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|---|
| /********************************************************** |
| * Copyright 2008-2012 VMware, Inc. All rights reserved. |
| * |
| * 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 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/u_bitmask.h" |
| #include "util/u_memory.h" |
| #include "svga_context.h" |
| #include "svga_cmd.h" |
| #include "svga_shader.h" |
| |
| |
| |
| /** |
| * Issue the SVGA3D commands to define a new shader. |
| * \param result contains the shader tokens, etc. The result->id field will |
| * be set here. |
| */ |
| enum pipe_error |
| svga_define_shader(struct svga_context *svga, |
| SVGA3dShaderType type, |
| struct svga_shader_variant *variant) |
| { |
| unsigned codeLen = variant->nr_tokens * sizeof(variant->tokens[0]); |
| |
| if (svga_have_gb_objects(svga)) { |
| struct svga_winsys_screen *sws = svga_screen(svga->pipe.screen)->sws; |
| enum pipe_error ret; |
| |
| variant->gb_shader = sws->shader_create(sws, type, |
| variant->tokens, codeLen); |
| if (!variant->gb_shader) |
| return PIPE_ERROR_OUT_OF_MEMORY; |
| |
| ret = SVGA3D_BindGBShader(svga->swc, variant->gb_shader); |
| if (ret != PIPE_OK) { |
| sws->shader_destroy(sws, variant->gb_shader); |
| variant->gb_shader = NULL; |
| } |
| |
| return ret; |
| } |
| else { |
| enum pipe_error ret; |
| |
| /* Allocate an integer ID for the shader */ |
| variant->id = util_bitmask_add(svga->shader_id_bm); |
| if (variant->id == UTIL_BITMASK_INVALID_INDEX) { |
| return PIPE_ERROR_OUT_OF_MEMORY; |
| } |
| |
| /* Issue SVGA3D device command to define the shader */ |
| ret = SVGA3D_DefineShader(svga->swc, |
| variant->id, |
| type, |
| variant->tokens, |
| codeLen); |
| if (ret != PIPE_OK) { |
| /* free the ID */ |
| assert(variant->id != UTIL_BITMASK_INVALID_INDEX); |
| util_bitmask_clear(svga->shader_id_bm, variant->id); |
| variant->id = UTIL_BITMASK_INVALID_INDEX; |
| return ret; |
| } |
| } |
| |
| return PIPE_OK; |
| } |
| |
| |
| |
| enum pipe_error |
| svga_destroy_shader_variant(struct svga_context *svga, |
| SVGA3dShaderType type, |
| struct svga_shader_variant *variant) |
| { |
| enum pipe_error ret = PIPE_OK; |
| |
| if (svga_have_gb_objects(svga)) { |
| struct svga_winsys_screen *sws = svga_screen(svga->pipe.screen)->sws; |
| |
| sws->shader_destroy(sws, variant->gb_shader); |
| variant->gb_shader = NULL; |
| goto end; |
| } |
| |
| /* first try */ |
| if (variant->id != UTIL_BITMASK_INVALID_INDEX) { |
| ret = SVGA3D_DestroyShader(svga->swc, variant->id, type); |
| |
| if (ret != PIPE_OK) { |
| /* flush and try again */ |
| svga_context_flush(svga, NULL); |
| |
| ret = SVGA3D_DestroyShader(svga->swc, variant->id, type); |
| assert(ret == PIPE_OK); |
| } |
| |
| util_bitmask_clear(svga->shader_id_bm, variant->id); |
| } |
| |
| end: |
| FREE((unsigned *)variant->tokens); |
| FREE(variant); |
| |
| return ret; |
| } |