From 807c6931fe683fd844ceec1b023232181e6aae03 Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 28 Dec 2010 16:10:20 +0000 Subject: xserver and mesa git update 28-12-2010 --- mesalib/src/mesa/state_tracker/st_atom_constbuf.c | 171 ++++++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 mesalib/src/mesa/state_tracker/st_atom_constbuf.c (limited to 'mesalib/src/mesa/state_tracker/st_atom_constbuf.c') diff --git a/mesalib/src/mesa/state_tracker/st_atom_constbuf.c b/mesalib/src/mesa/state_tracker/st_atom_constbuf.c new file mode 100644 index 000000000..5672215f7 --- /dev/null +++ b/mesalib/src/mesa/state_tracker/st_atom_constbuf.c @@ -0,0 +1,171 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 TUNGSTEN GRAPHICS 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. + * + **************************************************************************/ + +/* + * Authors: + * Keith Whitwell + * Brian Paul + */ + +#include "main/imports.h" +#include "program/prog_parameter.h" +#include "program/prog_print.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" + +#include "st_debug.h" +#include "st_context.h" +#include "st_atom.h" +#include "st_atom_constbuf.h" +#include "st_program.h" + + +/** + * Pass the given program parameters to the graphics pipe as a + * constant buffer. + * \param shader_type either PIPE_SHADER_VERTEX or PIPE_SHADER_FRAGMENT + */ +void st_upload_constants( struct st_context *st, + struct gl_program_parameter_list *params, + unsigned shader_type) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_resource **cbuf = &st->state.constants[shader_type]; + + assert(shader_type == PIPE_SHADER_VERTEX || + shader_type == PIPE_SHADER_FRAGMENT || + shader_type == PIPE_SHADER_GEOMETRY); + + /* update constants */ + if (params && params->NumParameters) { + const uint paramBytes = params->NumParameters * sizeof(GLfloat) * 4; + + /* Update the constants which come from fixed-function state, such as + * transformation matrices, fog factors, etc. The rest of the values in + * the parameters list are explicitly set by the user with glUniform, + * glProgramParameter(), etc. + */ + _mesa_load_state_parameters(st->ctx, params); + + /* We always need to get a new buffer, to keep the drivers simple and + * avoid gratuitous rendering synchronization. + */ + pipe_resource_reference(cbuf, NULL ); + *cbuf = pipe_buffer_create(pipe->screen, + PIPE_BIND_CONSTANT_BUFFER, + paramBytes ); + + if (ST_DEBUG & DEBUG_CONSTANTS) { + debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n", + __FUNCTION__, shader_type, params->NumParameters, + params->StateFlags); + _mesa_print_parameter_list(params); + } + + /* load Mesa constants into the constant buffer */ + pipe_buffer_write(st->pipe, *cbuf, + 0, paramBytes, + params->ParameterValues); + + st->pipe->set_constant_buffer(st->pipe, shader_type, 0, *cbuf); + } + else if (*cbuf) { + st->constants.tracked_state[shader_type].dirty.mesa = 0x0; + + pipe_resource_reference(cbuf, NULL); + st->pipe->set_constant_buffer(st->pipe, shader_type, 0, NULL); + } +} + + +/** + * Vertex shader: + */ +static void update_vs_constants(struct st_context *st ) +{ + struct st_vertex_program *vp = st->vp; + struct gl_program_parameter_list *params = vp->Base.Base.Parameters; + + st_upload_constants( st, params, PIPE_SHADER_VERTEX ); +} + + +const struct st_tracked_state st_update_vs_constants = { + "st_update_vs_constants", /* name */ + { /* dirty */ + (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS), /* mesa */ + ST_NEW_VERTEX_PROGRAM, /* st */ + }, + update_vs_constants /* update */ +}; + + + +/** + * Fragment shader: + */ +static void update_fs_constants(struct st_context *st ) +{ + struct st_fragment_program *fp = st->fp; + struct gl_program_parameter_list *params = fp->Base.Base.Parameters; + + st_upload_constants( st, params, PIPE_SHADER_FRAGMENT ); +} + + +const struct st_tracked_state st_update_fs_constants = { + "st_update_fs_constants", /* name */ + { /* dirty */ + (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS), /* mesa */ + ST_NEW_FRAGMENT_PROGRAM, /* st */ + }, + update_fs_constants /* update */ +}; + +/* Geometry shader: + */ +static void update_gs_constants(struct st_context *st ) +{ + struct st_geometry_program *gp = st->gp; + struct gl_program_parameter_list *params; + + if (gp) { + params = gp->Base.Base.Parameters; + st_upload_constants( st, params, PIPE_SHADER_GEOMETRY ); + } +} + +const struct st_tracked_state st_update_gs_constants = { + "st_update_gs_constants", /* name */ + { /* dirty */ + (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS), /* mesa */ + ST_NEW_GEOMETRY_PROGRAM, /* st */ + }, + update_gs_constants /* update */ +}; -- cgit v1.2.3