diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_fs_sse.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_fs_sse.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_fs_sse.c b/src/gallium/drivers/softpipe/sp_fs_sse.c new file mode 100644 index 00000000000..28c5d8c556d --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_fs_sse.c @@ -0,0 +1,192 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_fs.h" +#include "sp_headers.h" + + +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "pipe/p_util.h" +#include "pipe/p_inlines.h" +#include "tgsi/exec/tgsi_exec.h" +#include "tgsi/exec/tgsi_sse2.h" + + +#if defined(__i386__) || defined(__386__) + +#include "x86/rtasm/x86sse.h" + +/* Surely this should be defined somewhere in a tgsi header: + */ +typedef void (XSTDCALL *codegen_function)( + const struct tgsi_exec_vector *input, + struct tgsi_exec_vector *output, + float (*constant)[4], + struct tgsi_exec_vector *temporary, + const struct tgsi_interp_coef *coef + //, const struct tgsi_exec_vector *quadPos + ); + + +struct sp_sse_fragment_shader { + struct sp_fragment_shader base; + struct x86_function sse2_program; + codegen_function func; +}; + + +/** + * Compute quad X,Y,Z,W for the four fragments in a quad. + * + * This should really be part of the compiled shader. + */ +void +sp_setup_pos_vector(const struct tgsi_interp_coef *coef, + float x, float y, + struct tgsi_exec_vector *quadpos) +{ + uint chan; + /* do X */ + quadpos->xyzw[0].f[0] = x; + quadpos->xyzw[0].f[1] = x + 1; + quadpos->xyzw[0].f[2] = x; + quadpos->xyzw[0].f[3] = x + 1; + + /* do Y */ + quadpos->xyzw[1].f[0] = y; + quadpos->xyzw[1].f[1] = y; + quadpos->xyzw[1].f[2] = y + 1; + quadpos->xyzw[1].f[3] = y + 1; + + /* do Z and W for all fragments in the quad */ + for (chan = 2; chan < 4; chan++) { + const float dadx = coef->dadx[chan]; + const float dady = coef->dady[chan]; + const float a0 = coef->a0[chan] + dadx * x + dady * y; + quadpos->xyzw[chan].f[0] = a0; + quadpos->xyzw[chan].f[1] = a0 + dadx; + quadpos->xyzw[chan].f[2] = a0 + dady; + quadpos->xyzw[chan].f[3] = a0 + dadx + dady; + } +} + + +static void +sse_prepare( struct sp_fragment_shader *base, + struct tgsi_exec_machine *machine, + struct tgsi_sampler *samplers ) +{ +} + + +/* TODO: codegenerate the whole run function, skip this wrapper. + * TODO: break dependency on tgsi_exec_machine struct + * TODO: push Position calculation into the generated shader + * TODO: process >1 quad at a time + */ +static unsigned +sse_run( struct sp_fragment_shader *base, + struct tgsi_exec_machine *machine, + struct quad_header *quad ) +{ + struct sp_sse_fragment_shader *shader = (struct sp_sse_fragment_shader *) base; + + /* Compute X, Y, Z, W vals for this quad -- place in temp[0] for now */ + sp_setup_pos_vector(quad->posCoef, + (float)quad->x0, (float)quad->y0, + machine->Temps); + + shader->func( machine->Inputs, + machine->Outputs, + machine->Consts, + machine->Temps, + machine->InterpCoefs + // , &machine->QuadPos + ); + + return ~(machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0]); +} + + +static void +sse_delete( struct sp_fragment_shader *base ) +{ + struct sp_sse_fragment_shader *shader = (struct sp_sse_fragment_shader *) base; + + x86_release_func( &shader->sse2_program ); + FREE(shader); +} + + +struct sp_fragment_shader * +softpipe_create_fs_sse(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + struct sp_sse_fragment_shader *shader; + + if (!softpipe->use_sse) + return NULL; + + shader = CALLOC_STRUCT(sp_sse_fragment_shader); + if (!shader) + return NULL; + + x86_init_func( &shader->sse2_program ); + + if (!tgsi_emit_sse2_fs( templ->tokens, &shader->sse2_program )) { + FREE(shader); + return NULL; + } + + shader->func = (codegen_function) x86_get_func( &shader->sse2_program ); + assert(shader->func); + + shader->base.shader = *templ; + shader->base.prepare = sse_prepare; + shader->base.run = sse_run; + shader->base.delete = sse_delete; + + return &shader->base; +} + + +#else + +/* Maybe put this varient in the header file. + */ +struct sp_fragment_shader * +softpipe_create_fs_sse(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + return NULL; +} + +#endif |