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/************************************************************************** |
* |
* Copyright 2007 VMware, Inc. |
* 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. |
* |
**************************************************************************/ |
|
/* |
* Authors: |
* Keith Whitwell <keithw@vmware.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 "util/u_upload_mgr.h" |
#include "cso_cache/cso_context.h" |
|
#include "st_debug.h" |
#include "st_context.h" |
#include "st_atom.h" |
#include "st_atom_constbuf.h" |
#include "st_program.h" |
#include "st_cb_bufferobjects.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) |
{ |
assert(shader_type == PIPE_SHADER_VERTEX || |
shader_type == PIPE_SHADER_FRAGMENT || |
shader_type == PIPE_SHADER_GEOMETRY); |
|
/* update constants */ |
if (params && params->NumParameters) { |
struct pipe_constant_buffer cb; |
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. |
* Let's use a user buffer to avoid an unnecessary copy. |
*/ |
if (st->constbuf_uploader) { |
cb.buffer = NULL; |
cb.user_buffer = NULL; |
u_upload_data(st->constbuf_uploader, 0, paramBytes, |
params->ParameterValues, &cb.buffer_offset, &cb.buffer); |
u_upload_unmap(st->constbuf_uploader); |
} else { |
cb.buffer = NULL; |
cb.user_buffer = params->ParameterValues; |
cb.buffer_offset = 0; |
} |
cb.buffer_size = paramBytes; |
|
if (ST_DEBUG & DEBUG_CONSTANTS) { |
debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n", |
__func__, shader_type, params->NumParameters, |
params->StateFlags); |
_mesa_print_parameter_list(params); |
} |
|
cso_set_constant_buffer(st->cso_context, shader_type, 0, &cb); |
pipe_resource_reference(&cb.buffer, NULL); |
|
st->state.constants[shader_type].ptr = params->ParameterValues; |
st->state.constants[shader_type].size = paramBytes; |
} |
else if (st->state.constants[shader_type].ptr) { |
/* Unbind. */ |
st->state.constants[shader_type].ptr = NULL; |
st->state.constants[shader_type].size = 0; |
cso_set_constant_buffer(st->cso_context, 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_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_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_CONSTANTS, /* mesa */ |
ST_NEW_GEOMETRY_PROGRAM, /* st */ |
}, |
update_gs_constants /* update */ |
}; |
|
static void st_bind_ubos(struct st_context *st, |
struct gl_shader *shader, |
unsigned shader_type) |
{ |
unsigned i; |
struct pipe_constant_buffer cb = { 0 }; |
|
if (!shader) |
return; |
|
for (i = 0; i < shader->NumUniformBlocks; i++) { |
struct gl_uniform_buffer_binding *binding; |
struct st_buffer_object *st_obj; |
|
binding = &st->ctx->UniformBufferBindings[shader->UniformBlocks[i].Binding]; |
st_obj = st_buffer_object(binding->BufferObject); |
|
cb.buffer = st_obj->buffer; |
|
if (cb.buffer) { |
cb.buffer_offset = binding->Offset; |
cb.buffer_size = cb.buffer->width0 - binding->Offset; |
|
/* AutomaticSize is FALSE if the buffer was set with BindBufferRange. |
* Take the minimum just to be sure. |
*/ |
if (!binding->AutomaticSize) |
cb.buffer_size = MIN2(cb.buffer_size, (unsigned) binding->Size); |
} |
else { |
cb.buffer_offset = 0; |
cb.buffer_size = 0; |
} |
|
cso_set_constant_buffer(st->cso_context, shader_type, 1 + i, &cb); |
} |
} |
|
static void bind_vs_ubos(struct st_context *st) |
{ |
struct gl_shader_program *prog = |
st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; |
|
if (!prog) |
return; |
|
st_bind_ubos(st, prog->_LinkedShaders[MESA_SHADER_VERTEX], PIPE_SHADER_VERTEX); |
} |
|
const struct st_tracked_state st_bind_vs_ubos = { |
"st_bind_vs_ubos", |
{ |
0, |
ST_NEW_VERTEX_PROGRAM | ST_NEW_UNIFORM_BUFFER, |
}, |
bind_vs_ubos |
}; |
|
static void bind_fs_ubos(struct st_context *st) |
{ |
struct gl_shader_program *prog = |
st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT]; |
|
if (!prog) |
return; |
|
st_bind_ubos(st, prog->_LinkedShaders[MESA_SHADER_FRAGMENT], PIPE_SHADER_FRAGMENT); |
} |
|
const struct st_tracked_state st_bind_fs_ubos = { |
"st_bind_fs_ubos", |
{ |
0, |
ST_NEW_FRAGMENT_PROGRAM | ST_NEW_UNIFORM_BUFFER, |
}, |
bind_fs_ubos |
}; |
|
static void bind_gs_ubos(struct st_context *st) |
{ |
struct gl_shader_program *prog = |
st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]; |
|
if (!prog) |
return; |
|
st_bind_ubos(st, prog->_LinkedShaders[MESA_SHADER_GEOMETRY], PIPE_SHADER_GEOMETRY); |
} |
|
const struct st_tracked_state st_bind_gs_ubos = { |
"st_bind_gs_ubos", |
{ |
0, |
ST_NEW_GEOMETRY_PROGRAM | ST_NEW_UNIFORM_BUFFER, |
}, |
bind_gs_ubos |
}; |