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 24 /* the virgl hw tgsi vs what the current gallium want will diverge over time. 25 so add a transform stage to remove things we don't want to send unless 26 the receiver supports it. 27 */ 28 #include "tgsi/tgsi_transform.h" 29 #include "virgl_context.h" 30 struct virgl_transform_context { 31 struct tgsi_transform_context base; 32 }; 33 34 /* for now just strip out the new properties the remote doesn't understand 35 yet */ 36 static void 37 virgl_tgsi_transform_property(struct tgsi_transform_context *ctx, 38 struct tgsi_full_property *prop) 39 { 40 switch (prop->Property.PropertyName) { 41 case TGSI_PROPERTY_NUM_CLIPDIST_ENABLED: 42 case TGSI_PROPERTY_NUM_CULLDIST_ENABLED: 43 case TGSI_PROPERTY_NEXT_SHADER: 44 break; 45 default: 46 ctx->emit_property(ctx, prop); 47 break; 48 } 49 } 50 51 struct tgsi_token *virgl_tgsi_transform(const struct tgsi_token *tokens_in) 52 { 53 54 struct virgl_transform_context transform; 55 const uint newLen = tgsi_num_tokens(tokens_in); 56 struct tgsi_token *new_tokens; 57 58 new_tokens = tgsi_alloc_tokens(newLen); 59 if (!new_tokens) 60 return NULL; 61 62 memset(&transform, 0, sizeof(transform)); 63 transform.base.transform_property = virgl_tgsi_transform_property; 64 tgsi_transform_shader(tokens_in, new_tokens, newLen, &transform.base); 65 66 return new_tokens; 67 } 68
