525 lines
12 KiB
C
525 lines
12 KiB
C
/**
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* RdTk: Remote Desktop Toolkit
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <winpr/config.h>
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#include <winpr/assert.h>
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#include <rdtk/config.h>
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#include "rdtk_resources.h"
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#include "rdtk_nine_patch.h"
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#if defined(WINPR_WITH_PNG)
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#define FILE_EXT "png"
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#else
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#define FILE_EXT "bmp"
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#endif
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static int rdtk_image_copy_alpha_blend(uint8_t* pDstData, int nDstStep, int nXDst, int nYDst,
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int nWidth, int nHeight, const uint8_t* pSrcData,
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int nSrcStep, int nXSrc, int nYSrc)
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{
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WINPR_ASSERT(pDstData);
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WINPR_ASSERT(pSrcData);
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for (int y = 0; y < nHeight; y++)
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{
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const uint8_t* pSrcPixel = &pSrcData[((nYSrc + y) * nSrcStep) + (nXSrc * 4)];
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uint8_t* pDstPixel = &pDstData[((nYDst + y) * nDstStep) + (nXDst * 4)];
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for (int x = 0; x < nWidth; x++)
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{
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uint8_t B = pSrcPixel[0];
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uint8_t G = pSrcPixel[1];
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uint8_t R = pSrcPixel[2];
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uint8_t A = pSrcPixel[3];
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pSrcPixel += 4;
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if (A == 255)
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{
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pDstPixel[0] = B;
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pDstPixel[1] = G;
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pDstPixel[2] = R;
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}
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else
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{
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R = (R * A) / 255;
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G = (G * A) / 255;
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B = (B * A) / 255;
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pDstPixel[0] = B + (pDstPixel[0] * (255 - A) + (255 / 2)) / 255;
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pDstPixel[1] = G + (pDstPixel[1] * (255 - A) + (255 / 2)) / 255;
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pDstPixel[2] = R + (pDstPixel[2] * (255 - A) + (255 / 2)) / 255;
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}
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pDstPixel[3] = 0xFF;
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pDstPixel += 4;
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}
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}
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return 1;
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}
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int rdtk_nine_patch_draw(rdtkSurface* surface, int nXDst, int nYDst, int nWidth, int nHeight,
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rdtkNinePatch* ninePatch)
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{
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WINPR_ASSERT(surface);
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WINPR_ASSERT(ninePatch);
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if (nWidth < ninePatch->width)
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nWidth = ninePatch->width;
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if (nHeight < ninePatch->height)
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nHeight = ninePatch->height;
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WINPR_UNUSED(nHeight);
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int scaleWidth = nWidth - (ninePatch->width - ninePatch->scaleWidth);
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int nSrcStep = ninePatch->scanline;
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const uint8_t* pSrcData = ninePatch->data;
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uint8_t* pDstData = surface->data;
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WINPR_ASSERT(surface->scanline <= INT_MAX);
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int nDstStep = (int)surface->scanline;
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/* top */
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int x = 0;
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int y = 0;
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/* top left */
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int nXSrc = 0;
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int nYSrc = 0;
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int width = ninePatch->scaleLeft;
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int height = ninePatch->scaleTop;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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x += width;
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/* top middle (scalable) */
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nXSrc = ninePatch->scaleLeft;
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nYSrc = 0;
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height = ninePatch->scaleTop;
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while (x < (nXSrc + scaleWidth))
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{
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width = (nXSrc + scaleWidth) - x;
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if (width > ninePatch->scaleWidth)
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width = ninePatch->scaleWidth;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height,
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pSrcData, nSrcStep, nXSrc, nYSrc);
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x += width;
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}
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/* top right */
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nXSrc = ninePatch->scaleRight;
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nYSrc = 0;
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width = ninePatch->width - ninePatch->scaleRight;
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height = ninePatch->scaleTop;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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/* middle */
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x = 0;
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y = ninePatch->scaleTop;
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/* middle left */
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nXSrc = 0;
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nYSrc = ninePatch->scaleTop;
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width = ninePatch->scaleLeft;
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height = ninePatch->scaleHeight;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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x += width;
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/* middle (scalable) */
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nXSrc = ninePatch->scaleLeft;
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nYSrc = ninePatch->scaleTop;
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height = ninePatch->scaleHeight;
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while (x < (nXSrc + scaleWidth))
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{
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width = (nXSrc + scaleWidth) - x;
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if (width > ninePatch->scaleWidth)
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width = ninePatch->scaleWidth;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height,
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pSrcData, nSrcStep, nXSrc, nYSrc);
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x += width;
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}
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/* middle right */
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nXSrc = ninePatch->scaleRight;
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nYSrc = ninePatch->scaleTop;
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width = ninePatch->width - ninePatch->scaleRight;
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height = ninePatch->scaleHeight;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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/* bottom */
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x = 0;
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y = ninePatch->scaleBottom;
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/* bottom left */
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nXSrc = 0;
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nYSrc = ninePatch->scaleBottom;
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width = ninePatch->scaleLeft;
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height = ninePatch->height - ninePatch->scaleBottom;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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x += width;
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/* bottom middle (scalable) */
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nXSrc = ninePatch->scaleLeft;
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nYSrc = ninePatch->scaleBottom;
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height = ninePatch->height - ninePatch->scaleBottom;
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while (x < (nXSrc + scaleWidth))
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{
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width = (nXSrc + scaleWidth) - x;
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if (width > ninePatch->scaleWidth)
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width = ninePatch->scaleWidth;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height,
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pSrcData, nSrcStep, nXSrc, nYSrc);
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x += width;
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}
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/* bottom right */
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nXSrc = ninePatch->scaleRight;
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nYSrc = ninePatch->scaleBottom;
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width = ninePatch->width - ninePatch->scaleRight;
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height = ninePatch->height - ninePatch->scaleBottom;
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rdtk_image_copy_alpha_blend(pDstData, nDstStep, nXDst + x, nYDst + y, width, height, pSrcData,
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nSrcStep, nXSrc, nYSrc);
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return 1;
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}
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static BOOL rdtk_nine_patch_get_scale_lr(rdtkNinePatch* ninePatch, wImage* image)
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{
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WINPR_ASSERT(image);
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WINPR_ASSERT(ninePatch);
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WINPR_ASSERT(image->data);
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WINPR_ASSERT(image->width > 0);
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int64_t beg = -1;
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int64_t end = -1;
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for (uint32_t x = 1; x < image->width - 1; x++)
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{
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const uint32_t* pixel = (const uint32_t*)&image->data[sizeof(uint32_t) * x]; /* (1, 0) */
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if (beg < 0)
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{
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if (*pixel)
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beg = x;
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = x;
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break;
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}
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}
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}
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if ((beg <= 0) || (end <= 0))
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return FALSE;
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WINPR_ASSERT(beg <= INT32_MAX);
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WINPR_ASSERT(end <= INT32_MAX);
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ninePatch->scaleLeft = (int32_t)beg - 1;
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ninePatch->scaleRight = (int32_t)end - 1;
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ninePatch->scaleWidth = ninePatch->scaleRight - ninePatch->scaleLeft;
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return TRUE;
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}
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static BOOL rdtk_nine_patch_get_scale_ht(rdtkNinePatch* ninePatch, wImage* image)
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{
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WINPR_ASSERT(image);
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WINPR_ASSERT(ninePatch);
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WINPR_ASSERT(image->data);
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WINPR_ASSERT(image->height > 0);
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WINPR_ASSERT(image->scanline > 0);
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int64_t beg = -1;
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int64_t end = -1;
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for (uint32_t y = 1; y < image->height - 1; y++)
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{
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const uint32_t* pixel =
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(const uint32_t*)&image->data[1ULL * image->scanline * y]; /* (1, 0) */
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if (beg < 0)
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{
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if (*pixel)
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beg = y;
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = y;
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break;
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}
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}
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}
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if ((beg <= 0) || (end <= 0))
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return FALSE;
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WINPR_ASSERT(beg <= INT32_MAX);
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WINPR_ASSERT(end <= INT32_MAX);
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ninePatch->scaleTop = (int32_t)beg - 1;
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ninePatch->scaleBottom = (int32_t)end - 1;
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ninePatch->scaleHeight = ninePatch->scaleBottom - ninePatch->scaleTop;
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return TRUE;
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}
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static BOOL rdtk_nine_patch_get_fill_lr(rdtkNinePatch* ninePatch, wImage* image)
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{
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WINPR_ASSERT(image);
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WINPR_ASSERT(ninePatch);
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WINPR_ASSERT(image->data);
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WINPR_ASSERT(image->width > 0);
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WINPR_ASSERT(image->height > 0);
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WINPR_ASSERT(image->scanline > 0);
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int64_t beg = -1;
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int64_t end = -1;
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for (uint32_t x = 1; x < image->width - 1; x++)
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{
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const uint32_t* pixel =
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(uint32_t*)&image->data[((1ULL * image->height - 1ULL) * image->scanline) +
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x * sizeof(uint32_t)]; /* (1, height - 1) */
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if (beg < 0)
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{
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if (*pixel)
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beg = x;
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = x;
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break;
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}
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}
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}
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if ((beg <= 0) || (end <= 0))
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return FALSE;
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WINPR_ASSERT(beg <= INT32_MAX);
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WINPR_ASSERT(end <= INT32_MAX);
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ninePatch->fillLeft = (int32_t)beg - 1;
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ninePatch->fillRight = (int32_t)end - 1;
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ninePatch->fillWidth = ninePatch->fillRight - ninePatch->fillLeft;
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return TRUE;
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}
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static BOOL rdtk_nine_patch_get_fill_ht(rdtkNinePatch* ninePatch, wImage* image)
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{
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WINPR_ASSERT(image);
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WINPR_ASSERT(ninePatch);
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WINPR_ASSERT(image->data);
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WINPR_ASSERT(image->width > 0);
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WINPR_ASSERT(image->height > 0);
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WINPR_ASSERT(image->scanline > 0);
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int64_t beg = -1;
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int64_t end = -1;
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for (uint32_t y = 1; y < image->height - 1; y++)
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{
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const uint32_t* pixel =
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(uint32_t*)&image->data[((image->width - 1) * sizeof(uint32_t)) +
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1ull * image->scanline * y]; /* (width - 1, 1) */
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if (beg < 0)
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{
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if (*pixel)
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beg = y;
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}
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else if (end < 0)
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{
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if (!(*pixel))
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{
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end = y;
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break;
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}
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}
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}
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if ((beg <= 0) || (end <= 0))
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return FALSE;
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WINPR_ASSERT(beg <= INT32_MAX);
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WINPR_ASSERT(end <= INT32_MAX);
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ninePatch->scaleTop = (int32_t)beg - 1;
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ninePatch->scaleBottom = (int32_t)end - 1;
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ninePatch->scaleHeight = ninePatch->scaleBottom - ninePatch->scaleTop;
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return TRUE;
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}
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int rdtk_nine_patch_set_image(rdtkNinePatch* ninePatch, wImage* image)
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{
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WINPR_ASSERT(image);
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WINPR_ASSERT(ninePatch);
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ninePatch->image = image;
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/* parse scalable area */
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if (!rdtk_nine_patch_get_scale_lr(ninePatch, image))
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return -1;
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if (!rdtk_nine_patch_get_scale_ht(ninePatch, image))
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return -1;
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/* parse fillable area */
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if (!rdtk_nine_patch_get_fill_lr(ninePatch, image))
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return -1;
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if (!rdtk_nine_patch_get_fill_ht(ninePatch, image))
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return -1;
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/* cut out borders from image */
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WINPR_ASSERT(image->width >= 2);
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WINPR_ASSERT(image->height >= 2);
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WINPR_ASSERT(image->scanline > 0);
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WINPR_ASSERT(image->width <= INT32_MAX);
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WINPR_ASSERT(image->height <= INT32_MAX);
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WINPR_ASSERT(image->scanline <= INT32_MAX);
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WINPR_ASSERT(image->data);
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ninePatch->width = (int32_t)image->width - 2;
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ninePatch->height = (int32_t)image->height - 2;
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ninePatch->data = &image->data[image->scanline + 4]; /* (1, 1) */
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ninePatch->scanline = (int32_t)image->scanline;
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return 1;
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}
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rdtkNinePatch* rdtk_nine_patch_new(rdtkEngine* engine)
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{
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WINPR_ASSERT(engine);
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rdtkNinePatch* ninePatch = (rdtkNinePatch*)calloc(1, sizeof(rdtkNinePatch));
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if (!ninePatch)
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return NULL;
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ninePatch->engine = engine;
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return ninePatch;
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}
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void rdtk_nine_patch_free(rdtkNinePatch* ninePatch)
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{
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if (!ninePatch)
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return;
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winpr_image_free(ninePatch->image, TRUE);
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free(ninePatch);
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}
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int rdtk_nine_patch_engine_init(rdtkEngine* engine)
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{
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int status = 0;
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wImage* image = NULL;
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rdtkNinePatch* ninePatch = NULL;
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WINPR_ASSERT(engine);
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if (!engine->button9patch)
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{
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SSIZE_T size = 0;
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const uint8_t* data = NULL;
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status = -1;
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size = rdtk_get_embedded_resource_file("btn_default_normal.9." FILE_EXT, &data);
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if (size > 0)
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{
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image = winpr_image_new();
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if (image)
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status = winpr_image_read_buffer(image, data, (size_t)size);
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}
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if (status > 0)
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{
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ninePatch = engine->button9patch = rdtk_nine_patch_new(engine);
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if (ninePatch)
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rdtk_nine_patch_set_image(ninePatch, image);
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else
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winpr_image_free(image, TRUE);
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}
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else
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winpr_image_free(image, TRUE);
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}
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if (!engine->textField9patch)
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{
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SSIZE_T size = 0;
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const uint8_t* data = NULL;
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status = -1;
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size = rdtk_get_embedded_resource_file("textfield_default.9." FILE_EXT, &data);
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image = NULL;
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if (size > 0)
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{
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image = winpr_image_new();
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if (image)
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status = winpr_image_read_buffer(image, data, (size_t)size);
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}
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if (status > 0)
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{
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ninePatch = engine->textField9patch = rdtk_nine_patch_new(engine);
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if (ninePatch)
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rdtk_nine_patch_set_image(ninePatch, image);
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else
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winpr_image_free(image, TRUE);
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}
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else
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winpr_image_free(image, TRUE);
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}
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return 1;
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}
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int rdtk_nine_patch_engine_uninit(rdtkEngine* engine)
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{
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WINPR_ASSERT(engine);
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if (engine->button9patch)
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{
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rdtk_nine_patch_free(engine->button9patch);
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engine->button9patch = NULL;
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}
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if (engine->textField9patch)
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{
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rdtk_nine_patch_free(engine->textField9patch);
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engine->textField9patch = NULL;
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}
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return 1;
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}
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