| /************************************************************************** |
| * |
| * 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 <keith@tungstengraphics.com> |
| * 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; |
| |
| _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 { |
| st->constants.tracked_state[shader_type].dirty.mesa = 0x0; |
| } |
| } |
| |
| |
| /** |
| * 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 */ |
| }; |