update PNG image code.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@869 bbd45198-f89e-11dd-88c7-29a3b14d5316
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@ -54,6 +54,19 @@ static rt_bool_t rtgui_image_png_process(png_structp png_ptr, png_infop info_ptr
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switch (info_ptr->color_type)
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{
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case PNG_COLOR_TYPE_RGB:
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for (y = 0; y < info_ptr->height; y++)
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{
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png_read_row(png_ptr, row, png_bytep_NULL);
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for (x = 0; x < info_ptr->width; x++)
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{
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data = &(row[x * 3]);
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ptr[x+y*info_ptr->width] = RTGUI_RGB(data[0], data[1], data[2]);
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}
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}
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break;
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case PNG_COLOR_TYPE_RGBA:
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for (y = 0; y < info_ptr->height; y++)
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{
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