Google Git
Sign in
android / platform / external / mesa3d / b74eb12a8e01ac086ecfa4f6448a3e46b2cb1593 / . / src / gbm / backends / dri / gbm_dri.c
blob: 9e2761c33b0f2f1bc33fd0b20d44052c8f5c7b13 [file] [log] [blame]
/*
* Copyright © 2011 Intel Corporation
*
* 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.
*
* Authors:
* Benjamin Franzke <[email protected]>
*/
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <assert.h>
#include <sys/types.h>
#include <unistd.h>
#include <dlfcn.h>
#include <xf86drm.h>
#include "drm-uapi/drm_fourcc.h"
#include <GL/gl.h> /* mesa_interface needs GL types */
#include "mesa_interface.h"
#include "gbm_driint.h"
#include "gbmint.h"
#include "loader_dri_helper.h"
#include "kopper_interface.h"
#include "loader.h"
#include "util/u_debug.h"
#include "util/macros.h"
#include "dri_util.h"
#include "pipe/p_screen.h"
#include "dri_screen.h"
#include "gbm_backend_abi.h"
/* For importing wl_buffer */
#if HAVE_WAYLAND_PLATFORM
#include "wayland-drm.h"
#endif
static const struct gbm_core *core;
static GLboolean
dri_validate_egl_image(void *image, void *data)
{
struct gbm_dri_device *dri = data;
if (dri->validate_image == NULL)
return false;
return dri->validate_image(image, dri->lookup_user_data);
}
static struct dri_image *
dri_lookup_egl_image_validated(void *image, void *data)
{
struct gbm_dri_device *dri = data;
if (dri->lookup_image_validated == NULL)
return NULL;
return dri->lookup_image_validated(image, dri->lookup_user_data);
}
static void
dri_flush_front_buffer(struct dri_drawable * driDrawable, void *data)
{
struct gbm_dri_surface *surf = data;
struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm);
if (dri->flush_front_buffer != NULL)
dri->flush_front_buffer(driDrawable, surf->dri_private);
}
static unsigned
dri_get_capability(void *loaderPrivate, enum dri_loader_cap cap)
{
/* Note: loaderPrivate is _EGLDisplay* */
switch (cap) {
case DRI_LOADER_CAP_FP16:
return 1;
case DRI_LOADER_CAP_RGBA_ORDERING:
return 1;
default:
return 0;
}
}
static int
image_get_buffers(struct dri_drawable *driDrawable,
unsigned int format,
uint32_t *stamp,
void *loaderPrivate,
uint32_t buffer_mask,
struct __DRIimageList *buffers)
{
struct gbm_dri_surface *surf = loaderPrivate;
struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm);
if (dri->image_get_buffers == NULL)
return 0;
return dri->image_get_buffers(driDrawable, format, stamp,
surf->dri_private, buffer_mask, buffers);
}
static void
swrast_get_drawable_info(struct dri_drawable *driDrawable,
int *x,
int *y,
int *width,
int *height,
void *loaderPrivate)
{
struct gbm_dri_surface *surf = loaderPrivate;
*x = 0;
*y = 0;
*width = surf->base.v0.width;
*height = surf->base.v0.height;
}
static void
swrast_put_image2(struct dri_drawable *driDrawable,
int op,
int x,
int y,
int width,
int height,
int stride,
char *data,
void *loaderPrivate)
{
struct gbm_dri_surface *surf = loaderPrivate;
struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm);
dri->swrast_put_image2(driDrawable,
op, x, y,
width, height, stride,
data, surf->dri_private);
}
static void
swrast_put_image(struct dri_drawable *driDrawable,
int op,
int x,
int y,
int width,
int height,
char *data,
void *loaderPrivate)
{
swrast_put_image2(driDrawable, op, x, y, width, height,
width * 4, data, loaderPrivate);
}
static void
swrast_get_image(struct dri_drawable *driDrawable,
int x,
int y,
int width,
int height,
char *data,
void *loaderPrivate)
{
struct gbm_dri_surface *surf = loaderPrivate;
struct gbm_dri_device *dri = gbm_dri_device(surf->base.gbm);
dri->swrast_get_image(driDrawable,
x, y,
width, height,
data, surf->dri_private);
}
static const __DRIuseInvalidateExtension use_invalidate = {
.base = { __DRI_USE_INVALIDATE, 1 }
};
static const __DRIimageLookupExtension image_lookup_extension = {
.base = { __DRI_IMAGE_LOOKUP, 2 },
.validateEGLImage = dri_validate_egl_image,
.lookupEGLImageValidated = dri_lookup_egl_image_validated,
};
static const __DRIimageLoaderExtension image_loader_extension = {
.base = { __DRI_IMAGE_LOADER, 2 },
.getBuffers = image_get_buffers,
.flushFrontBuffer = dri_flush_front_buffer,
.getCapability = dri_get_capability,
};
static const __DRIswrastLoaderExtension swrast_loader_extension = {
.base = { __DRI_SWRAST_LOADER, 2 },
.getDrawableInfo = swrast_get_drawable_info,
.putImage = swrast_put_image,
.getImage = swrast_get_image,
.putImage2 = swrast_put_image2
};
static const __DRIkopperLoaderExtension kopper_loader_extension = {
.base = { __DRI_KOPPER_LOADER, 1 },
.SetSurfaceCreateInfo = NULL,
};
static const __DRIextension *gbm_dri_screen_extensions[] = {
&image_lookup_extension.base,
&use_invalidate.base,
&image_loader_extension.base,
&swrast_loader_extension.base,
&kopper_loader_extension.base,
NULL,
};
static int
dri_screen_create_for_driver(struct gbm_dri_device *dri, char *driver_name, bool driver_name_is_inferred)
{
bool swrast = driver_name == NULL; /* If it's pure swrast, not just swkms. */
enum dri_screen_type type = DRI_SCREEN_SWRAST;
if (!swrast) {
if (!strcmp(driver_name, "zink"))
type = DRI_SCREEN_KOPPER;
else if (!strcmp(driver_name, "kms_swrast"))
type = DRI_SCREEN_KMS_SWRAST;
else
type = DRI_SCREEN_DRI3;
}
dri->driver_name = swrast ? strdup("swrast") : driver_name;
dri->swrast = swrast;
dri->loader_extensions = gbm_dri_screen_extensions;
dri->screen = driCreateNewScreen3(0, swrast ? -1 : dri->base.v0.fd,
dri->loader_extensions,
type,
&dri->driver_configs, driver_name_is_inferred, true, dri);
if (dri->screen == NULL)
goto fail;
dri->lookup_user_data = NULL;
return 0;
fail:
free(dri->driver_name);
return -1;
}
static int
dri_screen_create(struct gbm_dri_device *dri, bool driver_name_is_inferred)
{
char *driver_name;
driver_name = loader_get_driver_for_fd(dri->base.v0.fd);
if (!driver_name)
return -1;
return dri_screen_create_for_driver(dri, driver_name, driver_name_is_inferred);
}
static int
dri_screen_create_sw(struct gbm_dri_device *dri, bool driver_name_is_inferred)
{
char *driver_name;
int ret;
driver_name = strdup("kms_swrast");
if (!driver_name)
return -errno;
ret = dri_screen_create_for_driver(dri, driver_name, driver_name_is_inferred);
if (ret != 0)
ret = dri_screen_create_for_driver(dri, NULL, driver_name_is_inferred);
if (ret != 0)
return ret;
dri->software = true;
return 0;
}
static const struct gbm_dri_visual gbm_dri_visuals_table[] = {
{ GBM_FORMAT_R8, PIPE_FORMAT_R8_UNORM },
{ GBM_FORMAT_R16, PIPE_FORMAT_R16_UNORM },
{ GBM_FORMAT_GR88, PIPE_FORMAT_R8G8_UNORM },
{ GBM_FORMAT_GR1616, PIPE_FORMAT_R16G16_UNORM },
{ GBM_FORMAT_ARGB1555, PIPE_FORMAT_B5G5R5A1_UNORM },
{ GBM_FORMAT_RGB565, PIPE_FORMAT_B5G6R5_UNORM },
{ GBM_FORMAT_BGRX8888, PIPE_FORMAT_X8R8G8B8_UNORM },
{ GBM_FORMAT_BGRA8888, PIPE_FORMAT_A8R8G8B8_UNORM },
{ GBM_FORMAT_RGBX8888, PIPE_FORMAT_X8B8G8R8_UNORM },
{ GBM_FORMAT_RGBA8888, PIPE_FORMAT_A8B8G8R8_UNORM },
{ GBM_FORMAT_XRGB8888, PIPE_FORMAT_B8G8R8X8_UNORM },
{ GBM_FORMAT_ARGB8888, PIPE_FORMAT_B8G8R8A8_UNORM },
{ GBM_FORMAT_XBGR8888, PIPE_FORMAT_R8G8B8X8_UNORM },
{ GBM_FORMAT_ABGR8888, PIPE_FORMAT_R8G8B8A8_UNORM },
{ GBM_FORMAT_XRGB2101010, PIPE_FORMAT_B10G10R10X2_UNORM },
{ GBM_FORMAT_ARGB2101010, PIPE_FORMAT_B10G10R10A2_UNORM },
{ GBM_FORMAT_XBGR2101010, PIPE_FORMAT_R10G10B10X2_UNORM },
{ GBM_FORMAT_ABGR2101010, PIPE_FORMAT_R10G10B10A2_UNORM },
{ GBM_FORMAT_XBGR16161616, PIPE_FORMAT_R16G16B16X16_UNORM },
{ GBM_FORMAT_ABGR16161616, PIPE_FORMAT_R16G16B16A16_UNORM },
{ GBM_FORMAT_XBGR16161616F, PIPE_FORMAT_R16G16B16X16_FLOAT },
{ GBM_FORMAT_ABGR16161616F, PIPE_FORMAT_R16G16B16A16_FLOAT },
};
static int
gbm_format_to_pipe_format(uint32_t gbm_format)
{
gbm_format = core->v0.format_canonicalize(gbm_format);
for (size_t i = 0; i < ARRAY_SIZE(gbm_dri_visuals_table); i++) {
if (gbm_dri_visuals_table[i].gbm_format == gbm_format)
return gbm_dri_visuals_table[i].pipe_format;
}
return 0;
}
static int
gbm_dri_is_format_supported(struct gbm_device *gbm,
uint32_t format,
uint32_t usage)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
int count;
if ((usage & GBM_BO_USE_CURSOR) && (usage & GBM_BO_USE_RENDERING))
return 0;
format = core->v0.format_canonicalize(format);
if (gbm_format_to_pipe_format(format) == 0)
return 0;
/* If there is no query, fall back to the small table which was originally
* here. */
if (!dri->has_dmabuf_import) {
switch (format) {
case GBM_FORMAT_XRGB8888:
case GBM_FORMAT_ARGB8888:
case GBM_FORMAT_XBGR8888:
return 1;
default:
return 0;
}
}
/* This returns false if the format isn't supported */
if (!dri_query_dma_buf_modifiers(dri->screen, format, 0, NULL, NULL,
&count))
return 0;
return 1;
}
static int
gbm_dri_get_format_modifier_plane_count(struct gbm_device *gbm,
uint32_t format,
uint64_t modifier)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
uint64_t plane_count;
if (!dri->has_dmabuf_import)
return -1;
format = core->v0.format_canonicalize(format);
if (gbm_format_to_pipe_format(format) == 0)
return -1;
if (!dri2_query_dma_buf_format_modifier_attribs(dri->screen, format, modifier,
__DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT, &plane_count))
return -1;
return plane_count;
}
static int
gbm_dri_bo_write(struct gbm_bo *_bo, const void *buf, size_t count)
{
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
if (bo->image != NULL) {
errno = EINVAL;
return -1;
}
memcpy(bo->map, buf, count);
return 0;
}
static int
gbm_dri_bo_get_fd(struct gbm_bo *_bo)
{
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
int fd;
if (bo->image == NULL)
return -1;
if (!dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_FD, &fd))
return -1;
return fd;
}
static int
get_number_planes(struct gbm_dri_device *dri, struct dri_image *image)
{
int num_planes = 0;
/* Dumb buffers are single-plane only. */
if (!image)
return 1;
dri2_query_image(image, __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes);
if (num_planes <= 0)
num_planes = 1;
return num_planes;
}
static int
gbm_dri_bo_get_planes(struct gbm_bo *_bo)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
return get_number_planes(dri, bo->image);
}
static union gbm_bo_handle
gbm_dri_bo_get_handle_for_plane(struct gbm_bo *_bo, int plane)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
union gbm_bo_handle ret;
ret.s32 = -1;
if (plane >= get_number_planes(dri, bo->image)) {
errno = EINVAL;
return ret;
}
/* dumb BOs can only utilize non-planar formats */
if (!bo->image) {
assert(plane == 0);
ret.s32 = bo->handle;
return ret;
}
struct dri_image *image = dri2_from_planar(bo->image, plane, NULL);
if (image) {
dri2_query_image(image, __DRI_IMAGE_ATTRIB_HANDLE, &ret.s32);
dri2_destroy_image(image);
} else {
assert(plane == 0);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_HANDLE, &ret.s32);
}
return ret;
}
static int
gbm_dri_bo_get_plane_fd(struct gbm_bo *_bo, int plane)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
int fd = -1;
if (!dri->has_dmabuf_import) {
/* Preserve legacy behavior if plane is 0 */
if (plane == 0)
return gbm_dri_bo_get_fd(_bo);
errno = ENOSYS;
return -1;
}
/* dumb BOs can only utilize non-planar formats */
if (!bo->image) {
errno = EINVAL;
return -1;
}
if (plane >= get_number_planes(dri, bo->image)) {
errno = EINVAL;
return -1;
}
struct dri_image *image = dri2_from_planar(bo->image, plane, NULL);
if (image) {
dri2_query_image(image, __DRI_IMAGE_ATTRIB_FD, &fd);
dri2_destroy_image(image);
} else {
assert(plane == 0);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_FD, &fd);
}
return fd;
}
static uint32_t
gbm_dri_bo_get_stride(struct gbm_bo *_bo, int plane)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
struct dri_image *image;
int stride = 0;
if (!dri->has_dmabuf_import) {
/* Preserve legacy behavior if plane is 0 */
if (plane == 0)
return _bo->v0.stride;
errno = ENOSYS;
return 0;
}
if (plane >= get_number_planes(dri, bo->image)) {
errno = EINVAL;
return 0;
}
if (bo->image == NULL) {
assert(plane == 0);
return _bo->v0.stride;
}
image = dri2_from_planar(bo->image, plane, NULL);
if (image) {
dri2_query_image(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
dri2_destroy_image(image);
} else {
assert(plane == 0);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
}
return (uint32_t)stride;
}
static uint32_t
gbm_dri_bo_get_offset(struct gbm_bo *_bo, int plane)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
int offset = 0;
if (plane >= get_number_planes(dri, bo->image))
return 0;
/* Dumb images have no offset */
if (bo->image == NULL) {
assert(plane == 0);
return 0;
}
struct dri_image *image = dri2_from_planar(bo->image, plane, NULL);
if (image) {
dri2_query_image(image, __DRI_IMAGE_ATTRIB_OFFSET, &offset);
dri2_destroy_image(image);
} else {
assert(plane == 0);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_OFFSET, &offset);
}
return (uint32_t)offset;
}
static uint64_t
gbm_dri_bo_get_modifier(struct gbm_bo *_bo)
{
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
/* Dumb buffers have no modifiers */
if (!bo->image)
return DRM_FORMAT_MOD_LINEAR;
uint64_t ret = 0;
int mod;
if (!dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
&mod))
return DRM_FORMAT_MOD_INVALID;
ret = (uint64_t)mod << 32;
if (!dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
&mod))
return DRM_FORMAT_MOD_INVALID;
ret |= (uint64_t)(mod & 0xffffffff);
return ret;
}
static void
gbm_dri_bo_destroy(struct gbm_bo *_bo)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
struct drm_mode_destroy_dumb arg;
if (bo->image != NULL) {
dri2_destroy_image(bo->image);
} else {
gbm_dri_bo_unmap_dumb(bo);
memset(&arg, 0, sizeof(arg));
arg.handle = bo->handle;
drmIoctl(dri->base.v0.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &arg);
}
free(bo);
}
static struct gbm_bo *
gbm_dri_bo_import(struct gbm_device *gbm,
uint32_t type, void *buffer, uint32_t usage)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
struct gbm_dri_bo *bo;
struct dri_image *image;
unsigned dri_use = 0;
int gbm_format;
if (!dri->has_dmabuf_import) {
errno = ENOSYS;
return NULL;
}
switch (type) {
#if HAVE_WAYLAND_PLATFORM
case GBM_BO_IMPORT_WL_BUFFER:
{
struct wl_drm_buffer *wb;
if (!dri->wl_drm) {
errno = EINVAL;
return NULL;
}
wb = wayland_drm_buffer_get(dri->wl_drm, (struct wl_resource *) buffer);
if (!wb) {
errno = EINVAL;
return NULL;
}
image = dri2_dup_image(wb->driver_buffer, NULL);
/* GBM_FORMAT_* is identical to WL_DRM_FORMAT_*, so no conversion
* required. */
gbm_format = wb->format;
break;
}
#endif
case GBM_BO_IMPORT_EGL_IMAGE:
{
if (dri->lookup_image_validated == NULL) {
errno = EINVAL;
return NULL;
}
if (!dri->validate_image(buffer, dri->lookup_user_data)) {
errno = EINVAL;
return NULL;
}
image = dri->lookup_image_validated(buffer, dri->lookup_user_data);
image = dri2_dup_image(image, NULL);
dri2_query_image(image, __DRI_IMAGE_ATTRIB_FOURCC, &gbm_format);
if (gbm_format == DRM_FORMAT_INVALID) {
errno = EINVAL;
dri2_destroy_image(image);
return NULL;
}
break;
}
case GBM_BO_IMPORT_FD:
{
struct gbm_import_fd_data *fd_data = buffer;
int stride = fd_data->stride, offset = 0;
int fourcc;
/* GBM's GBM_FORMAT_* tokens are a strict superset of the DRI FourCC
* tokens accepted by createImageFromDmaBufs, except for not supporting
* the sARGB format. */
fourcc = core->v0.format_canonicalize(fd_data->format);
image = dri2_from_dma_bufs(dri->screen,
fd_data->width,
fd_data->height,
fourcc,
DRM_FORMAT_MOD_INVALID,
&fd_data->fd, 1,
&stride, &offset,
0, 0, 0, 0, 0,
NULL, NULL);
if (image == NULL) {
errno = EINVAL;
return NULL;
}
gbm_format = fd_data->format;
break;
}
case GBM_BO_IMPORT_FD_MODIFIER:
{
struct gbm_import_fd_modifier_data *fd_data = buffer;
unsigned int error;
int fourcc;
/* GBM's GBM_FORMAT_* tokens are a strict superset of the DRI FourCC
* tokens accepted by createImageFromDmaBufs, except for not supporting
* the sARGB format. */
fourcc = core->v0.format_canonicalize(fd_data->format);
image = dri2_from_dma_bufs(dri->screen, fd_data->width,
fd_data->height, fourcc,
fd_data->modifier,
fd_data->fds,
fd_data->num_fds,
fd_data->strides,
fd_data->offsets,
0, 0, 0, 0,
0, &error, NULL);
if (image == NULL) {
errno = ENOSYS;
return NULL;
}
gbm_format = fourcc;
break;
}
default:
errno = ENOSYS;
return NULL;
}
bo = calloc(1, sizeof *bo);
if (bo == NULL) {
dri2_destroy_image(image);
return NULL;
}
bo->image = image;
if (usage & GBM_BO_USE_SCANOUT)
dri_use |= __DRI_IMAGE_USE_SCANOUT;
if (usage & GBM_BO_USE_CURSOR)
dri_use |= __DRI_IMAGE_USE_CURSOR;
if (!dri2_validate_usage(bo->image, dri_use)) {
errno = EINVAL;
dri2_destroy_image(bo->image);
free(bo);
return NULL;
}
bo->base.gbm = gbm;
bo->base.v0.format = gbm_format;
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_WIDTH,
(int*)&bo->base.v0.width);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_HEIGHT,
(int*)&bo->base.v0.height);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_STRIDE,
(int*)&bo->base.v0.stride);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_HANDLE,
&bo->base.v0.handle.s32);
return &bo->base;
}
static struct gbm_bo *
create_dumb(struct gbm_device *gbm,
uint32_t width, uint32_t height,
uint32_t format, uint32_t usage)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
struct drm_mode_create_dumb create_arg;
struct gbm_dri_bo *bo;
struct drm_mode_destroy_dumb destroy_arg;
int ret;
int is_cursor, is_scanout;
is_cursor = (usage & GBM_BO_USE_CURSOR) != 0 &&
format == GBM_FORMAT_ARGB8888;
is_scanout = (usage & GBM_BO_USE_SCANOUT) != 0 &&
(format == GBM_FORMAT_XRGB8888 || format == GBM_FORMAT_XBGR8888);
if (!is_cursor && !is_scanout) {
errno = EINVAL;
return NULL;
}
bo = calloc(1, sizeof *bo);
if (bo == NULL)
return NULL;
memset(&create_arg, 0, sizeof(create_arg));
create_arg.bpp = 32;
create_arg.width = width;
create_arg.height = height;
ret = drmIoctl(dri->base.v0.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg);
if (ret)
goto free_bo;
bo->base.gbm = gbm;
bo->base.v0.width = width;
bo->base.v0.height = height;
bo->base.v0.stride = create_arg.pitch;
bo->base.v0.format = format;
bo->base.v0.handle.u32 = create_arg.handle;
bo->handle = create_arg.handle;
bo->size = create_arg.size;
if (gbm_dri_bo_map_dumb(bo) == NULL)
goto destroy_dumb;
return &bo->base;
destroy_dumb:
memset(&destroy_arg, 0, sizeof destroy_arg);
destroy_arg.handle = create_arg.handle;
drmIoctl(dri->base.v0.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
free_bo:
free(bo);
return NULL;
}
static struct gbm_bo *
gbm_dri_bo_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
uint32_t format, uint32_t usage,
const uint64_t *modifiers,
const unsigned int count)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
struct gbm_dri_bo *bo;
int pipe_format;
unsigned dri_use = 0;
uint64_t *mods_comp = NULL;
uint64_t *mods_filtered = NULL;
unsigned int count_filtered = 0;
format = core->v0.format_canonicalize(format);
if (usage & GBM_BO_USE_WRITE || !dri->has_dmabuf_export)
return create_dumb(gbm, width, height, format, usage);
bo = calloc(1, sizeof *bo);
if (bo == NULL)
return NULL;
bo->base.gbm = gbm;
bo->base.v0.width = width;
bo->base.v0.height = height;
bo->base.v0.format = format;
pipe_format = gbm_format_to_pipe_format(format);
if (pipe_format == 0) {
errno = EINVAL;
goto failed;
}
if (usage & GBM_BO_USE_SCANOUT)
dri_use |= __DRI_IMAGE_USE_SCANOUT;
if (usage & GBM_BO_USE_CURSOR)
dri_use |= __DRI_IMAGE_USE_CURSOR;
if (usage & GBM_BO_USE_LINEAR)
dri_use |= __DRI_IMAGE_USE_LINEAR;
if (usage & GBM_BO_USE_PROTECTED)
dri_use |= __DRI_IMAGE_USE_PROTECTED;
if (usage & GBM_BO_USE_FRONT_RENDERING)
dri_use |= __DRI_IMAGE_USE_FRONT_RENDERING;
/* Gallium drivers requires shared in order to get the handle/stride */
dri_use |= __DRI_IMAGE_USE_SHARE;
/* If the driver supports fixed-rate compression, filter the acceptable
* modifiers by the compression rate. */
if (modifiers && dri->has_compression_modifiers) {
enum __DRIFixedRateCompression comp = __DRI_FIXED_RATE_COMPRESSION_NONE;
switch (usage & GBM_BO_FIXED_COMPRESSION_MASK) {
#define CASE(x) case GBM_BO_FIXED_COMPRESSION_ ## x: comp = __DRI_FIXED_RATE_COMPRESSION_ ## x; break;
CASE(DEFAULT);
CASE(1BPC);
CASE(2BPC);
CASE(3BPC);
CASE(4BPC);
CASE(5BPC);
CASE(6BPC);
CASE(7BPC);
CASE(8BPC);
CASE(9BPC);
CASE(10BPC);
CASE(11BPC);
CASE(12BPC);
#undef CASE
default:
break;
}
int count_comp = 0;
/* Find how many acceptable modifiers there are for our rate. If there
* are none, fall back to no compression, as it is not mandatory to use
* the specified compression rate. */
if (!dri2_query_compression_modifiers(dri->screen, format, comp,
0, NULL, &count_comp) ||
count_comp == 0) {
if (comp == __DRI_FIXED_RATE_COMPRESSION_NONE) {
errno = EINVAL;
goto failed;
}
comp = __DRI_FIXED_RATE_COMPRESSION_NONE;
if (!dri2_query_compression_modifiers(dri->screen, format, comp,
0, NULL, &count_comp)) {
errno = EINVAL;
goto failed;
}
}
if (count_comp == 0) {
errno = EINVAL;
goto failed;
}
mods_comp = malloc(count_comp * sizeof(uint64_t));
mods_filtered = malloc(count_comp * sizeof(uint64_t));
if (!mods_comp || !mods_filtered) {
errno = ENOMEM;
goto failed;
}
if (!dri2_query_compression_modifiers(dri->screen, format, comp,
count_comp, mods_comp,
&count_comp)) {
errno = ENOMEM;
goto failed;
}
/* Intersect the list of user-supplied acceptable modifiers with the set
* of modifiers acceptable for this compression rate. */
for (unsigned int i = 0; i < count_comp; i++) {
for (unsigned int j = 0; j < count; j++) {
if (mods_comp[i] == modifiers[j]) {
mods_filtered[count_filtered++] = mods_comp[i];
break;
}
}
}
free(mods_comp);
mods_comp = NULL;
}
bo->image = dri_create_image_with_modifiers(dri->screen, width, height,
pipe_format, dri_use,
mods_filtered ? mods_filtered : modifiers,
mods_filtered ? count_filtered : count,
bo);
if (bo->image == NULL)
goto failed;
free(mods_filtered);
mods_filtered = NULL;
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_HANDLE,
&bo->base.v0.handle.s32);
dri2_query_image(bo->image, __DRI_IMAGE_ATTRIB_STRIDE,
(int *) &bo->base.v0.stride);
return &bo->base;
failed:
free(mods_comp);
free(mods_filtered);
free(bo);
return NULL;
}
static void *
gbm_dri_bo_map(struct gbm_bo *_bo,
uint32_t x, uint32_t y,
uint32_t width, uint32_t height,
uint32_t flags, uint32_t *stride, void **map_data)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
/* If it's a dumb buffer, we already have a mapping */
if (bo->map) {
*map_data = (char *)bo->map + (bo->base.v0.stride * y) + (x * 4);
*stride = bo->base.v0.stride;
return *map_data;
}
mtx_lock(&dri->mutex);
if (!dri->context) {
unsigned error;
dri->context = driCreateContextAttribs(dri->screen,
__DRI_API_OPENGL,
NULL, NULL, 0, NULL,
&error, NULL);
}
assert(dri->context);
mtx_unlock(&dri->mutex);
/* GBM flags and DRI flags are the same, so just pass them on */
return dri2_map_image(dri->context, bo->image, x, y,
width, height, flags, (int *)stride,
map_data);
}
static void
gbm_dri_bo_unmap(struct gbm_bo *_bo, void *map_data)
{
struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
/* Check if it's a dumb buffer and check the pointer is in range */
if (bo->map) {
assert(map_data >= bo->map);
assert(map_data < (bo->map + bo->size));
return;
}
if (!dri->context)
return;
dri2_unmap_image(dri->context, bo->image, map_data);
/*
* Not all DRI drivers use direct maps. They may queue up DMA operations
* on the mapping context. Since there is no explicit gbm flush
* mechanism, we need to flush here.
*/
dri_flush(dri->context, NULL, __DRI2_FLUSH_CONTEXT, 0);
}
static struct gbm_surface *
gbm_dri_surface_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
uint32_t format, uint32_t flags,
const uint64_t *modifiers, const unsigned count)
{
struct gbm_dri_surface *surf;
if (count)
assert(modifiers);
/* It's acceptable to create an image with INVALID modifier in the list,
* but it cannot be on the only modifier (since it will certainly fail
* later). While we could easily catch this after modifier creation, doing
* the check here is a convenient debug check likely pointing at whatever
* interface the client is using to build its modifier list.
*/
if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
fprintf(stderr, "Only invalid modifier specified\n");
errno = EINVAL;
}
surf = calloc(1, sizeof *surf);
if (surf == NULL) {
errno = ENOMEM;
return NULL;
}
surf->base.gbm = gbm;
surf->base.v0.width = width;
surf->base.v0.height = height;
surf->base.v0.format = core->v0.format_canonicalize(format);
surf->base.v0.flags = flags;
if (!modifiers) {
assert(!count);
return &surf->base;
}
surf->base.v0.modifiers = calloc(count, sizeof(*modifiers));
if (count && !surf->base.v0.modifiers) {
errno = ENOMEM;
free(surf);
return NULL;
}
/* TODO: We are deferring validation of modifiers until the image is actually
* created. This deferred creation can fail due to a modifier-format
* mismatch. The result is the client has a surface but no object to back it.
*/
surf->base.v0.count = count;
memcpy(surf->base.v0.modifiers, modifiers, count * sizeof(*modifiers));
return &surf->base;
}
static void
gbm_dri_surface_destroy(struct gbm_surface *_surf)
{
struct gbm_dri_surface *surf = gbm_dri_surface(_surf);
free(surf->base.v0.modifiers);
free(surf);
}
static void
dri_destroy(struct gbm_device *gbm)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
unsigned i;
if (dri->context)
driDestroyContext(dri->context);
driDestroyScreen(dri->screen);
for (i = 0; dri->driver_configs[i]; i++)
free((struct dri_config *) dri->driver_configs[i]);
free(dri->driver_configs);
free(dri->driver_name);
free(dri);
}
static struct gbm_device *
dri_device_create(int fd, uint32_t gbm_backend_version)
{
struct gbm_dri_device *dri;
int ret;
bool force_sw;
dri = calloc(1, sizeof *dri);
if (!dri)
return NULL;
dri->base.v0.fd = fd;
dri->base.v0.backend_version = gbm_backend_version;
dri->base.v0.bo_create = gbm_dri_bo_create;
dri->base.v0.bo_import = gbm_dri_bo_import;
dri->base.v0.bo_map = gbm_dri_bo_map;
dri->base.v0.bo_unmap = gbm_dri_bo_unmap;
dri->base.v0.is_format_supported = gbm_dri_is_format_supported;
dri->base.v0.get_format_modifier_plane_count =
gbm_dri_get_format_modifier_plane_count;
dri->base.v0.bo_write = gbm_dri_bo_write;
dri->base.v0.bo_get_fd = gbm_dri_bo_get_fd;
dri->base.v0.bo_get_planes = gbm_dri_bo_get_planes;
dri->base.v0.bo_get_handle = gbm_dri_bo_get_handle_for_plane;
dri->base.v0.bo_get_plane_fd = gbm_dri_bo_get_plane_fd;
dri->base.v0.bo_get_stride = gbm_dri_bo_get_stride;
dri->base.v0.bo_get_offset = gbm_dri_bo_get_offset;
dri->base.v0.bo_get_modifier = gbm_dri_bo_get_modifier;
dri->base.v0.bo_destroy = gbm_dri_bo_destroy;
dri->base.v0.destroy = dri_destroy;
dri->base.v0.surface_create = gbm_dri_surface_create;
dri->base.v0.surface_destroy = gbm_dri_surface_destroy;
dri->base.v0.name = "drm";
dri->visual_table = gbm_dri_visuals_table;
dri->num_visuals = ARRAY_SIZE(gbm_dri_visuals_table);
mtx_init(&dri->mutex, mtx_plain);
force_sw = debug_get_bool_option("GBM_ALWAYS_SOFTWARE", false);
if (!force_sw) {
ret = dri_screen_create(dri, false);
if (ret)
ret = dri_screen_create_sw(dri, true);
} else {
ret = dri_screen_create_sw(dri, false);
}
if (ret)
goto err_dri;
struct dri_screen *screen = dri->screen;
struct pipe_screen *pscreen = screen->base.screen;
#ifdef HAVE_LIBDRM
if (pscreen->caps.dmabuf & DRM_PRIME_CAP_IMPORT)
dri->has_dmabuf_import = true;
if (pscreen->caps.dmabuf & DRM_PRIME_CAP_EXPORT)
dri->has_dmabuf_export = true;
#endif
dri->has_compression_modifiers = pscreen->query_compression_rates &&
pscreen->query_compression_modifiers;
return &dri->base;
err_dri:
free(dri);
return NULL;
}
struct gbm_backend gbm_dri_backend = {
.v0.backend_version = GBM_BACKEND_ABI_VERSION,
.v0.backend_name = "dri",
.v0.create_device = dri_device_create,
};
struct gbm_backend * gbmint_get_backend(const struct gbm_core *gbm_core);
PUBLIC struct gbm_backend *
gbmint_get_backend(const struct gbm_core *gbm_core) {
core = gbm_core;
return &gbm_dri_backend;
};