✓✓ |
1136 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
415 |
|
|
{ |
416 |
✓✓ |
1131 |
if (clip -> gx_rectangle_left & 1) |
417 |
|
|
{ |
418 |
|
651 |
putmask = 0x0f; |
419 |
|
|
} |
420 |
|
|
else |
421 |
|
|
{ |
422 |
|
480 |
putmask = 0xf0; |
423 |
|
|
} |
424 |
|
|
|
425 |
|
1131 |
put = putrow; |
426 |
|
|
|
427 |
✓✓ |
147777 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
428 |
|
|
{ |
429 |
|
146646 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
430 |
|
146646 |
get += (width - 1 - x) * height; |
431 |
|
146646 |
get += y >> 1; |
432 |
|
|
|
433 |
✓✓ |
146646 |
if (y & 1) |
434 |
|
|
{ |
435 |
|
73386 |
color = *get & 0x0f; |
436 |
|
|
} |
437 |
|
|
else |
438 |
|
|
{ |
439 |
|
73260 |
color = (*get & 0xf0) >> 4; |
440 |
|
|
} |
441 |
|
146646 |
color |= (GX_UBYTE)(color << 4); |
442 |
|
|
|
443 |
|
146646 |
*put &= (GX_UBYTE)(~putmask); |
444 |
|
146646 |
*put |= color & putmask; |
445 |
|
|
|
446 |
|
146646 |
putmask >>= 4; |
447 |
✓✓ |
146646 |
if (putmask == 0) |
448 |
|
|
{ |
449 |
|
73413 |
putmask = 0xf0; |
450 |
|
73413 |
put++; |
451 |
|
|
} |
452 |
|
|
} |
453 |
|
|
|
454 |
|
1131 |
putrow += putstride; |
455 |
|
|
} |
456 |
|
|
} |
457 |
✓✓ |
10 |
else if (angle == 180) |
458 |
|
|
{ |
459 |
|
|
|
460 |
|
5 |
width = pixelmap -> gx_pixelmap_width; |
461 |
|
5 |
height = pixelmap -> gx_pixelmap_height; |
462 |
|
|
|
463 |
|
5 |
newxpos = xpos + cx - (width - 1 - cx); |
464 |
|
5 |
newypos = ypos + cy - (height - 1 - cy); |
465 |
|
|
|
466 |
✓✓ |
586 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
467 |
|
|
{ |
468 |
✓✓ |
581 |
if (clip -> gx_rectangle_left & 1) |
469 |
|
|
{ |
470 |
|
455 |
putmask = 0x0f; |
471 |
|
|
} |
472 |
|
|
else |
473 |
|
|
{ |
474 |
|
126 |
putmask = 0xf0; |
475 |
|
|
} |
476 |
|
581 |
put = putrow; |
477 |
|
|
|
478 |
✓✓ |
129660 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
479 |
|
|
{ |
480 |
|
129079 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
481 |
|
129079 |
get += (height - 1 - y) * ((width + 1) >> 1); |
482 |
|
129079 |
get += (width - 1 - x) >> 1; |
483 |
|
|
|
484 |
✓✓ |
129079 |
if ((pixelmap -> gx_pixelmap_width - 1 - x) & 1) |
485 |
|
|
{ |
486 |
|
64593 |
color = *get & 0x0f; |
487 |
|
|
} |
488 |
|
|
else |
489 |
|
|
{ |
490 |
|
64486 |
color = (*get & 0xf0) >> 4; |
491 |
|
|
} |
492 |
|
129079 |
color |= (GX_UBYTE)(color << 4); |
493 |
|
129079 |
*put &= (GX_UBYTE)(~putmask); |
494 |
|
129079 |
*put |= color & putmask; |
495 |
|
|
|
496 |
|
129079 |
putmask >>= 4; |
497 |
✓✓ |
129079 |
if (putmask == 0) |
498 |
|
|
{ |
499 |
|
64593 |
putmask = 0xf0; |
500 |
|
64593 |
put++; |
501 |
|
|
} |
502 |
|
|
} |
503 |
|
581 |
putrow += putstride; |
504 |
|
|
} |
505 |
|
|
} |
506 |
|
|
else |
507 |
|
|
{ |
508 |
|
5 |
height = pixelmap -> gx_pixelmap_width; |
509 |
|
|
|
510 |
|
5 |
newxpos = xpos + cx - cy; |
511 |
|
5 |
newypos = ypos + cx - (height - 1 - cy); |
512 |
|
|
|
513 |
✓✓ |
928 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
514 |
|
|
{ |
515 |
✓✓ |
923 |
if (clip -> gx_rectangle_left & 1) |
516 |
|
|
{ |
517 |
|
576 |
putmask = 0x0f; |
518 |
|
|
} |
519 |
|
|
else |
520 |
|
|
{ |
521 |
|
347 |
putmask = 0xf0; |
522 |
|
|
} |
523 |
|
923 |
put = putrow; |
524 |
|
|
|
525 |
✓✓ |
119429 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
526 |
|
|
{ |
527 |
|
118506 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
528 |
|
118506 |
get += x * ((height + 1) >> 1); |
529 |
|
118506 |
get += (height - 1 - y) >> 1; |
530 |
|
|
|
531 |
✓✓ |
118506 |
if ((height - 1 - y) & 1) |
532 |
|
|
{ |
533 |
|
59316 |
color = *get & 0x0f; |
534 |
|
|
} |
535 |
|
|
else |
536 |
|
|
{ |
537 |
|
59190 |
color = (*get & 0xf0) >> 4; |
538 |
|
|
} |
539 |
|
118506 |
color |= (GX_UBYTE)(color << 4); |
540 |
|
|
|
541 |
|
118506 |
*put &= (GX_UBYTE)(~putmask); |
542 |
|
118506 |
*put |= color & putmask; |
543 |
|
|
|
544 |
|
118506 |
putmask >>= 4; |
545 |
✓✓ |
118506 |
if (putmask == 0) |
546 |
|
|
{ |
547 |
|
59301 |
putmask = 0xf0; |
548 |
|
59301 |
put++; |
549 |
|
|
} |
550 |
|
|
} |
551 |
|
|
|
552 |
|
923 |
putrow += putstride; |
553 |
|
|
} |
554 |
|
|
} |
555 |
|
15 |
} |
556 |
|
|
/**************************************************************************/ |
557 |
|
|
/* */ |
558 |
|
|
/* FUNCTION RELEASE */ |
559 |
|
|
/* */ |
560 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_transparent_rotate */ |
561 |
|
|
/* PORTABLE C */ |
562 |
|
|
/* 6.1.7 */ |
563 |
|
|
/* AUTHOR */ |
564 |
|
|
/* */ |
565 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
566 |
|
|
/* */ |
567 |
|
|
/* DESCRIPTION */ |
568 |
|
|
/* */ |
569 |
|
|
/* Internal help function that hangles 90, 180 and 270 degree pixelmap */ |
570 |
|
|
/* rotation. */ |
571 |
|
|
/* */ |
572 |
|
|
/* INPUT */ |
573 |
|
|
/* */ |
574 |
|
|
/* context Drawing context */ |
575 |
|
|
/* xpos x-coord of top-left draw point*/ |
576 |
|
|
/* ypos y-coord of top-left draw point*/ |
577 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
578 |
|
|
/* angle The angle to rotate */ |
579 |
|
|
/* rot_cx x-coord of rotate center */ |
580 |
|
|
/* rot_cy y-coord of rotate center */ |
581 |
|
|
/* */ |
582 |
|
|
/* OUTPUT */ |
583 |
|
|
/* */ |
584 |
|
|
/* status Completion status */ |
585 |
|
|
/* */ |
586 |
|
|
/* CALLS */ |
587 |
|
|
/* */ |
588 |
|
|
/* None */ |
589 |
|
|
/* */ |
590 |
|
|
/* CALLED BY */ |
591 |
|
|
/* */ |
592 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate */ |
593 |
|
|
/* */ |
594 |
|
|
/**************************************************************************/ |
595 |
|
13 |
static VOID _gx_display_driver_4bpp_pixelmap_simple_transparent_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
596 |
|
|
INT angle, INT cx, INT cy) |
597 |
|
|
{ |
598 |
|
|
GX_UBYTE *get; |
599 |
|
|
GX_UBYTE *gettransmask; |
600 |
|
|
INT width; |
601 |
|
|
INT height; |
602 |
|
|
INT x; |
603 |
|
|
INT y; |
604 |
|
|
GX_RECTANGLE *clip; |
605 |
|
|
INT newxpos; |
606 |
|
|
INT newypos; |
607 |
|
|
GX_UBYTE *put; |
608 |
|
|
GX_UBYTE *putrow; |
609 |
|
|
INT putstride; |
610 |
|
|
GX_UBYTE putmask; |
611 |
|
|
INT getstride; |
612 |
|
|
INT getauxstride; |
613 |
|
|
GX_UBYTE transmask; |
614 |
|
|
GX_UBYTE pixel; |
615 |
|
|
|
616 |
✓✓ |
13 |
if (pixelmap -> gx_pixelmap_aux_data == GX_NULL) |
617 |
|
|
{ |
618 |
|
|
/* 4bpp transparent pixelmap must have aux data to store the transparent mask info. */ |
619 |
|
1 |
return; |
620 |
|
|
} |
621 |
|
|
|
622 |
|
12 |
clip = context -> gx_draw_context_clip; |
623 |
|
|
/* 4bpp pixelmap is stored as half byte. And it's transparent info is stored in aux data by one bit */ |
624 |
|
12 |
getstride = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
625 |
|
12 |
getauxstride = (pixelmap -> gx_pixelmap_width + 7) >> 3; |
626 |
|
12 |
putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
627 |
|
12 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
628 |
|
12 |
putrow += clip -> gx_rectangle_top * putstride; |
629 |
|
12 |
putrow += clip -> gx_rectangle_left >> 1; |
630 |
|
|
|
631 |
|
12 |
clip = context -> gx_draw_context_clip; |
632 |
|
|
|
633 |
✓✓ |
12 |
if (angle == 90) |
634 |
|
|
{ |
635 |
|
4 |
width = pixelmap -> gx_pixelmap_height; |
636 |
|
|
|
637 |
|
4 |
newxpos = xpos + cx - (width - 1 - cy); |
638 |
|
4 |
newypos = ypos + cy - cx; |
639 |
|
|
|
640 |
✓✓ |
784 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
641 |
|
|
{ |
642 |
|
780 |
put = putrow; |
643 |
✓✓ |
780 |
if (clip -> gx_rectangle_left & 1) |
644 |
|
|
{ |
645 |
|
195 |
putmask = 0x0f; |
646 |
|
|
} |
647 |
|
|
else |
648 |
|
|
{ |
649 |
|
585 |
putmask = 0xf0; |
650 |
|
|
} |
651 |
|
|
|
652 |
✓✓ |
199875 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
653 |
|
|
{ |
654 |
|
199095 |
gettransmask = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
655 |
|
199095 |
gettransmask += (width - 1 - x) * getauxstride; |
656 |
|
199095 |
gettransmask += y >> 3; |
657 |
|
|
|
658 |
|
199095 |
transmask = (GX_UBYTE)(0x80 >> (y & 0x07)); |
659 |
|
|
|
660 |
|
|
/* if not transparent, draw pixel. else skip. */ |
661 |
✓✓ |
199095 |
if (!(transmask & (*gettransmask))) |
662 |
|
|
{ |
663 |
|
141237 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
664 |
|
141237 |
get += (width - 1 - x) * getstride; |
665 |
|
141237 |
get += y >> 1; |
666 |
|
|
|
667 |
✓✓ |
141237 |
if (y & 1) |
668 |
|
|
{ |
669 |
|
70595 |
pixel = *get & 0x0f; |
670 |
|
|
} |
671 |
|
|
else |
672 |
|
|
{ |
673 |
|
70642 |
pixel = *get >> 4; |
674 |
|
|
} |
675 |
|
141237 |
pixel |= (GX_UBYTE)(pixel << 4); |
676 |
|
|
|
677 |
|
141237 |
*put &= (GX_UBYTE)(~putmask); |
678 |
|
141237 |
*put |= pixel & putmask; |
679 |
|
|
} |
680 |
|
|
|
681 |
|
199095 |
putmask >>= 4; |
682 |
✓✓ |
199095 |
if (putmask == 0) |
683 |
|
|
{ |
684 |
|
99450 |
putmask = 0xf0; |
685 |
|
99450 |
put++; |
686 |
|
|
} |
687 |
|
|
} |
688 |
|
780 |
putrow += putstride; |
689 |
|
|
} |
690 |
|
|
} |
691 |
✓✓ |
8 |
else if (angle == 180) |
692 |
|
|
{ |
693 |
|
4 |
width = pixelmap -> gx_pixelmap_width; |
694 |
|
4 |
height = pixelmap -> gx_pixelmap_height; |
695 |
|
|
|
696 |
|
4 |
newxpos = xpos + cx - (width - 1 - cx); |
697 |
|
4 |
newypos = ypos + cy - (height - 1 - cy); |
698 |
|
|
|
699 |
✓✓ |
796 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
700 |
|
|
{ |
701 |
|
792 |
put = putrow; |
702 |
✓✓ |
792 |
if (clip -> gx_rectangle_left & 1) |
703 |
|
|
{ |
704 |
|
244 |
putmask = 0x0f; |
705 |
|
|
} |
706 |
|
|
else |
707 |
|
|
{ |
708 |
|
548 |
putmask = 0xf0; |
709 |
|
|
} |
710 |
✓✓ |
155232 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
711 |
|
|
{ |
712 |
|
154440 |
gettransmask = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
713 |
|
154440 |
gettransmask += (height - 1 - y) * getauxstride; |
714 |
|
154440 |
gettransmask += (width - 1 - x) >> 3; |
715 |
|
|
|
716 |
|
|
/* Calculate and go ot the transmask bit.*/ |
717 |
|
154440 |
transmask = (GX_UBYTE)(0x80 >> ((width - 1 - x) & 0x07)); |
718 |
|
|
/* if not transparent, draw pixel. else skip. */ |
719 |
✓✓ |
154440 |
if (!(transmask & (*gettransmask))) |
720 |
|
|
{ |
721 |
|
110800 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
722 |
|
110800 |
get += (height - 1 - y) * getstride; |
723 |
|
110800 |
get += (width - 1 - x) >> 1; |
724 |
|
|
|
725 |
✓✓ |
110800 |
if ((width - 1 - x) & 1) |
726 |
|
|
{ |
727 |
|
55384 |
pixel = *get & 0x0f; |
728 |
|
|
} |
729 |
|
|
else |
730 |
|
|
{ |
731 |
|
55416 |
pixel = *get >> 4; |
732 |
|
|
} |
733 |
|
110800 |
pixel |= (GX_UBYTE)(pixel << 4); |
734 |
|
|
|
735 |
|
110800 |
*put &= (GX_UBYTE)(~putmask); |
736 |
|
110800 |
*put |= pixel & putmask; |
737 |
|
|
} |
738 |
|
|
|
739 |
|
154440 |
putmask >>= 4; |
740 |
✓✓ |
154440 |
if (putmask == 0) |
741 |
|
|
{ |
742 |
|
77068 |
putmask = 0xf0; |
743 |
|
77068 |
put++; |
744 |
|
|
} |
745 |
|
|
} |
746 |
|
792 |
putrow += putstride; |
747 |
|
|
} |
748 |
|
|
} |
749 |
|
|
else |
750 |
|
|
{ |
751 |
|
4 |
height = pixelmap -> gx_pixelmap_width; |
752 |
|
|
|
753 |
|
4 |
newxpos = xpos + cx - cy; |
754 |
|
4 |
newypos = ypos + cx - (height - 1 - cy); |
755 |
|
|
|
756 |
✓✓ |
626 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
757 |
|
|
{ |
758 |
|
622 |
put = putrow; |
759 |
✓✓ |
622 |
if (clip -> gx_rectangle_left & 1) |
760 |
|
|
{ |
761 |
|
195 |
putmask = 0x0f; |
762 |
|
|
} |
763 |
|
|
else |
764 |
|
|
{ |
765 |
|
427 |
putmask = 0xf0; |
766 |
|
|
} |
767 |
|
|
|
768 |
✓✓ |
166696 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
769 |
|
|
{ |
770 |
|
166074 |
gettransmask = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
771 |
|
166074 |
gettransmask += x * getauxstride; |
772 |
|
166074 |
gettransmask += (height - 1 - y) >> 3; |
773 |
|
|
|
774 |
|
166074 |
transmask = (GX_UBYTE)(0x80 >> ((height - 1 - y) & 0x07)); |
775 |
|
|
/* if not transparent, draw pixel. else skip. */ |
776 |
✓✓ |
166074 |
if (!(transmask & (*gettransmask))) |
777 |
|
|
{ |
778 |
|
113735 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
779 |
|
113735 |
get += x * getstride; |
780 |
|
113735 |
get += (height - 1 - y) >> 1; |
781 |
|
|
|
782 |
✓✓ |
113735 |
if ((height - 1 - y) & 1) |
783 |
|
|
{ |
784 |
|
56789 |
pixel = *get & 0x0f; |
785 |
|
|
} |
786 |
|
|
else |
787 |
|
|
{ |
788 |
|
56946 |
pixel = *get >> 4; |
789 |
|
|
} |
790 |
|
113735 |
pixel |= (GX_UBYTE)(pixel << 4); |
791 |
|
|
|
792 |
|
113735 |
*put &= (GX_UBYTE)(~putmask); |
793 |
|
113735 |
*put |= pixel & putmask; |
794 |
|
|
} |
795 |
|
|
|
796 |
|
166074 |
putmask >>= 4; |
797 |
✓✓ |
166074 |
if (putmask == 0) |
798 |
|
|
{ |
799 |
|
82921 |
putmask = 0xf0; |
800 |
|
82921 |
put++; |
801 |
|
|
} |
802 |
|
|
} |
803 |
|
622 |
putrow += putstride; |
804 |
|
|
} |
805 |
|
|
} |
806 |
|
|
} |
807 |
|
|
|
808 |
|
|
/**************************************************************************/ |
809 |
|
|
/* */ |
810 |
|
|
/* FUNCTION RELEASE */ |
811 |
|
|
/* */ |
812 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate PORTABLE C */ |
813 |
|
|
/* 6.1 */ |
814 |
|
|
/* AUTHOR */ |
815 |
|
|
/* */ |
816 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
817 |
|
|
/* */ |
818 |
|
|
/* DESCRIPTION */ |
819 |
|
|
/* */ |
820 |
|
|
/* This service rotate a pixelmap directly to canvas memory. */ |
821 |
|
|
/* */ |
822 |
|
|
/* INPUT */ |
823 |
|
|
/* */ |
824 |
|
|
/* context Drawing context */ |
825 |
|
|
/* xpos x-coord of top-left draw point*/ |
826 |
|
|
/* ypos y-coord of top-left draw point*/ |
827 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
828 |
|
|
/* angle The angle to rotate */ |
829 |
|
|
/* rot_cx x-coord of rotating center. */ |
830 |
|
|
/* rot_cy y-coord of rotationg center. */ |
831 |
|
|
/* */ |
832 |
|
|
/* OUTPUT */ |
833 |
|
|
/* */ |
834 |
|
|
/* status Completion status */ |
835 |
|
|
/* */ |
836 |
|
|
/* CALLS */ |
837 |
|
|
/* */ |
838 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_transparent_rotate */ |
839 |
|
|
/* Real pixelmap rotate routine */ |
840 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_rotate */ |
841 |
|
|
/* Real pixelmap rotate routine */ |
842 |
|
|
/* _gx_display_driver_4bpp_pixelmap_transparent_rotate */ |
843 |
|
|
/* Real pixelmap rotate routine */ |
844 |
|
|
/* _gx_display_driver_4bpp_pixelmap_raw_rotate */ |
845 |
|
|
/* Real pixelmap rotate routine */ |
846 |
|
|
/* */ |
847 |
|
|
/* CALLED BY */ |
848 |
|
|
/* */ |
849 |
|
|
/* Application Code */ |
850 |
|
|
/* GUIX Internal Code */ |
851 |
|
|
/* */ |
852 |
|
|
/**************************************************************************/ |
853 |
|
1808 |
VOID _gx_display_driver_4bpp_pixelmap_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
854 |
|
|
INT angle, INT rot_cx, INT rot_cy) |
855 |
|
|
{ |
856 |
✓✓ |
1808 |
if (angle % 90 == 0) |
857 |
|
|
{ |
858 |
|
|
/* Simple angle rotate: 90 degree, 180 degree and 270 degree. */ |
859 |
✓✓ |
28 |
if (pixelmap -> gx_pixelmap_flags & GX_PIXELMAP_TRANSPARENT) |
860 |
|
|
{ |
861 |
|
13 |
_gx_display_driver_4bpp_pixelmap_simple_transparent_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
862 |
|
|
} |
863 |
|
|
else |
864 |
|
|
{ |
865 |
|
15 |
_gx_display_driver_4bpp_pixelmap_simple_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
866 |
|
|
} |
867 |
|
|
} |
868 |
|
|
else |
869 |
|
|
{ |
870 |
✓✓ |
1780 |
if (pixelmap -> gx_pixelmap_flags & GX_PIXELMAP_TRANSPARENT) |
871 |
|
|
{ |
872 |
|
|
/* no compression or alpha */ |
873 |
|
712 |
_gx_display_driver_4bpp_pixelmap_transparent_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
874 |
|
|
} |
875 |
|
|
else |
876 |
|
|
{ |
877 |
|
|
/* no compression or alpha */ |
878 |
|
1068 |
_gx_display_driver_4bpp_pixelmap_raw_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
879 |
|
|
} |
880 |
|
|
} |
881 |
|
|
|
882 |
|
1808 |
return; |
883 |
|
|
} |
884 |
|
|
|