--- /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.
+ *
+ **************************************************************************/
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ * Brian Paul
+ */
+
+
+#include "shader/prog_parameter.h"
+#include "shader/prog_print.h"
+#include "tnl/t_vp_build.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_winsys.h"
+#include "pipe/tgsi/mesa/mesa_to_tgsi.h"
+#include "pipe/tgsi/exec/tgsi_core.h"
+
+#include "st_context.h"
+#include "st_cache.h"
+#include "st_atom.h"
+#include "st_program.h"
+
+
+#define TGSI_DEBUG 1
+
+
+/**
+ * Translate a Mesa vertex shader into a TGSI shader.
+ * \param outputMapping to map vertex program output registers to TGSI
+ * output slots
+ * \param tokensOut destination for TGSI tokens
+ * \return pointer to cached pipe_shader object.
+ */
+const struct cso_vertex_shader *
+st_translate_vertex_program(struct st_context *st,
+ struct st_vertex_program *stvp,
+ const GLuint outputMapping[],
+ struct tgsi_token *tokensOut,
+ GLuint maxTokens)
+{
+ GLuint defaultOutputMapping[VERT_RESULT_MAX];
+ struct pipe_shader_state vs;
+ const struct cso_vertex_shader *cso;
+ GLuint attr, i;
+
+ memset(&vs, 0, sizeof(vs));
+
+ /*
+ * Determine number of inputs, the mappings between VERT_ATTRIB_x
+ * and TGSI generic input indexes, plus input attrib semantic info.
+ */
+ for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
+ if (stvp->Base.Base.InputsRead & (1 << attr)) {
+ const GLuint slot = vs.num_inputs;
+
+ vs.num_inputs++;
+
+ stvp->input_to_index[attr] = slot;
+ stvp->index_to_input[slot] = attr;
+
+ switch (attr) {
+ case VERT_ATTRIB_POS:
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ vs.input_semantic_index[slot] = 0;
+ break;
+ case VERT_ATTRIB_WEIGHT:
+ /* fall-through */
+ case VERT_ATTRIB_NORMAL:
+ /* just label as a generic */
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ vs.input_semantic_index[slot] = 0;
+ break;
+ case VERT_ATTRIB_COLOR0:
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ vs.input_semantic_index[slot] = 0;
+ break;
+ case VERT_ATTRIB_COLOR1:
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ vs.input_semantic_index[slot] = 1;
+ break;
+ case VERT_ATTRIB_FOG:
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ vs.input_semantic_index[slot] = 0;
+ break;
+ case VERT_ATTRIB_TEX0:
+ case VERT_ATTRIB_TEX1:
+ case VERT_ATTRIB_TEX2:
+ case VERT_ATTRIB_TEX3:
+ case VERT_ATTRIB_TEX4:
+ case VERT_ATTRIB_TEX5:
+ case VERT_ATTRIB_TEX6:
+ case VERT_ATTRIB_TEX7:
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ vs.input_semantic_index[slot] = attr - VERT_ATTRIB_TEX0;
+ break;
+ case VERT_ATTRIB_GENERIC0:
+ case VERT_ATTRIB_GENERIC1:
+ case VERT_ATTRIB_GENERIC2:
+ case VERT_ATTRIB_GENERIC3:
+ case VERT_ATTRIB_GENERIC4:
+ case VERT_ATTRIB_GENERIC5:
+ case VERT_ATTRIB_GENERIC6:
+ case VERT_ATTRIB_GENERIC7:
+ assert(attr < VERT_ATTRIB_MAX);
+ vs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ vs.input_semantic_index[slot] = attr - VERT_ATTRIB_GENERIC0;
+ break;
+ default:
+ assert(0);
+ }
+ }
+ }
+
+ /* initialize output semantics to defaults */
+ for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {
+ vs.output_semantic_name[i] = TGSI_SEMANTIC_GENERIC;
+ vs.output_semantic_index[i] = 0;
+ }
+
+ /*
+ * Determine number of outputs, the (default) output register
+ * mapping and the semantic information for each output.
+ */
+ for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
+ if (stvp->Base.Base.OutputsWritten & (1 << attr)) {
+ GLuint slot;
+
+ if (outputMapping) {
+ slot = outputMapping[attr];
+ assert(slot != ~0);
+ }
+ else {
+ slot = vs.num_outputs;
+ vs.num_outputs++;
+ defaultOutputMapping[attr] = slot;
+ }
+
+ /*
+ printf("Output %u -> slot %u\n", attr, slot);
+ */
+
+ switch (attr) {
+ case VERT_RESULT_HPOS:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ vs.output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_COL0:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ vs.output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_COL1:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ vs.output_semantic_index[slot] = 1;
+ break;
+ case VERT_RESULT_BFC0:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ vs.output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_BFC1:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ vs.output_semantic_index[slot] = 1;
+ break;
+ case VERT_RESULT_FOGC:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ vs.output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_PSIZ:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
+ vs.output_semantic_index[slot] = 0;
+ break;
+ case VERT_RESULT_EDGE:
+ assert(0);
+ break;
+ case VERT_RESULT_TEX0:
+ case VERT_RESULT_TEX1:
+ case VERT_RESULT_TEX2:
+ case VERT_RESULT_TEX3:
+ case VERT_RESULT_TEX4:
+ case VERT_RESULT_TEX5:
+ case VERT_RESULT_TEX6:
+ case VERT_RESULT_TEX7:
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ vs.output_semantic_index[slot] = attr - VERT_RESULT_TEX0;
+ break;
+ case VERT_RESULT_VAR0:
+ /* fall-through */
+ default:
+ assert(attr - VERT_RESULT_VAR0 < MAX_VARYING);
+ vs.output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ vs.output_semantic_index[slot] = attr - VERT_RESULT_VAR0;
+ }
+ }
+ }
+
+
+ if (outputMapping) {
+ /* find max output slot referenced to compute vs.num_outputs */
+ GLuint maxSlot = 0;
+ for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
+ if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot)
+ maxSlot = outputMapping[attr];
+ }
+ vs.num_outputs = maxSlot + 1;
+ }
+ else {
+ outputMapping = defaultOutputMapping;
+ }
+
+ /* XXX: fix static allocation of tokens:
+ */
+ tgsi_mesa_compile_vp_program( &stvp->Base,
+ /* inputs */
+ vs.num_inputs,
+ stvp->input_to_index,
+ vs.input_semantic_name,
+ vs.input_semantic_index,
+ /* outputs */
+ vs.num_outputs,
+ outputMapping,
+ vs.output_semantic_name,
+ vs.output_semantic_index,
+ /* tokenized result */
+ tokensOut, maxTokens);
+
+ vs.tokens = tokensOut;
+ cso = st_cached_vs_state(st, &vs);
+ stvp->vs = cso;
+
+ if (TGSI_DEBUG)
+ tgsi_dump( tokensOut, 0 );
+
+#if defined(USE_X86_ASM) || defined(SLANG_X86)
+ if (stvp->sse2_program.csr == stvp->sse2_program.store)
+ tgsi_emit_sse2( tokensOut, &stvp->sse2_program );
+
+ if (!cso->state.executable)
+ ((struct cso_vertex_shader*)cso)->state.executable = (void *) x86_get_func( &stvp->sse2_program );
+#endif
+
+ return cso;
+}
+
+
+
+/**
+ * Translate a Mesa fragment shader into a TGSI shader.
+ * \param inputMapping to map fragment program input registers to TGSI
+ * input slots
+ * \param tokensOut destination for TGSI tokens
+ * \return pointer to cached pipe_shader object.
+ */
+const struct cso_fragment_shader *
+st_translate_fragment_program(struct st_context *st,
+ struct st_fragment_program *stfp,
+ const GLuint inputMapping[],
+ struct tgsi_token *tokensOut,
+ GLuint maxTokens)
+{
+ GLuint outputMapping[FRAG_RESULT_MAX];
+ GLuint defaultInputMapping[FRAG_ATTRIB_MAX];
+ struct pipe_shader_state fs;
+ const struct cso_fragment_shader *cso;
+ GLuint interpMode[16]; /* XXX size? */
+ GLuint attr;
+ GLbitfield inputsRead = stfp->Base.Base.InputsRead;
+
+ /* Check if all fragment programs need the fragment position (in order
+ * to do perspective-corrected interpolation).
+ */
+ /* XXX temporary! */
+ if (st->pipe->get_param(st->pipe, PIPE_PARAM_FS_NEEDS_POS))
+ inputsRead |= FRAG_BIT_WPOS;
+
+ memset(&fs, 0, sizeof(fs));
+
+ /*
+ * Convert Mesa program inputs to TGSI input register semantics.
+ */
+ for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
+ if (inputsRead & (1 << attr)) {
+ const GLuint slot = fs.num_inputs;
+
+ fs.num_inputs++;
+
+ defaultInputMapping[attr] = slot;
+
+ switch (attr) {
+ case FRAG_ATTRIB_WPOS:
+ fs.input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ fs.input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
+ break;
+ case FRAG_ATTRIB_COL0:
+ fs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ fs.input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ break;
+ case FRAG_ATTRIB_COL1:
+ fs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ fs.input_semantic_index[slot] = 1;
+ interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
+ break;
+ case FRAG_ATTRIB_FOGC:
+ fs.input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ fs.input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ break;
+ case FRAG_ATTRIB_TEX0:
+ case FRAG_ATTRIB_TEX1:
+ case FRAG_ATTRIB_TEX2:
+ case FRAG_ATTRIB_TEX3:
+ case FRAG_ATTRIB_TEX4:
+ case FRAG_ATTRIB_TEX5:
+ case FRAG_ATTRIB_TEX6:
+ case FRAG_ATTRIB_TEX7:
+ fs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ fs.input_semantic_index[slot] = attr - FRAG_ATTRIB_TEX0;
+ interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ break;
+ case FRAG_ATTRIB_VAR0:
+ /* fall-through */
+ default:
+ fs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ fs.input_semantic_index[slot] = attr - FRAG_ATTRIB_VAR0;
+ interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ }
+ }
+ }
+
+ /*
+ * Semantics for outputs
+ */
+ for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {
+ if (stfp->Base.Base.OutputsWritten & (1 << attr)) {
+ switch (attr) {
+ case FRAG_RESULT_DEPR:
+ fs.output_semantic_name[fs.num_outputs] = TGSI_SEMANTIC_POSITION;
+ outputMapping[attr] = fs.num_outputs;
+ break;
+ case FRAG_RESULT_COLR:
+ fs.output_semantic_name[fs.num_outputs] = TGSI_SEMANTIC_COLOR;
+ outputMapping[attr] = fs.num_outputs;
+ break;
+ default:
+ assert(0);
+ }
+ fs.num_outputs++;
+ }
+ }
+
+ if (!inputMapping)
+ inputMapping = defaultInputMapping;
+
+ /* XXX: fix static allocation of tokens:
+ */
+ tgsi_mesa_compile_fp_program( &stfp->Base,
+ /* inputs */
+ fs.num_inputs,
+ inputMapping,
+ fs.input_semantic_name,
+ fs.input_semantic_index,
+ interpMode,
+ /* outputs */
+ outputMapping,
+ /* tokenized result */
+ tokensOut, maxTokens);
+
+
+ fs.tokens = tokensOut;
+
+ cso = st_cached_fs_state(st, &fs);
+ stfp->fs = cso;
+
+ if (TGSI_DEBUG)
+ tgsi_dump( tokensOut, 0/*TGSI_DUMP_VERBOSE*/ );
+
+#if defined(USE_X86_ASM) || defined(SLANG_X86)
+ if (stfp->sse2_program.csr == stfp->sse2_program.store)
+ tgsi_emit_sse2_fs( tokensOut, &stfp->sse2_program );
+
+ if (!cso->state.executable)
+ ((struct cso_fragment_shader*)cso)->state.executable = (void *) x86_get_func( &stfp->sse2_program );
+#endif
+
+ return cso;
+}
+
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