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/* clang --emit-llvm llvm_entry.c |llvm-as |opt -std-compile-opts |llvm2cpp -for=Shader -gen-module -funcname=createBaseShader */
/**************************************************************************
*
* 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:
* Zack Rusin zack@tungstengraphics.com
*/
/* clang --emit-llvm llvm_builtins.c |llvm-as |opt -std-compile-opts |llvm-dis */
typedef __attribute__(( ocu_vector_type(4) )) float float4;
void from_array(float4 (*res)[16], float (*ainputs)[16][4],
int count, int num_attribs)
{
for (int i = 0; i < count; ++i) {
for (int j = 0; j < num_attribs; ++j) {
float4 vec;
vec.x = ainputs[i][j][0];
vec.y = ainputs[i][j][1];
vec.z = ainputs[i][j][2];
vec.w = ainputs[i][j][3];
res[i][j] = vec;
}
}
}
void from_consts(float4 *res, float (*ainputs)[4],
int count)
{
for (int i = 0; i < count; ++i) {
float4 vec;
vec.x = ainputs[i][0];
vec.y = ainputs[i][1];
vec.z = ainputs[i][2];
vec.w = ainputs[i][3];
res[i] = vec;
}
}
void to_array(float (*dests)[4], float4 *in, int num_attribs)
{
for (int i = 0; i < num_attribs; ++i) {
float *rd = dests[i];
float4 ri = in[i];
rd[0] = ri.x;
rd[1] = ri.y;
rd[2] = ri.z;
rd[3] = ri.w;
}
}
struct ShaderInput
{
float4 *dests;
float4 *inputs;
float4 *temps;
float4 *consts;
int kilmask;
};
extern void execute_shader(struct ShaderInput *input);
void run_vertex_shader(float4 (*inputs)[16],
float4 (*results)[16],
float (*aconsts)[4],
int num_vertices,
int num_inputs,
int num_attribs,
int num_consts)
{
float4 consts[32];
float4 temps[128];//MAX_PROGRAM_TEMPS
struct ShaderInput args;
/*printf("XXX LLVM run_vertex_shader vertices = %d, inputs = %d, attribs = %d, consts = %d\n",
num_vertices, num_inputs, num_attribs, num_consts);*/
from_consts(consts, aconsts, num_consts);
args.consts = consts;
args.temps = temps;
for (int i = 0; i < num_vertices; ++i) {
args.dests = results[i];
args.inputs = inputs[i];
execute_shader(&args);
}
}
struct pipe_sampler_state;
struct softpipe_tile_cache;
#define NUM_CHANNELS 4 /* R,G,B,A */
#define QUAD_SIZE 4 /* 4 pixel/quad */
struct tgsi_sampler
{
const struct pipe_sampler_state *state;
/** Get samples for four fragments in a quad */
void (*get_samples)(struct tgsi_sampler *sampler,
const float s[QUAD_SIZE],
const float t[QUAD_SIZE],
const float p[QUAD_SIZE],
float lodbias,
float rgba[NUM_CHANNELS][QUAD_SIZE]);
void *pipe; /*XXX temporary*/
struct softpipe_tile_cache *cache;
};
int run_fragment_shader(float x, float y,
float4 (*results)[16],
float4 (*inputs)[16],
int num_inputs,
float (*aconsts)[4],
int num_consts,
struct tgsi_sampler *samplers)
{
float4 consts[32];
float4 temps[128];//MAX_PROGRAM_TEMPS
struct ShaderInput args;
int mask = 0;
args.kilmask = 0;
from_consts(consts, aconsts, num_consts);
args.consts = consts;
args.temps = temps;
//printf("AAAAAAAAAAAAAAAAAAAAAAA FRAGMENT SHADER %f %f\n", x, y);
for (int i = 0; i < 4; ++i) {
args.inputs = inputs[i];
args.dests = results[i];
mask = args.kilmask;
args.kilmask = 0;
execute_shader(&args);
args.kilmask = mask | (args.kilmask << i);
}
return ~args.kilmask;
}
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