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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_8bpp_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 alpha. */ |
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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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/* cx x-coord of rotate center */ |
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/* cy y-coord of rotate center */ |
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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_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_8bpp_pixelmap_rotate */ |
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/* */ |
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/**************************************************************************/ |
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static VOID _gx_display_driver_8bpp_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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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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putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
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putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
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putrow += clip -> gx_rectangle_left; |
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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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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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✓✓✓✓
✓✓ |
33660030 |
if ((xx >= 0) && (xx < pixelmap -> gx_pixelmap_width) && |
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✓✓ |
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(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 * pixelmap -> gx_pixelmap_width; |
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get += xx; |
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*put = *get; |
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} |
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33660030 |
put++; |
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} |
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putrow += context -> gx_draw_context_pitch; |
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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_8bpp_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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/* without alpha. */ |
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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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/* cx x-coord of rotate center */ |
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/* cy y-coord of rotate center */ |
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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_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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/* GUIX Internal Code */ |
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/* */ |
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/**************************************************************************/ |
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static VOID _gx_display_driver_8bpp_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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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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/* 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 * context -> gx_draw_context_pitch; |
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putrow += clip -> gx_rectangle_left; |
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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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✓✓ |
166985 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
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{ |
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166273 |
put = putrow; |
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✓✓ |
47657057 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
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{ |
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47490784 |
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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✓✓✓✓
✓✓ |
47490784 |
if ((xx >= 0) && (xx < pixelmap -> gx_pixelmap_width) && |
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✓✓ |
32244461 |
(yy >= 0) && (yy < pixelmap -> gx_pixelmap_height)) |
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{ |
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28538157 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
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get += yy * pixelmap -> gx_pixelmap_width; |
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get += xx; |
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✓✓ |
28538157 |
if ((*get) != pixelmap -> gx_pixelmap_transparent_color) |
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{ |
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20094500 |
*put = *get; |
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} |
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} |
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47490784 |
put++; |
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} |
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166273 |
putrow += context -> gx_draw_context_pitch; |
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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_8bpp_pixelmap_simple_rotate 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 help function that hangles 90, 180 and 270 degree pixelmap */ |
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/* rotation. */ |
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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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/* cx x-coord of rotate center */ |
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/* cy y-coord of rotate center */ |
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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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/* None */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_display_driver_8bpp_pixelmap_rotate */ |
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/* */ |
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/**************************************************************************/ |
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VOID _gx_display_driver_8bpp_pixelmap_simple_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 width; |
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INT height; |
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INT x; |
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INT y; |
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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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✓✓ |
12 |
if (angle == 90) |
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{ |
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width = pixelmap -> gx_pixelmap_height; |
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height = pixelmap -> gx_pixelmap_width; |
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newxpos = xpos + cx - (width - 1 - cy); |
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newypos = ypos + cy - cx; |
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putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
337 |
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putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
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putrow += clip -> gx_rectangle_left; |
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|
340 |
✓✓ |
943 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
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{ |
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|
939 |
put = putrow; |
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|
344 |
✓✓ |
119253 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
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{ |
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|
118314 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
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118314 |
get += (width - 1 - x) * height; |
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118314 |
get += y; |
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118314 |
*put++ = *get; |
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} |
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|
939 |
putrow += context -> gx_draw_context_pitch; |
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} |
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} |
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✓✓ |
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else if (angle == 180) |
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{ |
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width = pixelmap -> gx_pixelmap_width; |
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height = pixelmap -> gx_pixelmap_height; |
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newxpos = xpos + cx - (width - 1 - cx); |
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newypos = ypos + cy - (height - 1 - cy); |
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putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
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|
4 |
putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
367 |
|
4 |
putrow += clip -> gx_rectangle_left; |
368 |
|
|
|
369 |
✓✓ |
468 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
370 |
|
|
{ |
371 |
|
464 |
put = putrow; |
372 |
✓✓ |
96015 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
373 |
|
|
{ |
374 |
|
95551 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
375 |
|
95551 |
get += (height - 1 - y) * width; |
376 |
|
95551 |
get += width - 1 - x; |
377 |
|
|
|
378 |
|
95551 |
*put++ = *get; |
379 |
|
|
} |
380 |
|
|
|
381 |
|
464 |
putrow += context -> gx_draw_context_pitch; |
382 |
|
|
} |
383 |
|
|
} |
384 |
|
|
else |
385 |
|
|
{ |
386 |
|
4 |
height = pixelmap -> gx_pixelmap_width; |
387 |
|
|
|
388 |
|
4 |
newxpos = xpos + cx - cy; |
389 |
|
4 |
newypos = ypos + cx - (height - 1 - cy); |
390 |
|
|
|
391 |
|
4 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
392 |
|
4 |
putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
393 |
|
4 |
putrow += clip -> gx_rectangle_left; |
394 |
|
|
|
395 |
✓✓ |
696 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
396 |
|
|
{ |
397 |
|
692 |
put = putrow; |
398 |
|
|
|
399 |
✓✓ |
87884 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
400 |
|
|
{ |
401 |
|
87192 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
402 |
|
87192 |
get += x * height; |
403 |
|
87192 |
get += height - 1 - y; |
404 |
|
|
|
405 |
|
87192 |
*put++ = *get; |
406 |
|
|
} |
407 |
|
|
|
408 |
|
692 |
putrow += context -> gx_draw_context_pitch; |
409 |
|
|
} |
410 |
|
|
} |
411 |
|
12 |
} |
412 |
|
|
|
413 |
|
|
/**************************************************************************/ |
414 |
|
|
/* */ |
415 |
|
|
/* FUNCTION RELEASE */ |
416 |
|
|
/* */ |
417 |
|
|
/* _gx_display_driver_8bpp_pixelmap_simple_transparent_rotate */ |
418 |
|
|
/* PORTABLE C */ |
419 |
|
|
/* 6.1.7 */ |
420 |
|
|
/* AUTHOR */ |
421 |
|
|
/* */ |
422 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
423 |
|
|
/* */ |
424 |
|
|
/* DESCRIPTION */ |
425 |
|
|
/* */ |
426 |
|
|
/* Internal help function that hangles 90, 180 and 270 degree pixelmap */ |
427 |
|
|
/* rotation. */ |
428 |
|
|
/* */ |
429 |
|
|
/* INPUT */ |
430 |
|
|
/* */ |
431 |
|
|
/* context Drawing context */ |
432 |
|
|
/* xpos x-coord of top-left draw point*/ |
433 |
|
|
/* ypos y-coord of top-left draw point*/ |
434 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
435 |
|
|
/* angle The angle to rotate */ |
436 |
|
|
/* cx x-coord of rotate center */ |
437 |
|
|
/* cy y-coord of rotate center */ |
438 |
|
|
/* */ |
439 |
|
|
/* OUTPUT */ |
440 |
|
|
/* */ |
441 |
|
|
/* None */ |
442 |
|
|
/* */ |
443 |
|
|
/* CALLS */ |
444 |
|
|
/* */ |
445 |
|
|
/* None */ |
446 |
|
|
/* */ |
447 |
|
|
/* CALLED BY */ |
448 |
|
|
/* */ |
449 |
|
|
/* _gx_display_driver_8bpp_pixelmap_rotate */ |
450 |
|
|
/* */ |
451 |
|
|
/**************************************************************************/ |
452 |
|
6 |
static VOID _gx_display_driver_8bpp_pixelmap_simple_transparent_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
453 |
|
|
INT angle, INT cx, INT cy) |
454 |
|
|
{ |
455 |
|
|
GX_UBYTE *putrow; |
456 |
|
|
GX_UBYTE *put; |
457 |
|
|
GX_UBYTE *get; |
458 |
|
|
INT width; |
459 |
|
|
INT height; |
460 |
|
|
INT x; |
461 |
|
|
INT y; |
462 |
|
|
GX_RECTANGLE *clip; |
463 |
|
|
INT newxpos; |
464 |
|
|
INT newypos; |
465 |
|
|
|
466 |
|
6 |
clip = context -> gx_draw_context_clip; |
467 |
|
|
|
468 |
✓✓ |
6 |
if (angle == 90) |
469 |
|
|
{ |
470 |
|
2 |
width = pixelmap -> gx_pixelmap_height; |
471 |
|
2 |
height = pixelmap -> gx_pixelmap_width; |
472 |
|
|
|
473 |
|
2 |
newxpos = xpos + cx - (width - 1 - cy); |
474 |
|
2 |
newypos = ypos + cy - cx; |
475 |
|
|
|
476 |
|
2 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
477 |
|
2 |
putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
478 |
|
2 |
putrow += clip -> gx_rectangle_left; |
479 |
|
|
|
480 |
✓✓ |
392 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
481 |
|
|
{ |
482 |
|
390 |
put = putrow; |
483 |
|
|
|
484 |
✓✓ |
90675 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
485 |
|
|
{ |
486 |
|
90285 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
487 |
|
90285 |
get += (width - 1 - x) * height; |
488 |
|
90285 |
get += y; |
489 |
|
|
|
490 |
✓✓ |
90285 |
if ((*get) != pixelmap -> gx_pixelmap_transparent_color) |
491 |
|
|
{ |
492 |
|
67962 |
*put = *get; |
493 |
|
|
} |
494 |
|
90285 |
put++; |
495 |
|
|
} |
496 |
|
390 |
putrow += context -> gx_draw_context_pitch; |
497 |
|
|
} |
498 |
|
|
} |
499 |
✓✓ |
4 |
else if (angle == 180) |
500 |
|
|
{ |
501 |
|
|
|
502 |
|
2 |
width = pixelmap -> gx_pixelmap_width; |
503 |
|
2 |
height = pixelmap -> gx_pixelmap_height; |
504 |
|
|
|
505 |
|
2 |
newxpos = xpos + cx - (width - 1 - cx); |
506 |
|
2 |
newypos = ypos + cy - (height - 1 - cy); |
507 |
|
|
|
508 |
|
2 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
509 |
|
2 |
putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
510 |
|
2 |
putrow += clip -> gx_rectangle_left; |
511 |
|
|
|
512 |
✓✓ |
303 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
513 |
|
|
{ |
514 |
|
301 |
put = putrow; |
515 |
✓✓ |
58996 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
516 |
|
|
{ |
517 |
|
58695 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
518 |
|
58695 |
get += (height - 1 - y) * width; |
519 |
|
58695 |
get += width - 1 - x; |
520 |
|
|
|
521 |
✓✓ |
58695 |
if ((*get) != pixelmap -> gx_pixelmap_transparent_color) |
522 |
|
|
{ |
523 |
|
41070 |
*put = *get; |
524 |
|
|
} |
525 |
|
58695 |
put++; |
526 |
|
|
} |
527 |
|
|
|
528 |
|
301 |
putrow += context -> gx_draw_context_pitch; |
529 |
|
|
} |
530 |
|
|
} |
531 |
|
|
else |
532 |
|
|
{ |
533 |
|
2 |
height = pixelmap -> gx_pixelmap_width; |
534 |
|
|
|
535 |
|
2 |
newxpos = xpos + cx - cy; |
536 |
|
2 |
newypos = ypos + cx - (height - 1 - cy); |
537 |
|
|
|
538 |
|
2 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
539 |
|
2 |
putrow += clip -> gx_rectangle_top * context -> gx_draw_context_pitch; |
540 |
|
2 |
putrow += clip -> gx_rectangle_left; |
541 |
|
|
|
542 |
✓✓ |
231 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
543 |
|
|
{ |
544 |
|
229 |
put = putrow; |
545 |
|
|
|
546 |
✓✓ |
61372 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
547 |
|
|
{ |
548 |
|
61143 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
549 |
|
61143 |
get += x * height; |
550 |
|
61143 |
get += height - 1 - y; |
551 |
|
|
|
552 |
✓✓ |
61143 |
if ((*get) != pixelmap -> gx_pixelmap_transparent_color) |
553 |
|
|
{ |
554 |
|
40639 |
*put = *get; |
555 |
|
|
} |
556 |
|
61143 |
put++; |
557 |
|
|
} |
558 |
|
|
|
559 |
|
229 |
putrow += context -> gx_draw_context_pitch; |
560 |
|
|
} |
561 |
|
|
} |
562 |
|
6 |
} |
563 |
|
|
|
564 |
|
|
/**************************************************************************/ |
565 |
|
|
/* */ |
566 |
|
|
/* FUNCTION RELEASE */ |
567 |
|
|
/* */ |
568 |
|
|
/* _gx_display_driver_8bpp_pixelmap_rotate PORTABLE C */ |
569 |
|
|
/* 6.1 */ |
570 |
|
|
/* AUTHOR */ |
571 |
|
|
/* */ |
572 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
573 |
|
|
/* */ |
574 |
|
|
/* DESCRIPTION */ |
575 |
|
|
/* */ |
576 |
|
|
/* This service rotate a pixelmap directly to canvas memory. */ |
577 |
|
|
/* */ |
578 |
|
|
/* INPUT */ |
579 |
|
|
/* */ |
580 |
|
|
/* context Drawing context */ |
581 |
|
|
/* xpos x-coord of top-left draw point*/ |
582 |
|
|
/* ypos y-coord of top-left draw point*/ |
583 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
584 |
|
|
/* angle The angle to rotate */ |
585 |
|
|
/* rot_cx x-coord of rotating center. */ |
586 |
|
|
/* rot_cy y-coord of rotationg center. */ |
587 |
|
|
/* */ |
588 |
|
|
/* OUTPUT */ |
589 |
|
|
/* */ |
590 |
|
|
/* status Completion status */ |
591 |
|
|
/* */ |
592 |
|
|
/* CALLS */ |
593 |
|
|
/* */ |
594 |
|
|
/* _gx_display_driver_8bpp_pixelmap_simple_transparent_rotate */ |
595 |
|
|
/* Real display driver pixelmap */ |
596 |
|
|
/* roate function */ |
597 |
|
|
/* _gx_display_driver_8bpp_pixelmap_simple_rotate */ |
598 |
|
|
/* Real display driver pixelmap */ |
599 |
|
|
/* roate function */ |
600 |
|
|
/* _gx_display_driver_8bpp_pixelmap_transparent_rotate */ |
601 |
|
|
/* Real display driver pixelmap */ |
602 |
|
|
/* roate function */ |
603 |
|
|
/* _gx_display_driver_8bpp_pixelmap_raw_rotate */ |
604 |
|
|
/* Real display driver pixelmap */ |
605 |
|
|
/* roate function */ |
606 |
|
|
/* */ |
607 |
|
|
/* CALLED BY */ |
608 |
|
|
/* */ |
609 |
|
|
/* Application Code */ |
610 |
|
|
/* GUIX Internal Code */ |
611 |
|
|
/* */ |
612 |
|
|
/**************************************************************************/ |
613 |
|
1436 |
VOID _gx_display_driver_8bpp_pixelmap_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
614 |
|
|
INT angle, INT rot_cx, INT rot_cy) |
615 |
|
|
{ |
616 |
✓✓ |
1436 |
if (angle % 90 == 0) |
617 |
|
|
{ |
618 |
|
|
/* Simple angle rotate: 90 degree, 180 degree and 270 degree. */ |
619 |
✓✓ |
12 |
if (pixelmap -> gx_pixelmap_flags & GX_PIXELMAP_TRANSPARENT) |
620 |
|
|
{ |
621 |
|
6 |
_gx_display_driver_8bpp_pixelmap_simple_transparent_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
622 |
|
|
} |
623 |
|
|
else |
624 |
|
|
{ |
625 |
|
6 |
_gx_display_driver_8bpp_pixelmap_simple_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
626 |
|
|
} |
627 |
|
|
} |
628 |
|
|
else |
629 |
|
|
{ |
630 |
✓✓ |
1424 |
if (pixelmap -> gx_pixelmap_flags & GX_PIXELMAP_TRANSPARENT) |
631 |
|
|
{ |
632 |
|
|
/* no compression or alpha */ |
633 |
|
712 |
_gx_display_driver_8bpp_pixelmap_transparent_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
634 |
|
|
} |
635 |
|
|
else |
636 |
|
|
{ |
637 |
|
|
/* no compression or alpha */ |
638 |
|
712 |
_gx_display_driver_8bpp_pixelmap_raw_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
639 |
|
|
} |
640 |
|
|
} |
641 |
|
|
|
642 |
|
1436 |
return; |
643 |
|
|
} |
644 |
|
|
|