45     * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
76  * Info about each format.
1537 _mesa_get_format_info(gl_format format)
1539    const struct gl_format_info *info = &format_info[format];
1540    assert(info->Name == format);
1545 /** Return string name of format (for debugging) */
1547 _mesa_get_format_name(gl_format format)
1549    const struct gl_format_info *info = _mesa_get_format_info(format);
1556  * Return bytes needed to store a block of pixels in the given format.
1563 _mesa_get_format_bytes(gl_format format)
1565    const struct gl_format_info *info = _mesa_get_format_info(format);
1568           _mesa_is_format_compressed(format));
1574  * Return bits per component for the given format.
1575  * \param format  one of MESA_FORMAT_x
1579 _mesa_get_format_bits(gl_format format, GLenum pname)
1581    const struct gl_format_info *info = _mesa_get_format_info(format);
1628 _mesa_get_format_max_bits(gl_format format)
1630    const struct gl_format_info *info = _mesa_get_format_info(format);
1644  * for the given format.
1653 _mesa_get_format_datatype(gl_format format)
1655    const struct gl_format_info *info = _mesa_get_format_info(format);
1661  * Return the basic format for the given type.  The result will be one of
1666 _mesa_get_format_base_format(gl_format format)
1668    const struct gl_format_info *info = _mesa_get_format_info(format);
1674  * Return the block size (in pixels) for the given format.  Normally
1681 _mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
1683    const struct gl_format_info *info = _mesa_get_format_info(format);
1689 /** Is the given format a compressed format? */
1691 _mesa_is_format_compressed(gl_format format)
1693    const struct gl_format_info *info = _mesa_get_format_info(format);
1699  * Determine if the given format represents a packed depth/stencil buffer.
1702 _mesa_is_format_packed_depth_stencil(gl_format format)
1704    const struct gl_format_info *info = _mesa_get_format_info(format);
1711  * Is the given format a signed/unsigned integer color format?
1714 _mesa_is_format_integer_color(gl_format format)
1716    const struct gl_format_info *info = _mesa_get_format_info(format);
1725  * Is the given format an unsigned integer format?
1728 _mesa_is_format_unsigned(gl_format format)
1730    const struct gl_format_info *info = _mesa_get_format_info(format);
1736  * Return color encoding for given format.
1740 _mesa_get_format_color_encoding(gl_format format)
1743    switch (format) {
1761  * For an sRGB format, return the corresponding linear color space format.
1762  * For non-sRGB formats, return the format as-is.
1765 _mesa_get_srgb_format_linear(gl_format format)
1767    switch (format) {
1769       format = MESA_FORMAT_RGB888;
1772       format = MESA_FORMAT_RGBA8888;
1775       format = MESA_FORMAT_ARGB8888;
1778       format = MESA_FORMAT_L8;
1781       format = MESA_FORMAT_AL88;
1784       format = MESA_FORMAT_RGB_DXT1;
1787       format = MESA_FORMAT_RGBA_DXT1;
1790       format = MESA_FORMAT_RGBA_DXT3;
1793       format = MESA_FORMAT_RGBA_DXT5;
1798    return format;
1803  * If the given format is a compressed format, return a corresponding
1804  * uncompressed format.
1807 _mesa_get_uncompressed_format(gl_format format)
1809    switch (format) {
1846       assert(!_mesa_is_format_compressed(format));
1848       return format;
1854 _mesa_format_num_components(gl_format format)
1856    const struct gl_format_info *info = _mesa_get_format_info(format);
1870  * in the given format.
1873 _mesa_format_image_size(gl_format format, GLsizei width,
1876    const struct gl_format_info *info = _mesa_get_format_info(format);
1879       /* compressed format (2D only for now) */
1899 _mesa_format_image_size64(gl_format format, GLsizei width,
1902    const struct gl_format_info *info = _mesa_get_format_info(format);
1905       /* compressed format (2D only for now) */
1925 _mesa_format_row_stride(gl_format format, GLsizei width)
1927    const struct gl_format_info *info = _mesa_get_format_info(format);
1930       /* compressed format */
1957       /* This function will emit a problem/warning if the format is
1966  * Do sanity checking of the format info table.
2061 _mesa_format_to_type_and_comps(gl_format format,
2064    switch (format) {
2529       _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
2530                     _mesa_get_format_name(format));
2540  * \param format  the user-specified image format
2547 				     GLenum format, GLenum type,
2552    /* Note: When reading a GL format/type combination, the format lists channel
2568       if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
2571       if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes)
2574       if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && !littleEndian)
2577       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV
2581       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8
2585       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && littleEndian)
2591       if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2595       if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
2598       if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && littleEndian)
2601       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8 &&
2605       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2609       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && !littleEndian)
2615       if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2619       if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
2622       if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && littleEndian)
2628       if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
2631       if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2635       if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && !littleEndian)
2649       return format == GL_BGR && type == GL_UNSIGNED_BYTE && littleEndian;
2652       return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
2655       return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 && !swapBytes;
2665       return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV &&
2672       return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1 &&
2676       return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV &&
2685       return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2690       return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian && !swapBytes;
2695       return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2;
2698       return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
2700       return format == GL_ALPHA && type == GL_UNSIGNED_SHORT &&
2703       return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
2705       return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT &&
2708       return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
2710       return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT &&
2718       return format == GL_RED && type == GL_UNSIGNED_BYTE;
2720       return format == GL_RG && type == GL_UNSIGNED_BYTE && littleEndian;
2725       return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian &&
2728       return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian &&
2734       return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV &&
2738       return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8 &&
2745       return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT &&
2752       return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT &&
2756       return format == GL_STENCIL_INDEX && type == GL_UNSIGNED_BYTE;
2778       return format == GL_RGBA && type == GL_FLOAT && !swapBytes;
2780       return format == GL_RGBA && type == GL_HALF_FLOAT && !swapBytes;
2783       return format == GL_RGB && type == GL_FLOAT && !swapBytes;
2785       return format == GL_RGB && type == GL_HALF_FLOAT && !swapBytes;
2788       return format == GL_ALPHA && type == GL_FLOAT && !swapBytes;
2790       return format == GL_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
2793       return format == GL_LUMINANCE && type == GL_FLOAT && !swapBytes;
2795       return format == GL_LUMINANCE && type == GL_HALF_FLOAT && !swapBytes;
2798       return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT && !swapBytes;
2800       return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
2803       return format == GL_INTENSITY && type == GL_FLOAT && !swapBytes;
2805       return format == GL_INTENSITY && type == GL_HALF_FLOAT && !swapBytes;
2808       return format == GL_RED && type == GL_FLOAT && !swapBytes;
2810       return format == GL_RED && type == GL_HALF_FLOAT && !swapBytes;
2813       return format == GL_RG && type == GL_FLOAT && !swapBytes;
2815       return format == GL_RG && type == GL_HALF_FLOAT && !swapBytes;
2885       if (format == GL_RGBA && type == GL_BYTE && !littleEndian)
2888       if (format == GL_ABGR_EXT && type == GL_BYTE && littleEndian)
2894       if (format == GL_RGBA && type == GL_BYTE && littleEndian)
2897       if (format == GL_ABGR_EXT && type == GL_BYTE && !littleEndian)
2937       return (format == GL_BGRA_INTEGER_EXT &&
2942       return (format == GL_RGBA_INTEGER_EXT &&
2947       return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV &&
2951       return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV &&
2955       return format == GL_DEPTH_COMPONENT && type == GL_FLOAT && !swapBytes;

Indexes created Sun Sep 10 09:05:34 CEST 2017