* \author Jerome Glisse <j.glisse@gmail.com>
*
* \todo FogOption
- *
- * \todo Verify results of opcodes for accuracy, I've only checked them in
- * specific cases.
*/
-#include "glheader.h"
-#include "macros.h"
-#include "enums.h"
-#include "shader/prog_instruction.h"
-#include "shader/prog_parameter.h"
-#include "shader/prog_print.h"
-
-#include "r300_context.h"
#include "r300_fragprog.h"
-#include "r300_reg.h"
-#include "r300_state.h"
-
-/* Mapping Mesa registers to R300 temporaries */
-struct reg_acc {
- int reg; /* Assigned hw temp */
- unsigned int refcount; /* Number of uses by mesa program */
-};
-
-/**
- * Describe the current lifetime information for an R300 temporary
- */
-struct reg_lifetime {
- /* Index of the first slot where this register is free in the sense
- that it can be used as a new destination register.
- This is -1 if the register has been assigned to a Mesa register
- and the last access to the register has not yet been emitted */
- int free;
-
- /* Index of the first slot where this register is currently reserved.
- This is used to stop e.g. a scalar operation from being moved
- before the allocation time of a register that was first allocated
- for a vector operation. */
- int reserved;
-
- /* Index of the first slot in which the register can be used as a
- source without losing the value that is written by the last
- emitted instruction that writes to the register */
- int vector_valid;
- int scalar_valid;
-
- /* Index to the slot where the register was last read.
- This is also the first slot in which the register may be written again */
- int vector_lastread;
- int scalar_lastread;
-};
-
-/**
- * Store usage information about an ALU instruction slot during the
- * compilation of a fragment program.
- */
-#define SLOT_SRC_VECTOR (1<<0)
-#define SLOT_SRC_SCALAR (1<<3)
-#define SLOT_SRC_BOTH (SLOT_SRC_VECTOR | SLOT_SRC_SCALAR)
-#define SLOT_OP_VECTOR (1<<16)
-#define SLOT_OP_SCALAR (1<<17)
-#define SLOT_OP_BOTH (SLOT_OP_VECTOR | SLOT_OP_SCALAR)
-
-struct r300_pfs_compile_slot {
- /* Bitmask indicating which parts of the slot are used, using SLOT_ constants
- defined above */
- unsigned int used;
-
- /* Selected sources */
- int vsrc[3];
- int ssrc[3];
-};
-
-/**
- * Store information during compilation of fragment programs.
- */
-struct r300_pfs_compile_state {
- struct r300_fragment_program_compiler *compiler;
-
- int nrslots; /* number of ALU slots used so far */
-
- /* Track which (parts of) slots are already filled with instructions */
- struct r300_pfs_compile_slot slot[PFS_MAX_ALU_INST];
-
- /* Track the validity of R300 temporaries */
- struct reg_lifetime hwtemps[PFS_NUM_TEMP_REGS];
- /* Used to map Mesa's inputs/temps onto hardware temps */
- int temp_in_use;
- struct reg_acc temps[PFS_NUM_TEMP_REGS];
- struct reg_acc inputs[32]; /* don't actually need 32... */
+#include "radeon_program_pair.h"
+#include "r300_fragprog_swizzle.h"
+#include "r300_reg.h"
- /* Track usage of hardware temps, for register allocation,
- * indirection detection, etc. */
- GLuint used_in_node;
- GLuint dest_in_node;
-};
+#define PROG_CODE \
+ struct r300_fragment_program_compiler *c = (struct r300_fragment_program_compiler*)data; \
+ struct r300_fragment_program_code *code = &c->code->r300
-/*
- * Usefull macros and values
- */
-#define ERROR(fmt, args...) do { \
+#define error(fmt, args...) do { \
fprintf(stderr, "%s::%s(): " fmt "\n", \
__FILE__, __FUNCTION__, ##args); \
- fp->error = GL_TRUE; \
} while(0)
-#define PFS_INVAL 0xFFFFFFFF
-#define COMPILE_STATE \
- struct r300_fragment_program *fp = cs->compiler->fp; \
- struct r300_fragment_program_code *code = cs->compiler->code; \
- (void)code; (void)fp
-
-#define SWIZZLE_XYZ 0
-#define SWIZZLE_XXX 1
-#define SWIZZLE_YYY 2
-#define SWIZZLE_ZZZ 3
-#define SWIZZLE_WWW 4
-#define SWIZZLE_YZX 5
-#define SWIZZLE_ZXY 6
-#define SWIZZLE_WZY 7
-#define SWIZZLE_111 8
-#define SWIZZLE_000 9
-#define SWIZZLE_HHH 10
-
-#define swizzle(r, x, y, z, w) do_swizzle(cs, r, \
- ((SWIZZLE_##x<<0)| \
- (SWIZZLE_##y<<3)| \
- (SWIZZLE_##z<<6)| \
- (SWIZZLE_##w<<9)), \
- 0)
-
-#define REG_TYPE_INPUT 0
-#define REG_TYPE_OUTPUT 1
-#define REG_TYPE_TEMP 2
-#define REG_TYPE_CONST 3
-
-#define REG_TYPE_SHIFT 0
-#define REG_INDEX_SHIFT 2
-#define REG_VSWZ_SHIFT 8
-#define REG_SSWZ_SHIFT 13
-#define REG_NEGV_SHIFT 18
-#define REG_NEGS_SHIFT 19
-#define REG_ABS_SHIFT 20
-#define REG_NO_USE_SHIFT 21 // Hack for refcounting
-#define REG_VALID_SHIFT 22 // Does the register contain a defined value?
-#define REG_BUILTIN_SHIFT 23 // Is it a builtin (like all zero/all one)?
-
-#define REG_TYPE_MASK (0x03 << REG_TYPE_SHIFT)
-#define REG_INDEX_MASK (0x3F << REG_INDEX_SHIFT)
-#define REG_VSWZ_MASK (0x1F << REG_VSWZ_SHIFT)
-#define REG_SSWZ_MASK (0x1F << REG_SSWZ_SHIFT)
-#define REG_NEGV_MASK (0x01 << REG_NEGV_SHIFT)
-#define REG_NEGS_MASK (0x01 << REG_NEGS_SHIFT)
-#define REG_ABS_MASK (0x01 << REG_ABS_SHIFT)
-#define REG_NO_USE_MASK (0x01 << REG_NO_USE_SHIFT)
-#define REG_VALID_MASK (0x01 << REG_VALID_SHIFT)
-#define REG_BUILTIN_MASK (0x01 << REG_BUILTIN_SHIFT)
-
-#define REG(type, index, vswz, sswz, nouse, valid, builtin) \
- (((type << REG_TYPE_SHIFT) & REG_TYPE_MASK) | \
- ((index << REG_INDEX_SHIFT) & REG_INDEX_MASK) | \
- ((nouse << REG_NO_USE_SHIFT) & REG_NO_USE_MASK) | \
- ((valid << REG_VALID_SHIFT) & REG_VALID_MASK) | \
- ((builtin << REG_BUILTIN_SHIFT) & REG_BUILTIN_MASK) | \
- ((vswz << REG_VSWZ_SHIFT) & REG_VSWZ_MASK) | \
- ((sswz << REG_SSWZ_SHIFT) & REG_SSWZ_MASK))
-#define REG_GET_TYPE(reg) \
- ((reg & REG_TYPE_MASK) >> REG_TYPE_SHIFT)
-#define REG_GET_INDEX(reg) \
- ((reg & REG_INDEX_MASK) >> REG_INDEX_SHIFT)
-#define REG_GET_VSWZ(reg) \
- ((reg & REG_VSWZ_MASK) >> REG_VSWZ_SHIFT)
-#define REG_GET_SSWZ(reg) \
- ((reg & REG_SSWZ_MASK) >> REG_SSWZ_SHIFT)
-#define REG_GET_NO_USE(reg) \
- ((reg & REG_NO_USE_MASK) >> REG_NO_USE_SHIFT)
-#define REG_GET_VALID(reg) \
- ((reg & REG_VALID_MASK) >> REG_VALID_SHIFT)
-#define REG_GET_BUILTIN(reg) \
- ((reg & REG_BUILTIN_MASK) >> REG_BUILTIN_SHIFT)
-#define REG_SET_TYPE(reg, type) \
- reg = ((reg & ~REG_TYPE_MASK) | \
- ((type << REG_TYPE_SHIFT) & REG_TYPE_MASK))
-#define REG_SET_INDEX(reg, index) \
- reg = ((reg & ~REG_INDEX_MASK) | \
- ((index << REG_INDEX_SHIFT) & REG_INDEX_MASK))
-#define REG_SET_VSWZ(reg, vswz) \
- reg = ((reg & ~REG_VSWZ_MASK) | \
- ((vswz << REG_VSWZ_SHIFT) & REG_VSWZ_MASK))
-#define REG_SET_SSWZ(reg, sswz) \
- reg = ((reg & ~REG_SSWZ_MASK) | \
- ((sswz << REG_SSWZ_SHIFT) & REG_SSWZ_MASK))
-#define REG_SET_NO_USE(reg, nouse) \
- reg = ((reg & ~REG_NO_USE_MASK) | \
- ((nouse << REG_NO_USE_SHIFT) & REG_NO_USE_MASK))
-#define REG_SET_VALID(reg, valid) \
- reg = ((reg & ~REG_VALID_MASK) | \
- ((valid << REG_VALID_SHIFT) & REG_VALID_MASK))
-#define REG_SET_BUILTIN(reg, builtin) \
- reg = ((reg & ~REG_BUILTIN_MASK) | \
- ((builtin << REG_BUILTIN_SHIFT) & REG_BUILTIN_MASK))
-#define REG_ABS(reg) \
- reg = (reg | REG_ABS_MASK)
-#define REG_NEGV(reg) \
- reg = (reg | REG_NEGV_MASK)
-#define REG_NEGS(reg) \
- reg = (reg | REG_NEGS_MASK)
-
-#define NOP_INST0 ( \
- (R300_ALU_OUTC_MAD) | \
- (R300_ALU_ARGC_ZERO << R300_ALU_ARG0C_SHIFT) | \
- (R300_ALU_ARGC_ZERO << R300_ALU_ARG1C_SHIFT) | \
- (R300_ALU_ARGC_ZERO << R300_ALU_ARG2C_SHIFT))
-#define NOP_INST1 ( \
- ((0 | SRC_CONST) << R300_ALU_SRC0C_SHIFT) | \
- ((0 | SRC_CONST) << R300_ALU_SRC1C_SHIFT) | \
- ((0 | SRC_CONST) << R300_ALU_SRC2C_SHIFT))
-#define NOP_INST2 ( \
- (R300_ALU_OUTA_MAD) | \
- (R300_ALU_ARGA_ZERO << R300_ALU_ARG0A_SHIFT) | \
- (R300_ALU_ARGA_ZERO << R300_ALU_ARG1A_SHIFT) | \
- (R300_ALU_ARGA_ZERO << R300_ALU_ARG2A_SHIFT))
-#define NOP_INST3 ( \
- ((0 | SRC_CONST) << R300_ALU_SRC0A_SHIFT) | \
- ((0 | SRC_CONST) << R300_ALU_SRC1A_SHIFT) | \
- ((0 | SRC_CONST) << R300_ALU_SRC2A_SHIFT))
-
-
-/*
- * Datas structures for fragment program generation
- */
-
-/* description of r300 native hw instructions */
-static const struct {
- const char *name;
- int argc;
- int v_op;
- int s_op;
-} r300_fpop[] = {
- /* *INDENT-OFF* */
- {"MAD", 3, R300_ALU_OUTC_MAD, R300_ALU_OUTA_MAD},
- {"DP3", 2, R300_ALU_OUTC_DP3, R300_ALU_OUTA_DP4},
- {"DP4", 2, R300_ALU_OUTC_DP4, R300_ALU_OUTA_DP4},
- {"MIN", 2, R300_ALU_OUTC_MIN, R300_ALU_OUTA_MIN},
- {"MAX", 2, R300_ALU_OUTC_MAX, R300_ALU_OUTA_MAX},
- {"CMP", 3, R300_ALU_OUTC_CMP, R300_ALU_OUTA_CMP},
- {"FRC", 1, R300_ALU_OUTC_FRC, R300_ALU_OUTA_FRC},
- {"EX2", 1, R300_ALU_OUTC_REPL_ALPHA, R300_ALU_OUTA_EX2},
- {"LG2", 1, R300_ALU_OUTC_REPL_ALPHA, R300_ALU_OUTA_LG2},
- {"RCP", 1, R300_ALU_OUTC_REPL_ALPHA, R300_ALU_OUTA_RCP},
- {"RSQ", 1, R300_ALU_OUTC_REPL_ALPHA, R300_ALU_OUTA_RSQ},
- {"REPL_ALPHA", 1, R300_ALU_OUTC_REPL_ALPHA, PFS_INVAL},
- {"CMPH", 3, R300_ALU_OUTC_CMPH, PFS_INVAL},
- /* *INDENT-ON* */
-};
-
-/* vector swizzles r300 can support natively, with a couple of
- * cases we handle specially
- *
- * REG_VSWZ/REG_SSWZ is an index into this table
- */
-
-/* mapping from SWIZZLE_* to r300 native values for scalar insns */
-#define SWIZZLE_HALF 6
-
-#define MAKE_SWZ3(x, y, z) (MAKE_SWIZZLE4(SWIZZLE_##x, \
- SWIZZLE_##y, \
- SWIZZLE_##z, \
- SWIZZLE_ZERO))
-/* native swizzles */
-static const struct r300_pfs_swizzle {
- GLuint hash; /* swizzle value this matches */
- GLuint base; /* base value for hw swizzle */
- GLuint stride; /* difference in base between arg0/1/2 */
- GLuint flags;
-} v_swiz[] = {
- /* *INDENT-OFF* */
- {MAKE_SWZ3(X, Y, Z), R300_ALU_ARGC_SRC0C_XYZ, 4, SLOT_SRC_VECTOR},
- {MAKE_SWZ3(X, X, X), R300_ALU_ARGC_SRC0C_XXX, 4, SLOT_SRC_VECTOR},
- {MAKE_SWZ3(Y, Y, Y), R300_ALU_ARGC_SRC0C_YYY, 4, SLOT_SRC_VECTOR},
- {MAKE_SWZ3(Z, Z, Z), R300_ALU_ARGC_SRC0C_ZZZ, 4, SLOT_SRC_VECTOR},
- {MAKE_SWZ3(W, W, W), R300_ALU_ARGC_SRC0A, 1, SLOT_SRC_SCALAR},
- {MAKE_SWZ3(Y, Z, X), R300_ALU_ARGC_SRC0C_YZX, 1, SLOT_SRC_VECTOR},
- {MAKE_SWZ3(Z, X, Y), R300_ALU_ARGC_SRC0C_ZXY, 1, SLOT_SRC_VECTOR},
- {MAKE_SWZ3(W, Z, Y), R300_ALU_ARGC_SRC0CA_WZY, 1, SLOT_SRC_BOTH},
- {MAKE_SWZ3(ONE, ONE, ONE), R300_ALU_ARGC_ONE, 0, 0},
- {MAKE_SWZ3(ZERO, ZERO, ZERO), R300_ALU_ARGC_ZERO, 0, 0},
- {MAKE_SWZ3(HALF, HALF, HALF), R300_ALU_ARGC_HALF, 0, 0},
- {PFS_INVAL, 0, 0, 0},
- /* *INDENT-ON* */
-};
-
-/* used during matching of non-native swizzles */
-#define SWZ_X_MASK (7 << 0)
-#define SWZ_Y_MASK (7 << 3)
-#define SWZ_Z_MASK (7 << 6)
-#define SWZ_W_MASK (7 << 9)
-static const struct {
- GLuint hash; /* used to mask matching swizzle components */
- int mask; /* actual outmask */
- int count; /* count of components matched */
-} s_mask[] = {
- /* *INDENT-OFF* */
- {SWZ_X_MASK | SWZ_Y_MASK | SWZ_Z_MASK, 1 | 2 | 4, 3},
- {SWZ_X_MASK | SWZ_Y_MASK, 1 | 2, 2},
- {SWZ_X_MASK | SWZ_Z_MASK, 1 | 4, 2},
- {SWZ_Y_MASK | SWZ_Z_MASK, 2 | 4, 2},
- {SWZ_X_MASK, 1, 1},
- {SWZ_Y_MASK, 2, 1},
- {SWZ_Z_MASK, 4, 1},
- {PFS_INVAL, PFS_INVAL, PFS_INVAL}
- /* *INDENT-ON* */
-};
-
-static const struct {
- int base; /* hw value of swizzle */
- int stride; /* difference between SRC0/1/2 */
- GLuint flags;
-} s_swiz[] = {
- /* *INDENT-OFF* */
- {R300_ALU_ARGA_SRC0C_X, 3, SLOT_SRC_VECTOR},
- {R300_ALU_ARGA_SRC0C_Y, 3, SLOT_SRC_VECTOR},
- {R300_ALU_ARGA_SRC0C_Z, 3, SLOT_SRC_VECTOR},
- {R300_ALU_ARGA_SRC0A, 1, SLOT_SRC_SCALAR},
- {R300_ALU_ARGA_ZERO, 0, 0},
- {R300_ALU_ARGA_ONE, 0, 0},
- {R300_ALU_ARGA_HALF, 0, 0}
- /* *INDENT-ON* */
-};
-
-/* boiler-plate reg, for convenience */
-static const GLuint undef = REG(REG_TYPE_TEMP,
- 0,
- SWIZZLE_XYZ,
- SWIZZLE_W,
- GL_FALSE,
- GL_FALSE,
- GL_FALSE);
-
-/* constant one source */
-static const GLuint pfs_one = REG(REG_TYPE_CONST,
- 0,
- SWIZZLE_111,
- SWIZZLE_ONE,
- GL_FALSE,
- GL_TRUE,
- GL_TRUE);
-
-/* constant half source */
-static const GLuint pfs_half = REG(REG_TYPE_CONST,
- 0,
- SWIZZLE_HHH,
- SWIZZLE_HALF,
- GL_FALSE,
- GL_TRUE,
- GL_TRUE);
-
-/* constant zero source */
-static const GLuint pfs_zero = REG(REG_TYPE_CONST,
- 0,
- SWIZZLE_000,
- SWIZZLE_ZERO,
- GL_FALSE,
- GL_TRUE,
- GL_TRUE);
-
-/*
- * Common functions prototypes
- */
-static void emit_arith(struct r300_pfs_compile_state *cs, int op,
- GLuint dest, int mask,
- GLuint src0, GLuint src1, GLuint src2, int flags);
-
-/**
- * Get an R300 temporary that can be written to in the given slot.
- */
-static int get_hw_temp(struct r300_pfs_compile_state *cs, int slot)
-{
- COMPILE_STATE;
- int r;
-
- for (r = 0; r < PFS_NUM_TEMP_REGS; ++r) {
- if (cs->hwtemps[r].free >= 0 && cs->hwtemps[r].free <= slot)
- break;
- }
-
- if (r >= PFS_NUM_TEMP_REGS) {
- ERROR("Out of hardware temps\n");
- return 0;
- }
- // Reserved is used to avoid the following scenario:
- // R300 temporary X is first assigned to Mesa temporary Y during vector ops
- // R300 temporary X is then assigned to Mesa temporary Z for further vector ops
- // Then scalar ops on Mesa temporary Z are emitted and move back in time
- // to overwrite the value of temporary Y.
- // End scenario.
- cs->hwtemps[r].reserved = cs->hwtemps[r].free;
- cs->hwtemps[r].free = -1;
-
- // Reset to some value that won't mess things up when the user
- // tries to read from a temporary that hasn't been assigned a value yet.
- // In the normal case, vector_valid and scalar_valid should be set to
- // a sane value by the first emit that writes to this temporary.
- cs->hwtemps[r].vector_valid = 0;
- cs->hwtemps[r].scalar_valid = 0;
-
- if (r > code->max_temp_idx)
- code->max_temp_idx = r;
-
- return r;
-}
-
-/**
- * Get an R300 temporary that will act as a TEX destination register.
- */
-static int get_hw_temp_tex(struct r300_pfs_compile_state *cs)
-{
- COMPILE_STATE;
- int r;
-
- for (r = 0; r < PFS_NUM_TEMP_REGS; ++r) {
- if (cs->used_in_node & (1 << r))
- continue;
-
- // Note: Be very careful here
- if (cs->hwtemps[r].free >= 0 && cs->hwtemps[r].free <= 0)
- break;
- }
-
- if (r >= PFS_NUM_TEMP_REGS)
- return get_hw_temp(cs, 0); /* Will cause an indirection */
-
- cs->hwtemps[r].reserved = cs->hwtemps[r].free;
- cs->hwtemps[r].free = -1;
-
- // Reset to some value that won't mess things up when the user
- // tries to read from a temporary that hasn't been assigned a value yet.
- // In the normal case, vector_valid and scalar_valid should be set to
- // a sane value by the first emit that writes to this temporary.
- cs->hwtemps[r].vector_valid = cs->nrslots;
- cs->hwtemps[r].scalar_valid = cs->nrslots;
-
- if (r > code->max_temp_idx)
- code->max_temp_idx = r;
-
- return r;
-}
-
-/**
- * Mark the given hardware register as free.
- */
-static void free_hw_temp(struct r300_pfs_compile_state *cs, int idx)
-{
- // Be very careful here. Consider sequences like
- // MAD r0, r1,r2,r3
- // TEX r4, ...
- // The TEX instruction may be moved in front of the MAD instruction
- // due to the way nodes work. We don't want to alias r1 and r4 in
- // this case.
- // I'm certain the register allocation could be further sanitized,
- // but it's tricky because of stuff that can happen inside emit_tex
- // and emit_arith.
- cs->hwtemps[idx].free = cs->nrslots + 1;
-}
-
-/**
- * Create a new Mesa temporary register.
- */
-static GLuint get_temp_reg(struct r300_pfs_compile_state *cs)
-{
- COMPILE_STATE;
- GLuint r = undef;
- GLuint index;
-
- index = ffs(~cs->temp_in_use);
- if (!index) {
- ERROR("Out of program temps\n");
- return r;
- }
-
- cs->temp_in_use |= (1 << --index);
- cs->temps[index].refcount = 0xFFFFFFFF;
- cs->temps[index].reg = -1;
-
- REG_SET_TYPE(r, REG_TYPE_TEMP);
- REG_SET_INDEX(r, index);
- REG_SET_VALID(r, GL_TRUE);
- return r;
-}
-
-/**
- * Free a Mesa temporary and the associated R300 temporary.
- */
-static void free_temp(struct r300_pfs_compile_state *cs, GLuint r)
-{
- GLuint index = REG_GET_INDEX(r);
-
- if (!(cs->temp_in_use & (1 << index)))
- return;
-
- if (REG_GET_TYPE(r) == REG_TYPE_TEMP) {
- free_hw_temp(cs, cs->temps[index].reg);
- cs->temps[index].reg = -1;
- cs->temp_in_use &= ~(1 << index);
- } else if (REG_GET_TYPE(r) == REG_TYPE_INPUT) {
- free_hw_temp(cs, cs->inputs[index].reg);
- cs->inputs[index].reg = -1;
- }
-}
-/**
- * Emit a hardware constant/parameter.
- *
- * \p cp Stable pointer to an array of 4 floats.
- * The pointer must be stable in the sense that it remains to be valid
- * and hold the contents of the constant/parameter throughout the lifetime
- * of the fragment program (actually, up until the next time the fragment
- * program is translated).
- */
-static GLuint emit_const4fv(struct r300_pfs_compile_state *cs,
- const GLfloat * cp)
+static GLboolean emit_const(void* data, GLuint file, GLuint index, GLuint *hwindex)
{
- COMPILE_STATE;
- GLuint reg = undef;
- int index;
+ PROG_CODE;
- for (index = 0; index < code->const_nr; ++index) {
- if (code->constant[index] == cp)
+ for (*hwindex = 0; *hwindex < code->const_nr; ++*hwindex) {
+ if (code->constant[*hwindex].File == file &&
+ code->constant[*hwindex].Index == index)
break;
}
- if (index >= code->const_nr) {
- if (index >= PFS_NUM_CONST_REGS) {
- ERROR("Out of hw constants!\n");
- return reg;
+ if (*hwindex >= code->const_nr) {
+ if (*hwindex >= R300_PFS_NUM_CONST_REGS) {
+ error("Out of hw constants!\n");
+ return GL_FALSE;
}
code->const_nr++;
- code->constant[index] = cp;
+ code->constant[*hwindex].File = file;
+ code->constant[*hwindex].Index = index;
}
- REG_SET_TYPE(reg, REG_TYPE_CONST);
- REG_SET_INDEX(reg, index);
- REG_SET_VALID(reg, GL_TRUE);
- return reg;
+ return GL_TRUE;
}
-static INLINE GLuint negate(GLuint r)
-{
- REG_NEGS(r);
- REG_NEGV(r);
- return r;
-}
-/* Hack, to prevent clobbering sources used multiple times when
- * emulating non-native instructions
+/**
+ * Mark a temporary register as used.
*/
-static INLINE GLuint keep(GLuint r)
-{
- REG_SET_NO_USE(r, GL_TRUE);
- return r;
-}
-
-static INLINE GLuint absolute(GLuint r)
-{
- REG_ABS(r);
- return r;
-}
-
-static int swz_native(struct r300_pfs_compile_state *cs,
- GLuint src, GLuint * r, GLuint arbneg)
-{
- COMPILE_STATE;
-
- /* Native swizzle, handle negation */
- src = (src & ~REG_NEGS_MASK) | (((arbneg >> 3) & 1) << REG_NEGS_SHIFT);
-
- if ((arbneg & 0x7) == 0x0) {
- src = src & ~REG_NEGV_MASK;
- *r = src;
- } else if ((arbneg & 0x7) == 0x7) {
- src |= REG_NEGV_MASK;
- *r = src;
- } else {
- if (!REG_GET_VALID(*r))
- *r = get_temp_reg(cs);
- src |= REG_NEGV_MASK;
- emit_arith(cs,
- PFS_OP_MAD,
- *r, arbneg & 0x7, keep(src), pfs_one, pfs_zero, 0);
- src = src & ~REG_NEGV_MASK;
- emit_arith(cs,
- PFS_OP_MAD,
- *r,
- (arbneg ^ 0x7) | WRITEMASK_W,
- src, pfs_one, pfs_zero, 0);
- }
-
- return 3;
-}
-
-static int swz_emit_partial(struct r300_pfs_compile_state *cs,
- GLuint src,
- GLuint * r, int mask, int mc, GLuint arbneg)
-{
- COMPILE_STATE;
- GLuint tmp;
- GLuint wmask = 0;
-
- if (!REG_GET_VALID(*r))
- *r = get_temp_reg(cs);
-
- /* A partial match, VSWZ/mask define what parts of the
- * desired swizzle we match
- */
- if (mc + s_mask[mask].count == 3) {
- wmask = WRITEMASK_W;
- src |= ((arbneg >> 3) & 1) << REG_NEGS_SHIFT;
- }
-
- tmp = arbneg & s_mask[mask].mask;
- if (tmp) {
- tmp = tmp ^ s_mask[mask].mask;
- if (tmp) {
- emit_arith(cs,
- PFS_OP_MAD,
- *r,
- arbneg & s_mask[mask].mask,
- keep(src) | REG_NEGV_MASK,
- pfs_one, pfs_zero, 0);
- if (!wmask) {
- REG_SET_NO_USE(src, GL_TRUE);
- } else {
- REG_SET_NO_USE(src, GL_FALSE);
- }
- emit_arith(cs,
- PFS_OP_MAD,
- *r, tmp | wmask, src, pfs_one, pfs_zero, 0);
- } else {
- if (!wmask) {
- REG_SET_NO_USE(src, GL_TRUE);
- } else {
- REG_SET_NO_USE(src, GL_FALSE);
- }
- emit_arith(cs,
- PFS_OP_MAD,
- *r,
- (arbneg & s_mask[mask].mask) | wmask,
- src | REG_NEGV_MASK, pfs_one, pfs_zero, 0);
- }
- } else {
- if (!wmask) {
- REG_SET_NO_USE(src, GL_TRUE);
- } else {
- REG_SET_NO_USE(src, GL_FALSE);
- }
- emit_arith(cs, PFS_OP_MAD,
- *r,
- s_mask[mask].mask | wmask,
- src, pfs_one, pfs_zero, 0);
- }
-
- return s_mask[mask].count;
-}
-
-static GLuint do_swizzle(struct r300_pfs_compile_state *cs,
- GLuint src, GLuint arbswz, GLuint arbneg)
+static void use_temporary(struct r300_fragment_program_code *code, GLuint index)
{
- COMPILE_STATE;
- GLuint r = undef;
- GLuint vswz;
- int c_mask = 0;
- int v_match = 0;
-
- /* If swizzling from something without an XYZW native swizzle,
- * emit result to a temp, and do new swizzle from the temp.
- */
-#if 0
- if (REG_GET_VSWZ(src) != SWIZZLE_XYZ || REG_GET_SSWZ(src) != SWIZZLE_W) {
- GLuint temp = get_temp_reg(fp);
- emit_arith(fp,
- PFS_OP_MAD,
- temp, WRITEMASK_XYZW, src, pfs_one, pfs_zero, 0);
- src = temp;
- }
-#endif
-
- if (REG_GET_VSWZ(src) != SWIZZLE_XYZ || REG_GET_SSWZ(src) != SWIZZLE_W) {
- GLuint vsrcswz =
- (v_swiz[REG_GET_VSWZ(src)].
- hash & (SWZ_X_MASK | SWZ_Y_MASK | SWZ_Z_MASK)) |
- REG_GET_SSWZ(src) << 9;
- GLint i;
-
- GLuint newswz = 0;
- GLuint offset;
- for (i = 0; i < 4; ++i) {
- offset = GET_SWZ(arbswz, i);
-
- newswz |=
- (offset <= 3) ? GET_SWZ(vsrcswz,
- offset) << i *
- 3 : offset << i * 3;
- }
-
- arbswz = newswz & (SWZ_X_MASK | SWZ_Y_MASK | SWZ_Z_MASK);
- REG_SET_SSWZ(src, GET_SWZ(newswz, 3));
- } else {
- /* set scalar swizzling */
- REG_SET_SSWZ(src, GET_SWZ(arbswz, 3));
-
- }
- do {
- vswz = REG_GET_VSWZ(src);
- do {
- int chash;
-
- REG_SET_VSWZ(src, vswz);
- chash = v_swiz[REG_GET_VSWZ(src)].hash &
- s_mask[c_mask].hash;
-
- if (chash == (arbswz & s_mask[c_mask].hash)) {
- if (s_mask[c_mask].count == 3) {
- v_match += swz_native(cs,
- src, &r, arbneg);
- } else {
- v_match += swz_emit_partial(cs,
- src,
- &r,
- c_mask,
- v_match,
- arbneg);
- }
-
- if (v_match == 3)
- return r;
-
- /* Fill with something invalid.. all 0's was
- * wrong before, matched SWIZZLE_X. So all
- * 1's will be okay for now
- */
- arbswz |= (PFS_INVAL & s_mask[c_mask].hash);
- }
- } while (v_swiz[++vswz].hash != PFS_INVAL);
- REG_SET_VSWZ(src, SWIZZLE_XYZ);
- } while (s_mask[++c_mask].hash != PFS_INVAL);
-
- ERROR("should NEVER get here\n");
- return r;
+ if (index > code->max_temp_idx)
+ code->max_temp_idx = index;
}
-static GLuint t_src(struct r300_pfs_compile_state *cs,
- struct prog_src_register fpsrc)
-{
- COMPILE_STATE;
- GLuint r = undef;
-
- switch (fpsrc.File) {
- case PROGRAM_TEMPORARY:
- REG_SET_INDEX(r, fpsrc.Index);
- REG_SET_VALID(r, GL_TRUE);
- REG_SET_TYPE(r, REG_TYPE_TEMP);
- break;
- case PROGRAM_INPUT:
- REG_SET_INDEX(r, fpsrc.Index);
- REG_SET_VALID(r, GL_TRUE);
- REG_SET_TYPE(r, REG_TYPE_INPUT);
- break;
- case PROGRAM_LOCAL_PARAM:
- r = emit_const4fv(cs,
- fp->mesa_program.Base.LocalParams[fpsrc.
- Index]);
- break;
- case PROGRAM_ENV_PARAM:
- r = emit_const4fv(cs,
- cs->compiler->r300->radeon.glCtx->FragmentProgram.Parameters[fpsrc.Index]);
- break;
- case PROGRAM_STATE_VAR:
- case PROGRAM_NAMED_PARAM:
- case PROGRAM_CONSTANT:
- r = emit_const4fv(cs,
- fp->mesa_program.Base.Parameters->
- ParameterValues[fpsrc.Index]);
- break;
- case PROGRAM_BUILTIN:
- switch(fpsrc.Swizzle) {
- case SWIZZLE_1111: r = pfs_one; break;
- case SWIZZLE_0000: r = pfs_zero; break;
- default:
- ERROR("bad PROGRAM_BUILTIN swizzle %u\n", fpsrc.Swizzle);
- break;
- }
- break;
- default:
- ERROR("unknown SrcReg->File %x\n", fpsrc.File);
- return r;
- }
-
- /* no point swizzling ONE/ZERO/HALF constants... */
- if (REG_GET_VSWZ(r) < SWIZZLE_111 || REG_GET_SSWZ(r) < SWIZZLE_ZERO)
- r = do_swizzle(cs, r, fpsrc.Swizzle, fpsrc.NegateBase);
- if (fpsrc.Abs)
- r = absolute(r);
- if (fpsrc.NegateAbs)
- r = negate(r);
- return r;
-}
-static GLuint t_scalar_src(struct r300_pfs_compile_state *cs,
- struct prog_src_register fpsrc)
+static GLuint translate_rgb_opcode(GLuint opcode)
{
- struct prog_src_register src = fpsrc;
- int sc = GET_SWZ(fpsrc.Swizzle, 0); /* X */
-
- src.Swizzle = ((sc << 0) | (sc << 3) | (sc << 6) | (sc << 9));
-
- return t_src(cs, src);
-}
-
-static GLuint t_dst(struct r300_pfs_compile_state *cs,
- struct prog_dst_register dest)
-{
- COMPILE_STATE;
- GLuint r = undef;
-
- switch (dest.File) {
- case PROGRAM_TEMPORARY:
- REG_SET_INDEX(r, dest.Index);
- REG_SET_VALID(r, GL_TRUE);
- REG_SET_TYPE(r, REG_TYPE_TEMP);
- return r;
- case PROGRAM_OUTPUT:
- REG_SET_TYPE(r, REG_TYPE_OUTPUT);
- switch (dest.Index) {
- case FRAG_RESULT_COLR:
- case FRAG_RESULT_DEPR:
- REG_SET_INDEX(r, dest.Index);
- REG_SET_VALID(r, GL_TRUE);
- return r;
- default:
- ERROR("Bad DstReg->Index 0x%x\n", dest.Index);
- return r;
- }
+ switch(opcode) {
+ case OPCODE_CMP: return R300_ALU_OUTC_CMP;
+ case OPCODE_DP3: return R300_ALU_OUTC_DP3;
+ case OPCODE_DP4: return R300_ALU_OUTC_DP4;
+ case OPCODE_FRC: return R300_ALU_OUTC_FRC;
default:
- ERROR("Bad DstReg->File 0x%x\n", dest.File);
- return r;
+ error("translate_rgb_opcode(%i): Unknown opcode", opcode);
+ /* fall through */
+ case OPCODE_NOP:
+ /* fall through */
+ case OPCODE_MAD: return R300_ALU_OUTC_MAD;
+ case OPCODE_MAX: return R300_ALU_OUTC_MAX;
+ case OPCODE_MIN: return R300_ALU_OUTC_MIN;
+ case OPCODE_REPL_ALPHA: return R300_ALU_OUTC_REPL_ALPHA;
}
}
-static int t_hw_src(struct r300_pfs_compile_state *cs, GLuint src, GLboolean tex)
+static GLuint translate_alpha_opcode(GLuint opcode)
{
- COMPILE_STATE;
- int idx;
- int index = REG_GET_INDEX(src);
-
- switch (REG_GET_TYPE(src)) {
- case REG_TYPE_TEMP:
- /* NOTE: if reg==-1 here, a source is being read that
- * hasn't been written to. Undefined results.
- */
- if (cs->temps[index].reg == -1)
- cs->temps[index].reg = get_hw_temp(cs, cs->nrslots);
-
- idx = cs->temps[index].reg;
-
- if (!REG_GET_NO_USE(src) && (--cs->temps[index].refcount == 0))
- free_temp(cs, src);
- break;
- case REG_TYPE_INPUT:
- idx = cs->inputs[index].reg;
-
- if (!REG_GET_NO_USE(src) && (--cs->inputs[index].refcount == 0))
- free_hw_temp(cs, cs->inputs[index].reg);
- break;
- case REG_TYPE_CONST:
- return (index | SRC_CONST);
- default:
- ERROR("Invalid type for source reg\n");
- return (0 | SRC_CONST);
- }
-
- if (!tex)
- cs->used_in_node |= (1 << idx);
-
- return idx;
-}
-
-static int t_hw_dst(struct r300_pfs_compile_state *cs,
- GLuint dest, GLboolean tex, int slot)
-{
- COMPILE_STATE;
- int idx;
- GLuint index = REG_GET_INDEX(dest);
- assert(REG_GET_VALID(dest));
-
- switch (REG_GET_TYPE(dest)) {
- case REG_TYPE_TEMP:
- if (cs->temps[REG_GET_INDEX(dest)].reg == -1) {
- if (!tex) {
- cs->temps[index].reg = get_hw_temp(cs, slot);
- } else {
- cs->temps[index].reg = get_hw_temp_tex(cs);
- }
- }
- idx = cs->temps[index].reg;
-
- if (!REG_GET_NO_USE(dest) && (--cs->temps[index].refcount == 0))
- free_temp(cs, dest);
-
- cs->dest_in_node |= (1 << idx);
- cs->used_in_node |= (1 << idx);
- break;
- case REG_TYPE_OUTPUT:
- switch (index) {
- case FRAG_RESULT_COLR:
- code->node[code->cur_node].flags |= R300_RGBA_OUT;
- break;
- case FRAG_RESULT_DEPR:
- fp->WritesDepth = GL_TRUE;
- code->node[code->cur_node].flags |= R300_W_OUT;
- break;
- }
- return index;
- break;
+ switch(opcode) {
+ case OPCODE_CMP: return R300_ALU_OUTA_CMP;
+ case OPCODE_DP3: return R300_ALU_OUTA_DP4;
+ case OPCODE_DP4: return R300_ALU_OUTA_DP4;
+ case OPCODE_EX2: return R300_ALU_OUTA_EX2;
+ case OPCODE_FRC: return R300_ALU_OUTA_FRC;
+ case OPCODE_LG2: return R300_ALU_OUTA_LG2;
default:
- ERROR("invalid dest reg type %d\n", REG_GET_TYPE(dest));
- return 0;
- }
-
- return idx;
-}
-
-static void emit_nop(struct r300_pfs_compile_state *cs)
-{
- COMPILE_STATE;
-
- if (cs->nrslots >= PFS_MAX_ALU_INST) {
- ERROR("Out of ALU instruction slots\n");
- return;
+ error("translate_rgb_opcode(%i): Unknown opcode", opcode);
+ /* fall through */
+ case OPCODE_NOP:
+ /* fall through */
+ case OPCODE_MAD: return R300_ALU_OUTA_MAD;
+ case OPCODE_MAX: return R300_ALU_OUTA_MAX;
+ case OPCODE_MIN: return R300_ALU_OUTA_MIN;
+ case OPCODE_RCP: return R300_ALU_OUTA_RCP;
+ case OPCODE_RSQ: return R300_ALU_OUTA_RSQ;
}
-
- code->alu.inst[cs->nrslots].inst0 = NOP_INST0;
- code->alu.inst[cs->nrslots].inst1 = NOP_INST1;
- code->alu.inst[cs->nrslots].inst2 = NOP_INST2;
- code->alu.inst[cs->nrslots].inst3 = NOP_INST3;
- cs->nrslots++;
-}
-
-static void emit_tex(struct r300_pfs_compile_state *cs,
- struct prog_instruction *fpi, int opcode)
-{
- COMPILE_STATE;
- GLuint coord = t_src(cs, fpi->SrcReg[0]);
- GLuint dest = undef;
- GLuint din, uin;
- int unit = fpi->TexSrcUnit;
- int hwsrc, hwdest;
-
- /* Ensure correct node indirection */
- uin = cs->used_in_node;
- din = cs->dest_in_node;
-
- /* Resolve source/dest to hardware registers */
- hwsrc = t_hw_src(cs, coord, GL_TRUE);
-
- if (opcode != R300_TEX_OP_KIL) {
- dest = t_dst(cs, fpi->DstReg);
-
- hwdest =
- t_hw_dst(cs, dest, GL_TRUE,
- code->node[code->cur_node].alu_offset);
-
- /* Use a temp that hasn't been used in this node, rather
- * than causing an indirection
- */
- if (uin & (1 << hwdest)) {
- free_hw_temp(cs, hwdest);
- hwdest = get_hw_temp_tex(cs);
- cs->temps[REG_GET_INDEX(dest)].reg = hwdest;
- }
- } else {
- hwdest = 0;
- unit = 0;
- }
-
- /* Indirection if source has been written in this node, or if the
- * dest has been read/written in this node
- */
- if ((REG_GET_TYPE(coord) != REG_TYPE_CONST &&
- (din & (1 << hwsrc))) || (uin & (1 << hwdest))) {
-
- /* Finish off current node */
- if (code->node[code->cur_node].alu_offset == cs->nrslots)
- emit_nop(cs);
-
- code->node[code->cur_node].alu_end =
- cs->nrslots - code->node[code->cur_node].alu_offset - 1;
- assert(code->node[code->cur_node].alu_end >= 0);
-
- if (++code->cur_node >= PFS_MAX_TEX_INDIRECT) {
- ERROR("too many levels of texture indirection\n");
- return;
- }
-
- /* Start new node */
- code->node[code->cur_node].tex_offset = code->tex.length;
- code->node[code->cur_node].alu_offset = cs->nrslots;
- code->node[code->cur_node].tex_end = -1;
- code->node[code->cur_node].alu_end = -1;
- code->node[code->cur_node].flags = 0;
- cs->used_in_node = 0;
- cs->dest_in_node = 0;
- }
-
- if (code->cur_node == 0)
- code->first_node_has_tex = 1;
-
- code->tex.inst[code->tex.length++] = 0 | (hwsrc << R300_SRC_ADDR_SHIFT)
- | (hwdest << R300_DST_ADDR_SHIFT)
- | (unit << R300_TEX_ID_SHIFT)
- | (opcode << R300_TEX_INST_SHIFT);
-
- cs->dest_in_node |= (1 << hwdest);
- if (REG_GET_TYPE(coord) != REG_TYPE_CONST)
- cs->used_in_node |= (1 << hwsrc);
-
- code->node[code->cur_node].tex_end++;
}
/**
- * Returns the first slot where we could possibly allow writing to dest,
- * according to register allocation.
+ * Emit one paired ALU instruction.
*/
-static int get_earliest_allowed_write(struct r300_pfs_compile_state *cs,
- GLuint dest, int mask)
+static GLboolean emit_alu(void* data, struct radeon_pair_instruction* inst)
{
- COMPILE_STATE;
- int idx;
- int pos;
- GLuint index = REG_GET_INDEX(dest);
- assert(REG_GET_VALID(dest));
+ PROG_CODE;
- switch (REG_GET_TYPE(dest)) {
- case REG_TYPE_TEMP:
- if (cs->temps[index].reg == -1)
- return 0;
-
- idx = cs->temps[index].reg;
- break;
- case REG_TYPE_OUTPUT:
- return 0;
- default:
- ERROR("invalid dest reg type %d\n", REG_GET_TYPE(dest));
- return 0;
- }
-
- pos = cs->hwtemps[idx].reserved;
- if (mask & WRITEMASK_XYZ) {
- if (pos < cs->hwtemps[idx].vector_lastread)
- pos = cs->hwtemps[idx].vector_lastread;
- }
- if (mask & WRITEMASK_W) {
- if (pos < cs->hwtemps[idx].scalar_lastread)
- pos = cs->hwtemps[idx].scalar_lastread;
+ if (code->alu.length >= R300_PFS_MAX_ALU_INST) {
+ error("Too many ALU instructions");
+ return GL_FALSE;
}
- return pos;
-}
-
-/**
- * Allocates a slot for an ALU instruction that can consist of
- * a vertex part or a scalar part or both.
- *
- * Sources from src (src[0] to src[argc-1]) are added to the slot in the
- * appropriate position (vector and/or scalar), and their positions are
- * recorded in the srcpos array.
- *
- * This function emits instruction code for the source fetch and the
- * argument selection. It does not emit instruction code for the
- * opcode or the destination selection.
- *
- * @return the index of the slot
- */
-static int find_and_prepare_slot(struct r300_pfs_compile_state *cs,
- GLboolean emit_vop,
- GLboolean emit_sop,
- int argc, GLuint * src, GLuint dest, int mask)
-{
- COMPILE_STATE;
- int hwsrc[3];
- int srcpos[3];
- unsigned int used;
- int tempused;
- int tempvsrc[3];
- int tempssrc[3];
- int pos;
- int regnr;
- int i, j;
+ int ip = code->alu.length++;
+ int j;
+ code->node[code->cur_node].alu_end++;
- // Determine instruction slots, whether sources are required on
- // vector or scalar side, and the smallest slot number where
- // all source registers are available
- used = 0;
- if (emit_vop)
- used |= SLOT_OP_VECTOR;
- if (emit_sop)
- used |= SLOT_OP_SCALAR;
+ code->alu.inst[ip].inst0 = translate_rgb_opcode(inst->RGB.Opcode);
+ code->alu.inst[ip].inst2 = translate_alpha_opcode(inst->Alpha.Opcode);
- pos = get_earliest_allowed_write(cs, dest, mask);
+ for(j = 0; j < 3; ++j) {
+ GLuint src = inst->RGB.Src[j].Index | (inst->RGB.Src[j].Constant << 5);
+ if (!inst->RGB.Src[j].Constant)
+ use_temporary(code, inst->RGB.Src[j].Index);
+ code->alu.inst[ip].inst1 |= src << (6*j);
- if (code->node[code->cur_node].alu_offset > pos)
- pos = code->node[code->cur_node].alu_offset;
- for (i = 0; i < argc; ++i) {
- if (!REG_GET_BUILTIN(src[i])) {
- if (emit_vop)
- used |= v_swiz[REG_GET_VSWZ(src[i])].flags << i;
- if (emit_sop)
- used |= s_swiz[REG_GET_SSWZ(src[i])].flags << i;
- }
+ src = inst->Alpha.Src[j].Index | (inst->Alpha.Src[j].Constant << 5);
+ if (!inst->Alpha.Src[j].Constant)
+ use_temporary(code, inst->Alpha.Src[j].Index);
+ code->alu.inst[ip].inst3 |= src << (6*j);
- hwsrc[i] = t_hw_src(cs, src[i], GL_FALSE); /* Note: sideeffects wrt refcounting! */
- regnr = hwsrc[i] & 31;
+ GLuint arg = r300FPTranslateRGBSwizzle(inst->RGB.Arg[j].Source, inst->RGB.Arg[j].Swizzle);
+ arg |= inst->RGB.Arg[j].Abs << 6;
+ arg |= inst->RGB.Arg[j].Negate << 5;
+ code->alu.inst[ip].inst0 |= arg << (7*j);
- if (REG_GET_TYPE(src[i]) == REG_TYPE_TEMP) {
- if (used & (SLOT_SRC_VECTOR << i)) {
- if (cs->hwtemps[regnr].vector_valid > pos)
- pos = cs->hwtemps[regnr].vector_valid;
- }
- if (used & (SLOT_SRC_SCALAR << i)) {
- if (cs->hwtemps[regnr].scalar_valid > pos)
- pos = cs->hwtemps[regnr].scalar_valid;
- }
- }
+ arg = r300FPTranslateAlphaSwizzle(inst->Alpha.Arg[j].Source, inst->Alpha.Arg[j].Swizzle);
+ arg |= inst->Alpha.Arg[j].Abs << 6;
+ arg |= inst->Alpha.Arg[j].Negate << 5;
+ code->alu.inst[ip].inst2 |= arg << (7*j);
}
- // Find a slot that fits
- for (;; ++pos) {
- if (cs->slot[pos].used & used & SLOT_OP_BOTH)
- continue;
-
- if (pos >= cs->nrslots) {
- if (cs->nrslots >= PFS_MAX_ALU_INST) {
- ERROR("Out of ALU instruction slots\n");
- return -1;
- }
-
- code->alu.inst[pos].inst0 = NOP_INST0;
- code->alu.inst[pos].inst1 = NOP_INST1;
- code->alu.inst[pos].inst2 = NOP_INST2;
- code->alu.inst[pos].inst3 = NOP_INST3;
-
- cs->nrslots++;
- }
- // Note: When we need both parts (vector and scalar) of a source,
- // we always try to put them into the same position. This makes the
- // code easier to read, and it is optimal (i.e. one doesn't gain
- // anything by splitting the parts).
- // It also avoids headaches with swizzles that access both parts (i.e WXY)
- tempused = cs->slot[pos].used;
- for (i = 0; i < 3; ++i) {
- tempvsrc[i] = cs->slot[pos].vsrc[i];
- tempssrc[i] = cs->slot[pos].ssrc[i];
- }
-
- for (i = 0; i < argc; ++i) {
- int flags = (used >> i) & SLOT_SRC_BOTH;
-
- if (!flags) {
- srcpos[i] = 0;
- continue;
- }
-
- for (j = 0; j < 3; ++j) {
- if ((tempused >> j) & flags & SLOT_SRC_VECTOR) {
- if (tempvsrc[j] != hwsrc[i])
- continue;
- }
-
- if ((tempused >> j) & flags & SLOT_SRC_SCALAR) {
- if (tempssrc[j] != hwsrc[i])
- continue;
- }
-
- break;
- }
+ if (inst->RGB.Saturate)
+ code->alu.inst[ip].inst0 |= R300_ALU_OUTC_CLAMP;
+ if (inst->Alpha.Saturate)
+ code->alu.inst[ip].inst2 |= R300_ALU_OUTA_CLAMP;
- if (j == 3)
- break;
-
- srcpos[i] = j;
- tempused |= flags << j;
- if (flags & SLOT_SRC_VECTOR)
- tempvsrc[j] = hwsrc[i];
- if (flags & SLOT_SRC_SCALAR)
- tempssrc[j] = hwsrc[i];
- }
-
- if (i == argc)
- break;
+ if (inst->RGB.WriteMask) {
+ use_temporary(code, inst->RGB.DestIndex);
+ code->alu.inst[ip].inst1 |=
+ (inst->RGB.DestIndex << R300_ALU_DSTC_SHIFT) |
+ (inst->RGB.WriteMask << R300_ALU_DSTC_REG_MASK_SHIFT);
}
-
- // Found a slot, reserve it
- cs->slot[pos].used = tempused | (used & SLOT_OP_BOTH);
- for (i = 0; i < 3; ++i) {
- cs->slot[pos].vsrc[i] = tempvsrc[i];
- cs->slot[pos].ssrc[i] = tempssrc[i];
+ if (inst->RGB.OutputWriteMask) {
+ code->alu.inst[ip].inst1 |= (inst->RGB.OutputWriteMask << R300_ALU_DSTC_OUTPUT_MASK_SHIFT);
+ code->node[code->cur_node].flags |= R300_RGBA_OUT;
}
- for (i = 0; i < argc; ++i) {
- if (REG_GET_TYPE(src[i]) == REG_TYPE_TEMP) {
- int regnr = hwsrc[i] & 31;
-
- if (used & (SLOT_SRC_VECTOR << i)) {
- if (cs->hwtemps[regnr].vector_lastread < pos)
- cs->hwtemps[regnr].vector_lastread =
- pos;
- }
- if (used & (SLOT_SRC_SCALAR << i)) {
- if (cs->hwtemps[regnr].scalar_lastread < pos)
- cs->hwtemps[regnr].scalar_lastread =
- pos;
- }
- }
+ if (inst->Alpha.WriteMask) {
+ use_temporary(code, inst->Alpha.DestIndex);
+ code->alu.inst[ip].inst3 |=
+ (inst->Alpha.DestIndex << R300_ALU_DSTA_SHIFT) |
+ R300_ALU_DSTA_REG;
}
-
- // Emit the source fetch code
- code->alu.inst[pos].inst1 &= ~R300_ALU_SRC_MASK;
- code->alu.inst[pos].inst1 |=
- ((cs->slot[pos].vsrc[0] << R300_ALU_SRC0C_SHIFT) |
- (cs->slot[pos].vsrc[1] << R300_ALU_SRC1C_SHIFT) |
- (cs->slot[pos].vsrc[2] << R300_ALU_SRC2C_SHIFT));
-
- code->alu.inst[pos].inst3 &= ~R300_ALU_SRC_MASK;
- code->alu.inst[pos].inst3 |=
- ((cs->slot[pos].ssrc[0] << R300_ALU_SRC0A_SHIFT) |
- (cs->slot[pos].ssrc[1] << R300_ALU_SRC1A_SHIFT) |
- (cs->slot[pos].ssrc[2] << R300_ALU_SRC2A_SHIFT));
-
- // Emit the argument selection code
- if (emit_vop) {
- int swz[3];
-
- for (i = 0; i < 3; ++i) {
- if (i < argc) {
- swz[i] = (v_swiz[REG_GET_VSWZ(src[i])].base +
- (srcpos[i] *
- v_swiz[REG_GET_VSWZ(src[i])].
- stride)) | ((src[i] & REG_NEGV_MASK)
- ? ARG_NEG : 0) | ((src[i]
- &
- REG_ABS_MASK)
- ?
- ARG_ABS
- : 0);
- } else {
- swz[i] = R300_ALU_ARGC_ZERO;
- }
- }
-
- code->alu.inst[pos].inst0 &=
- ~(R300_ALU_ARG0C_MASK | R300_ALU_ARG1C_MASK |
- R300_ALU_ARG2C_MASK);
- code->alu.inst[pos].inst0 |=
- (swz[0] << R300_ALU_ARG0C_SHIFT) | (swz[1] <<
- R300_ALU_ARG1C_SHIFT)
- | (swz[2] << R300_ALU_ARG2C_SHIFT);
+ if (inst->Alpha.OutputWriteMask) {
+ code->alu.inst[ip].inst3 |= R300_ALU_DSTA_OUTPUT;
+ code->node[code->cur_node].flags |= R300_RGBA_OUT;
}
-
- if (emit_sop) {
- int swz[3];
-
- for (i = 0; i < 3; ++i) {
- if (i < argc) {
- swz[i] = (s_swiz[REG_GET_SSWZ(src[i])].base +
- (srcpos[i] *
- s_swiz[REG_GET_SSWZ(src[i])].
- stride)) | ((src[i] & REG_NEGS_MASK)
- ? ARG_NEG : 0) | ((src[i]
- &
- REG_ABS_MASK)
- ?
- ARG_ABS
- : 0);
- } else {
- swz[i] = R300_ALU_ARGA_ZERO;
- }
- }
-
- code->alu.inst[pos].inst2 &=
- ~(R300_ALU_ARG0A_MASK | R300_ALU_ARG1A_MASK |
- R300_ALU_ARG2A_MASK);
- code->alu.inst[pos].inst2 |=
- (swz[0] << R300_ALU_ARG0A_SHIFT) | (swz[1] <<
- R300_ALU_ARG1A_SHIFT)
- | (swz[2] << R300_ALU_ARG2A_SHIFT);
+ if (inst->Alpha.DepthWriteMask) {
+ code->alu.inst[ip].inst3 |= R300_ALU_DSTA_DEPTH;
+ code->node[code->cur_node].flags |= R300_W_OUT;
+ c->fp->writes_depth = GL_TRUE;
}
- return pos;
+ return GL_TRUE;
}
+
/**
- * Append an ALU instruction to the instruction list.
+ * Finish the current node without advancing to the next one.
*/
-static void emit_arith(struct r300_pfs_compile_state *cs,
- int op,
- GLuint dest,
- int mask,
- GLuint src0, GLuint src1, GLuint src2, int flags)
+static GLboolean finish_node(struct r300_fragment_program_compiler *c)
{
- COMPILE_STATE;
- GLuint src[3] = { src0, src1, src2 };
- int hwdest;
- GLboolean emit_vop, emit_sop;
- int vop, sop, argc;
- int pos;
-
- vop = r300_fpop[op].v_op;
- sop = r300_fpop[op].s_op;
- argc = r300_fpop[op].argc;
+ struct r300_fragment_program_code *code = &c->code->r300;
+ struct r300_fragment_program_node *node = &code->node[code->cur_node];
- if (REG_GET_TYPE(dest) == REG_TYPE_OUTPUT &&
- REG_GET_INDEX(dest) == FRAG_RESULT_DEPR) {
- if (mask & WRITEMASK_Z) {
- mask = WRITEMASK_W;
- } else {
- return;
- }
+ if (node->alu_end < 0) {
+ /* Generate a single NOP for this node */
+ struct radeon_pair_instruction inst;
+ _mesa_bzero(&inst, sizeof(inst));
+ if (!emit_alu(c, &inst))
+ return GL_FALSE;
}
- emit_vop = GL_FALSE;
- emit_sop = GL_FALSE;
- if ((mask & WRITEMASK_XYZ) || vop == R300_ALU_OUTC_DP3)
- emit_vop = GL_TRUE;
- if ((mask & WRITEMASK_W) || vop == R300_ALU_OUTC_REPL_ALPHA)
- emit_sop = GL_TRUE;
-
- pos =
- find_and_prepare_slot(cs, emit_vop, emit_sop, argc, src, dest,
- mask);
- if (pos < 0)
- return;
-
- hwdest = t_hw_dst(cs, dest, GL_FALSE, pos); /* Note: Side effects wrt register allocation */
-
- if (flags & PFS_FLAG_SAT) {
- vop |= R300_ALU_OUTC_CLAMP;
- sop |= R300_ALU_OUTA_CLAMP;
- }
-
- /* Throw the pieces together and get ALU/1 */
- if (emit_vop) {
- code->alu.inst[pos].inst0 |= vop;
-
- code->alu.inst[pos].inst1 |= hwdest << R300_ALU_DSTC_SHIFT;
-
- if (REG_GET_TYPE(dest) == REG_TYPE_OUTPUT) {
- if (REG_GET_INDEX(dest) == FRAG_RESULT_COLR) {
- code->alu.inst[pos].inst1 |=
- (mask & WRITEMASK_XYZ) <<
- R300_ALU_DSTC_OUTPUT_MASK_SHIFT;
- } else
- assert(0);
+ if (node->tex_end < 0) {
+ if (code->cur_node == 0) {
+ node->tex_end = 0;
} else {
- code->alu.inst[pos].inst1 |=
- (mask & WRITEMASK_XYZ) <<
- R300_ALU_DSTC_REG_MASK_SHIFT;
-
- cs->hwtemps[hwdest].vector_valid = pos + 1;
- }
- }
-
- /* And now ALU/3 */
- if (emit_sop) {
- code->alu.inst[pos].inst2 |= sop;
-
- if (mask & WRITEMASK_W) {
- if (REG_GET_TYPE(dest) == REG_TYPE_OUTPUT) {
- if (REG_GET_INDEX(dest) == FRAG_RESULT_COLR) {
- code->alu.inst[pos].inst3 |=
- (hwdest << R300_ALU_DSTA_SHIFT) |
- R300_ALU_DSTA_OUTPUT;
- } else if (REG_GET_INDEX(dest) ==
- FRAG_RESULT_DEPR) {
- code->alu.inst[pos].inst3 |=
- R300_ALU_DSTA_DEPTH;
- } else
- assert(0);
- } else {
- code->alu.inst[pos].inst3 |=
- (hwdest << R300_ALU_DSTA_SHIFT) |
- R300_ALU_DSTA_REG;
-
- cs->hwtemps[hwdest].scalar_valid = pos + 1;
- }
+ error("Node %i has no TEX instructions", code->cur_node);
+ return GL_FALSE;
}
+ } else {
+ if (code->cur_node == 0)
+ code->first_node_has_tex = 1;
}
- return;
+ return GL_TRUE;
}
-static GLfloat SinCosConsts[2][4] = {
- {
- 1.273239545, // 4/PI
- -0.405284735, // -4/(PI*PI)
- 3.141592654, // PI
- 0.2225 // weight
- },
- {
- 0.75,
- 0.0,
- 0.159154943, // 1/(2*PI)
- 6.283185307 // 2*PI
- }
-};
/**
- * Emit a LIT instruction.
- * \p flags may be PFS_FLAG_SAT
- *
- * Definition of LIT (from ARB_fragment_program):
- * tmp = VectorLoad(op0);
- * if (tmp.x < 0) tmp.x = 0;
- * if (tmp.y < 0) tmp.y = 0;
- * if (tmp.w < -(128.0-epsilon)) tmp.w = -(128.0-epsilon);
- * else if (tmp.w > 128-epsilon) tmp.w = 128-epsilon;
- * result.x = 1.0;
- * result.y = tmp.x;
- * result.z = (tmp.x > 0) ? RoughApproxPower(tmp.y, tmp.w) : 0.0;
- * result.w = 1.0;
- *
- * The longest path of computation is the one leading to result.z,
- * consisting of 5 operations. This implementation of LIT takes
- * 5 slots. So unless there's some special undocumented opcode,
- * this implementation is potentially optimal. Unfortunately,
- * emit_arith is a bit too conservative because it doesn't understand
- * partial writes to the vector component.
+ * Begin a block of texture instructions.
+ * Create the necessary indirection.
*/
-static const GLfloat LitConst[4] =
- { 127.999999, 127.999999, 127.999999, -127.999999 };
-
-static void emit_lit(struct r300_pfs_compile_state *cs,
- GLuint dest, int mask, GLuint src, int flags)
+static GLboolean begin_tex(void* data)
{
- COMPILE_STATE;
- GLuint cnst;
- int needTemporary;
- GLuint temp;
-
- cnst = emit_const4fv(cs, LitConst);
-
- needTemporary = 0;
- if ((mask & WRITEMASK_XYZW) != WRITEMASK_XYZW) {
- needTemporary = 1;
- } else if (REG_GET_TYPE(dest) == REG_TYPE_OUTPUT) {
- // LIT is typically followed by DP3/DP4, so there's no point
- // in creating special code for this case
- needTemporary = 1;
- }
-
- if (needTemporary) {
- temp = keep(get_temp_reg(cs));
- } else {
- temp = keep(dest);
- }
+ PROG_CODE;
- // Note: The order of emit_arith inside the slots is relevant,
- // because emit_arith only looks at scalar vs. vector when resolving
- // dependencies, and it does not consider individual vector components,
- // so swizzling between the two parts can create fake dependencies.
-
- // First slot
- emit_arith(cs, PFS_OP_MAX, temp, WRITEMASK_XY,
- keep(src), pfs_zero, undef, 0);
- emit_arith(cs, PFS_OP_MAX, temp, WRITEMASK_W, src, cnst, undef, 0);
-
- // Second slot
- emit_arith(cs, PFS_OP_MIN, temp, WRITEMASK_Z,
- swizzle(temp, W, W, W, W), cnst, undef, 0);
- emit_arith(cs, PFS_OP_LG2, temp, WRITEMASK_W,
- swizzle(temp, Y, Y, Y, Y), undef, undef, 0);
-
- // Third slot
- // If desired, we saturate the y result here.
- // This does not affect the use as a condition variable in the CMP later
- emit_arith(cs, PFS_OP_MAD, temp, WRITEMASK_W,
- temp, swizzle(temp, Z, Z, Z, Z), pfs_zero, 0);
- emit_arith(cs, PFS_OP_MAD, temp, WRITEMASK_Y,
- swizzle(temp, X, X, X, X), pfs_one, pfs_zero, flags);
-
- // Fourth slot
- emit_arith(cs, PFS_OP_MAD, temp, WRITEMASK_X,
- pfs_one, pfs_one, pfs_zero, 0);
- emit_arith(cs, PFS_OP_EX2, temp, WRITEMASK_W, temp, undef, undef, 0);
-
- // Fifth slot
- emit_arith(cs, PFS_OP_CMP, temp, WRITEMASK_Z,
- pfs_zero, swizzle(temp, W, W, W, W),
- negate(swizzle(temp, Y, Y, Y, Y)), flags);
- emit_arith(cs, PFS_OP_MAD, temp, WRITEMASK_W, pfs_one, pfs_one,
- pfs_zero, 0);
-
- if (needTemporary) {
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- temp, pfs_one, pfs_zero, flags);
- free_temp(cs, temp);
- } else {
- // Decrease refcount of the destination
- t_hw_dst(cs, dest, GL_FALSE, cs->nrslots);
+ if (code->cur_node == 0) {
+ if (code->node[0].alu_end < 0 &&
+ code->node[0].tex_end < 0)
+ return GL_TRUE;
}
-}
-
-static void emit_instruction(struct r300_pfs_compile_state *cs, struct prog_instruction *fpi)
-{
- COMPILE_STATE;
- GLuint src[3], dest, temp[2];
- int flags, mask = 0;
- int const_sin[2];
-
- if (fpi->SaturateMode == SATURATE_ZERO_ONE)
- flags = PFS_FLAG_SAT;
- else
- flags = 0;
-
- if (fpi->Opcode != OPCODE_KIL) {
- dest = t_dst(cs, fpi->DstReg);
- mask = fpi->DstReg.WriteMask;
- }
-
- switch (fpi->Opcode) {
- case OPCODE_ADD:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- src[0], pfs_one, src[1], flags);
- break;
- case OPCODE_CMP:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- src[2] = t_src(cs, fpi->SrcReg[2]);
- /* ARB_f_p - if src0.c < 0.0 ? src1.c : src2.c
- * r300 - if src2.c < 0.0 ? src1.c : src0.c
- */
- emit_arith(cs, PFS_OP_CMP, dest, mask,
- src[2], src[1], src[0], flags);
- break;
- case OPCODE_COS:
- /*
- * cos using a parabola (see SIN):
- * cos(x):
- * x = (x/(2*PI))+0.75
- * x = frac(x)
- * x = (x*2*PI)-PI
- * result = sin(x)
- */
- temp[0] = get_temp_reg(cs);
- const_sin[0] = emit_const4fv(cs, SinCosConsts[0]);
- const_sin[1] = emit_const4fv(cs, SinCosConsts[1]);
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
-
- /* add 0.5*PI and do range reduction */
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_X,
- swizzle(src[0], X, X, X, X),
- swizzle(const_sin[1], Z, Z, Z, Z),
- swizzle(const_sin[1], X, X, X, X), 0);
-
- emit_arith(cs, PFS_OP_FRC, temp[0], WRITEMASK_X,
- swizzle(temp[0], X, X, X, X),
- undef, undef, 0);
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_Z, swizzle(temp[0], X, X, X, X), swizzle(const_sin[1], W, W, W, W), //2*PI
- negate(swizzle(const_sin[0], Z, Z, Z, Z)), //-PI
- 0);
-
- /* SIN */
-
- emit_arith(cs, PFS_OP_MAD, temp[0],
- WRITEMASK_X | WRITEMASK_Y, swizzle(temp[0],
- Z, Z, Z,
- Z),
- const_sin[0], pfs_zero, 0);
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_X,
- swizzle(temp[0], Y, Y, Y, Y),
- absolute(swizzle(temp[0], Z, Z, Z, Z)),
- swizzle(temp[0], X, X, X, X), 0);
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_Y,
- swizzle(temp[0], X, X, X, X),
- absolute(swizzle(temp[0], X, X, X, X)),
- negate(swizzle(temp[0], X, X, X, X)), 0);
-
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- swizzle(temp[0], Y, Y, Y, Y),
- swizzle(const_sin[0], W, W, W, W),
- swizzle(temp[0], X, X, X, X), flags);
-
- free_temp(cs, temp[0]);
- break;
- case OPCODE_DP3:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- emit_arith(cs, PFS_OP_DP3, dest, mask,
- src[0], src[1], undef, flags);
- break;
- case OPCODE_DP4:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- emit_arith(cs, PFS_OP_DP4, dest, mask,
- src[0], src[1], undef, flags);
- break;
- case OPCODE_DST:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- /* dest.y = src0.y * src1.y */
- if (mask & WRITEMASK_Y)
- emit_arith(cs, PFS_OP_MAD, dest, WRITEMASK_Y,
- keep(src[0]), keep(src[1]),
- pfs_zero, flags);
- /* dest.z = src0.z */
- if (mask & WRITEMASK_Z)
- emit_arith(cs, PFS_OP_MAD, dest, WRITEMASK_Z,
- src[0], pfs_one, pfs_zero, flags);
- /* result.x = 1.0
- * result.w = src1.w */
- if (mask & WRITEMASK_XW) {
- REG_SET_VSWZ(src[1], SWIZZLE_111); /*Cheat */
- emit_arith(cs, PFS_OP_MAD, dest,
- mask & WRITEMASK_XW,
- src[1], pfs_one, pfs_zero, flags);
- }
- break;
- case OPCODE_EX2:
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
- emit_arith(cs, PFS_OP_EX2, dest, mask,
- src[0], undef, undef, flags);
- break;
- case OPCODE_FRC:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- emit_arith(cs, PFS_OP_FRC, dest, mask,
- src[0], undef, undef, flags);
- break;
- case OPCODE_KIL:
- emit_tex(cs, fpi, R300_TEX_OP_KIL);
- break;
- case OPCODE_LG2:
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
- emit_arith(cs, PFS_OP_LG2, dest, mask,
- src[0], undef, undef, flags);
- break;
- case OPCODE_LIT:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- emit_lit(cs, dest, mask, src[0], flags);
- break;
- case OPCODE_LRP:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- src[2] = t_src(cs, fpi->SrcReg[2]);
- /* result = tmp0tmp1 + (1 - tmp0)tmp2
- * = tmp0tmp1 + tmp2 + (-tmp0)tmp2
- * MAD temp, -tmp0, tmp2, tmp2
- * MAD result, tmp0, tmp1, temp
- */
- temp[0] = get_temp_reg(cs);
- emit_arith(cs, PFS_OP_MAD, temp[0], mask,
- negate(keep(src[0])), keep(src[2]), src[2],
- 0);
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- src[0], src[1], temp[0], flags);
- free_temp(cs, temp[0]);
- break;
- case OPCODE_MAD:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- src[2] = t_src(cs, fpi->SrcReg[2]);
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- src[0], src[1], src[2], flags);
- break;
- case OPCODE_MAX:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- emit_arith(cs, PFS_OP_MAX, dest, mask,
- src[0], src[1], undef, flags);
- break;
- case OPCODE_MIN:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- emit_arith(cs, PFS_OP_MIN, dest, mask,
- src[0], src[1], undef, flags);
- break;
- case OPCODE_MOV:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- src[0], pfs_one, pfs_zero, flags);
- break;
- case OPCODE_MUL:
- src[0] = t_src(cs, fpi->SrcReg[0]);
- src[1] = t_src(cs, fpi->SrcReg[1]);
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- src[0], src[1], pfs_zero, flags);
- break;
- case OPCODE_RCP:
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
- emit_arith(cs, PFS_OP_RCP, dest, mask,
- src[0], undef, undef, flags);
- break;
- case OPCODE_RSQ:
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
- emit_arith(cs, PFS_OP_RSQ, dest, mask,
- absolute(src[0]), pfs_zero, pfs_zero, flags);
- break;
- case OPCODE_SCS:
- /*
- * scs using a parabola :
- * scs(x):
- * result.x = sin(-abs(x)+0.5*PI) (cos)
- * result.y = sin(x) (sin)
- *
- */
- temp[0] = get_temp_reg(cs);
- temp[1] = get_temp_reg(cs);
- const_sin[0] = emit_const4fv(cs, SinCosConsts[0]);
- const_sin[1] = emit_const4fv(cs, SinCosConsts[1]);
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
-
- /* x = -abs(x)+0.5*PI */
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_Z, swizzle(const_sin[0], Z, Z, Z, Z), //PI
- pfs_half,
- negate(abs
- (swizzle(keep(src[0]), X, X, X, X))),
- 0);
-
- /* C*x (sin) */
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_W,
- swizzle(const_sin[0], Y, Y, Y, Y),
- swizzle(keep(src[0]), X, X, X, X),
- pfs_zero, 0);
-
- /* B*x, C*x (cos) */
- emit_arith(cs, PFS_OP_MAD, temp[0],
- WRITEMASK_X | WRITEMASK_Y, swizzle(temp[0],
- Z, Z, Z,
- Z),
- const_sin[0], pfs_zero, 0);
-
- /* B*x (sin) */
- emit_arith(cs, PFS_OP_MAD, temp[1], WRITEMASK_W,
- swizzle(const_sin[0], X, X, X, X),
- keep(src[0]), pfs_zero, 0);
-
- /* y = B*x + C*x*abs(x) (sin) */
- emit_arith(cs, PFS_OP_MAD, temp[1], WRITEMASK_Z,
- absolute(src[0]),
- swizzle(temp[0], W, W, W, W),
- swizzle(temp[1], W, W, W, W), 0);
-
- /* y = B*x + C*x*abs(x) (cos) */
- emit_arith(cs, PFS_OP_MAD, temp[1], WRITEMASK_W,
- swizzle(temp[0], Y, Y, Y, Y),
- absolute(swizzle(temp[0], Z, Z, Z, Z)),
- swizzle(temp[0], X, X, X, X), 0);
-
- /* y*abs(y) - y (cos), y*abs(y) - y (sin) */
- emit_arith(cs, PFS_OP_MAD, temp[0],
- WRITEMASK_X | WRITEMASK_Y, swizzle(temp[1],
- W, Z, Y,
- X),
- absolute(swizzle(temp[1], W, Z, Y, X)),
- negate(swizzle(temp[1], W, Z, Y, X)), 0);
-
- /* dest.xy = mad(temp.xy, P, temp2.wz) */
- emit_arith(cs, PFS_OP_MAD, dest,
- mask & (WRITEMASK_X | WRITEMASK_Y), temp[0],
- swizzle(const_sin[0], W, W, W, W),
- swizzle(temp[1], W, Z, Y, X), flags);
-
- free_temp(cs, temp[0]);
- free_temp(cs, temp[1]);
- break;
- case OPCODE_SIN:
- /*
- * using a parabola:
- * sin(x) = 4/pi * x + -4/(pi*pi) * x * abs(x)
- * extra precision is obtained by weighting against
- * itself squared.
- */
-
- temp[0] = get_temp_reg(cs);
- const_sin[0] = emit_const4fv(cs, SinCosConsts[0]);
- const_sin[1] = emit_const4fv(cs, SinCosConsts[1]);
- src[0] = t_scalar_src(cs, fpi->SrcReg[0]);
- /* do range reduction */
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_X,
- swizzle(keep(src[0]), X, X, X, X),
- swizzle(const_sin[1], Z, Z, Z, Z),
- pfs_half, 0);
-
- emit_arith(cs, PFS_OP_FRC, temp[0], WRITEMASK_X,
- swizzle(temp[0], X, X, X, X),
- undef, undef, 0);
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_Z, swizzle(temp[0], X, X, X, X), swizzle(const_sin[1], W, W, W, W), //2*PI
- negate(swizzle(const_sin[0], Z, Z, Z, Z)), //PI
- 0);
-
- /* SIN */
-
- emit_arith(cs, PFS_OP_MAD, temp[0],
- WRITEMASK_X | WRITEMASK_Y, swizzle(temp[0],
- Z, Z, Z,
- Z),
- const_sin[0], pfs_zero, 0);
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_X,
- swizzle(temp[0], Y, Y, Y, Y),
- absolute(swizzle(temp[0], Z, Z, Z, Z)),
- swizzle(temp[0], X, X, X, X), 0);
-
- emit_arith(cs, PFS_OP_MAD, temp[0], WRITEMASK_Y,
- swizzle(temp[0], X, X, X, X),
- absolute(swizzle(temp[0], X, X, X, X)),
- negate(swizzle(temp[0], X, X, X, X)), 0);
-
- emit_arith(cs, PFS_OP_MAD, dest, mask,
- swizzle(temp[0], Y, Y, Y, Y),
- swizzle(const_sin[0], W, W, W, W),
- swizzle(temp[0], X, X, X, X), flags);
-
- free_temp(cs, temp[0]);
- break;
- case OPCODE_TEX:
- emit_tex(cs, fpi, R300_TEX_OP_LD);
- break;
- case OPCODE_TXB:
- emit_tex(cs, fpi, R300_TEX_OP_TXB);
- break;
- case OPCODE_TXP:
- emit_tex(cs, fpi, R300_TEX_OP_TXP);
- break;
- default:
- ERROR("unknown fpi->Opcode %d\n", fpi->Opcode);
- break;
+ if (code->cur_node == 3) {
+ error("Too many texture indirections");
+ return GL_FALSE;
}
-}
-static GLboolean parse_program(struct r300_pfs_compile_state *cs)
-{
- COMPILE_STATE;
- int clauseidx;
-
- for (clauseidx = 0; clauseidx < cs->compiler->compiler.NumClauses; ++clauseidx) {
- struct radeon_clause* clause = &cs->compiler->compiler.Clauses[clauseidx];
- int ip;
-
- for(ip = 0; ip < clause->NumInstructions; ++ip) {
- emit_instruction(cs, clause->Instructions + ip);
-
- if (fp->error)
- return GL_FALSE;
- }
- }
+ if (!finish_node(c))
+ return GL_FALSE;
+ struct r300_fragment_program_node *node = &code->node[++code->cur_node];
+ node->alu_offset = code->alu.length;
+ node->alu_end = -1;
+ node->tex_offset = code->tex.length;
+ node->tex_end = -1;
return GL_TRUE;
}
-/* - Init structures
- * - Determine what hwregs each input corresponds to
- */
-static void init_program(struct r300_pfs_compile_state *cs)
+static GLboolean emit_tex(void* data, struct prog_instruction* inst)
{
- COMPILE_STATE;
- struct gl_fragment_program *mp = &fp->mesa_program;
- GLuint InputsRead = mp->Base.InputsRead;
- GLuint temps_used = 0; /* for fp->temps[] */
- int i, j;
-
- /* New compile, reset tracking data */
- fp->optimization =
- driQueryOptioni(&cs->compiler->r300->radeon.optionCache, "fp_optimization");
- fp->translated = GL_FALSE;
- fp->error = GL_FALSE;
- fp->WritesDepth = GL_FALSE;
- code->tex.length = 0;
- code->cur_node = 0;
- code->first_node_has_tex = 0;
- code->const_nr = 0;
- code->max_temp_idx = 0;
- code->node[0].alu_end = -1;
- code->node[0].tex_end = -1;
+ PROG_CODE;
- for (i = 0; i < PFS_MAX_ALU_INST; i++) {
- for (j = 0; j < 3; j++) {
- cs->slot[i].vsrc[j] = SRC_CONST;
- cs->slot[i].ssrc[j] = SRC_CONST;
- }
- }
-
- /* Work out what temps the Mesa inputs correspond to, this must match
- * what setup_rs_unit does, which shouldn't be a problem as rs_unit
- * configures itself based on the fragprog's InputsRead
- *
- * NOTE: this depends on get_hw_temp() allocating registers in order,
- * starting from register 0.
- */
-
- /* Texcoords come first */
- for (i = 0; i < cs->compiler->r300->radeon.glCtx->Const.MaxTextureUnits; i++) {
- if (InputsRead & (FRAG_BIT_TEX0 << i)) {
- cs->inputs[FRAG_ATTRIB_TEX0 + i].refcount = 0;
- cs->inputs[FRAG_ATTRIB_TEX0 + i].reg =
- get_hw_temp(cs, 0);
- }
- }
- InputsRead &= ~FRAG_BITS_TEX_ANY;
-
- /* fragment position treated as a texcoord */
- if (InputsRead & FRAG_BIT_WPOS) {
- cs->inputs[FRAG_ATTRIB_WPOS].refcount = 0;
- cs->inputs[FRAG_ATTRIB_WPOS].reg = get_hw_temp(cs, 0);
+ if (code->tex.length >= R300_PFS_MAX_TEX_INST) {
+ error("Too many TEX instructions");
+ return GL_FALSE;
}
- InputsRead &= ~FRAG_BIT_WPOS;
- /* Then primary colour */
- if (InputsRead & FRAG_BIT_COL0) {
- cs->inputs[FRAG_ATTRIB_COL0].refcount = 0;
- cs->inputs[FRAG_ATTRIB_COL0].reg = get_hw_temp(cs, 0);
- }
- InputsRead &= ~FRAG_BIT_COL0;
+ GLuint unit = inst->TexSrcUnit;
+ GLuint dest = inst->DstReg.Index;
+ GLuint opcode;
- /* Secondary color */
- if (InputsRead & FRAG_BIT_COL1) {
- cs->inputs[FRAG_ATTRIB_COL1].refcount = 0;
- cs->inputs[FRAG_ATTRIB_COL1].reg = get_hw_temp(cs, 0);
+ switch(inst->Opcode) {
+ case OPCODE_KIL: opcode = R300_TEX_OP_KIL; break;
+ case OPCODE_TEX: opcode = R300_TEX_OP_LD; break;
+ case OPCODE_TXB: opcode = R300_TEX_OP_TXB; break;
+ case OPCODE_TXP: opcode = R300_TEX_OP_TXP; break;
+ default:
+ error("Unknown texture opcode %i", inst->Opcode);
+ return GL_FALSE;
}
- InputsRead &= ~FRAG_BIT_COL1;
- /* Anything else */
- if (InputsRead) {
- WARN_ONCE("Don't know how to handle inputs 0x%x\n", InputsRead);
- /* force read from hwreg 0 for now */
- for (i = 0; i < 32; i++)
- if (InputsRead & (1 << i))
- cs->inputs[i].reg = 0;
+ if (inst->Opcode == OPCODE_KIL) {
+ unit = 0;
+ dest = 0;
+ } else {
+ use_temporary(code, dest);
}
- /* Pre-parse the program, grabbing refcounts on input/temp regs.
- * That way, we can free up the reg when it's no longer needed
- */
- for (i = 0; i < cs->compiler->compiler.Clauses[0].NumInstructions; ++i) {
- struct prog_instruction *fpi = cs->compiler->compiler.Clauses[0].Instructions + i;
- int idx;
+ use_temporary(code, inst->SrcReg[0].Index);
- for (j = 0; j < 3; j++) {
- idx = fpi->SrcReg[j].Index;
- switch (fpi->SrcReg[j].File) {
- case PROGRAM_TEMPORARY:
- if (!(temps_used & (1 << idx))) {
- cs->temps[idx].reg = -1;
- cs->temps[idx].refcount = 1;
- temps_used |= (1 << idx);
- } else
- cs->temps[idx].refcount++;
- break;
- case PROGRAM_INPUT:
- cs->inputs[idx].refcount++;
- break;
- default:
- break;
- }
- }
-
- idx = fpi->DstReg.Index;
- if (fpi->DstReg.File == PROGRAM_TEMPORARY) {
- if (!(temps_used & (1 << idx))) {
- cs->temps[idx].reg = -1;
- cs->temps[idx].refcount = 1;
- temps_used |= (1 << idx);
- } else
- cs->temps[idx].refcount++;
- }
- }
- cs->temp_in_use = temps_used;
+ code->node[code->cur_node].tex_end++;
+ code->tex.inst[code->tex.length++] =
+ (inst->SrcReg[0].Index << R300_SRC_ADDR_SHIFT) |
+ (dest << R300_DST_ADDR_SHIFT) |
+ (unit << R300_TEX_ID_SHIFT) |
+ (opcode << R300_TEX_INST_SHIFT);
+ return GL_TRUE;
}
+static const struct radeon_pair_handler pair_handler = {
+ .EmitConst = &emit_const,
+ .EmitPaired = &emit_alu,
+ .EmitTex = &emit_tex,
+ .BeginTexBlock = &begin_tex,
+ .MaxHwTemps = R300_PFS_NUM_TEMP_REGS
+};
+
/**
* Final compilation step: Turn the intermediate radeon_program into
* machine-readable instructions.
*/
-GLboolean r300FragmentProgramEmit(struct r300_fragment_program_compiler *compiler)
+GLboolean r300BuildFragmentProgramHwCode(struct r300_fragment_program_compiler *compiler)
{
- struct r300_pfs_compile_state cs;
- struct r300_fragment_program_code *code = compiler->code;
+ struct r300_fragment_program_code *code = &compiler->code->r300;
- _mesa_memset(&cs, 0, sizeof(cs));
- cs.compiler = compiler;
- init_program(&cs);
+ _mesa_bzero(code, sizeof(struct r300_fragment_program_code));
+ code->node[0].alu_end = -1;
+ code->node[0].tex_end = -1;
- if (!parse_program(&cs))
+ if (!radeonPairProgram(compiler->r300->radeon.glCtx, compiler->program, &pair_handler, compiler))
return GL_FALSE;
- /* Finish off */
- code->node[code->cur_node].alu_end =
- cs.nrslots - code->node[code->cur_node].alu_offset - 1;
- if (code->node[code->cur_node].tex_end < 0)
- code->node[code->cur_node].tex_end = 0;
- code->alu_offset = 0;
- code->alu_end = cs.nrslots - 1;
- code->tex_offset = 0;
- code->tex_end = code->tex.length ? code->tex.length - 1 : 0;
- assert(code->node[code->cur_node].alu_end >= 0);
- assert(code->alu_end >= 0);
+ if (!finish_node(compiler))
+ return GL_FALSE;
return GL_TRUE;
}
projects / mesa.git / blobdiff