626 lines
21 KiB
C
626 lines
21 KiB
C
/*
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* Copyright © 2014 Broadcom
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* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "util/os_misc.h"
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#include "pipe/p_defines.h"
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#include "pipe/p_screen.h"
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#include "pipe/p_state.h"
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#include "util/u_debug.h"
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#include "util/u_memory.h"
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#include "util/format/u_format.h"
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#include "util/u_hash_table.h"
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#include "util/u_screen.h"
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#include "util/u_transfer_helper.h"
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#include "util/ralloc.h"
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#include <xf86drm.h>
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#include "drm-uapi/drm_fourcc.h"
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#include "drm-uapi/vc4_drm.h"
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#include "vc4_screen.h"
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#include "vc4_context.h"
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#include "vc4_resource.h"
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static const struct debug_named_value vc4_debug_options[] = {
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{ "cl", VC4_DEBUG_CL,
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"Dump command list during creation" },
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{ "surf", VC4_DEBUG_SURFACE,
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"Dump surface layouts" },
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{ "qpu", VC4_DEBUG_QPU,
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"Dump generated QPU instructions" },
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{ "qir", VC4_DEBUG_QIR,
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"Dump QPU IR during program compile" },
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{ "nir", VC4_DEBUG_NIR,
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"Dump NIR during program compile" },
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{ "tgsi", VC4_DEBUG_TGSI,
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"Dump TGSI during program compile" },
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{ "shaderdb", VC4_DEBUG_SHADERDB,
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"Dump program compile information for shader-db analysis" },
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{ "perf", VC4_DEBUG_PERF,
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"Print during performance-related events" },
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{ "norast", VC4_DEBUG_NORAST,
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"Skip actual hardware execution of commands" },
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{ "always_flush", VC4_DEBUG_ALWAYS_FLUSH,
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"Flush after each draw call" },
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{ "always_sync", VC4_DEBUG_ALWAYS_SYNC,
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"Wait for finish after each flush" },
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#ifdef USE_VC4_SIMULATOR
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{ "dump", VC4_DEBUG_DUMP,
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"Write a GPU command stream trace file" },
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#endif
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{ NULL }
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};
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DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", vc4_debug_options, 0)
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uint32_t vc4_debug;
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static const char *
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vc4_screen_get_name(struct pipe_screen *pscreen)
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{
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struct vc4_screen *screen = vc4_screen(pscreen);
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if (!screen->name) {
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screen->name = ralloc_asprintf(screen,
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"VC4 V3D %d.%d",
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screen->v3d_ver / 10,
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screen->v3d_ver % 10);
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}
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return screen->name;
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}
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static const char *
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vc4_screen_get_vendor(struct pipe_screen *pscreen)
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{
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return "Broadcom";
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}
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static void
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vc4_screen_destroy(struct pipe_screen *pscreen)
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{
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struct vc4_screen *screen = vc4_screen(pscreen);
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_mesa_hash_table_destroy(screen->bo_handles, NULL);
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vc4_bufmgr_destroy(pscreen);
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slab_destroy_parent(&screen->transfer_pool);
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if (screen->ro)
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screen->ro->destroy(screen->ro);
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#ifdef USE_VC4_SIMULATOR
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vc4_simulator_destroy(screen);
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#endif
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u_transfer_helper_destroy(pscreen->transfer_helper);
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close(screen->fd);
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ralloc_free(pscreen);
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}
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static bool
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vc4_has_feature(struct vc4_screen *screen, uint32_t feature)
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{
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struct drm_vc4_get_param p = {
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.param = feature,
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};
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int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &p);
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if (ret != 0)
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return false;
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return p.value;
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}
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static int
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vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
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{
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struct vc4_screen *screen = vc4_screen(pscreen);
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switch (param) {
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/* Supported features (boolean caps). */
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case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
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case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
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case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
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case PIPE_CAP_NPOT_TEXTURES:
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case PIPE_CAP_BLEND_EQUATION_SEPARATE:
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case PIPE_CAP_TEXTURE_MULTISAMPLE:
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case PIPE_CAP_TEXTURE_SWIZZLE:
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case PIPE_CAP_TEXTURE_BARRIER:
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case PIPE_CAP_TGSI_TEXCOORD:
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return 1;
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case PIPE_CAP_NATIVE_FENCE_FD:
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return screen->has_syncobj;
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case PIPE_CAP_TILE_RASTER_ORDER:
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return vc4_has_feature(screen,
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DRM_VC4_PARAM_SUPPORTS_FIXED_RCL_ORDER);
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/* lying for GL 2.0 */
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case PIPE_CAP_POINT_SPRITE:
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return 1;
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case PIPE_CAP_FS_COORD_ORIGIN_UPPER_LEFT:
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case PIPE_CAP_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
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case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
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return 1;
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case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
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case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
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return 1;
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/* Texturing. */
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case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
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return 2048;
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case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
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return VC4_MAX_MIP_LEVELS;
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case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
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return 0;
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case PIPE_CAP_MAX_VARYINGS:
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return 8;
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case PIPE_CAP_VENDOR_ID:
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return 0x14E4;
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case PIPE_CAP_ACCELERATED:
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return 1;
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case PIPE_CAP_VIDEO_MEMORY: {
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uint64_t system_memory;
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if (!os_get_total_physical_memory(&system_memory))
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return 0;
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return (int)(system_memory >> 20);
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}
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case PIPE_CAP_UMA:
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return 1;
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case PIPE_CAP_ALPHA_TEST:
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case PIPE_CAP_VERTEX_COLOR_CLAMPED:
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case PIPE_CAP_TWO_SIDED_COLOR:
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case PIPE_CAP_TEXRECT:
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case PIPE_CAP_IMAGE_STORE_FORMATTED:
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return 0;
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case PIPE_CAP_SUPPORTED_PRIM_MODES:
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return screen->prim_types;
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default:
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return u_pipe_screen_get_param_defaults(pscreen, param);
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}
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}
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static float
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vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
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{
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switch (param) {
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case PIPE_CAPF_MIN_LINE_WIDTH:
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case PIPE_CAPF_MIN_LINE_WIDTH_AA:
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case PIPE_CAPF_MIN_POINT_SIZE:
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case PIPE_CAPF_MIN_POINT_SIZE_AA:
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return 1;
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case PIPE_CAPF_POINT_SIZE_GRANULARITY:
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case PIPE_CAPF_LINE_WIDTH_GRANULARITY:
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return 0.1;
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case PIPE_CAPF_MAX_LINE_WIDTH:
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case PIPE_CAPF_MAX_LINE_WIDTH_AA:
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return 32;
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case PIPE_CAPF_MAX_POINT_SIZE:
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case PIPE_CAPF_MAX_POINT_SIZE_AA:
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return 512.0f;
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case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
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return 0.0f;
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case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
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return 0.0f;
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case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
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case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
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case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
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return 0.0f;
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default:
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fprintf(stderr, "unknown paramf %d\n", param);
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return 0;
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}
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}
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static int
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vc4_screen_get_shader_param(struct pipe_screen *pscreen,
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enum pipe_shader_type shader,
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enum pipe_shader_cap param)
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{
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if (shader != PIPE_SHADER_VERTEX &&
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shader != PIPE_SHADER_FRAGMENT) {
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return 0;
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}
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/* this is probably not totally correct.. but it's a start: */
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switch (param) {
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case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
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case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
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case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
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case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
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return 16384;
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case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
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return vc4_screen(pscreen)->has_control_flow;
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case PIPE_SHADER_CAP_MAX_INPUTS:
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return 8;
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case PIPE_SHADER_CAP_MAX_OUTPUTS:
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return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
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case PIPE_SHADER_CAP_MAX_TEMPS:
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return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
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case PIPE_SHADER_CAP_MAX_CONST_BUFFER0_SIZE:
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return 16 * 1024 * sizeof(float);
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case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
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return 1;
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case PIPE_SHADER_CAP_CONT_SUPPORTED:
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return 0;
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case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
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case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
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case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
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return 0;
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case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
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return 1;
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case PIPE_SHADER_CAP_SUBROUTINES:
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return 0;
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case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
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return 0;
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case PIPE_SHADER_CAP_INTEGERS:
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return 1;
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case PIPE_SHADER_CAP_INT64_ATOMICS:
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case PIPE_SHADER_CAP_FP16:
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case PIPE_SHADER_CAP_FP16_DERIVATIVES:
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case PIPE_SHADER_CAP_FP16_CONST_BUFFERS:
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case PIPE_SHADER_CAP_INT16:
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case PIPE_SHADER_CAP_GLSL_16BIT_CONSTS:
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case PIPE_SHADER_CAP_DROUND_SUPPORTED:
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case PIPE_SHADER_CAP_DFRACEXP_DLDEXP_SUPPORTED:
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case PIPE_SHADER_CAP_LDEXP_SUPPORTED:
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case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
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return 0;
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case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
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case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
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return VC4_MAX_TEXTURE_SAMPLERS;
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case PIPE_SHADER_CAP_PREFERRED_IR:
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return PIPE_SHADER_IR_NIR;
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case PIPE_SHADER_CAP_SUPPORTED_IRS:
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return 1 << PIPE_SHADER_IR_NIR;
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case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
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case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
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case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
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case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
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return 0;
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default:
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fprintf(stderr, "unknown shader param %d\n", param);
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return 0;
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}
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return 0;
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}
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static bool
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vc4_screen_is_format_supported(struct pipe_screen *pscreen,
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enum pipe_format format,
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enum pipe_texture_target target,
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unsigned sample_count,
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unsigned storage_sample_count,
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unsigned usage)
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{
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struct vc4_screen *screen = vc4_screen(pscreen);
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if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
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return false;
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if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
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return false;
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if (target >= PIPE_MAX_TEXTURE_TYPES) {
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return false;
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}
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if (usage & PIPE_BIND_VERTEX_BUFFER) {
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switch (format) {
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case PIPE_FORMAT_R32G32B32A32_FLOAT:
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case PIPE_FORMAT_R32G32B32_FLOAT:
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case PIPE_FORMAT_R32G32_FLOAT:
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case PIPE_FORMAT_R32_FLOAT:
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case PIPE_FORMAT_R32G32B32A32_SNORM:
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case PIPE_FORMAT_R32G32B32_SNORM:
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case PIPE_FORMAT_R32G32_SNORM:
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case PIPE_FORMAT_R32_SNORM:
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case PIPE_FORMAT_R32G32B32A32_SSCALED:
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case PIPE_FORMAT_R32G32B32_SSCALED:
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case PIPE_FORMAT_R32G32_SSCALED:
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case PIPE_FORMAT_R32_SSCALED:
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case PIPE_FORMAT_R16G16B16A16_UNORM:
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case PIPE_FORMAT_R16G16B16_UNORM:
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case PIPE_FORMAT_R16G16_UNORM:
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case PIPE_FORMAT_R16_UNORM:
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case PIPE_FORMAT_R16G16B16A16_SNORM:
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case PIPE_FORMAT_R16G16B16_SNORM:
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case PIPE_FORMAT_R16G16_SNORM:
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case PIPE_FORMAT_R16_SNORM:
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case PIPE_FORMAT_R16G16B16A16_USCALED:
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case PIPE_FORMAT_R16G16B16_USCALED:
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case PIPE_FORMAT_R16G16_USCALED:
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case PIPE_FORMAT_R16_USCALED:
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case PIPE_FORMAT_R16G16B16A16_SSCALED:
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case PIPE_FORMAT_R16G16B16_SSCALED:
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case PIPE_FORMAT_R16G16_SSCALED:
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case PIPE_FORMAT_R16_SSCALED:
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case PIPE_FORMAT_R8G8B8A8_UNORM:
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case PIPE_FORMAT_R8G8B8_UNORM:
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case PIPE_FORMAT_R8G8_UNORM:
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case PIPE_FORMAT_R8_UNORM:
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case PIPE_FORMAT_R8G8B8A8_SNORM:
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case PIPE_FORMAT_R8G8B8_SNORM:
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case PIPE_FORMAT_R8G8_SNORM:
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case PIPE_FORMAT_R8_SNORM:
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case PIPE_FORMAT_R8G8B8A8_USCALED:
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case PIPE_FORMAT_R8G8B8_USCALED:
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case PIPE_FORMAT_R8G8_USCALED:
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case PIPE_FORMAT_R8_USCALED:
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case PIPE_FORMAT_R8G8B8A8_SSCALED:
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case PIPE_FORMAT_R8G8B8_SSCALED:
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case PIPE_FORMAT_R8G8_SSCALED:
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case PIPE_FORMAT_R8_SSCALED:
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break;
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default:
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return false;
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}
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}
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if ((usage & PIPE_BIND_RENDER_TARGET) &&
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!vc4_rt_format_supported(format)) {
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return false;
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}
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if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
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(!vc4_tex_format_supported(format) ||
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(format == PIPE_FORMAT_ETC1_RGB8 && !screen->has_etc1))) {
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return false;
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}
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if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
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format != PIPE_FORMAT_S8_UINT_Z24_UNORM &&
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format != PIPE_FORMAT_X8Z24_UNORM) {
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return false;
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}
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if ((usage & PIPE_BIND_INDEX_BUFFER) &&
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format != PIPE_FORMAT_R8_UINT &&
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format != PIPE_FORMAT_R16_UINT) {
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return false;
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}
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return true;
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}
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static const uint64_t *vc4_get_modifiers(struct pipe_screen *pscreen, int *num)
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{
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struct vc4_screen *screen = vc4_screen(pscreen);
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static const uint64_t all_modifiers[] = {
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DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
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DRM_FORMAT_MOD_LINEAR,
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};
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int m;
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/* We support both modifiers (tiled and linear) for all sampler
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* formats, but if we don't have the DRM_VC4_GET_TILING ioctl
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* we shouldn't advertise the tiled formats.
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*/
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if (screen->has_tiling_ioctl) {
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m = 0;
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*num = 2;
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} else{
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m = 1;
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*num = 1;
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}
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return &all_modifiers[m];
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}
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static void
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vc4_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
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enum pipe_format format, int max,
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uint64_t *modifiers,
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unsigned int *external_only,
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int *count)
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{
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const uint64_t *available_modifiers;
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int i;
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bool tex_will_lower;
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int num_modifiers;
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available_modifiers = vc4_get_modifiers(pscreen, &num_modifiers);
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if (!modifiers) {
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*count = num_modifiers;
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return;
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}
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*count = MIN2(max, num_modifiers);
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tex_will_lower = !vc4_tex_format_supported(format);
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for (i = 0; i < *count; i++) {
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modifiers[i] = available_modifiers[i];
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if (external_only)
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external_only[i] = tex_will_lower;
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}
|
|
}
|
|
|
|
static bool
|
|
vc4_screen_is_dmabuf_modifier_supported(struct pipe_screen *pscreen,
|
|
uint64_t modifier,
|
|
enum pipe_format format,
|
|
bool *external_only)
|
|
{
|
|
const uint64_t *available_modifiers;
|
|
int i, num_modifiers;
|
|
|
|
available_modifiers = vc4_get_modifiers(pscreen, &num_modifiers);
|
|
|
|
for (i = 0; i < num_modifiers; i++) {
|
|
if (modifier == available_modifiers[i]) {
|
|
if (external_only)
|
|
*external_only = !vc4_tex_format_supported(format);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
vc4_get_chip_info(struct vc4_screen *screen)
|
|
{
|
|
struct drm_vc4_get_param ident0 = {
|
|
.param = DRM_VC4_PARAM_V3D_IDENT0,
|
|
};
|
|
struct drm_vc4_get_param ident1 = {
|
|
.param = DRM_VC4_PARAM_V3D_IDENT1,
|
|
};
|
|
int ret;
|
|
|
|
ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
|
|
if (ret != 0) {
|
|
if (errno == EINVAL) {
|
|
/* Backwards compatibility with 2835 kernels which
|
|
* only do V3D 2.1.
|
|
*/
|
|
screen->v3d_ver = 21;
|
|
return true;
|
|
} else {
|
|
fprintf(stderr, "Couldn't get V3D IDENT0: %s\n",
|
|
strerror(errno));
|
|
return false;
|
|
}
|
|
}
|
|
ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident1);
|
|
if (ret != 0) {
|
|
fprintf(stderr, "Couldn't get V3D IDENT1: %s\n",
|
|
strerror(errno));
|
|
return false;
|
|
}
|
|
|
|
uint32_t major = (ident0.value >> 24) & 0xff;
|
|
uint32_t minor = (ident1.value >> 0) & 0xf;
|
|
screen->v3d_ver = major * 10 + minor;
|
|
|
|
if (screen->v3d_ver != 21 && screen->v3d_ver != 26) {
|
|
fprintf(stderr,
|
|
"V3D %d.%d not supported by this version of Mesa.\n",
|
|
screen->v3d_ver / 10,
|
|
screen->v3d_ver % 10);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
struct pipe_screen *
|
|
vc4_screen_create(int fd, struct renderonly *ro)
|
|
{
|
|
struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
|
|
uint64_t syncobj_cap = 0;
|
|
struct pipe_screen *pscreen;
|
|
int err;
|
|
|
|
pscreen = &screen->base;
|
|
|
|
pscreen->destroy = vc4_screen_destroy;
|
|
pscreen->get_param = vc4_screen_get_param;
|
|
pscreen->get_paramf = vc4_screen_get_paramf;
|
|
pscreen->get_shader_param = vc4_screen_get_shader_param;
|
|
pscreen->context_create = vc4_context_create;
|
|
pscreen->is_format_supported = vc4_screen_is_format_supported;
|
|
|
|
screen->fd = fd;
|
|
screen->ro = ro;
|
|
|
|
list_inithead(&screen->bo_cache.time_list);
|
|
(void) mtx_init(&screen->bo_handles_mutex, mtx_plain);
|
|
screen->bo_handles = util_hash_table_create_ptr_keys();
|
|
|
|
screen->has_control_flow =
|
|
vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_BRANCHES);
|
|
screen->has_etc1 =
|
|
vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_ETC1);
|
|
screen->has_threaded_fs =
|
|
vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_THREADED_FS);
|
|
screen->has_madvise =
|
|
vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_MADVISE);
|
|
screen->has_perfmon_ioctl =
|
|
vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_PERFMON);
|
|
|
|
err = drmGetCap(fd, DRM_CAP_SYNCOBJ, &syncobj_cap);
|
|
if (err == 0 && syncobj_cap)
|
|
screen->has_syncobj = true;
|
|
|
|
if (!vc4_get_chip_info(screen))
|
|
goto fail;
|
|
|
|
slab_create_parent(&screen->transfer_pool, sizeof(struct vc4_transfer), 16);
|
|
|
|
vc4_fence_screen_init(screen);
|
|
|
|
#ifdef USE_VC4_SIMULATOR
|
|
vc4_simulator_init(screen);
|
|
#endif
|
|
|
|
vc4_resource_screen_init(pscreen);
|
|
|
|
pscreen->get_name = vc4_screen_get_name;
|
|
pscreen->get_vendor = vc4_screen_get_vendor;
|
|
pscreen->get_device_vendor = vc4_screen_get_vendor;
|
|
pscreen->get_compiler_options = vc4_screen_get_compiler_options;
|
|
pscreen->query_dmabuf_modifiers = vc4_screen_query_dmabuf_modifiers;
|
|
pscreen->is_dmabuf_modifier_supported = vc4_screen_is_dmabuf_modifier_supported;
|
|
|
|
if (screen->has_perfmon_ioctl) {
|
|
pscreen->get_driver_query_group_info = vc4_get_driver_query_group_info;
|
|
pscreen->get_driver_query_info = vc4_get_driver_query_info;
|
|
}
|
|
|
|
/* Generate the bitmask of supported draw primitives. */
|
|
screen->prim_types = BITFIELD_BIT(PIPE_PRIM_POINTS) |
|
|
BITFIELD_BIT(PIPE_PRIM_LINES) |
|
|
BITFIELD_BIT(PIPE_PRIM_LINE_LOOP) |
|
|
BITFIELD_BIT(PIPE_PRIM_LINE_STRIP) |
|
|
BITFIELD_BIT(PIPE_PRIM_TRIANGLES) |
|
|
BITFIELD_BIT(PIPE_PRIM_TRIANGLE_STRIP) |
|
|
BITFIELD_BIT(PIPE_PRIM_TRIANGLE_FAN);
|
|
|
|
|
|
return pscreen;
|
|
|
|
fail:
|
|
close(fd);
|
|
ralloc_free(pscreen);
|
|
return NULL;
|
|
}
|