+++ /dev/null
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-/**
- * Execute fragment shader using runtime SSE code generation.
- */
-
-#include "sp_context.h"
-#include "sp_state.h"
-#include "sp_fs.h"
-#include "sp_quad.h"
-
-#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-#include "util/u_memory.h"
-#include "tgsi/tgsi_exec.h"
-#include "tgsi/tgsi_sse2.h"
-
-
-#if defined(PIPE_ARCH_X86)
-
-#include "rtasm/rtasm_x86sse.h"
-
-
-
-/**
- * Subclass of sp_fragment_shader_variant
- */
-struct sp_sse_fragment_shader
-{
- struct sp_fragment_shader_variant base;
- struct x86_function sse2_program;
- tgsi_sse2_fs_function func;
- float immediates[TGSI_EXEC_NUM_IMMEDIATES][4];
-};
-
-
-/** cast wrapper */
-static INLINE struct sp_sse_fragment_shader *
-sp_sse_fragment_shader(const struct sp_fragment_shader_variant *base)
-{
- return (struct sp_sse_fragment_shader *) base;
-}
-
-
-static void
-fs_sse_prepare( const struct sp_fragment_shader_variant *base,
- struct tgsi_exec_machine *machine,
- struct tgsi_sampler **samplers )
-{
- machine->Samplers = samplers;
-}
-
-
-
-/**
- * Compute quad X,Y,Z,W for the four fragments in a quad.
- *
- * This should really be part of the compiled shader.
- */
-static void
-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;
- }
-}
-
-
-/* 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
-fs_sse_run( const struct sp_fragment_shader_variant *base,
- struct tgsi_exec_machine *machine,
- struct quad_header *quad )
-{
- struct sp_sse_fragment_shader *shader = sp_sse_fragment_shader(base);
-
- /* Compute X, Y, Z, W vals for this quad -- place in temp[0] for now */
- setup_pos_vector(quad->posCoef,
- (float)quad->input.x0, (float)quad->input.y0,
- machine->Temps);
-
- /* init kill mask */
- tgsi_set_kill_mask(machine, 0x0);
- tgsi_set_exec_mask(machine, 1, 1, 1, 1);
-
- shader->func( machine,
- (const float (*)[4])machine->Consts[0],
- (const float (*)[4])shader->immediates,
- machine->InterpCoefs
- /*, &machine->QuadPos*/
- );
-
- quad->inout.mask &= ~(machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0]);
- if (quad->inout.mask == 0)
- return FALSE;
-
- /* store outputs */
- {
- const ubyte *sem_name = base->info.output_semantic_name;
- const ubyte *sem_index = base->info.output_semantic_index;
- const uint n = base->info.num_outputs;
- uint i;
- for (i = 0; i < n; i++) {
- switch (sem_name[i]) {
- case TGSI_SEMANTIC_COLOR:
- {
- uint cbuf = sem_index[i];
-
- assert(sizeof(quad->output.color[cbuf]) ==
- sizeof(machine->Outputs[i]));
-
- /* copy float[4][4] result */
- memcpy(quad->output.color[cbuf],
- &machine->Outputs[i],
- sizeof(quad->output.color[0]) );
- }
- break;
- case TGSI_SEMANTIC_POSITION:
- {
- uint j;
- for (j = 0; j < 4; j++)
- quad->output.depth[j] = machine->Outputs[i].xyzw[2].f[j];
- }
- break;
- case TGSI_SEMANTIC_STENCIL:
- {
- uint j;
- for (j = 0; j < 4; j++)
- quad->output.stencil[j] = machine->Outputs[i].xyzw[1].f[j];
- }
- break;
- }
- }
- }
-
- return TRUE;
-}
-
-
-static void
-fs_sse_delete( struct sp_fragment_shader_variant *base )
-{
- struct sp_sse_fragment_shader *shader = sp_sse_fragment_shader(base);
-
- x86_release_func( &shader->sse2_program );
- FREE(shader);
-}
-
-
-struct sp_fragment_shader_variant *
-softpipe_create_fs_variant_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( templ->tokens, &shader->sse2_program,
- shader->immediates, FALSE )) {
- FREE(shader);
- return NULL;
- }
-
- shader->func = (tgsi_sse2_fs_function) x86_get_func( &shader->sse2_program );
- if (!shader->func) {
- x86_release_func( &shader->sse2_program );
- FREE(shader);
- return NULL;
- }
-
- shader->base.prepare = fs_sse_prepare;
- shader->base.run = fs_sse_run;
- shader->base.delete = fs_sse_delete;
-
- return &shader->base;
-}
-
-
-#else
-
-/* Maybe put this variant in the header file.
- */
-struct sp_fragment_shader_variant *
-softpipe_create_fs_variant_sse(struct softpipe_context *softpipe,
- const struct pipe_shader_state *templ)
-{
- return NULL;
-}
-
-#endif
projects / mesa.git / blobdiff