weston/libweston/pixel-formats.c
Robert Mader 3c9e9d721e pixel-formats: Add P010/P012/P016 formats
They are the 10/12/16bit equivalents of NV12 and at least P010 is widely
supported for a while now, so let's support them.

Signed-off-by: Robert Mader <robert.mader@collabora.com>
2023-09-07 15:44:13 +02:00

825 lines
17 KiB
C

/*
* Copyright © 2016, 2019 Collabora, Ltd.
* Copyright (c) 2018 DisplayLink (UK) Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Daniel Stone <daniels@collabora.com>
*/
#include "config.h"
#include <endian.h>
#include <inttypes.h>
#include <stdbool.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <wayland-client-protocol.h>
#include <xf86drm.h>
#include "shared/helpers.h"
#include "shared/string-helpers.h"
#include "shared/weston-drm-fourcc.h"
#include "shared/xalloc.h"
#include "wayland-util.h"
#include "pixel-formats.h"
#ifdef ENABLE_EGL
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <GLES3/gl3.h>
#define GL_INTERNALFORMAT(fmt) .gl_internalformat = (fmt)
#define GL_FORMAT(fmt) .gl_format = (fmt)
#define GL_TYPE(type) .gl_type = (type)
#define SAMPLER_TYPE(type) .sampler_type = (type)
#else
#define GL_INTERNALFORMAT(fmt) .gl_internalformat = 0
#define GL_FORMAT(fmt) .gl_format = 0
#define GL_TYPE(type) .gl_type = 0
#define SAMPLER_TYPE(type) .sampler_type = 0
#endif
#define DRM_FORMAT(f) .format = DRM_FORMAT_ ## f, .drm_format_name = #f
#define BITS_RGBA_FIXED(r_, g_, b_, a_) \
.bits.r = r_, \
.bits.g = g_, \
.bits.b = b_, \
.bits.a = a_, \
.component_type = PIXEL_COMPONENT_TYPE_FIXED
#define BITS_RGBA_FLOAT(r_, g_, b_, a_) \
.bits.r = r_, \
.bits.g = g_, \
.bits.b = b_, \
.bits.a = a_, \
.component_type = PIXEL_COMPONENT_TYPE_FLOAT
#define PIXMAN_FMT(fmt) .pixman_format = (PIXMAN_ ## fmt)
#include "shared/weston-egl-ext.h"
/**
* Table of DRM formats supported by Weston; RGB, ARGB and YUV formats are
* supported. Indexed/greyscale formats, and formats not containing complete
* colour channels, are not supported.
*/
static const struct pixel_format_info pixel_format_table[] = {
{
DRM_FORMAT(R8),
BITS_RGBA_FIXED(8, 0, 0, 0),
.bpp = 8,
.hide_from_clients = true,
GL_FORMAT(GL_R8_EXT),
GL_TYPE(GL_UNSIGNED_BYTE),
},
{
DRM_FORMAT(GR88),
BITS_RGBA_FIXED(8, 8, 0, 0),
.bpp = 16,
.hide_from_clients = true,
GL_FORMAT(GL_RG8_EXT),
GL_TYPE(GL_UNSIGNED_BYTE),
},
{
DRM_FORMAT(XRGB4444),
BITS_RGBA_FIXED(4, 4, 4, 0),
.bpp = 16,
},
{
DRM_FORMAT(ARGB4444),
BITS_RGBA_FIXED(4, 4, 4, 4),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_XRGB4444,
},
{
DRM_FORMAT(XBGR4444),
BITS_RGBA_FIXED(4, 4, 4, 0),
.bpp = 16,
},
{
DRM_FORMAT(ABGR4444),
BITS_RGBA_FIXED(4, 4, 4, 4),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_XBGR4444,
},
{
DRM_FORMAT(RGBX4444),
BITS_RGBA_FIXED(4, 4, 4, 0),
.bpp = 16,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_SHORT_4_4_4_4),
#endif
},
{
DRM_FORMAT(RGBA4444),
BITS_RGBA_FIXED(4, 4, 4, 4),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_RGBX4444,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_SHORT_4_4_4_4),
#endif
},
{
DRM_FORMAT(BGRX4444),
BITS_RGBA_FIXED(4, 4, 4, 0),
.bpp = 16,
},
{
DRM_FORMAT(BGRA4444),
BITS_RGBA_FIXED(4, 4, 4, 4),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_BGRX4444,
},
{
DRM_FORMAT(XRGB1555),
BITS_RGBA_FIXED(5, 5, 5, 0),
.addfb_legacy_depth = 15,
.bpp = 16,
},
{
DRM_FORMAT(ARGB1555),
BITS_RGBA_FIXED(5, 5, 5, 1),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_XRGB1555,
},
{
DRM_FORMAT(XBGR1555),
BITS_RGBA_FIXED(5, 5, 5, 0),
.bpp = 16,
},
{
DRM_FORMAT(ABGR1555),
BITS_RGBA_FIXED(5, 5, 5, 1),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_XBGR1555,
},
{
DRM_FORMAT(RGBX5551),
BITS_RGBA_FIXED(5, 5, 5, 0),
.bpp = 16,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_SHORT_5_5_5_1),
#endif
},
{
DRM_FORMAT(RGBA5551),
BITS_RGBA_FIXED(5, 5, 5, 1),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_RGBX5551,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_SHORT_5_5_5_1),
#endif
},
{
DRM_FORMAT(BGRX5551),
BITS_RGBA_FIXED(5, 5, 5, 0),
.bpp = 16,
},
{
DRM_FORMAT(BGRA5551),
BITS_RGBA_FIXED(5, 5, 5, 1),
.bpp = 16,
.opaque_substitute = DRM_FORMAT_BGRX5551,
},
{
DRM_FORMAT(RGB565),
BITS_RGBA_FIXED(5, 6, 5, 0),
.addfb_legacy_depth = 16,
.bpp = 16,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGB),
GL_TYPE(GL_UNSIGNED_SHORT_5_6_5),
PIXMAN_FMT(r5g6b5),
#endif
},
{
DRM_FORMAT(BGR565),
BITS_RGBA_FIXED(5, 6, 5, 0),
.bpp = 16,
},
{
DRM_FORMAT(RGB888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 24,
},
{
DRM_FORMAT(BGR888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 24,
GL_FORMAT(GL_RGB),
GL_TYPE(GL_UNSIGNED_BYTE),
},
{
DRM_FORMAT(XRGB8888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.addfb_legacy_depth = 24,
.bpp = 32,
GL_INTERNALFORMAT(GL_RGB8),
GL_FORMAT(GL_BGRA_EXT),
GL_TYPE(GL_UNSIGNED_BYTE),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(x8r8g8b8),
#else
PIXMAN_FMT(b8g8r8x8),
#endif
},
{
DRM_FORMAT(ARGB8888),
BITS_RGBA_FIXED(8, 8, 8, 8),
.opaque_substitute = DRM_FORMAT_XRGB8888,
.addfb_legacy_depth = 32,
.bpp = 32,
GL_INTERNALFORMAT(GL_RGBA8),
GL_FORMAT(GL_BGRA_EXT),
GL_TYPE(GL_UNSIGNED_BYTE),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(a8r8g8b8),
#else
PIXMAN_FMT(b8g8r8a8),
#endif
},
{
DRM_FORMAT(XBGR8888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 32,
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_BYTE),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(x8b8g8r8),
#else
PIXMAN_FMT(r8g8b8x8),
#endif
},
{
DRM_FORMAT(ABGR8888),
BITS_RGBA_FIXED(8, 8, 8, 8),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_XBGR8888,
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_BYTE),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(a8b8g8r8),
#else
PIXMAN_FMT(r8g8b8a8),
#endif
},
{
DRM_FORMAT(RGBX8888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 32,
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(r8g8b8x8),
#else
PIXMAN_FMT(x8b8g8r8),
#endif
},
{
DRM_FORMAT(RGBA8888),
BITS_RGBA_FIXED(8, 8, 8, 8),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_RGBX8888,
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(r8g8b8a8),
#else
PIXMAN_FMT(a8b8g8r8),
#endif
},
{
DRM_FORMAT(BGRX8888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 32,
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(b8g8r8x8),
#else
PIXMAN_FMT(x8r8g8b8),
#endif
},
{
DRM_FORMAT(BGRA8888),
BITS_RGBA_FIXED(8, 8, 8, 8),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_BGRX8888,
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(b8g8r8a8),
#else
PIXMAN_FMT(a8r8g8b8),
#endif
},
{
DRM_FORMAT(XRGB2101010),
BITS_RGBA_FIXED(10, 10, 10, 0),
.addfb_legacy_depth = 30,
.bpp = 32,
GL_INTERNALFORMAT(GL_RGB10_A2),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(x2r10g10b10),
#endif
},
{
DRM_FORMAT(ARGB2101010),
BITS_RGBA_FIXED(10, 10, 10, 2),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_XRGB2101010,
GL_INTERNALFORMAT(GL_RGB10_A2),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(a2r10g10b10),
#endif
},
{
DRM_FORMAT(XBGR2101010),
BITS_RGBA_FIXED(10, 10, 10, 0),
.bpp = 32,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_INT_2_10_10_10_REV_EXT),
PIXMAN_FMT(x2b10g10r10),
#endif
},
{
DRM_FORMAT(ABGR2101010),
BITS_RGBA_FIXED(10, 10, 10, 2),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_XBGR2101010,
# if __BYTE_ORDER == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_INT_2_10_10_10_REV_EXT),
PIXMAN_FMT(a2b10g10r10),
#endif
},
{
DRM_FORMAT(RGBX1010102),
BITS_RGBA_FIXED(10, 10, 10, 0),
.bpp = 32,
},
{
DRM_FORMAT(RGBA1010102),
BITS_RGBA_FIXED(10, 10, 10, 2),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_RGBX1010102,
},
{
DRM_FORMAT(BGRX1010102),
BITS_RGBA_FIXED(10, 10, 10, 0),
.bpp = 32,
},
{
DRM_FORMAT(BGRA1010102),
BITS_RGBA_FIXED(10, 10, 10, 2),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_BGRX1010102,
},
{
DRM_FORMAT(XBGR16161616),
BITS_RGBA_FIXED(16, 16, 16, 0),
.bpp = 64,
#if __BYTE_ORDER__ == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA16_EXT),
GL_TYPE(GL_UNSIGNED_SHORT),
#endif
},
{
DRM_FORMAT(ABGR16161616),
BITS_RGBA_FIXED(16, 16, 16, 16),
.bpp = 64,
.opaque_substitute = DRM_FORMAT_XBGR16161616,
#if __BYTE_ORDER__ == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA16_EXT),
GL_TYPE(GL_UNSIGNED_SHORT),
#endif
},
{
DRM_FORMAT(XBGR16161616F),
BITS_RGBA_FLOAT(16, 16, 16, 0),
.bpp = 64,
#if __BYTE_ORDER__ == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA16F),
GL_TYPE(GL_HALF_FLOAT),
#endif
},
{
DRM_FORMAT(ABGR16161616F),
BITS_RGBA_FLOAT(16, 16, 16, 16),
.bpp = 64,
.opaque_substitute = DRM_FORMAT_XBGR16161616F,
#if __BYTE_ORDER__ == __LITTLE_ENDIAN
GL_FORMAT(GL_RGBA16F),
GL_TYPE(GL_HALF_FLOAT),
#endif
},
{
DRM_FORMAT(XRGB16161616F),
BITS_RGBA_FLOAT(16, 16, 16, 0),
.bpp = 64,
},
{
DRM_FORMAT(ARGB16161616F),
BITS_RGBA_FLOAT(16, 16, 16, 16),
.bpp = 64,
.opaque_substitute = DRM_FORMAT_XRGB16161616F,
},
{
DRM_FORMAT(YUYV),
SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
.num_planes = 1,
.hsub = 2,
},
{
DRM_FORMAT(YVYU),
SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
.num_planes = 1,
.chroma_order = ORDER_VU,
.hsub = 2,
},
{
DRM_FORMAT(UYVY),
SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
.num_planes = 1,
.luma_chroma_order = ORDER_CHROMA_LUMA,
.hsub = 2,
},
{
DRM_FORMAT(VYUY),
SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
.num_planes = 1,
.luma_chroma_order = ORDER_CHROMA_LUMA,
.chroma_order = ORDER_VU,
.hsub = 2,
},
{
DRM_FORMAT(NV12),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(NV21),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.chroma_order = ORDER_VU,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(NV16),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.hsub = 2,
.vsub = 1,
},
{
DRM_FORMAT(NV61),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.chroma_order = ORDER_VU,
.hsub = 2,
.vsub = 1,
},
{
DRM_FORMAT(NV24),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
},
{
DRM_FORMAT(NV42),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.chroma_order = ORDER_VU,
},
{
DRM_FORMAT(P010),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(P012),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(P016),
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
.num_planes = 2,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(YUV410),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.hsub = 4,
.vsub = 4,
},
{
DRM_FORMAT(YVU410),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.chroma_order = ORDER_VU,
.hsub = 4,
.vsub = 4,
},
{
DRM_FORMAT(YUV411),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.hsub = 4,
.vsub = 1,
},
{
DRM_FORMAT(YVU411),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.chroma_order = ORDER_VU,
.hsub = 4,
.vsub = 1,
},
{
DRM_FORMAT(YUV420),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(YVU420),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.chroma_order = ORDER_VU,
.hsub = 2,
.vsub = 2,
},
{
DRM_FORMAT(YUV422),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.hsub = 2,
.vsub = 1,
},
{
DRM_FORMAT(YVU422),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.chroma_order = ORDER_VU,
.hsub = 2,
.vsub = 1,
},
{
DRM_FORMAT(YUV444),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
},
{
DRM_FORMAT(YVU444),
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
.num_planes = 3,
.chroma_order = ORDER_VU,
},
{
DRM_FORMAT(XYUV8888),
.bpp = 32,
},
};
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info_shm(uint32_t format)
{
if (format == WL_SHM_FORMAT_XRGB8888)
return pixel_format_get_info(DRM_FORMAT_XRGB8888);
else if (format == WL_SHM_FORMAT_ARGB8888)
return pixel_format_get_info(DRM_FORMAT_ARGB8888);
else
return pixel_format_get_info(format);
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info(uint32_t format)
{
unsigned int i;
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
if (pixel_format_table[i].format == format)
return &pixel_format_table[i];
}
return NULL;
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info_by_index(unsigned int index)
{
if (index >= ARRAY_LENGTH(pixel_format_table))
return NULL;
return &pixel_format_table[index];
}
WL_EXPORT unsigned int
pixel_format_get_info_count(void)
{
return ARRAY_LENGTH(pixel_format_table);
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info_by_drm_name(const char *drm_format_name)
{
const struct pixel_format_info *info;
unsigned int i;
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
info = &pixel_format_table[i];
if (strcasecmp(info->drm_format_name, drm_format_name) == 0)
return info;
}
return NULL;
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info_by_pixman(pixman_format_code_t pixman_format)
{
unsigned int i;
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
if (pixel_format_table[i].pixman_format == pixman_format)
return &pixel_format_table[i];
}
return NULL;
}
WL_EXPORT unsigned int
pixel_format_get_plane_count(const struct pixel_format_info *info)
{
return info->num_planes ? info->num_planes : 1;
}
WL_EXPORT bool
pixel_format_is_opaque(const struct pixel_format_info *info)
{
return !info->opaque_substitute;
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_opaque_substitute(const struct pixel_format_info *info)
{
if (!info->opaque_substitute)
return info;
else
return pixel_format_get_info(info->opaque_substitute);
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info_by_opaque_substitute(uint32_t format)
{
unsigned int i;
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
if (pixel_format_table[i].opaque_substitute == format)
return &pixel_format_table[i];
}
return NULL;
}
WL_EXPORT unsigned int
pixel_format_hsub(const struct pixel_format_info *info,
unsigned int plane)
{
/* We don't support any formats where the first plane is subsampled. */
if (plane == 0 || info->hsub == 0)
return 1;
return info->hsub;
}
WL_EXPORT unsigned int
pixel_format_vsub(const struct pixel_format_info *info,
unsigned int plane)
{
/* We don't support any formats where the first plane is subsampled. */
if (plane == 0 || info->vsub == 0)
return 1;
return info->vsub;
}
WL_EXPORT unsigned int
pixel_format_width_for_plane(const struct pixel_format_info *info,
unsigned int plane,
unsigned int width)
{
return width / pixel_format_hsub(info, plane);
}
WL_EXPORT unsigned int
pixel_format_height_for_plane(const struct pixel_format_info *info,
unsigned int plane,
unsigned int height)
{
return height / pixel_format_vsub(info, plane);
}
WL_EXPORT char *
pixel_format_get_modifier(uint64_t modifier)
{
char *modifier_name;
char *vendor_name;
char *mod_str;
modifier_name = drmGetFormatModifierName(modifier);
vendor_name = drmGetFormatModifierVendor(modifier);
if (!modifier_name) {
if (vendor_name)
str_printf(&mod_str, "%s_%s (0x%llx)",
vendor_name, "UNKNOWN_MODIFIER",
(unsigned long long) modifier);
else
str_printf(&mod_str, "0x%llx",
(unsigned long long) modifier);
free(vendor_name);
return mod_str;
}
if (modifier == DRM_FORMAT_MOD_LINEAR) {
str_printf(&mod_str, "%s (0x%llx)", modifier_name,
(unsigned long long) modifier);
free(modifier_name);
free(vendor_name);
return mod_str;
}
str_printf(&mod_str, "%s_%s (0x%llx)", vendor_name, modifier_name,
(unsigned long long) modifier);
free(modifier_name);
free(vendor_name);
return mod_str;
}
WL_EXPORT uint32_t
pixel_format_get_shm_format(const struct pixel_format_info *info)
{
/* Only these two format codes differ between wl_shm and DRM fourcc */
switch (info->format) {
case DRM_FORMAT_ARGB8888:
return WL_SHM_FORMAT_ARGB8888;
case DRM_FORMAT_XRGB8888:
return WL_SHM_FORMAT_XRGB8888;
default:
break;
}
return info->format;
}
WL_EXPORT const struct pixel_format_info **
pixel_format_get_array(const uint32_t *drm_formats, unsigned int formats_count)
{
const struct pixel_format_info **formats;
unsigned int i;
formats = xcalloc(formats_count, sizeof(*formats));
for (i = 0; i < formats_count; i++) {
formats[i] = pixel_format_get_info(drm_formats[i]);
if (!formats[i]) {
free(formats);
return NULL;
}
}
return formats;
}