i915_resource_buffer.c \
i915_fpc_emit.c \
i915_fpc_translate.c \
+ i915_fpc_optimize.c \
i915_surface.c
include ../../Makefile.template
'i915_flush.c',
'i915_fpc_emit.c',
'i915_fpc_translate.c',
+ 'i915_fpc_optimize.c',
'i915_prim_emit.c',
'i915_prim_vbuf.c',
'i915_query.c',
#include "i915_context.h"
#include "i915_reg.h"
+#include "pipe/p_shader_tokens.h"
+#include "tgsi/tgsi_parse.h"
#define I915_PROGRAM_SIZE 192
i915_program_error(struct i915_fp_compile *p, const char *msg, ...);
+/*======================================================================
+ * i915_fpc_optimize.c
+ */
+
+
+struct i915_src_register
+{
+ unsigned File : 4; /* TGSI_FILE_ */
+ unsigned Indirect : 1; /* BOOL */
+ unsigned Dimension : 1; /* BOOL */
+ int Index : 16; /* SINT */
+ unsigned SwizzleX : 3; /* TGSI_SWIZZLE_ */
+ unsigned SwizzleY : 3; /* TGSI_SWIZZLE_ */
+ unsigned SwizzleZ : 3; /* TGSI_SWIZZLE_ */
+ unsigned SwizzleW : 3; /* TGSI_SWIZZLE_ */
+ unsigned Absolute : 1; /* BOOL */
+ unsigned Negate : 1; /* BOOL */
+};
+
+/* Additional swizzle supported in i915 */
+#define TGSI_SWIZZLE_ZERO 4
+#define TGSI_SWIZZLE_ONE 5
+
+struct i915_dst_register
+{
+ unsigned File : 4; /* TGSI_FILE_ */
+ unsigned WriteMask : 4; /* TGSI_WRITEMASK_ */
+ unsigned Indirect : 1; /* BOOL */
+ unsigned Dimension : 1; /* BOOL */
+ int Index : 16; /* SINT */
+ unsigned Padding : 6;
+};
+
+
+struct i915_full_dst_register
+{
+ struct i915_dst_register Register;
+/*
+ struct tgsi_src_register Indirect;
+ struct tgsi_dimension Dimension;
+ struct tgsi_src_register DimIndirect;
+*/
+};
+
+struct i915_full_src_register
+{
+ struct i915_src_register Register;
+/*
+ struct tgsi_src_register Indirect;
+ struct tgsi_dimension Dimension;
+ struct tgsi_src_register DimIndirect;
+*/
+};
+
+struct i915_full_instruction
+{
+ struct tgsi_instruction Instruction;
+/*
+ struct tgsi_instruction_predicate Predicate;
+ struct tgsi_instruction_label Label;
+*/
+ struct tgsi_instruction_texture Texture;
+ struct i915_full_dst_register Dst[1];
+ struct i915_full_src_register Src[3];
+};
+
+
+union i915_full_token
+{
+ struct tgsi_token Token;
+ struct tgsi_full_declaration FullDeclaration;
+ struct tgsi_full_immediate FullImmediate;
+ struct i915_full_instruction FullInstruction;
+ struct tgsi_full_property FullProperty;
+};
+
+struct i915_token_list
+{
+ union i915_full_token* Tokens;
+ unsigned NumTokens;
+};
+
+extern struct i915_token_list* i915_optimize(const struct tgsi_token *tokens);
+
+extern void i915_optimize_free(struct i915_token_list* tokens);
+
#endif
// XXX emit swizzle here for 0, 1, -1 and any combination thereof
// we can use swizzle + neg for that
- printf("const %f %f %f %f\n",c0,c1,c2,c3);
for (reg = 0; reg < I915_MAX_CONSTANT; reg++) {
if (ifs->constant_flags[reg] == 0xf &&
ifs->constants[reg][0] == c0 &&
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2011 The Chromium OS authors.
+ * 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 GOOGLE 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 "i915_reg.h"
+#include "i915_context.h"
+#include "i915_fpc.h"
+
+#include "pipe/p_shader_tokens.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_string.h"
+#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_dump.h"
+
+static boolean same_dst_reg(struct i915_full_dst_register* d1, struct i915_full_dst_register* d2)
+{
+ return (d1->Register.File == d2->Register.File &&
+ d1->Register.Indirect == d2->Register.Indirect &&
+ d1->Register.Dimension == d2->Register.Dimension &&
+ d1->Register.Index == d2->Register.Index);
+}
+
+static boolean same_src_reg(struct i915_full_src_register* d1, struct i915_full_src_register* d2)
+{
+ return (d1->Register.File == d2->Register.File &&
+ d1->Register.Indirect == d2->Register.Indirect &&
+ d1->Register.Dimension == d2->Register.Dimension &&
+ d1->Register.Index == d2->Register.Index &&
+ d1->Register.Absolute == d2->Register.Absolute &&
+ d1->Register.Negate == d2->Register.Negate);
+}
+
+
+/*
+ * Optimize away things like:
+ * MUL OUT[0].xyz, TEMP[1], TEMP[2]
+ * MOV OUT[0].w, TEMP[2]
+ * into:
+ * MUL OUT[0].xyzw, TEMP[1].xyz1, TEMP[2]
+ * This is useful for optimizing texenv.
+ */
+static void i915_fpc_optimize_mov_after_mul(union i915_full_token* current, union i915_full_token* next)
+{
+ if ( current->Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION &&
+ next->Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION &&
+ current->FullInstruction.Instruction.Opcode == TGSI_OPCODE_MUL &&
+ next->FullInstruction.Instruction.Opcode == TGSI_OPCODE_MOV &&
+ current->FullInstruction.Dst[0].Register.WriteMask == TGSI_WRITEMASK_XYZ &&
+ next->FullInstruction.Dst[0].Register.WriteMask == TGSI_WRITEMASK_W &&
+ same_dst_reg(&next->FullInstruction.Dst[0], &next->FullInstruction.Dst[0]) &&
+ same_src_reg(&next->FullInstruction.Src[0], ¤t->FullInstruction.Src[1]) )
+ {
+ next->FullInstruction.Instruction.Opcode = TGSI_OPCODE_NOP;
+ current->FullInstruction.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZW;
+ current->FullInstruction.Src[0].Register.SwizzleW = TGSI_SWIZZLE_ONE;
+ return;
+ }
+
+ if ( current->Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION &&
+ next->Token.Type == TGSI_TOKEN_TYPE_INSTRUCTION &&
+ current->FullInstruction.Instruction.Opcode == TGSI_OPCODE_MUL &&
+ next->FullInstruction.Instruction.Opcode == TGSI_OPCODE_MOV &&
+ current->FullInstruction.Dst[0].Register.WriteMask == TGSI_WRITEMASK_XYZ &&
+ next->FullInstruction.Dst[0].Register.WriteMask == TGSI_WRITEMASK_W &&
+ same_dst_reg(&next->FullInstruction.Dst[0], &next->FullInstruction.Dst[0]) &&
+ same_src_reg(&next->FullInstruction.Src[0], ¤t->FullInstruction.Src[0]) )
+ {
+ next->FullInstruction.Instruction.Opcode = TGSI_OPCODE_NOP;
+ current->FullInstruction.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZW;
+ current->FullInstruction.Src[1].Register.SwizzleW = TGSI_SWIZZLE_ONE;
+ return;
+ }
+}
+
+static void copy_src_reg(struct i915_src_register* o, const struct tgsi_src_register* i)
+{
+ o->File = i->File;
+ o->Indirect = i->Indirect;
+ o->Dimension = i->Dimension;
+ o->Index = i->Index;
+ o->SwizzleX = i->SwizzleX;
+ o->SwizzleY = i->SwizzleY;
+ o->SwizzleZ = i->SwizzleZ;
+ o->SwizzleW = i->SwizzleW;
+ o->Absolute = i->Absolute;
+ o->Negate = i->Negate;
+}
+
+static void copy_dst_reg(struct i915_dst_register* o, const struct tgsi_dst_register* i)
+{
+ o->File = i->File;
+ o->WriteMask = i->WriteMask;
+ o->Indirect = i->Indirect;
+ o->Dimension = i->Dimension;
+ o->Index = i->Index;
+}
+
+static void copy_instruction(struct i915_full_instruction* o, const struct tgsi_full_instruction* i)
+{
+ memcpy(&o->Instruction, &i->Instruction, sizeof(o->Instruction));
+ memcpy(&o->Texture, &i->Texture, sizeof(o->Texture));
+
+ copy_dst_reg(&o->Dst[0].Register, &i->Dst[0].Register);
+
+ copy_src_reg(&o->Src[0].Register, &i->Src[0].Register);
+ copy_src_reg(&o->Src[1].Register, &i->Src[1].Register);
+ copy_src_reg(&o->Src[2].Register, &i->Src[2].Register);
+}
+
+static void copy_token(union i915_full_token* o, union tgsi_full_token* i)
+{
+ if (i->Token.Type != TGSI_TOKEN_TYPE_INSTRUCTION)
+ memcpy(o, i, sizeof(*o));
+ else
+ copy_instruction(&o->FullInstruction, &i->FullInstruction);
+
+}
+
+struct i915_token_list* i915_optimize(const struct tgsi_token *tokens)
+{
+ struct i915_token_list *out_tokens = MALLOC(sizeof(struct i915_token_list));
+ out_tokens->NumTokens = 0;
+ struct tgsi_parse_context parse;
+ int i = 0;
+
+ /* Count the tokens */
+ tgsi_parse_init( &parse, tokens );
+ while( !tgsi_parse_end_of_tokens( &parse ) ) {
+ tgsi_parse_token( &parse );
+ out_tokens->NumTokens++;
+ }
+ tgsi_parse_free (&parse);
+
+ /* Allocate our tokens */
+ out_tokens->Tokens = MALLOC(sizeof(union i915_full_token) * out_tokens->NumTokens);
+
+ tgsi_parse_init( &parse, tokens );
+ while( !tgsi_parse_end_of_tokens( &parse ) ) {
+ tgsi_parse_token( &parse );
+ copy_token(&out_tokens->Tokens[i] , &parse.FullToken);
+
+ if (i > 0)
+ i915_fpc_optimize_mov_after_mul(&out_tokens->Tokens[i-1], &out_tokens->Tokens[i]);
+
+ i++;
+ }
+ tgsi_parse_free (&parse);
+
+ return out_tokens;
+}
+
+void i915_optimize_free(struct i915_token_list* tokens)
+{
+ free(tokens->Tokens);
+ free(tokens);
+}
+
+
*/
static uint
src_vector(struct i915_fp_compile *p,
- const struct tgsi_full_src_register *source,
+ const struct i915_full_src_register *source,
struct i915_fragment_shader* fs)
{
uint index = source->Register.Index;
*/
static uint
get_result_vector(struct i915_fp_compile *p,
- const struct tgsi_full_dst_register *dest)
+ const struct i915_full_dst_register *dest)
{
switch (dest->Register.File) {
case TGSI_FILE_OUTPUT:
* Compute flags for saturation and writemask.
*/
static uint
-get_result_flags(const struct tgsi_full_instruction *inst)
+get_result_flags(const struct i915_full_instruction *inst)
{
const uint writeMask
= inst->Dst[0].Register.WriteMask;
*/
static void
emit_tex(struct i915_fp_compile *p,
- const struct tgsi_full_instruction *inst,
+ const struct i915_full_instruction *inst,
uint opcode,
struct i915_fragment_shader* fs)
{
*/
static void
emit_simple_arith(struct i915_fp_compile *p,
- const struct tgsi_full_instruction *inst,
+ const struct i915_full_instruction *inst,
uint opcode, uint numArgs,
struct i915_fragment_shader* fs)
{
/** As above, but swap the first two src regs */
static void
emit_simple_arith_swap2(struct i915_fp_compile *p,
- const struct tgsi_full_instruction *inst,
+ const struct i915_full_instruction *inst,
uint opcode, uint numArgs,
struct i915_fragment_shader* fs)
{
- struct tgsi_full_instruction inst2;
+ struct i915_full_instruction inst2;
assert(numArgs == 2);
*/
static void
i915_translate_instruction(struct i915_fp_compile *p,
- const struct tgsi_full_instruction *inst,
+ const struct i915_full_instruction *inst,
struct i915_fragment_shader *fs)
{
uint writemask;
emit_simple_arith(p, inst, A0_MUL, 2, fs);
break;
+ case TGSI_OPCODE_NOP:
+ break;
+
case TGSI_OPCODE_POW:
src0 = src_vector(p, &inst->Src[0], fs);
src1 = src_vector(p, &inst->Src[1], fs);
}
-/**
- * Translate TGSI fragment shader into i915 hardware instructions.
- * \param p the translation state
- * \param tokens the TGSI token array
- */
-static void
-i915_translate_instructions(struct i915_fp_compile *p,
- const struct tgsi_token *tokens,
- struct i915_fragment_shader *fs)
+static void i915_translate_token(struct i915_fp_compile *p,
+ const union i915_full_token* token,
+ struct i915_fragment_shader *fs)
{
struct i915_fragment_shader *ifs = p->shader;
- struct tgsi_parse_context parse;
-
- tgsi_parse_init( &parse, tokens );
-
- while( !tgsi_parse_end_of_tokens( &parse ) ) {
-
- tgsi_parse_token( &parse );
+ switch( token->Token.Type ) {
+ case TGSI_TOKEN_TYPE_PROPERTY:
+ /*
+ * We only support one cbuf, but we still need to ignore the property
+ * correctly so we don't hit the assert at the end of the switch case.
+ */
+ assert(token->FullProperty.Property.PropertyName ==
+ TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS);
+ break;
- switch( parse.FullToken.Token.Type ) {
- case TGSI_TOKEN_TYPE_PROPERTY:
- /*
- * We only support one cbuf, but we still need to ignore the property
- * correctly so we don't hit the assert at the end of the switch case.
- */
- assert(parse.FullToken.FullProperty.Property.PropertyName ==
- TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS);
- break;
- case TGSI_TOKEN_TYPE_DECLARATION:
- if (parse.FullToken.FullDeclaration.Declaration.File
- == TGSI_FILE_CONSTANT) {
- uint i;
- for (i = parse.FullToken.FullDeclaration.Range.First;
- i <= parse.FullToken.FullDeclaration.Range.Last;
- i++) {
- assert(ifs->constant_flags[i] == 0x0);
- ifs->constant_flags[i] = I915_CONSTFLAG_USER;
- ifs->num_constants = MAX2(ifs->num_constants, i + 1);
- }
+ case TGSI_TOKEN_TYPE_DECLARATION:
+ if (token->FullDeclaration.Declaration.File
+ == TGSI_FILE_CONSTANT) {
+ uint i;
+ for (i = token->FullDeclaration.Range.First;
+ i <= token->FullDeclaration.Range.Last;
+ i++) {
+ assert(ifs->constant_flags[i] == 0x0);
+ ifs->constant_flags[i] = I915_CONSTFLAG_USER;
+ ifs->num_constants = MAX2(ifs->num_constants, i + 1);
}
- else if (parse.FullToken.FullDeclaration.Declaration.File
- == TGSI_FILE_TEMPORARY) {
- uint i;
- for (i = parse.FullToken.FullDeclaration.Range.First;
- i <= parse.FullToken.FullDeclaration.Range.Last;
- i++) {
- if (i >= I915_MAX_TEMPORARY)
- debug_printf("Too many temps (%d)\n",i);
- else
- /* XXX just use shader->info->file_mask[TGSI_FILE_TEMPORARY] */
- p->temp_flag |= (1 << i); /* mark temp as used */
- }
+ }
+ else if (token->FullDeclaration.Declaration.File
+ == TGSI_FILE_TEMPORARY) {
+ uint i;
+ for (i = token->FullDeclaration.Range.First;
+ i <= token->FullDeclaration.Range.Last;
+ i++) {
+ if (i >= I915_MAX_TEMPORARY)
+ debug_printf("Too many temps (%d)\n",i);
+ else
+ /* XXX just use shader->info->file_mask[TGSI_FILE_TEMPORARY] */
+ p->temp_flag |= (1 << i); /* mark temp as used */
}
- break;
+ }
+ break;
- case TGSI_TOKEN_TYPE_IMMEDIATE:
- {
- const struct tgsi_full_immediate *imm
- = &parse.FullToken.FullImmediate;
- const uint pos = p->num_immediates++;
- uint j;
- assert( imm->Immediate.NrTokens <= 4 + 1 );
- for (j = 0; j < imm->Immediate.NrTokens - 1; j++) {
- p->immediates[pos][j] = imm->u[j].Float;
- }
+ case TGSI_TOKEN_TYPE_IMMEDIATE:
+ {
+ const struct tgsi_full_immediate *imm
+ = &token->FullImmediate;
+ const uint pos = p->num_immediates++;
+ uint j;
+ assert( imm->Immediate.NrTokens <= 4 + 1 );
+ for (j = 0; j < imm->Immediate.NrTokens - 1; j++) {
+ p->immediates[pos][j] = imm->u[j].Float;
}
- break;
+ }
+ break;
- case TGSI_TOKEN_TYPE_INSTRUCTION:
- if (p->first_instruction) {
- /* resolve location of immediates */
- uint i, j;
- for (i = 0; i < p->num_immediates; i++) {
- /* find constant slot for this immediate */
- for (j = 0; j < I915_MAX_CONSTANT; j++) {
- if (ifs->constant_flags[j] == 0x0) {
- memcpy(ifs->constants[j],
- p->immediates[i],
- 4 * sizeof(float));
- /*printf("immediate %d maps to const %d\n", i, j);*/
- ifs->constant_flags[j] = 0xf; /* all four comps used */
- p->immediates_map[i] = j;
- ifs->num_constants = MAX2(ifs->num_constants, j + 1);
- break;
- }
+ case TGSI_TOKEN_TYPE_INSTRUCTION:
+ if (p->first_instruction) {
+ /* resolve location of immediates */
+ uint i, j;
+ for (i = 0; i < p->num_immediates; i++) {
+ /* find constant slot for this immediate */
+ for (j = 0; j < I915_MAX_CONSTANT; j++) {
+ if (ifs->constant_flags[j] == 0x0) {
+ memcpy(ifs->constants[j],
+ p->immediates[i],
+ 4 * sizeof(float));
+ /*printf("immediate %d maps to const %d\n", i, j);*/
+ ifs->constant_flags[j] = 0xf; /* all four comps used */
+ p->immediates_map[i] = j;
+ ifs->num_constants = MAX2(ifs->num_constants, j + 1);
+ break;
}
}
-
- p->first_instruction = FALSE;
}
- i915_translate_instruction(p, &parse.FullToken.FullInstruction, fs);
- break;
-
- default:
- assert( 0 );
+ p->first_instruction = FALSE;
}
- } /* while */
+ i915_translate_instruction(p, &token->FullInstruction, fs);
+ break;
+
+ default:
+ assert( 0 );
+ }
- tgsi_parse_free (&parse);
+}
+
+/**
+ * Translate TGSI fragment shader into i915 hardware instructions.
+ * \param p the translation state
+ * \param tokens the TGSI token array
+ */
+static void
+i915_translate_instructions(struct i915_fp_compile *p,
+ const struct i915_token_list *tokens,
+ struct i915_fragment_shader *fs)
+{
+ int i;
+ for(i = 0; i<tokens->NumTokens; i++) {
+ i915_translate_token(p, &tokens->Tokens[i], fs);
+ }
}
p = i915_init_compile(i915, fs);
- i915_translate_instructions(p, tokens, fs);
+ struct i915_token_list* i_tokens = i915_optimize(tokens);
+ i915_translate_instructions(p, i_tokens, fs);
i915_fixup_depth_write(p);
i915_fini_compile(i915, p);
+ i915_optimize_free(i_tokens);
}
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