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mesa-drm/tests/modetest/buffers.c
Emil Svendsen 289175512c modetest: util: add seed argument for noise patterns 
Add seed argument for modetest noise patterns. If no seed is provided
the current time will be used as seed.

The used seed will be printed so the noise pattern can be reproduced.

Signed-off-by: Emil Svendsen <emas@bang-olufsen.dk>
2025-06-09 09:31:02 +02:00

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/*
* DRM based mode setting test program
* Copyright 2008 Tungsten Graphics
* Jakob Bornecrantz <jakob@tungstengraphics.com>
* Copyright 2008 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
*
* 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 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.
*/
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/ioctl.h>
#include "drm.h"
#include "drm_fourcc.h"
#include "libdrm_macros.h"
#include "xf86drm.h"
#include "xf86drmMode.h"
#include "buffers.h"
struct bo
{
int fd;
void *ptr;
uint64_t size;
uint32_t pitch;
uint32_t handle;
};
/* -----------------------------------------------------------------------------
* Buffers management
*/
static struct bo *
bo_create_dumb(int fd, unsigned int width, unsigned int height, unsigned int bpp)
{
struct bo *bo;
int ret;
bo = calloc(1, sizeof(*bo));
if (bo == NULL) {
fprintf(stderr, "failed to allocate buffer object\n");
return NULL;
}
ret = drmModeCreateDumbBuffer(fd, width, height, bpp, 0, &bo->handle,
&bo->pitch, &bo->size);
if (ret) {
fprintf(stderr, "failed to create dumb buffer: %s\n",
strerror(errno));
free(bo);
return NULL;
}
bo->fd = fd;
return bo;
}
static int bo_map(struct bo *bo, void **out)
{
void *map;
int ret;
uint64_t offset;
ret = drmModeMapDumbBuffer(bo->fd, bo->handle, &offset);
if (ret)
return ret;
map = drm_mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
bo->fd, offset);
if (map == MAP_FAILED)
return -EINVAL;
bo->ptr = map;
*out = map;
return 0;
}
static void bo_unmap(struct bo *bo)
{
if (!bo->ptr)
return;
drm_munmap(bo->ptr, bo->size);
bo->ptr = NULL;
}
struct bo *
bo_create(int fd, unsigned int format,
unsigned int width, unsigned int height,
unsigned int handles[4], unsigned int pitches[4],
unsigned int offsets[4], enum util_fill_pattern pattern,
unsigned long seed)
{
unsigned int virtual_height, xsub, ysub;
struct bo *bo;
unsigned int bpp;
bool is_planar;
void *planes[3] = { 0, };
void *virtual;
int ret;
switch (format) {
case DRM_FORMAT_C1:
bpp = 1;
break;
case DRM_FORMAT_C2:
bpp = 2;
break;
case DRM_FORMAT_C4:
bpp = 4;
break;
case DRM_FORMAT_C8:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YVU422:
case DRM_FORMAT_YUV444:
case DRM_FORMAT_YVU444:
bpp = 8;
break;
case DRM_FORMAT_NV15:
case DRM_FORMAT_NV20:
case DRM_FORMAT_NV30:
bpp = 10;
break;
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_XRGB4444:
case DRM_FORMAT_ABGR4444:
case DRM_FORMAT_XBGR4444:
case DRM_FORMAT_RGBA4444:
case DRM_FORMAT_RGBX4444:
case DRM_FORMAT_BGRA4444:
case DRM_FORMAT_BGRX4444:
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_XRGB1555:
case DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN:
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_XBGR1555:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_RGBX5551:
case DRM_FORMAT_BGRA5551:
case DRM_FORMAT_BGRX5551:
case DRM_FORMAT_RGB565:
case DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN:
case DRM_FORMAT_BGR565:
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
bpp = 16;
break;
case DRM_FORMAT_BGR888:
case DRM_FORMAT_RGB888:
bpp = 24;
break;
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_RGBX8888:
case DRM_FORMAT_BGRA8888:
case DRM_FORMAT_BGRX8888:
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_XBGR2101010:
case DRM_FORMAT_RGBA1010102:
case DRM_FORMAT_RGBX1010102:
case DRM_FORMAT_BGRA1010102:
case DRM_FORMAT_BGRX1010102:
bpp = 32;
break;
case DRM_FORMAT_XRGB16161616F:
case DRM_FORMAT_XBGR16161616F:
case DRM_FORMAT_ARGB16161616F:
case DRM_FORMAT_ABGR16161616F:
bpp = 64;
break;
default:
fprintf(stderr, "unsupported format 0x%08x\n", format);
return NULL;
}
switch (format) {
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV15:
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
is_planar = true;
xsub = 2;
ysub = 2;
break;
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV20:
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YVU422:
is_planar = true;
xsub = 2;
ysub = 1;
break;
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
case DRM_FORMAT_NV30:
case DRM_FORMAT_YUV444:
case DRM_FORMAT_YVU444:
is_planar = true;
xsub = 1;
ysub = 1;
break;
default:
is_planar = false;
xsub = 1;
ysub = 1;
break;
}
virtual_height = height;
if (is_planar)
virtual_height += height * 2 / xsub / ysub;
bo = bo_create_dumb(fd, width, virtual_height, bpp);
if (!bo)
return NULL;
ret = bo_map(bo, &virtual);
if (ret) {
fprintf(stderr, "failed to map buffer: %s\n",
strerror(-errno));
bo_destroy(bo);
return NULL;
}
/* just testing a limited # of formats to test single
* and multi-planar path.. would be nice to add more..
*/
switch (format) {
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
offsets[0] = 0;
handles[0] = bo->handle;
pitches[0] = bo->pitch;
planes[0] = virtual;
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV15:
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
case DRM_FORMAT_NV20:
case DRM_FORMAT_NV30:
offsets[0] = 0;
handles[0] = bo->handle;
pitches[0] = bo->pitch;
pitches[1] = pitches[0] * 2 / xsub;
offsets[1] = pitches[0] * height;
handles[1] = bo->handle;
planes[0] = virtual;
planes[1] = virtual + offsets[1];
break;
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YVU422:
case DRM_FORMAT_YUV444:
case DRM_FORMAT_YVU444:
offsets[0] = 0;
handles[0] = bo->handle;
pitches[0] = bo->pitch;
pitches[1] = pitches[0] / xsub;
offsets[1] = pitches[0] * height;
handles[1] = bo->handle;
pitches[2] = pitches[1];
offsets[2] = offsets[1] + pitches[1] * height / ysub;
handles[2] = bo->handle;
planes[0] = virtual;
planes[1] = virtual + offsets[1];
planes[2] = virtual + offsets[2];
break;
case DRM_FORMAT_C1:
case DRM_FORMAT_C2:
case DRM_FORMAT_C4:
case DRM_FORMAT_C8:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_XRGB4444:
case DRM_FORMAT_ABGR4444:
case DRM_FORMAT_XBGR4444:
case DRM_FORMAT_RGBA4444:
case DRM_FORMAT_RGBX4444:
case DRM_FORMAT_BGRA4444:
case DRM_FORMAT_BGRX4444:
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_XRGB1555:
case DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN:
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_XBGR1555:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_RGBX5551:
case DRM_FORMAT_BGRA5551:
case DRM_FORMAT_BGRX5551:
case DRM_FORMAT_RGB565:
case DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN:
case DRM_FORMAT_BGR565:
case DRM_FORMAT_BGR888:
case DRM_FORMAT_RGB888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_RGBX8888:
case DRM_FORMAT_BGRA8888:
case DRM_FORMAT_BGRX8888:
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_XBGR2101010:
case DRM_FORMAT_RGBA1010102:
case DRM_FORMAT_RGBX1010102:
case DRM_FORMAT_BGRA1010102:
case DRM_FORMAT_BGRX1010102:
case DRM_FORMAT_XRGB16161616F:
case DRM_FORMAT_XBGR16161616F:
case DRM_FORMAT_ARGB16161616F:
case DRM_FORMAT_ABGR16161616F:
offsets[0] = 0;
handles[0] = bo->handle;
pitches[0] = bo->pitch;
planes[0] = virtual;
break;
}
util_fill_pattern(format, pattern, planes, width, height, pitches[0], seed);
bo_unmap(bo);
return bo;
}
void bo_destroy(struct bo *bo)
{
int ret;
ret = drmModeDestroyDumbBuffer(bo->fd, bo->handle);
if (ret)
fprintf(stderr, "failed to destroy dumb buffer: %s\n",
strerror(errno));
free(bo);
}
void bo_dump(struct bo *bo, const char *filename)
{
FILE *fp;
if (!bo || !filename)
return;
fp = fopen(filename, "wb");
if (fp) {
void *addr;
bo_map(bo, &addr);
printf("Dumping buffer %p to file %s.\n", bo->ptr, filename);
fwrite(bo->ptr, 1, bo->size, fp);
bo_unmap(bo);
fclose(fp);
}
}
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