| /* |
| * Copyright © 2014 Broadcom |
| * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org> |
| * |
| * 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. |
| */ |
| |
| #include "util/os_misc.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_screen.h" |
| #include "pipe/p_state.h" |
| |
| #include "util/u_cpu_detect.h" |
| #include "util/u_debug.h" |
| #include "util/u_memory.h" |
| #include "util/u_format.h" |
| #include "util/u_hash_table.h" |
| #include "util/u_screen.h" |
| #include "util/u_transfer_helper.h" |
| #include "util/ralloc.h" |
| |
| #include <xf86drm.h> |
| #include "drm_fourcc.h" |
| #include "vc4_drm.h" |
| #include "vc4_screen.h" |
| #include "vc4_context.h" |
| #include "vc4_resource.h" |
| |
| static const struct debug_named_value debug_options[] = { |
| { "cl", VC4_DEBUG_CL, |
| "Dump command list during creation" }, |
| { "surf", VC4_DEBUG_SURFACE, |
| "Dump surface layouts" }, |
| { "qpu", VC4_DEBUG_QPU, |
| "Dump generated QPU instructions" }, |
| { "qir", VC4_DEBUG_QIR, |
| "Dump QPU IR during program compile" }, |
| { "nir", VC4_DEBUG_NIR, |
| "Dump NIR during program compile" }, |
| { "tgsi", VC4_DEBUG_TGSI, |
| "Dump TGSI during program compile" }, |
| { "shaderdb", VC4_DEBUG_SHADERDB, |
| "Dump program compile information for shader-db analysis" }, |
| { "perf", VC4_DEBUG_PERF, |
| "Print during performance-related events" }, |
| { "norast", VC4_DEBUG_NORAST, |
| "Skip actual hardware execution of commands" }, |
| { "always_flush", VC4_DEBUG_ALWAYS_FLUSH, |
| "Flush after each draw call" }, |
| { "always_sync", VC4_DEBUG_ALWAYS_SYNC, |
| "Wait for finish after each flush" }, |
| #ifdef USE_VC4_SIMULATOR |
| { "dump", VC4_DEBUG_DUMP, |
| "Write a GPU command stream trace file" }, |
| #endif |
| { NULL } |
| }; |
| |
| DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0) |
| uint32_t vc4_debug; |
| |
| static const char * |
| vc4_screen_get_name(struct pipe_screen *pscreen) |
| { |
| struct vc4_screen *screen = vc4_screen(pscreen); |
| |
| if (!screen->name) { |
| screen->name = ralloc_asprintf(screen, |
| "VC4 V3D %d.%d", |
| screen->v3d_ver / 10, |
| screen->v3d_ver % 10); |
| } |
| |
| return screen->name; |
| } |
| |
| static const char * |
| vc4_screen_get_vendor(struct pipe_screen *pscreen) |
| { |
| return "Broadcom"; |
| } |
| |
| static void |
| vc4_screen_destroy(struct pipe_screen *pscreen) |
| { |
| struct vc4_screen *screen = vc4_screen(pscreen); |
| |
| util_hash_table_destroy(screen->bo_handles); |
| vc4_bufmgr_destroy(pscreen); |
| slab_destroy_parent(&screen->transfer_pool); |
| free(screen->ro); |
| |
| #ifdef USE_VC4_SIMULATOR |
| vc4_simulator_destroy(screen); |
| #endif |
| |
| u_transfer_helper_destroy(pscreen->transfer_helper); |
| |
| close(screen->fd); |
| ralloc_free(pscreen); |
| } |
| |
| static bool |
| vc4_has_feature(struct vc4_screen *screen, uint32_t feature) |
| { |
| struct drm_vc4_get_param p = { |
| .param = feature, |
| }; |
| int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &p); |
| |
| if (ret != 0) |
| return false; |
| |
| return p.value; |
| } |
| |
| static int |
| vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) |
| { |
| struct vc4_screen *screen = vc4_screen(pscreen); |
| |
| switch (param) { |
| /* Supported features (boolean caps). */ |
| case PIPE_CAP_VERTEX_COLOR_CLAMPED: |
| case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: |
| case PIPE_CAP_FRAGMENT_COLOR_CLAMPED: |
| case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT: |
| case PIPE_CAP_NPOT_TEXTURES: |
| case PIPE_CAP_SHAREABLE_SHADERS: |
| case PIPE_CAP_BLEND_EQUATION_SEPARATE: |
| case PIPE_CAP_TEXTURE_MULTISAMPLE: |
| case PIPE_CAP_TEXTURE_SWIZZLE: |
| case PIPE_CAP_TEXTURE_BARRIER: |
| return 1; |
| |
| case PIPE_CAP_NATIVE_FENCE_FD: |
| return screen->has_syncobj; |
| |
| case PIPE_CAP_TILE_RASTER_ORDER: |
| return vc4_has_feature(screen, |
| DRM_VC4_PARAM_SUPPORTS_FIXED_RCL_ORDER); |
| |
| /* lying for GL 2.0 */ |
| case PIPE_CAP_OCCLUSION_QUERY: |
| case PIPE_CAP_POINT_SPRITE: |
| return 1; |
| |
| case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: |
| case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: |
| return 1; |
| |
| case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES: |
| case PIPE_CAP_MIXED_COLOR_DEPTH_BITS: |
| return 1; |
| |
| /* Texturing. */ |
| case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: |
| case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: |
| return VC4_MAX_MIP_LEVELS; |
| case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: |
| /* Note: Not supported in hardware, just faking it. */ |
| return 5; |
| |
| case PIPE_CAP_MAX_VARYINGS: |
| return 8; |
| |
| case PIPE_CAP_VENDOR_ID: |
| return 0x14E4; |
| case PIPE_CAP_ACCELERATED: |
| return 1; |
| case PIPE_CAP_VIDEO_MEMORY: { |
| uint64_t system_memory; |
| |
| if (!os_get_total_physical_memory(&system_memory)) |
| return 0; |
| |
| return (int)(system_memory >> 20); |
| } |
| case PIPE_CAP_UMA: |
| return 1; |
| |
| default: |
| return u_pipe_screen_get_param_defaults(pscreen, param); |
| } |
| } |
| |
| static float |
| vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param) |
| { |
| switch (param) { |
| case PIPE_CAPF_MAX_LINE_WIDTH: |
| case PIPE_CAPF_MAX_LINE_WIDTH_AA: |
| return 32; |
| |
| case PIPE_CAPF_MAX_POINT_WIDTH: |
| case PIPE_CAPF_MAX_POINT_WIDTH_AA: |
| return 512.0f; |
| |
| case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY: |
| return 0.0f; |
| case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS: |
| return 0.0f; |
| |
| case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE: |
| case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE: |
| case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY: |
| return 0.0f; |
| default: |
| fprintf(stderr, "unknown paramf %d\n", param); |
| return 0; |
| } |
| } |
| |
| static int |
| vc4_screen_get_shader_param(struct pipe_screen *pscreen, |
| enum pipe_shader_type shader, |
| enum pipe_shader_cap param) |
| { |
| if (shader != PIPE_SHADER_VERTEX && |
| shader != PIPE_SHADER_FRAGMENT) { |
| return 0; |
| } |
| |
| /* this is probably not totally correct.. but it's a start: */ |
| switch (param) { |
| case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: |
| case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: |
| case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: |
| case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: |
| return 16384; |
| |
| case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: |
| return vc4_screen(pscreen)->has_control_flow; |
| |
| case PIPE_SHADER_CAP_MAX_INPUTS: |
| return 8; |
| case PIPE_SHADER_CAP_MAX_OUTPUTS: |
| return shader == PIPE_SHADER_FRAGMENT ? 1 : 8; |
| case PIPE_SHADER_CAP_MAX_TEMPS: |
| return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */ |
| case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE: |
| return 16 * 1024 * sizeof(float); |
| case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: |
| return 1; |
| case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: |
| return 0; |
| case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: |
| case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: |
| case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: |
| return 0; |
| case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: |
| return 1; |
| case PIPE_SHADER_CAP_SUBROUTINES: |
| return 0; |
| case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED: |
| return 0; |
| case PIPE_SHADER_CAP_INTEGERS: |
| return 1; |
| case PIPE_SHADER_CAP_INT64_ATOMICS: |
| case PIPE_SHADER_CAP_FP16: |
| case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE: |
| return 0; |
| case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: |
| case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS: |
| return VC4_MAX_TEXTURE_SAMPLERS; |
| case PIPE_SHADER_CAP_PREFERRED_IR: |
| return PIPE_SHADER_IR_NIR; |
| case PIPE_SHADER_CAP_SUPPORTED_IRS: |
| return 0; |
| case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT: |
| return 32; |
| case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS: |
| case PIPE_SHADER_CAP_MAX_SHADER_IMAGES: |
| case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD: |
| case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS: |
| case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS: |
| case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS: |
| return 0; |
| case PIPE_SHADER_CAP_SCALAR_ISA: |
| return 1; |
| default: |
| fprintf(stderr, "unknown shader param %d\n", param); |
| return 0; |
| } |
| return 0; |
| } |
| |
| static boolean |
| vc4_screen_is_format_supported(struct pipe_screen *pscreen, |
| enum pipe_format format, |
| enum pipe_texture_target target, |
| unsigned sample_count, |
| unsigned storage_sample_count, |
| unsigned usage) |
| { |
| struct vc4_screen *screen = vc4_screen(pscreen); |
| |
| if (MAX2(1, sample_count) != MAX2(1, storage_sample_count)) |
| return false; |
| |
| if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES) |
| return FALSE; |
| |
| if (target >= PIPE_MAX_TEXTURE_TYPES) { |
| return FALSE; |
| } |
| |
| if (usage & PIPE_BIND_VERTEX_BUFFER) { |
| switch (format) { |
| case PIPE_FORMAT_R32G32B32A32_FLOAT: |
| case PIPE_FORMAT_R32G32B32_FLOAT: |
| case PIPE_FORMAT_R32G32_FLOAT: |
| case PIPE_FORMAT_R32_FLOAT: |
| case PIPE_FORMAT_R32G32B32A32_SNORM: |
| case PIPE_FORMAT_R32G32B32_SNORM: |
| case PIPE_FORMAT_R32G32_SNORM: |
| case PIPE_FORMAT_R32_SNORM: |
| case PIPE_FORMAT_R32G32B32A32_SSCALED: |
| case PIPE_FORMAT_R32G32B32_SSCALED: |
| case PIPE_FORMAT_R32G32_SSCALED: |
| case PIPE_FORMAT_R32_SSCALED: |
| case PIPE_FORMAT_R16G16B16A16_UNORM: |
| case PIPE_FORMAT_R16G16B16_UNORM: |
| case PIPE_FORMAT_R16G16_UNORM: |
| case PIPE_FORMAT_R16_UNORM: |
| case PIPE_FORMAT_R16G16B16A16_SNORM: |
| case PIPE_FORMAT_R16G16B16_SNORM: |
| case PIPE_FORMAT_R16G16_SNORM: |
| case PIPE_FORMAT_R16_SNORM: |
| case PIPE_FORMAT_R16G16B16A16_USCALED: |
| case PIPE_FORMAT_R16G16B16_USCALED: |
| case PIPE_FORMAT_R16G16_USCALED: |
| case PIPE_FORMAT_R16_USCALED: |
| case PIPE_FORMAT_R16G16B16A16_SSCALED: |
| case PIPE_FORMAT_R16G16B16_SSCALED: |
| case PIPE_FORMAT_R16G16_SSCALED: |
| case PIPE_FORMAT_R16_SSCALED: |
| case PIPE_FORMAT_R8G8B8A8_UNORM: |
| case PIPE_FORMAT_R8G8B8_UNORM: |
| case PIPE_FORMAT_R8G8_UNORM: |
| case PIPE_FORMAT_R8_UNORM: |
| case PIPE_FORMAT_R8G8B8A8_SNORM: |
| case PIPE_FORMAT_R8G8B8_SNORM: |
| case PIPE_FORMAT_R8G8_SNORM: |
| case PIPE_FORMAT_R8_SNORM: |
| case PIPE_FORMAT_R8G8B8A8_USCALED: |
| case PIPE_FORMAT_R8G8B8_USCALED: |
| case PIPE_FORMAT_R8G8_USCALED: |
| case PIPE_FORMAT_R8_USCALED: |
| case PIPE_FORMAT_R8G8B8A8_SSCALED: |
| case PIPE_FORMAT_R8G8B8_SSCALED: |
| case PIPE_FORMAT_R8G8_SSCALED: |
| case PIPE_FORMAT_R8_SSCALED: |
| break; |
| default: |
| return FALSE; |
| } |
| } |
| |
| if ((usage & PIPE_BIND_RENDER_TARGET) && |
| !vc4_rt_format_supported(format)) { |
| return FALSE; |
| } |
| |
| if ((usage & PIPE_BIND_SAMPLER_VIEW) && |
| (!vc4_tex_format_supported(format) || |
| (format == PIPE_FORMAT_ETC1_RGB8 && !screen->has_etc1))) { |
| return FALSE; |
| } |
| |
| if ((usage & PIPE_BIND_DEPTH_STENCIL) && |
| format != PIPE_FORMAT_S8_UINT_Z24_UNORM && |
| format != PIPE_FORMAT_X8Z24_UNORM) { |
| return FALSE; |
| } |
| |
| if ((usage & PIPE_BIND_INDEX_BUFFER) && |
| format != PIPE_FORMAT_I8_UINT && |
| format != PIPE_FORMAT_I16_UINT) { |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| static void |
| vc4_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen, |
| enum pipe_format format, int max, |
| uint64_t *modifiers, |
| unsigned int *external_only, |
| int *count) |
| { |
| int m, i; |
| uint64_t available_modifiers[] = { |
| DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED, |
| DRM_FORMAT_MOD_LINEAR, |
| }; |
| struct vc4_screen *screen = vc4_screen(pscreen); |
| int num_modifiers = screen->has_tiling_ioctl ? 2 : 1; |
| |
| if (!modifiers) { |
| *count = num_modifiers; |
| return; |
| } |
| |
| *count = MIN2(max, num_modifiers); |
| m = screen->has_tiling_ioctl ? 0 : 1; |
| /* We support both modifiers (tiled and linear) for all sampler |
| * formats, but if we don't have the DRM_VC4_GET_TILING ioctl |
| * we shouldn't advertise the tiled formats. |
| */ |
| for (i = 0; i < *count; i++) { |
| modifiers[i] = available_modifiers[m++]; |
| if (external_only) |
| external_only[i] = false; |
| } |
| } |
| |
| #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x))) |
| |
| static unsigned handle_hash(void *key) |
| { |
| return PTR_TO_UINT(key); |
| } |
| |
| static int handle_compare(void *key1, void *key2) |
| { |
| return PTR_TO_UINT(key1) != PTR_TO_UINT(key2); |
| } |
| |
| 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; |
| if (ro) { |
| screen->ro = renderonly_dup(ro); |
| if (!screen->ro) { |
| fprintf(stderr, "Failed to dup renderonly object\n"); |
| ralloc_free(screen); |
| return NULL; |
| } |
| } |
| |
| list_inithead(&screen->bo_cache.time_list); |
| (void) mtx_init(&screen->bo_handles_mutex, mtx_plain); |
| screen->bo_handles = util_hash_table_create(handle_hash, handle_compare); |
| |
| 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; |
| |
| util_cpu_detect(); |
| |
| slab_create_parent(&screen->transfer_pool, sizeof(struct vc4_transfer), 16); |
| |
| vc4_fence_screen_init(screen); |
| |
| vc4_debug = debug_get_option_vc4_debug(); |
| if (vc4_debug & VC4_DEBUG_SHADERDB) |
| vc4_debug |= VC4_DEBUG_NORAST; |
| |
| #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; |
| |
| 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; |
| } |
| |
| return pscreen; |
| |
| fail: |
| close(fd); |
| ralloc_free(pscreen); |
| return NULL; |
| } |
