#include "pixel_format.h"

#include "config.h"

#ifdef HAVE_FBDEV
    #define FBDEV_FORMAT_FIELD_INITIALIZER(r_length, r_offset, g_length, g_offset, b_length, b_offset, a_length, a_offset) \
        .fbdev_format = {                                                                                                  \
            .r = { .length = r_length, .offset = r_offset, .msb_right = 0 },                                               \
            .g = { .length = g_length, .offset = g_offset, .msb_right = 0 },                                               \
            .b = { .length = b_length, .offset = b_offset, .msb_right = 0 },                                               \
            .a = { .length = a_length, .offset = a_offset, .msb_right = 0 },                                               \
        },
#else
    #define FBDEV_FORMAT_FIELD_INITIALIZER(r_length, r_offset, g_length, g_offset, b_length, b_offset, a_length, a_offset)
#endif

#ifdef HAVE_GBM
    #include <gbm.h>
    #define GBM_FORMAT_FIELD_INITIALIZER(_gbm_format) .gbm_format = _gbm_format,
#else
    #define GBM_FORMAT_FIELD_INITIALIZER(_gbm_format)
#endif

#ifdef HAVE_KMS
    #include <drm_fourcc.h>
    #define DRM_FORMAT_FIELD_INITIALIZER(_drm_format) .drm_format = _drm_format,
#else
    #define DRM_FORMAT_FIELD_INITIALIZER(_drm_format)
#endif

#ifdef HAVE_VULKAN
    #include "vulkan.h"
    #define VK_FORMAT_FIELD_INITIALIZER(_vk_format) .vk_format = _vk_format,
#else
    #define VK_FORMAT_FIELD_INITIALIZER(_vk_format)
#endif

// clang-format off
#define PIXFMT_MAPPING(                                                                                                  \
    _name,                                                                                                               \
    _arg_name,                                                                                                           \
    _format,                                                                                                             \
    _bpp,                                                                                                                \
    _bit_depth,                                                                                                          \
    _is_opaque,                                                                                                          \
    _vk_format,                                                                                                          \
    r_length,                                                                                                            \
    r_offset,                                                                                                            \
    g_length,                                                                                                            \
    g_offset,                                                                                                            \
    b_length,                                                                                                            \
    b_offset,                                                                                                            \
    a_length,                                                                                                            \
    a_offset,                                                                                                            \
    _gbm_format,                                                                                                         \
    _drm_format                                                                                                          \
) {                                                                                                                      \
      .name = _name,                                                                                                     \
      .arg_name = _arg_name,                                                                                             \
      .format = _format,                                                                                                 \
      .bits_per_pixel = _bpp,                                                                                            \
      .bit_depth = _bit_depth,                                                                                           \
      .is_opaque = _is_opaque,                                                                                           \
      VK_FORMAT_FIELD_INITIALIZER(_vk_format)                                                                            \
      FBDEV_FORMAT_FIELD_INITIALIZER(r_length, r_offset, g_length, g_offset, b_length, b_offset, a_length, a_offset)     \
      GBM_FORMAT_FIELD_INITIALIZER(_gbm_format) DRM_FORMAT_FIELD_INITIALIZER(_drm_format)                                \
},
// clang-format on

const struct pixfmt_info pixfmt_infos[] = { PIXFMT_LIST(PIXFMT_MAPPING) };

/// hack so we can use COMPILE_ASSERT.
enum { n_pixfmt_infos_constexpr = sizeof(pixfmt_infos) / sizeof(*pixfmt_infos) };

const size_t n_pixfmt_infos = n_pixfmt_infos_constexpr;

COMPILE_ASSERT(n_pixfmt_infos_constexpr == PIXFMT_MAX + 1);

#ifdef DEBUG
void assert_pixfmt_list_valid() {
    for (enum pixfmt format = 0; format < PIXFMT_COUNT; format++) {
        assert(pixfmt_infos[format].format == format);
    }
}
#endif