1 /* 2 * Copyright 2014, 2015 Red Hat. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 #include "util/u_inlines.h" 24 #include "util/u_memory.h" 25 #include "virgl_context.h" 26 #include "virgl_encode.h" 27 #include "virgl_protocol.h" 28 #include "virgl_resource.h" 29 30 static struct pipe_stream_output_target *virgl_create_so_target( 31 struct pipe_context *ctx, 32 struct pipe_resource *buffer, 33 unsigned buffer_offset, 34 unsigned buffer_size) 35 { 36 struct virgl_context *vctx = virgl_context(ctx); 37 struct virgl_resource *res = virgl_resource(buffer); 38 struct virgl_so_target *t = CALLOC_STRUCT(virgl_so_target); 39 uint32_t handle; 40 41 if (!t) 42 return NULL; 43 handle = virgl_object_assign_handle(); 44 45 t->base.reference.count = 1; 46 t->base.context = ctx; 47 pipe_resource_reference(&t->base.buffer, buffer); 48 t->base.buffer_offset = buffer_offset; 49 t->base.buffer_size = buffer_size; 50 t->handle = handle; 51 res->clean = FALSE; 52 virgl_encoder_create_so_target(vctx, handle, res, buffer_offset, buffer_size); 53 return &t->base; 54 } 55 56 static void virgl_destroy_so_target(struct pipe_context *ctx, 57 struct pipe_stream_output_target *target) 58 { 59 struct virgl_context *vctx = virgl_context(ctx); 60 struct virgl_so_target *t = virgl_so_target(target); 61 62 pipe_resource_reference(&t->base.buffer, NULL); 63 virgl_encode_delete_object(vctx, t->handle, VIRGL_OBJECT_STREAMOUT_TARGET); 64 FREE(t); 65 } 66 67 static void virgl_set_so_targets(struct pipe_context *ctx, 68 unsigned num_targets, 69 struct pipe_stream_output_target **targets, 70 const unsigned *offset) 71 { 72 struct virgl_context *vctx = virgl_context(ctx); 73 int i; 74 for (i = 0; i < num_targets; i++) { 75 pipe_resource_reference(&vctx->so_targets[i].base.buffer, targets[i]->buffer); 76 } 77 for (i = num_targets; i < vctx->num_so_targets; i++) 78 pipe_resource_reference(&vctx->so_targets[i].base.buffer, NULL); 79 vctx->num_so_targets = num_targets; 80 virgl_encoder_set_so_targets(vctx, num_targets, targets, 0);//append_bitmask); 81 } 82 83 void virgl_init_so_functions(struct virgl_context *vctx) 84 { 85 vctx->base.create_stream_output_target = virgl_create_so_target; 86 vctx->base.stream_output_target_destroy = virgl_destroy_so_target; 87 vctx->base.set_stream_output_targets = virgl_set_so_targets; 88 } 89
