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/*
* Copyright (c) 2012-2013 Etnaviv Project
*
* 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 OR COPYRIGHT HOLDERS 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.
*/
/* Raw shader state handling (for testing and debugging).
*/
#include "etna_rawshader.h"
#include "etna_pipe.h"
#include "etna_compiler.h"
#include "etna_debug.h"
#include "util/u_memory.h"
#include "util/u_math.h"
#include <etnaviv/state_3d.xml.h>
#define SET_STATE(addr, value) cs->addr = (value)
#define SET_STATE_FIXP(addr, value) cs->addr = (value)
#define SET_STATE_F32(addr, value) cs->addr = etna_f32_to_u32(value)
void *etna_create_shader_state(struct pipe_context *pipe, const struct etna_shader_program *rs)
{
struct compiled_shader_state *cs = CALLOC_STRUCT(compiled_shader_state);
/* set last_varying_2x flag if the last varying has 1 or 2 components */
bool last_varying_2x = false;
if(rs->num_varyings>0 && rs->varyings[rs->num_varyings-1].num_components <= 2)
last_varying_2x = true;
SET_STATE(RA_CONTROL, VIVS_RA_CONTROL_UNK0 |
(last_varying_2x ? VIVS_RA_CONTROL_LAST_VARYING_2X : 0));
SET_STATE(PA_ATTRIBUTE_ELEMENT_COUNT, VIVS_PA_ATTRIBUTE_ELEMENT_COUNT_COUNT(rs->num_varyings));
for(int idx=0; idx<rs->num_varyings; ++idx)
SET_STATE(PA_SHADER_ATTRIBUTES[idx], rs->varyings[idx].pa_attributes);
SET_STATE(VS_END_PC, rs->vs_code_size / 4);
SET_STATE(VS_OUTPUT_COUNT, rs->num_varyings + 1); /* position + varyings */
SET_STATE(VS_INPUT_COUNT, VIVS_VS_INPUT_COUNT_UNK8(1)); /// XXX what is this
SET_STATE(VS_TEMP_REGISTER_CONTROL,
VIVS_VS_TEMP_REGISTER_CONTROL_NUM_TEMPS(rs->vs_num_temps));
/* vs outputs (varyings) */
uint32_t vs_output[16] = {0};
int varid = 0;
vs_output[varid++] = rs->vs_pos_out_reg;
for(int idx=0; idx<rs->num_varyings; ++idx)
vs_output[varid++] = rs->varyings[idx].vs_reg;
vs_output[varid++] = rs->vs_pointsize_out_reg; /* pointsize is last */
for(int idx=0; idx<4; ++idx)
{
SET_STATE(VS_OUTPUT[idx], vs_output[idx*4] | (vs_output[idx*4+1] << 8) |
(vs_output[idx*4+2] << 16) | (vs_output[idx*4+3] << 24));
}
/* vs inputs (attributes) */
uint32_t vs_input[4] = {0};
for(int idx=0; idx<rs->num_inputs; ++idx)
vs_input[idx/4] |= rs->inputs[idx].vs_reg << ((idx%4)*8);
for(int idx=0; idx<4; ++idx)
SET_STATE(VS_INPUT[idx], vs_input[idx]);
SET_STATE(VS_LOAD_BALANCING, rs->vs_load_balancing);
SET_STATE(VS_START_PC, 0);
SET_STATE(PS_END_PC, rs->ps_code_size / 4);
SET_STATE(PS_OUTPUT_REG, rs->ps_color_out_reg);
SET_STATE(PS_INPUT_COUNT, VIVS_PS_INPUT_COUNT_COUNT(rs->num_varyings + 1) |
VIVS_PS_INPUT_COUNT_UNK8(31));
SET_STATE(PS_TEMP_REGISTER_CONTROL,
VIVS_PS_TEMP_REGISTER_CONTROL_NUM_TEMPS(rs->ps_num_temps));
SET_STATE(PS_CONTROL, VIVS_PS_CONTROL_UNK1);
SET_STATE(PS_START_PC, 0);
uint32_t total_components = 0;
uint32_t num_components = 0;
uint32_t component_use[2] = {0};
for(int idx=0; idx<rs->num_varyings; ++idx)
{
num_components |= rs->varyings[idx].num_components << ((idx%8)*4);
for(int comp=0; comp<rs->varyings[idx].num_components; ++comp)
{
int compid = total_components + comp;
unsigned use = VARYING_COMPONENT_USE_USED;
if(rs->varyings[idx].special == ETNA_VARYING_POINTCOORD)
{
if(comp == 0)
use = VARYING_COMPONENT_USE_POINTCOORD_X;
else if(comp == 1)
use = VARYING_COMPONENT_USE_POINTCOORD_Y;
}
component_use[compid/16] |= use << ((compid%16)*2);
}
total_components += rs->varyings[idx].num_components;
}
SET_STATE(GL_VARYING_TOTAL_COMPONENTS, VIVS_GL_VARYING_TOTAL_COMPONENTS_NUM(align(total_components, 2)));
SET_STATE(GL_VARYING_NUM_COMPONENTS, num_components);
SET_STATE(GL_VARYING_COMPONENT_USE[0], component_use[0]);
SET_STATE(GL_VARYING_COMPONENT_USE[1], component_use[1]);
cs->vs_inst_mem_size = rs->vs_code_size;
cs->vs_uniforms_size = rs->vs_uniforms_size;
cs->ps_inst_mem_size = rs->ps_code_size;
cs->ps_uniforms_size = rs->ps_uniforms_size;
cs->VS_INST_MEM = mem_dup(rs->vs_code, rs->vs_code_size * 4);
cs->PS_INST_MEM = mem_dup(rs->ps_code, rs->ps_code_size * 4);
memcpy(cs->VS_UNIFORMS, rs->vs_uniforms, rs->vs_uniforms_size*4);
memcpy(cs->PS_UNIFORMS, rs->ps_uniforms, rs->ps_uniforms_size*4);
return cs;
}
void etna_bind_shader_state(struct pipe_context *pipe, void *sh)
{
struct etna_pipe_context *priv = etna_pipe_context(pipe);
priv->dirty_bits |= ETNA_STATE_SHADER | ETNA_STATE_PS_UNIFORMS | ETNA_STATE_VS_UNIFORMS;
priv->shader_state = *((struct compiled_shader_state*)sh);
}
void etna_delete_shader_state(struct pipe_context *pipe, void *sh_)
{
struct compiled_shader_state *sh = (struct compiled_shader_state*)sh_;
FREE(sh->VS_INST_MEM);
FREE(sh->PS_INST_MEM);
FREE(sh);
}
void etna_set_uniforms(struct pipe_context *pipe, unsigned type, unsigned offset, unsigned count, const uint32_t *values)
{
struct etna_pipe_context *priv = etna_pipe_context(pipe);
assert((offset + count) <= ETNA_MAX_UNIFORMS*4);
switch(type)
{
case PIPE_SHADER_VERTEX:
memcpy(&priv->shader_state.VS_UNIFORMS[offset], values, count*4);
priv->dirty_bits |= ETNA_STATE_VS_UNIFORMS;
break;
case PIPE_SHADER_FRAGMENT:
memcpy(&priv->shader_state.PS_UNIFORMS[offset], values, count*4);
priv->dirty_bits |= ETNA_STATE_PS_UNIFORMS;
break;
default: printf("Unhandled shader type %i\n", type);
}
}
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