mirror of https://github.com/buggins/dlangui.git
371 lines
8.6 KiB
D
371 lines
8.6 KiB
D
// Manually created
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module std.c.linux.X11.xcb.image;
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import std.c.linux.X11.xcb.xcb;
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import std.c.linux.X11.xcb.shm;
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import std.c.linux.X11.xcb.xproto;
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import std.c.stdlib;
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import std.conv;
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struct xcb_image_t
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{
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ushort width;
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ushort height;
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xcb_image_format_t format;
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ubyte scanline_pad;
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ubyte depth;
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ubyte bpp;
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ubyte unit;
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uint plane_mask;
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xcb_image_order_t byte_order;
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xcb_image_order_t bit_order;
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uint stride;
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uint size;
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void * base;
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ubyte * data;
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}
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xcb_format_t *
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find_format_by_depth (xcb_setup_t *setup, ubyte depth)
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{
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xcb_format_t *fmt = xcb_setup_pixmap_formats(setup);
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xcb_format_t *fmtend = fmt + xcb_setup_pixmap_formats_length(setup);
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for(; fmt != fmtend; ++fmt)
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if(fmt.depth == depth)
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return fmt;
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return null;
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}
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xcb_image_format_t
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effective_format(xcb_image_format_t format, ubyte bpp)
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{
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if (format == XCB_IMAGE_FORMAT_Z_PIXMAP && bpp != 1)
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return format;
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return XCB_IMAGE_FORMAT_XY_PIXMAP;
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}
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int
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format_valid (ubyte depth, ubyte bpp, ubyte unit,
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xcb_image_format_t format, ubyte xpad)
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{
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xcb_image_format_t ef = effective_format(format, bpp);
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if (depth > bpp)
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return 0;
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switch(ef) {
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case XCB_IMAGE_FORMAT_XY_PIXMAP:
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switch(unit) {
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case 8:
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case 16:
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case 32:
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break;
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default:
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return 0;
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}
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if (xpad < bpp)
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return 0;
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switch (xpad) {
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case 8:
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case 16:
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case 32:
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break;
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default:
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return 0;
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}
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break;
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case XCB_IMAGE_FORMAT_Z_PIXMAP:
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switch (bpp) {
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case 4:
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if (unit != 8)
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return 0;
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break;
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case 8:
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case 16:
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case 24:
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case 32:
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if (unit != bpp)
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return 0;
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break;
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default:
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return 0;
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}
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break;
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default:
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return 0;
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}
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return 1;
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}
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int
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image_format_valid (xcb_image_t *image) {
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return format_valid(image.depth,
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image.bpp,
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image.unit,
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image.format,
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image.scanline_pad);
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}
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uint xcb_roundup(uint base,
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uint pad
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)
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{
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uint b = base + pad - 1;
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/* faster if pad is a power of two */
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if (((pad - 1) & pad) == 0)
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return b & -pad;
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return b - b % pad;
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}
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void
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xcb_image_annotate (xcb_image_t *image)
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{
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xcb_image_format_t ef = effective_format(image.format, image.bpp);
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switch (ef) {
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case XCB_IMAGE_FORMAT_XY_PIXMAP:
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image.stride = xcb_roundup(image.width, image.scanline_pad) >> 3;
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image.size = image.height * image.stride * image.depth;
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break;
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case XCB_IMAGE_FORMAT_Z_PIXMAP:
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image.stride = xcb_roundup(cast(uint)image.width *
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cast(uint)image.bpp,
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image.scanline_pad) >> 3;
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image.size = image.height * image.stride;
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break;
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default:
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assert(0);
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}
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}
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xcb_image_t *
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xcb_image_create_native (xcb_connection_t * c,
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ushort width,
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ushort height,
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xcb_image_format_t format,
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ubyte depth,
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void * base,
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uint bytes,
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ubyte * data)
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{
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xcb_setup_t * setup = xcb_get_setup(c);
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xcb_format_t * fmt;
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xcb_image_format_t ef = format;
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if (ef == XCB_IMAGE_FORMAT_Z_PIXMAP && depth == 1)
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ef = XCB_IMAGE_FORMAT_XY_PIXMAP;
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switch (ef) {
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case XCB_IMAGE_FORMAT_XY_BITMAP:
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if (depth != 1)
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return null;
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/* fall through */
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goto case;
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case XCB_IMAGE_FORMAT_XY_PIXMAP:
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if (depth > 1) {
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fmt = find_format_by_depth(setup, depth);
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if (!fmt)
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return null;
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}
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return xcb_image_create(width, height, format,
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setup.bitmap_format_scanline_pad,
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depth, depth, setup.bitmap_format_scanline_unit,
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setup.image_byte_order,
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setup.bitmap_format_bit_order,
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base, bytes, data);
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case XCB_IMAGE_FORMAT_Z_PIXMAP:
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fmt = find_format_by_depth(setup, depth);
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if (!fmt)
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return null;
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return xcb_image_create(width, height, format,
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fmt.scanline_pad,
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fmt.depth, fmt.bits_per_pixel, 0,
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setup.image_byte_order,
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XCB_IMAGE_ORDER_MSB_FIRST,
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base, bytes, data);
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default:
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assert(0);
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}
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assert(0);
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}
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uint xcb_mask(uint n)
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{
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return n == 32 ? ~0 : (1 << n) - 1;
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}
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xcb_image_t *
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xcb_image_create (ushort width,
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ushort height,
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xcb_image_format_t format,
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ubyte xpad,
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ubyte depth,
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ubyte bpp,
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ubyte unit,
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xcb_image_order_t byte_order,
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xcb_image_order_t bit_order,
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void * base,
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uint bytes,
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ubyte * data)
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{
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xcb_image_t * image;
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if (unit == 0) {
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switch (format) {
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case XCB_IMAGE_FORMAT_XY_BITMAP:
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case XCB_IMAGE_FORMAT_XY_PIXMAP:
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unit = 32;
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break;
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case XCB_IMAGE_FORMAT_Z_PIXMAP:
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if (bpp == 1) {
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unit = 32;
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break;
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}
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if (bpp < 8) {
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unit = 8;
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break;
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}
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unit = bpp;
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break;
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default:
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break;
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}
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}
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if (!format_valid(depth, bpp, unit, format, xpad))
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return null;
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import std.c.stdlib;
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image = cast(xcb_image_t*)malloc(xcb_image_t.sizeof);
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if (image is null)
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return null;
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image.width = width;
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image.height = height;
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image.format = format;
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image.scanline_pad = xpad;
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image.depth = depth;
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image.bpp = bpp;
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image.unit = unit;
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image.plane_mask = xcb_mask(depth);
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image.byte_order = byte_order;
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image.bit_order = bit_order;
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xcb_image_annotate(image);
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/*
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* Ways this function can be called:
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* * with data: we fail if bytes isn't
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* large enough, else leave well enough alone.
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* * with base and !data: if bytes is zero, we
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* default; otherwise we fail if bytes isn't
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* large enough, else fill in data
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* * with !base and !data: we malloc storage
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* for the data, save that address as the base,
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* and fail if malloc does.
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*
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* When successful, we establish the invariant that data
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* points at sufficient storage that may have been
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* supplied, and base is set iff it should be
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* auto-freed when the image is destroyed.
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*
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* Except as a special case when base = 0 && data == 0 &&
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* bytes == ~0 we just return the image structure and let
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* the caller deal with getting the allocation right.
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*/
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if (!base && !data && bytes == ~0) {
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image.base = null;
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image.data = null;
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return image;
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}
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if (!base && data && bytes == 0)
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bytes = image.size;
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image.base = base;
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image.data = data;
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if (!image.data) {
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if (image.base) {
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image.data = cast(ubyte*)image.base;
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} else {
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bytes = image.size;
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image.base = malloc(bytes);
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image.data = cast(ubyte*)image.base;
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}
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}
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if (!image.data || bytes < image.size) {
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free(image);
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return null;
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}
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return image;
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}
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void
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xcb_image_destroy (xcb_image_t *image)
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{
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if (image.base)
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free (image.base);
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free (image);
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}
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ubyte
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xcb_aux_get_depth(xcb_connection_t *c,
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xcb_screen_t *screen)
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{
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xcb_drawable_t drawable;
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xcb_get_geometry_reply_t *geom;
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ubyte depth;
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drawable = screen.root;
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geom = xcb_get_geometry_reply (c, xcb_get_geometry(c, drawable), null);
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if (!geom) {
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//Log.e("GetGeometry(root) failed");
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exit (0);
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}
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depth = geom.depth;
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free (geom);
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return depth;
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}
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extern (C) int xcb_image_shm_get(xcb_connection_t * conn,
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xcb_drawable_t draw,
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xcb_image_t * image,
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xcb_shm_segment_info_t shminfo,
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ushort x,
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ushort y,
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uint plane_mask);
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const XCB_ALL_PLANES = ~0;
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extern (C) xcb_image_t *
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xcb_image_shm_put (xcb_connection_t * conn,
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xcb_drawable_t draw,
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xcb_gcontext_t gc,
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xcb_image_t * image,
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xcb_shm_segment_info_t shminfo,
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short src_x,
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short src_y,
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short dest_x,
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short dest_y,
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ushort src_width,
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ushort src_height,
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ubyte send_event);
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/**
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* @struct xcb_shm_segment_info_t
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* A structure that stores the informations needed by the MIT Shm
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* Extension.
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*/
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struct xcb_shm_segment_info_t
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{
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xcb_shm_seg_t shmseg;
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uint shmid;
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ubyte *shmaddr;
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}
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alias int key_t;
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extern (C) int shmget(key_t key, size_t size, int shmflg);
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extern (C) int getpagesize();
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extern (C) ubyte *shmat(int shmid, ubyte *shmaddr, int shmflg);
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extern (C) int shmctl(int shmid, int cmd, void *buf);
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const IPC_CREAT = octal!1000;
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const IPC_PRIVATE = (cast(key_t) 0);
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const IPC_RMID = 0;
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