| /************************************************************************** |
| * |
| * Copyright 2014 Ilia Mirkin. 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 VMWARE 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. |
| * |
| **************************************************************************/ |
| |
| #include "main/imports.h" |
| #include "program/prog_parameter.h" |
| #include "program/prog_print.h" |
| #include "compiler/glsl/ir_uniform.h" |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_defines.h" |
| #include "util/u_inlines.h" |
| #include "util/u_surface.h" |
| |
| #include "st_debug.h" |
| #include "st_cb_bufferobjects.h" |
| #include "st_context.h" |
| #include "st_atom.h" |
| #include "st_program.h" |
| |
| static void |
| st_bind_ssbos(struct st_context *st, struct gl_program *prog, |
| enum pipe_shader_type shader_type) |
| { |
| unsigned i; |
| struct pipe_shader_buffer buffers[MAX_SHADER_STORAGE_BUFFERS]; |
| struct gl_program_constants *c; |
| int buffer_base; |
| if (!prog || !st->pipe->set_shader_buffers) |
| return; |
| |
| c = &st->ctx->Const.Program[prog->info.stage]; |
| |
| buffer_base = st->has_hw_atomics ? 0 : c->MaxAtomicBuffers; |
| |
| for (i = 0; i < prog->info.num_ssbos; i++) { |
| struct gl_buffer_binding *binding; |
| struct st_buffer_object *st_obj; |
| struct pipe_shader_buffer *sb = &buffers[i]; |
| |
| binding = &st->ctx->ShaderStorageBufferBindings[ |
| prog->sh.ShaderStorageBlocks[i]->Binding]; |
| st_obj = st_buffer_object(binding->BufferObject); |
| |
| sb->buffer = st_obj->buffer; |
| |
| if (sb->buffer) { |
| sb->buffer_offset = binding->Offset; |
| sb->buffer_size = sb->buffer->width0 - binding->Offset; |
| |
| /* AutomaticSize is FALSE if the buffer was set with BindBufferRange. |
| * Take the minimum just to be sure. |
| */ |
| if (!binding->AutomaticSize) |
| sb->buffer_size = MIN2(sb->buffer_size, (unsigned) binding->Size); |
| } |
| else { |
| sb->buffer_offset = 0; |
| sb->buffer_size = 0; |
| } |
| } |
| st->pipe->set_shader_buffers(st->pipe, shader_type, buffer_base, |
| prog->info.num_ssbos, buffers, |
| prog->sh.ShaderStorageBlocksWriteAccess); |
| /* clear out any stale shader buffers */ |
| if (prog->info.num_ssbos < c->MaxShaderStorageBlocks) |
| st->pipe->set_shader_buffers( |
| st->pipe, shader_type, |
| buffer_base + prog->info.num_ssbos, |
| c->MaxShaderStorageBlocks - prog->info.num_ssbos, |
| NULL, 0); |
| } |
| |
| void st_bind_vs_ssbos(struct st_context *st) |
| { |
| struct gl_program *prog = |
| st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; |
| |
| st_bind_ssbos(st, prog, PIPE_SHADER_VERTEX); |
| } |
| |
| void st_bind_fs_ssbos(struct st_context *st) |
| { |
| struct gl_program *prog = |
| st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT]; |
| |
| st_bind_ssbos(st, prog, PIPE_SHADER_FRAGMENT); |
| } |
| |
| void st_bind_gs_ssbos(struct st_context *st) |
| { |
| struct gl_program *prog = |
| st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]; |
| |
| st_bind_ssbos(st, prog, PIPE_SHADER_GEOMETRY); |
| } |
| |
| void st_bind_tcs_ssbos(struct st_context *st) |
| { |
| struct gl_program *prog = |
| st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL]; |
| |
| st_bind_ssbos(st, prog, PIPE_SHADER_TESS_CTRL); |
| } |
| |
| void st_bind_tes_ssbos(struct st_context *st) |
| { |
| struct gl_program *prog = |
| st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL]; |
| |
| st_bind_ssbos(st, prog, PIPE_SHADER_TESS_EVAL); |
| } |
| |
| void st_bind_cs_ssbos(struct st_context *st) |
| { |
| struct gl_program *prog = |
| st->ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE]; |
| |
| st_bind_ssbos(st, prog, PIPE_SHADER_COMPUTE); |
| } |