| /************************************************************************** |
| * |
| * Copyright 2011 Marek Olšák <maraeo@gmail.com> |
| * 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, sub license, 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 NON-INFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS 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. |
| * |
| **************************************************************************/ |
| |
| |
| /** |
| * glTextureBarrierNV function |
| * |
| * \author Marek Olšák |
| */ |
| |
| |
| #include "main/imports.h" |
| #include "main/context.h" |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_defines.h" |
| #include "st_context.h" |
| #include "st_cb_texturebarrier.h" |
| |
| |
| /** |
| * Called via ctx->Driver.TextureBarrier() |
| */ |
| static void |
| st_TextureBarrier(struct gl_context *ctx) |
| { |
| struct pipe_context *pipe = st_context(ctx)->pipe; |
| |
| pipe->texture_barrier(pipe); |
| } |
| |
| |
| /** |
| * Called via ctx->Driver.MemoryBarrier() |
| */ |
| static void |
| st_MemoryBarrier(struct gl_context *ctx, GLbitfield barriers) |
| { |
| struct pipe_context *pipe = st_context(ctx)->pipe; |
| unsigned flags = 0; |
| |
| if (barriers & GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT) |
| flags |= PIPE_BARRIER_VERTEX_BUFFER; |
| if (barriers & GL_ELEMENT_ARRAY_BARRIER_BIT) |
| flags |= PIPE_BARRIER_INDEX_BUFFER; |
| if (barriers & GL_UNIFORM_BARRIER_BIT) |
| flags |= PIPE_BARRIER_CONSTANT_BUFFER; |
| if (barriers & GL_TEXTURE_FETCH_BARRIER_BIT) |
| flags |= PIPE_BARRIER_TEXTURE; |
| if (barriers & GL_SHADER_IMAGE_ACCESS_BARRIER_BIT) |
| flags |= PIPE_BARRIER_IMAGE; |
| if (barriers & GL_COMMAND_BARRIER_BIT) |
| flags |= PIPE_BARRIER_INDIRECT_BUFFER; |
| if (barriers & GL_PIXEL_BUFFER_BARRIER_BIT) { |
| /* The PBO may be |
| * (1) bound as a texture for PBO uploads, or |
| * (2) accessed by the CPU via transfer ops. |
| * For case (2), we assume automatic flushing by the driver. |
| */ |
| flags |= PIPE_BARRIER_TEXTURE; |
| } |
| /* GL_TEXTURE_UPDATE_BARRIER_BIT: |
| * Texture updates translate to: |
| * (1) texture transfers to/from the CPU, |
| * (2) texture as blit destination, or |
| * (3) texture as framebuffer. |
| * In all cases, we assume the driver does the required flushing |
| * automatically. |
| */ |
| /* GL_BUFFER_UPDATE_BARRIER_BIT: |
| * Buffer updates translate to |
| * (1) buffer transfers to/from the CPU, |
| * (2) resource copies and clears. |
| * In all cases, we assume the driver does the required flushing |
| * automatically. |
| */ |
| if (barriers & GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT) |
| flags |= PIPE_BARRIER_MAPPED_BUFFER; |
| if (barriers & GL_QUERY_BUFFER_BARRIER_BIT) |
| flags |= PIPE_BARRIER_QUERY_BUFFER; |
| if (barriers & GL_FRAMEBUFFER_BARRIER_BIT) |
| flags |= PIPE_BARRIER_FRAMEBUFFER; |
| if (barriers & GL_TRANSFORM_FEEDBACK_BARRIER_BIT) |
| flags |= PIPE_BARRIER_STREAMOUT_BUFFER; |
| if (barriers & GL_ATOMIC_COUNTER_BARRIER_BIT) |
| flags |= PIPE_BARRIER_SHADER_BUFFER; |
| if (barriers & GL_SHADER_STORAGE_BARRIER_BIT) |
| flags |= PIPE_BARRIER_SHADER_BUFFER; |
| |
| if (flags && pipe->memory_barrier) |
| pipe->memory_barrier(pipe, flags); |
| } |
| |
| void st_init_texture_barrier_functions(struct dd_function_table *functions) |
| { |
| functions->TextureBarrier = st_TextureBarrier; |
| functions->MemoryBarrier = st_MemoryBarrier; |
| } |