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405 lines
12 KiB
405 lines
12 KiB
/* |
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Copyright (c) 2012, Broadcom Europe Ltd |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of the copyright holder nor the |
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names of its contributors may be used to endorse or promote products |
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derived from this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY |
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#define EGL_EGLEXT_PROTOTYPES /* we want the prototypes so the compiler will check that the signatures match */ |
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#ifndef SYNC_FENCE_KHR_SHORTCUT |
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//#define SYNC_FENCE_KHR_SHORTCUT 0 /* notifications made in driver back-end */ |
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#define SYNC_FENCE_KHR_SHORTCUT 1 /* notifications made in dispatch */ |
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#endif |
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//============================================================================== |
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#include "interface/khronos/common/khrn_client_mangle.h" |
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#include "interface/khronos/common/khrn_client_rpc.h" |
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#include "interface/khronos/ext/egl_khr_sync_client.h" |
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#include "interface/khronos/include/EGL/egl.h" |
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#include "interface/khronos/include/EGL/eglext.h" |
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#if defined(V3D_LEAN) |
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#include "interface/khronos/common/khrn_int_misc_impl.h" |
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#endif |
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//============================================================================== |
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typedef struct { |
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EGLint condition; |
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EGLint threshold; |
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EGLint status; |
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EGLenum type; |
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int name[3]; // Used as ID in khronos_platform_semaphore_create |
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EGL_SYNC_ID_T serversync; |
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/* |
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we keep one master handle to the named semaphore in existence for the |
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lifetime of the sync object, allowing both wait functions and the KHAN |
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message handler to "open, post/wait, close". |
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*/ |
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PLATFORM_SEMAPHORE_T master; |
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} EGL_SYNC_T; |
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//============================================================================== |
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static EGL_SYNC_T *egl_sync_create(EGLSyncKHR sync, EGLenum type, |
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EGLint condition, EGLint threshold, EGLint status) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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EGL_SYNC_T *sync_ptr = (EGL_SYNC_T *)khrn_platform_malloc(sizeof(EGL_SYNC_T), "EGL_SYNC_T"); |
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uint64_t pid = rpc_get_client_id(thread); |
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uint32_t sem; |
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if (!sync_ptr) |
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return 0; |
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sync_ptr->condition = condition; |
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sync_ptr->threshold = threshold; |
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sync_ptr->type = type; |
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sync_ptr->status = status; |
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sync_ptr->name[0] = (int)pid; |
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sync_ptr->name[1] = (int)(pid >> 32); |
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sync_ptr->name[2] = (int)sync; |
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if (khronos_platform_semaphore_create(&sync_ptr->master, sync_ptr->name, 0) != KHR_SUCCESS) { |
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khrn_platform_free(sync_ptr); |
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return 0; |
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} |
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sem = (uint32_t) sync; |
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#if SYNC_FENCE_KHR_SHORTCUT == 1 |
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if (type == EGL_SYNC_FENCE_KHR){ |
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RPC_CALL3(eglIntCreateSyncFence_impl, |
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thread, |
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EGLINTCREATESYNCFENCE_ID, |
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RPC_UINT(condition), |
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RPC_INT(threshold), |
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RPC_UINT(sem)); |
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} else |
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#endif |
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{ |
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sync_ptr->serversync = RPC_UINT_RES(RPC_CALL4_RES(eglIntCreateSync_impl, |
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thread, |
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EGLINTCREATESYNC_ID, |
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RPC_UINT(type), |
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RPC_UINT(condition), |
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RPC_INT(threshold), |
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RPC_UINT(sem))); |
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if (!sync_ptr->serversync) { |
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khronos_platform_semaphore_destroy(&sync_ptr->master); |
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khrn_platform_free(sync_ptr); |
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return 0; |
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} |
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} |
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return sync_ptr; |
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} |
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//------------------------------------------------------------------------------ |
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static void egl_sync_term(EGL_SYNC_T *sync_master) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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#if SYNC_FENCE_KHR_SHORTCUT == 1 |
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if (sync_master->type != EGL_SYNC_FENCE_KHR) |
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#endif |
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{ |
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RPC_CALL1(eglIntDestroySync_impl, |
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thread, |
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EGLINTDESTROYSYNC_ID, |
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RPC_UINT(sync_master->serversync)); |
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} |
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khronos_platform_semaphore_destroy(&sync_master->master); |
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} |
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//------------------------------------------------------------------------------ |
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static void egl_sync_destroy_iterator |
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(KHRN_POINTER_MAP_T *sync_map, uint32_t sync, void *sync_handle, void *data) |
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{ |
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EGL_SYNC_T *sync_ptr = (EGL_SYNC_T *) sync; |
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UNUSED(sync_map); |
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UNUSED(sync_handle); |
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UNUSED(data); |
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vcos_assert(sync_ptr != NULL); |
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egl_sync_term(sync_ptr); |
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khrn_platform_free(sync_ptr); |
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} |
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//------------------------------------------------------------------------------ |
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static EGLBoolean egl_sync_check_attribs(const EGLint *attrib_list, EGLenum type, |
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EGLint *condition, EGLint *threshold, EGLint *status) |
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{ |
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switch (type) { |
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case EGL_SYNC_FENCE_KHR: |
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*condition = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR; |
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*threshold = 0; |
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*status = EGL_UNSIGNALED_KHR; |
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break; |
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default : |
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*condition = EGL_NONE; |
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*threshold = 0; |
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*status = 0; |
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break; |
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} |
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if (attrib_list) { |
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while (1) { |
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int name = *attrib_list++; |
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if (name == EGL_NONE) |
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break; |
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else { |
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/* int value = * */attrib_list++; /* at present no name/value pairs are handled */ |
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switch (name) { |
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default: |
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return EGL_FALSE; |
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} |
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} |
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} |
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} |
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return ((type == EGL_SYNC_FENCE_KHR) || (type == 0)); |
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} |
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//------------------------------------------------------------------------------ |
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static EGLBoolean egl_sync_get_attrib(EGL_SYNC_T *sync, EGLint attrib, EGLint *value) |
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{ |
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switch (attrib) { |
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case EGL_SYNC_TYPE_KHR: |
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*value = sync->type; |
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return EGL_TRUE; |
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case EGL_SYNC_STATUS_KHR: |
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*value = sync->status; |
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return EGL_TRUE; |
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case EGL_SYNC_CONDITION_KHR: |
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*value = sync->condition; |
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return EGL_TRUE; |
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default: |
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return EGL_FALSE; |
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} |
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} |
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//============================================================================== |
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EGLAPI EGLSyncKHR EGLAPIENTRY eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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EGLSyncKHR sync = EGL_NO_SYNC_KHR; |
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CLIENT_LOCK(); |
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{ |
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CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE); |
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EGLint condition; |
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EGLint threshold; |
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EGLint status; |
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if (process) |
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{ |
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if (egl_sync_check_attribs(attrib_list, type, &condition, &threshold, &status)) { |
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EGL_SYNC_T *sync_ptr = egl_sync_create((EGLSyncKHR)(size_t)process->next_sync, type, condition, threshold, status); |
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if (sync_ptr) { |
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if (khrn_pointer_map_insert(&process->syncs, process->next_sync, sync_ptr)) { |
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thread->error = EGL_SUCCESS; |
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sync = (EGLSurface)(size_t)process->next_sync++; |
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} else { |
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thread->error = EGL_BAD_ALLOC; |
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egl_sync_term(sync_ptr); |
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khrn_platform_free(sync_ptr); |
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} |
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} else |
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thread->error = EGL_BAD_ALLOC; |
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} |
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} |
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} |
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CLIENT_UNLOCK(); |
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return sync; |
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} |
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//------------------------------------------------------------------------------ |
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// TODO: should we make sure any syncs have come back before destroying the object? |
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EGLAPI EGLBoolean EGLAPIENTRY eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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EGLBoolean result; |
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CLIENT_LOCK(); |
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{ |
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CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE); |
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if (process) { |
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EGL_SYNC_T *sync_ptr = (EGL_SYNC_T *)khrn_pointer_map_lookup(&process->syncs, (uint32_t)(size_t)sync); |
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if (sync_ptr) { |
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thread->error = EGL_SUCCESS; |
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khrn_pointer_map_delete(&process->syncs, (uint32_t)(uintptr_t)sync); |
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egl_sync_term(sync_ptr); |
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khrn_platform_free(sync_ptr); |
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} else |
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thread->error = EGL_BAD_PARAMETER; |
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result = (thread->error == EGL_SUCCESS ? EGL_TRUE : EGL_FALSE); |
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} else { |
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result = EGL_FALSE; |
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} |
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} |
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CLIENT_UNLOCK(); |
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return result; |
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} |
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//------------------------------------------------------------------------------ |
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EGLAPI EGLint EGLAPIENTRY eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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UNUSED(timeout); |
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CLIENT_LOCK(); |
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{ |
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CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE); |
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if (process) { |
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EGL_SYNC_T *sync_ptr = (EGL_SYNC_T *)khrn_pointer_map_lookup(&process->syncs, (uint32_t)(size_t)sync); |
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if (sync_ptr) { |
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PLATFORM_SEMAPHORE_T semaphore; |
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if( khronos_platform_semaphore_create(&semaphore, sync_ptr->name, 1) == KHR_SUCCESS) { |
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if (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR) |
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RPC_FLUSH(thread); |
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CLIENT_UNLOCK(); |
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khronos_platform_semaphore_acquire(&semaphore); |
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khronos_platform_semaphore_release(&semaphore); |
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khronos_platform_semaphore_destroy(&semaphore); |
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return EGL_CONDITION_SATISFIED_KHR; |
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} else |
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thread->error = EGL_BAD_ALLOC; // not strictly allowed by the spec, but indicates that we failed to create a reference to the named semaphore |
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} else |
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thread->error = EGL_BAD_PARAMETER; |
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} |
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} |
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CLIENT_UNLOCK(); |
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return EGL_FALSE; |
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} |
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//------------------------------------------------------------------------------ |
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EGLAPI EGLBoolean EGLAPIENTRY eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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UNUSED(mode); |
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CLIENT_LOCK(); |
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{ |
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CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE); |
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if (process) { |
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EGL_SYNC_T *sync_ptr = (EGL_SYNC_T *)khrn_pointer_map_lookup(&process->syncs, (uint32_t)(size_t)sync); |
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if (sync_ptr) |
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thread->error = EGL_BAD_MATCH; |
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else |
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thread->error = EGL_BAD_PARAMETER; |
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} |
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} |
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CLIENT_UNLOCK(); |
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return EGL_FALSE; |
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} |
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//------------------------------------------------------------------------------ |
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EGLAPI EGLBoolean EGLAPIENTRY eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value) |
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{ |
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CLIENT_THREAD_STATE_T *thread = CLIENT_GET_THREAD_STATE(); |
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EGLBoolean result = EGL_FALSE; |
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CLIENT_LOCK(); |
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{ |
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CLIENT_PROCESS_STATE_T *process = client_egl_get_process_state(thread, dpy, EGL_TRUE); |
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if (process) |
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{ |
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if (value) |
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{ |
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EGL_SYNC_T *sync_ptr = (EGL_SYNC_T *)khrn_pointer_map_lookup(&process->syncs, (uint32_t)(size_t)sync); |
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if (sync_ptr) { |
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if (egl_sync_get_attrib(sync_ptr, attribute, value)) { |
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thread->error = EGL_SUCCESS; |
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result = EGL_TRUE; |
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} else |
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thread->error = EGL_BAD_ATTRIBUTE; |
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} else |
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thread->error = EGL_BAD_PARAMETER; |
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} |
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else |
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{ |
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thread->error = EGL_BAD_PARAMETER; |
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} |
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} |
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} |
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CLIENT_UNLOCK(); |
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return result; |
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} |
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//------------------------------------------------------------------------------ |
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void egl_sync_destroy_all(KHRN_POINTER_MAP_T *sync_map) |
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{ |
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khrn_pointer_map_iterate(sync_map, egl_sync_destroy_iterator, NULL); |
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} |
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//==============================================================================
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