60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
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// 27 june 2016
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#include "uipriv_unix.h"
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struct uiImage {
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double width;
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double height;
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GPtrArray *images;
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};
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static void freeImageRep(gpointer item)
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{
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cairo_surface_t *cs = (cairo_surface_t *) item;
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unsigned char *buf;
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buf = cairo_image_surface_get_data(cs);
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cairo_surface_destroy(cs);
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uiFree(buf);
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}
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uiImage *uiNewImage(double width, double height)
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{
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uiImage *i;
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i = uiNew(uiImage);
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i->width = width;
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i->height = height;
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i->images = g_ptr_array_new_with_free_func(g_object_unref);
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return i;
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}
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void uiFreeImage(uiImage *i)
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{
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g_ptr_array_free(i->images, TRUE);
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uiFree(i);
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}
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void uiImageAppend(uiImage *i, void *pixels, int pixelWidth, int pixelHeight, int pixelStride)
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{
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cairo_surface_t *cs;
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unsigned char *buf, *p;
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uint8_t *src = (uint8_t *) pixels;
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int cstride;
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int y;
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cstride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, pixelWidth);
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buf = (unsigned char *) uiAlloc((cstride * pixelHeight * 4) * sizeof (unsigned char), "unsigned char[]");
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p = buf;
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for (y = 0; y < pixelWidth * pixelHeight; y += pixelStride) {
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memmove(p, src + y, cstride);
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p += cstride;
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}
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cs = cairo_image_surface_create_for_data(buf, CAIRO_FORMAT_ARGB32,
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pixelWidth, pixelHeight,
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cstride);
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if (cairo_surface_status(cs) != CAIRO_STATUS_SUCCESS)
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/* TODO */;
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cairo_surface_flush(cs);
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g_ptr_array_add(i->images, cs);
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}
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