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/**************************************************************************
*
* 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;
}
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