/*
- * Copyright 2003 Tungsten Graphics, inc.
+ * Copyright 2003 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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 THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * VMWARE AND/OR THEIR 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 <keithw@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
-#include "glheader.h"
-#include "context.h"
-#include "colormac.h"
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/colormac.h"
+#include "util/simple_list.h"
+#include "main/enums.h"
+#include "swrast/s_chan.h"
#include "t_context.h"
#include "t_vertex.h"
-#include "simple_list.h"
+
+#if defined(USE_SSE_ASM)
+
+#include "x86/rtasm/x86sse.h"
+#include "x86/common_x86_asm.h"
+
+
+/**
+ * Number of bytes to allocate for generated SSE functions
+ */
+#define MAX_SSE_CODE_SIZE 1024
+
#define X 0
#define Y 1
#define Z 2
#define W 3
-#define DISASSEM 1
-
-struct x86_reg {
- GLuint file:3;
- GLuint idx:3;
- GLuint mod:2; /* mod_REG if this is just a register */
- GLint disp:24; /* only +/- 23bits of offset - should be enough... */
-};
struct x86_program {
- GLcontext *ctx;
-
- GLubyte *store;
- GLubyte *csr;
-
- GLuint stack_offset;
+ struct x86_function func;
+ struct gl_context *ctx;
GLboolean inputs_safe;
GLboolean outputs_safe;
GLboolean have_sse2;
- GLboolean need_emms;
struct x86_reg identity;
- struct x86_reg vp0;
- struct x86_reg vp1;
-};
-
-
-#define X86_TWOB 0x0f
-
-/* There are more but these are all we'll use:
- */
-enum x86_reg_file {
- file_REG32,
- file_MMX,
- file_XMM
-};
-
-/* Values for mod field of modr/m byte
- */
-enum x86_reg_mod {
- mod_INDIRECT,
- mod_DISP8,
- mod_DISP32,
- mod_REG
-};
-
-enum x86_reg_name {
- reg_AX,
- reg_CX,
- reg_DX,
- reg_BX,
- reg_SP,
- reg_BP,
- reg_SI,
- reg_DI
+ struct x86_reg chan0;
};
-enum x86_cc {
- cc_O, /* overflow */
- cc_NO, /* not overflow */
- cc_NAE, /* not above or equal / carry */
- cc_AE, /* above or equal / not carry */
- cc_E, /* equal / zero */
- cc_NE /* not equal / not zero */
-};
-
-#define cc_Z cc_E
-#define cc_NZ cc_NE
-
-
-/* Create and manipulate registers and regmem values:
- */
-static struct x86_reg make_reg( GLuint file,
- GLuint idx )
-{
- struct x86_reg reg;
-
- reg.file = file;
- reg.idx = idx;
- reg.mod = mod_REG;
- reg.disp = 0;
-
- return reg;
-}
-
-static struct x86_reg make_disp( struct x86_reg reg,
- GLint disp )
-{
- assert(reg.file == file_REG32);
-
- if (reg.mod == mod_REG)
- reg.disp = disp;
- else
- reg.disp += disp;
-
- if (reg.disp == 0)
- reg.mod = mod_INDIRECT;
- else if (reg.disp <= 127 && reg.disp >= -128)
- reg.mod = mod_DISP8;
- else
- reg.mod = mod_DISP32;
-
- return reg;
-}
-
-static struct x86_reg deref( struct x86_reg reg )
-{
- return make_disp(reg, 0);
-}
-
-static struct x86_reg get_base_reg( struct x86_reg reg )
-{
- return make_reg( reg.file, reg.idx );
-}
-
-
-/* Retreive a reference to one of the function arguments, taking into
- * account any push/pop activity:
- */
-static struct x86_reg make_fn_arg( struct x86_program *p,
- GLuint arg )
-{
- return make_disp(make_reg(file_REG32, reg_SP),
- p->stack_offset + arg * 4); /* ??? */
-}
-
static struct x86_reg get_identity( struct x86_program *p )
{
return p->identity;
}
-
-/* Emit bytes to the instruction stream:
- */
-static void emit_1b( struct x86_program *p, GLbyte b0 )
-{
- *(GLbyte *)(p->csr++) = b0;
-}
-
-static void emit_1i( struct x86_program *p, GLint i0 )
-{
- *(GLint *)(p->csr) = i0;
- p->csr += 4;
-}
-
-static void disassem( struct x86_program *p, const char *fn )
-{
-#if DISASSEM
- static const char *last_fn;
- if (fn && fn != last_fn) {
- _mesa_printf("0x%x: %s\n", p->csr, fn);
- last_fn = fn;
- }
-#endif
-}
-
-static void emit_1ub_fn( struct x86_program *p, GLubyte b0, const char *fn )
-{
- disassem(p, fn);
- *(p->csr++) = b0;
-}
-
-static void emit_2ub_fn( struct x86_program *p, GLubyte b0, GLubyte b1, const char *fn )
-{
- disassem(p, fn);
- *(p->csr++) = b0;
- *(p->csr++) = b1;
-}
-
-static void emit_3ub_fn( struct x86_program *p, GLubyte b0, GLubyte b1, GLubyte b2, const char *fn )
-{
- disassem(p, fn);
- *(p->csr++) = b0;
- *(p->csr++) = b1;
- *(p->csr++) = b2;
-}
-
-#define emit_1ub(p, b0) emit_1ub_fn(p, b0, __FUNCTION__)
-#define emit_2ub(p, b0, b1) emit_2ub_fn(p, b0, b1, __FUNCTION__)
-#define emit_3ub(p, b0, b1, b2) emit_3ub_fn(p, b0, b1, b2, __FUNCTION__)
-
-
-/* Labels, jumps and fixup:
- */
-static GLubyte *get_label( struct x86_program *p )
-{
- return p->csr;
-}
-
-static void x86_jcc( struct x86_program *p,
- GLuint cc,
- GLubyte *label )
-{
- GLint offset = label - (get_label(p) + 2);
-
- if (offset <= 127 && offset >= -128) {
- emit_1ub(p, 0x70 + cc);
- emit_1b(p, (GLbyte) offset);
- }
- else {
- offset = label - (get_label(p) + 6);
- emit_2ub(p, 0x0f, 0x80 + cc);
- emit_1i(p, offset);
- }
-}
-
-/* Always use a 32bit offset for forward jumps:
- */
-static GLubyte *x86_jcc_forward( struct x86_program *p,
- GLuint cc )
-{
- emit_2ub(p, 0x0f, 0x80 + cc);
- emit_1i(p, 0);
- return get_label(p);
-}
-
-/* Fixup offset from forward jump:
- */
-static void do_fixup( struct x86_program *p,
- GLubyte *fixup )
-{
- *(int *)(fixup - 4) = get_label(p) - fixup;
-}
-
-static void x86_push( struct x86_program *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x50 + reg.idx);
- p->stack_offset += 4;
-}
-
-static void x86_pop( struct x86_program *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x58 + reg.idx);
- p->stack_offset -= 4;
-}
-
-static void x86_inc( struct x86_program *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x40 + reg.idx);
-}
-
-static void x86_dec( struct x86_program *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x48 + reg.idx);
-}
-
-static void x86_ret( struct x86_program *p )
-{
- emit_1ub(p, 0xc3);
-}
-
-static void mmx_emms( struct x86_program *p )
-{
- assert(p->need_emms);
- emit_2ub(p, 0x0f, 0x0e);
- p->need_emms = 0;
-}
-
-
-
-
-/* Build a modRM byte + possible displacement. No treatment of SIB
- * indexing. BZZT - no way to encode an absolute address.
- */
-static void emit_modrm( struct x86_program *p,
- struct x86_reg reg,
- struct x86_reg regmem )
-{
- GLubyte val = 0;
-
- assert(reg.mod == mod_REG);
-
- val |= regmem.mod << 6; /* mod field */
- val |= reg.idx << 3; /* reg field */
- val |= regmem.idx; /* r/m field */
-
- emit_1ub_fn(p, val, 0);
-
- /* Oh-oh we've stumbled into the SIB thing.
- */
- if (regmem.idx == reg_SP) {
- emit_1ub_fn(p, 0x24, 0); /* simplistic! */
- }
-
- switch (regmem.mod) {
- case mod_REG:
- case mod_INDIRECT:
- break;
- case mod_DISP8:
- emit_1b(p, regmem.disp);
- break;
- case mod_DISP32:
- emit_1i(p, regmem.disp);
- break;
- }
-}
-
-/* Many x86 instructions have two opcodes to cope with the situations
- * where the destination is a register or memory reference
- * respectively. This function selects the correct opcode based on
- * the arguments presented.
- */
-static void emit_op_modrm( struct x86_program *p,
- GLubyte op_dst_is_reg,
- GLubyte op_dst_is_mem,
- struct x86_reg dst,
- struct x86_reg src )
-{
- switch (dst.mod) {
- case mod_REG:
- emit_1ub_fn(p, op_dst_is_reg, 0);
- emit_modrm(p, dst, src);
- break;
- case mod_INDIRECT:
- case mod_DISP32:
- case mod_DISP8:
- assert(src.mod == mod_REG);
- emit_1ub_fn(p, op_dst_is_mem, 0);
- emit_modrm(p, src, dst);
- break;
- }
-}
-
-static void x86_mov( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x8b, 0x89, dst, src );
-}
-
-static void x86_xor( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x33, 0x31, dst, src );
-}
-
-static void x86_cmp( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x3b, 0x39, dst, src );
-}
-
-static void sse2_movd( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(p->have_sse2);
- emit_2ub(p, 0x66, X86_TWOB);
- emit_op_modrm( p, 0x6e, 0x7e, dst, src );
-}
-
-static void mmx_movd( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- p->need_emms = 1;
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x6e, 0x7e, dst, src );
-}
-
-static void mmx_movq( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- p->need_emms = 1;
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x6f, 0x7f, dst, src );
-}
-
-
-static void sse_movss( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, 0xF3, X86_TWOB);
- emit_op_modrm( p, 0x10, 0x11, dst, src );
-}
-
-static void sse_movaps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x28, 0x29, dst, src );
-}
-
-static void sse_movups( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x10, 0x11, dst, src );
-}
-
-static void sse_movhps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod != mod_REG || src.mod != mod_REG);
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x16, 0x17, dst, src ); /* cf movlhps */
-}
-
-static void sse_movlps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod != mod_REG || src.mod != mod_REG);
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x12, 0x13, dst, src ); /* cf movhlps */
-}
-
-/* SSE operations often only have one format, with dest constrained to
- * be a register:
- */
-static void sse_mulps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x59);
- emit_modrm( p, dst, src );
-}
-
-static void sse_addps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x58);
- emit_modrm( p, dst, src );
-}
-
-static void sse_movhlps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod == mod_REG && src.mod == mod_REG);
- emit_2ub(p, X86_TWOB, 0x12);
- emit_modrm( p, dst, src );
-}
-
-static void sse_movlhps( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod == mod_REG && src.mod == mod_REG);
- emit_2ub(p, X86_TWOB, 0x16);
- emit_modrm( p, dst, src );
-}
-
-static void sse2_cvtps2dq( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(p->have_sse2);
- emit_3ub(p, 0x66, X86_TWOB, 0x5B);
- emit_modrm( p, dst, src );
-}
-
-static void sse2_packssdw( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(p->have_sse2);
- emit_3ub(p, 0x66, X86_TWOB, 0x6B);
- emit_modrm( p, dst, src );
-}
-
-static void sse2_packsswb( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(p->have_sse2);
- emit_3ub(p, 0x66, X86_TWOB, 0x63);
- emit_modrm( p, dst, src );
-}
-
-static void sse2_packuswb( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(p->have_sse2);
- emit_3ub(p, 0x66, X86_TWOB, 0x67);
- emit_modrm( p, dst, src );
-}
-
-static void sse_cvtps2pi( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.file == file_MMX &&
- (src.file == file_XMM || src.mod != mod_REG));
-
- p->need_emms = 1;
-
- emit_2ub(p, X86_TWOB, 0x2d);
- emit_modrm( p, dst, src );
-}
-
-static void mmx_packssdw( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.file == file_MMX &&
- (src.file == file_MMX || src.mod != mod_REG));
-
- p->need_emms = 1;
-
- emit_2ub(p, X86_TWOB, 0x6b);
- emit_modrm( p, dst, src );
-}
-
-static void mmx_packuswb( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.file == file_MMX &&
- (src.file == file_MMX || src.mod != mod_REG));
-
- p->need_emms = 1;
-
- emit_2ub(p, X86_TWOB, 0x67);
- emit_modrm( p, dst, src );
-}
-
-
-/* Load effective address:
- */
-static void x86_lea( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, 0x8d);
- emit_modrm( p, dst, src );
-}
-
-static void x86_test( struct x86_program *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, 0x85);
- emit_modrm( p, dst, src );
-}
-
-
-
-
-/**
- * Perform a reduced swizzle:
- */
-static void sse2_pshufd( struct x86_program *p,
- struct x86_reg dest,
- struct x86_reg arg0,
- GLubyte x,
- GLubyte y,
- GLubyte z,
- GLubyte w)
-{
- assert(p->have_sse2);
- emit_3ub(p, 0x66, X86_TWOB, 0x70);
- emit_modrm(p, dest, arg0);
- emit_1ub(p, (x|(y<<2)|(z<<4)|w<<6));
-}
-
-
-/* Shufps can also be used to implement a reduced swizzle when dest ==
- * arg0.
- */
-static void sse_shufps( struct x86_program *p,
- struct x86_reg dest,
- struct x86_reg arg0,
- GLubyte x,
- GLubyte y,
- GLubyte z,
- GLubyte w)
-{
- emit_2ub(p, X86_TWOB, 0xC6);
- emit_modrm(p, dest, arg0);
- emit_1ub(p, (x|(y<<2)|(z<<4)|w<<6));
-}
-
-
static void emit_load4f_4( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- sse_movups(p, dest, arg0);
+ sse_movups(&p->func, dest, arg0);
}
static void emit_load4f_3( struct x86_program *p,
{
/* Have to jump through some hoops:
*
- * 0 0 0 1 -- skip if reg[3] preserved over loop iterations
+ * c 0 0 0
* c 0 0 1
* 0 0 c 1
- * a b c 1
+ * a b c 1
*/
- sse_movaps(p, dest, get_identity(p));
- sse_movss(p, dest, make_disp(arg0, 8));
- sse_shufps(p, dest, dest, Y,Z,X,W );
- sse_movlps(p, dest, arg0);
+ sse_movss(&p->func, dest, x86_make_disp(arg0, 8));
+ sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) );
+ sse_shufps(&p->func, dest, dest, SHUF(Y,Z,X,W) );
+ sse_movlps(&p->func, dest, arg0);
}
static void emit_load4f_2( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- /* Pull in 2 dwords, then copy the top 2 dwords with 0,1 from id.
+ /* Initialize from identity, then pull in low two words:
*/
- sse_movlps(p, dest, arg0);
- sse_movhps(p, dest, get_identity(p));
+ sse_movups(&p->func, dest, get_identity(p));
+ sse_movlps(&p->func, dest, arg0);
}
static void emit_load4f_1( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- /* Initialized with [0,0,0,1] from id, then pull in the single low
- * word.
- */
- sse_movaps(p, dest, get_identity(p));
- sse_movss(p, dest, arg0);
+ /* Pull in low word, then swizzle in identity */
+ sse_movss(&p->func, dest, arg0);
+ sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) );
}
* array.
*/
if (p->inputs_safe) {
- sse_movups(p, dest, arg0);
+ sse_movups(&p->func, dest, arg0);
}
else {
- /* c . . .
+ /* c 0 0 0
* c c c c
* a b c c
*/
- sse_movss(p, dest, make_disp(arg0, 8));
- sse_shufps(p, dest, dest, X,X,X,X);
- sse_movlps(p, dest, arg0);
+ sse_movss(&p->func, dest, x86_make_disp(arg0, 8));
+ sse_shufps(&p->func, dest, dest, SHUF(X,X,X,X));
+ sse_movlps(&p->func, dest, arg0);
}
}
struct x86_reg dest,
struct x86_reg arg0 )
{
- emit_load4f_1(p, dest, arg0);
+ /* Loading from memory erases the upper bits. */
+ sse_movss(&p->func, dest, arg0);
}
static void emit_load2f_2( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- sse_movlps(p, dest, arg0);
+ sse_movlps(&p->func, dest, arg0);
}
static void emit_load2f_1( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- emit_load4f_1(p, dest, arg0);
+ /* Loading from memory erases the upper bits. */
+ sse_movss(&p->func, dest, arg0);
}
static void emit_load1f_1( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- sse_movss(p, dest, arg0);
+ sse_movss(&p->func, dest, arg0);
}
static void (*load[4][4])( struct x86_program *p,
struct x86_reg src,
GLuint src_sz)
{
- if (DISASSEM)
- _mesa_printf("load %d/%d\n", sz, src_sz);
load[sz-1][src_sz-1](p, dest, src);
}
-
static void emit_store4f( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- sse_movups(p, dest, arg0);
+ sse_movups(&p->func, dest, arg0);
}
static void emit_store3f( struct x86_program *p,
/* Emit the extra dword anyway. This may hurt writecombining,
* may cause other problems.
*/
- sse_movups(p, dest, arg0);
+ sse_movups(&p->func, dest, arg0);
}
else {
/* Alternate strategy - emit two, shuffle, emit one.
*/
- sse_movlps(p, dest, arg0);
- sse_shufps(p, arg0, arg0, Z, Z, Z, Z ); /* NOTE! destructive */
- sse_movss(p, make_disp(dest,8), arg0);
+ sse_movlps(&p->func, dest, arg0);
+ sse_shufps(&p->func, arg0, arg0, SHUF(Z,Z,Z,Z) ); /* NOTE! destructive */
+ sse_movss(&p->func, x86_make_disp(dest,8), arg0);
}
}
struct x86_reg dest,
struct x86_reg arg0 )
{
- sse_movlps(p, dest, arg0);
+ sse_movlps(&p->func, dest, arg0);
}
static void emit_store1f( struct x86_program *p,
struct x86_reg dest,
struct x86_reg arg0 )
{
- sse_movss(p, dest, arg0);
+ sse_movss(&p->func, dest, arg0);
}
struct x86_reg temp )
{
- if (DISASSEM)
- _mesa_printf("store %d\n", sz);
store[sz-1](p, dest, temp);
}
struct x86_reg dest,
struct x86_reg temp )
{
+ /* Scale by 255.0
+ */
+ sse_mulps(&p->func, temp, p->chan0);
+
if (p->have_sse2) {
- sse2_cvtps2dq(p, temp, temp);
- sse2_packssdw(p, temp, temp);
- sse2_packuswb(p, temp, temp);
- sse_movss(p, dest, temp);
+ sse2_cvtps2dq(&p->func, temp, temp);
+ sse2_packssdw(&p->func, temp, temp);
+ sse2_packuswb(&p->func, temp, temp);
+ sse_movss(&p->func, dest, temp);
}
else {
- struct x86_reg mmx0 = make_reg(file_MMX, 0);
- struct x86_reg mmx1 = make_reg(file_MMX, 1);
- sse_cvtps2pi(p, mmx0, temp);
- sse_movhlps(p, temp, temp);
- sse_cvtps2pi(p, mmx1, temp);
- mmx_packssdw(p, mmx0, mmx1);
- mmx_packuswb(p, mmx0, mmx0);
- mmx_movd(p, dest, mmx0);
+ struct x86_reg mmx0 = x86_make_reg(file_MMX, 0);
+ struct x86_reg mmx1 = x86_make_reg(file_MMX, 1);
+ sse_cvtps2pi(&p->func, mmx0, temp);
+ sse_movhlps(&p->func, temp, temp);
+ sse_cvtps2pi(&p->func, mmx1, temp);
+ mmx_packssdw(&p->func, mmx0, mmx1);
+ mmx_packuswb(&p->func, mmx0, mmx0);
+ mmx_movd(&p->func, dest, mmx0);
}
}
return (const char *)b - (const char *)a;
}
+/* Not much happens here. Eventually use this function to try and
+ * avoid saving/reloading the source pointers each vertex (if some of
+ * them can fit in registers).
+ */
+static void get_src_ptr( struct x86_program *p,
+ struct x86_reg srcREG,
+ struct x86_reg vtxREG,
+ struct tnl_clipspace_attr *a )
+{
+ struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx);
+ struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr));
+
+ /* Load current a[j].inputptr
+ */
+ x86_mov(&p->func, srcREG, ptr_to_src);
+}
+
+static void update_src_ptr( struct x86_program *p,
+ struct x86_reg srcREG,
+ struct x86_reg vtxREG,
+ struct tnl_clipspace_attr *a )
+{
+ if (a->inputstride) {
+ struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx);
+ struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr));
+
+ /* add a[j].inputstride (hardcoded value - could just as easily
+ * pull the stride value from memory each time).
+ */
+ x86_lea(&p->func, srcREG, x86_make_disp(srcREG, a->inputstride));
+
+ /* save new value of a[j].inputptr
+ */
+ x86_mov(&p->func, ptr_to_src, srcREG);
+ }
+}
/* Lots of hardcoding
*/
static GLboolean build_vertex_emit( struct x86_program *p )
{
- GLcontext *ctx = p->ctx;
+ struct gl_context *ctx = p->ctx;
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- struct tnl_clipspace_attr *a = vtx->attr;
- GLuint j;
-
- struct x86_reg vertexEAX = make_reg(file_REG32, reg_AX);
- struct x86_reg srcEDI = make_reg(file_REG32, reg_CX);
- struct x86_reg countEBP = make_reg(file_REG32, reg_BP);
- struct x86_reg vtxESI = make_reg(file_REG32, reg_SI);
- struct x86_reg temp = make_reg(file_XMM, 0);
- struct x86_reg vp0 = make_reg(file_XMM, 1);
- struct x86_reg vp1 = make_reg(file_XMM, 2);
- struct x86_reg chan0 = make_reg(file_XMM, 3);
+ GLuint j = 0;
+
+ struct x86_reg vertexEAX = x86_make_reg(file_REG32, reg_AX);
+ struct x86_reg srcECX = x86_make_reg(file_REG32, reg_CX);
+ struct x86_reg countEBP = x86_make_reg(file_REG32, reg_BP);
+ struct x86_reg vtxESI = x86_make_reg(file_REG32, reg_SI);
+ struct x86_reg temp = x86_make_reg(file_XMM, 0);
+ struct x86_reg vp0 = x86_make_reg(file_XMM, 1);
+ struct x86_reg vp1 = x86_make_reg(file_XMM, 2);
+ struct x86_reg temp2 = x86_make_reg(file_XMM, 3);
GLubyte *fixup, *label;
- p->csr = p->store;
-
/* Push a few regs?
*/
- x86_push(p, srcEDI);
- x86_push(p, countEBP);
- x86_push(p, vtxESI);
+ x86_push(&p->func, countEBP);
+ x86_push(&p->func, vtxESI);
/* Get vertex count, compare to zero
*/
- x86_xor(p, srcEDI, srcEDI);
- x86_mov(p, countEBP, make_fn_arg(p, 2));
- x86_cmp(p, countEBP, srcEDI);
- fixup = x86_jcc_forward(p, cc_E);
+ x86_xor(&p->func, srcECX, srcECX);
+ x86_mov(&p->func, countEBP, x86_fn_arg(&p->func, 2));
+ x86_cmp(&p->func, countEBP, srcECX);
+ fixup = x86_jcc_forward(&p->func, cc_E);
/* Initialize destination register.
*/
- x86_mov(p, vertexEAX, make_fn_arg(p, 3));
+ x86_mov(&p->func, vertexEAX, x86_fn_arg(&p->func, 3));
/* Dereference ctx to get tnl, then vtx:
*/
- x86_mov(p, vtxESI, make_fn_arg(p, 1));
- x86_mov(p, vtxESI, make_disp(vtxESI, get_offset(ctx, &ctx->swtnl_context)));
- vtxESI = make_disp(vtxESI, get_offset(tnl, &tnl->clipspace));
+ x86_mov(&p->func, vtxESI, x86_fn_arg(&p->func, 1));
+ x86_mov(&p->func, vtxESI, x86_make_disp(vtxESI, get_offset(ctx, &ctx->swtnl_context)));
+ vtxESI = x86_make_disp(vtxESI, get_offset(tnl, &tnl->clipspace));
/* Possibly load vp0, vp1 for viewport calcs:
*/
if (vtx->need_viewport) {
- sse_movups(p, vp0, make_disp(vtxESI, get_offset(vtx, &vtx->vp_scale[0])));
- sse_movups(p, vp1, make_disp(vtxESI, get_offset(vtx, &vtx->vp_xlate[0])));
+ sse_movups(&p->func, vp0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_scale[0])));
+ sse_movups(&p->func, vp1, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_xlate[0])));
}
/* always load, needed or not:
*/
- sse_movups(p, chan0, make_disp(vtxESI, get_offset(vtx, &vtx->chan_scale[0])));
- sse_movups(p, p->identity, make_disp(vtxESI, get_offset(vtx, &vtx->identity[0])));
+ sse_movups(&p->func, p->chan0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->chan_scale[0])));
+ sse_movups(&p->func, p->identity, x86_make_disp(vtxESI, get_offset(vtx, &vtx->identity[0])));
/* Note address for loop jump */
- label = get_label(p);
+ label = x86_get_label(&p->func);
/* Emit code for each of the attributes. Currently routes
* everything through SSE registers, even when it might be more
* other tricks - enough new ground to cover here just getting
* things working.
*/
- for (j = 0; j < vtx->attr_count; j++) {
- struct x86_reg dest = make_disp(vertexEAX, vtx->attr[j].vertoffset);
- struct x86_reg ptr_to_src = make_disp(vtxESI, get_offset(vtx, &vtx->attr[j].inputptr));
-
- /* Load current a[j].inputptr
- */
- x86_mov(p, srcEDI, ptr_to_src);
+ while (j < vtx->attr_count) {
+ struct tnl_clipspace_attr *a = &vtx->attr[j];
+ struct x86_reg dest = x86_make_disp(vertexEAX, a->vertoffset);
/* Now, load an XMM reg from src, perhaps transform, then save.
* Could be shortcircuited in specific cases:
*/
- switch (a[j].format) {
+ switch (a->format) {
case EMIT_1F:
- emit_load(p, temp, 1, deref(srcEDI), vtx->attr[j].inputsize);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize);
emit_store(p, dest, 1, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_2F:
- emit_load(p, temp, 2, deref(srcEDI), vtx->attr[j].inputsize);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);
emit_store(p, dest, 2, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_3F:
/* Potentially the worst case - hardcode 2+1 copying:
*/
- emit_load(p, temp, 3, deref(srcEDI), vtx->attr[j].inputsize);
- emit_store(p, dest, 3, temp);
+ if (0) {
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+ emit_store(p, dest, 3, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
+ }
+ else {
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);
+ emit_store(p, dest, 2, temp);
+ if (a->inputsize > 2) {
+ emit_load(p, temp, 1, x86_make_disp(srcECX, 8), 1);
+ emit_store(p, x86_make_disp(dest,8), 1, temp);
+ }
+ else {
+ sse_movss(&p->func, x86_make_disp(dest,8), get_identity(p));
+ }
+ update_src_ptr(p, srcECX, vtxESI, a);
+ }
break;
case EMIT_4F:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
emit_store(p, dest, 4, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_2F_VIEWPORT:
- emit_load(p, temp, 2, deref(srcEDI), vtx->attr[j].inputsize);
- sse_mulps(p, temp, vp0);
- sse_addps(p, temp, vp1);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);
+ sse_mulps(&p->func, temp, vp0);
+ sse_addps(&p->func, temp, vp1);
emit_store(p, dest, 2, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_3F_VIEWPORT:
- emit_load(p, temp, 3, deref(srcEDI), vtx->attr[j].inputsize);
- sse_mulps(p, temp, vp0);
- sse_addps(p, temp, vp1);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+ sse_mulps(&p->func, temp, vp0);
+ sse_addps(&p->func, temp, vp1);
emit_store(p, dest, 3, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_4F_VIEWPORT:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_mulps(p, temp, vp0);
- sse_addps(p, temp, vp1);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+ sse_mulps(&p->func, temp, vp0);
+ sse_addps(&p->func, temp, vp1);
emit_store(p, dest, 4, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_3F_XYW:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_shufps(p, temp, temp, X, Y, W, Z);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+ sse_shufps(&p->func, temp, temp, SHUF(X,Y,W,Z));
emit_store(p, dest, 3, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
- /* Try and bond 3ub + 1ub pairs into a single 4ub operation?
- */
case EMIT_1UB_1F:
+ /* Test for PAD3 + 1UB:
+ */
+ if (j > 0 &&
+ a[-1].vertoffset + a[-1].vertattrsize <= a->vertoffset - 3)
+ {
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize);
+ sse_shufps(&p->func, temp, temp, SHUF(X,X,X,X));
+ emit_pack_store_4ub(p, x86_make_disp(dest, -3), temp); /* overkill! */
+ update_src_ptr(p, srcECX, vtxESI, a);
+ }
+ else {
+ printf("Can't emit 1ub %x %x %d\n", a->vertoffset, a[-1].vertoffset, a[-1].vertattrsize );
+ return GL_FALSE;
+ }
+ break;
case EMIT_3UB_3F_RGB:
case EMIT_3UB_3F_BGR:
- _mesa_printf("non-implemneted format %d\n", a[j].format);
- return GL_FALSE; /* add this later */
+ /* Test for 3UB + PAD1:
+ */
+ if (j == vtx->attr_count - 1 ||
+ a[1].vertoffset >= a->vertoffset + 4) {
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+ if (a->format == EMIT_3UB_3F_BGR)
+ sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W));
+ emit_pack_store_4ub(p, dest, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
+ }
+ /* Test for 3UB + 1UB:
+ */
+ else if (j < vtx->attr_count - 1 &&
+ a[1].format == EMIT_1UB_1F &&
+ a[1].vertoffset == a->vertoffset + 3) {
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+ update_src_ptr(p, srcECX, vtxESI, a);
+
+ /* Make room for incoming value:
+ */
+ sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z));
+
+ get_src_ptr(p, srcECX, vtxESI, &a[1]);
+ emit_load(p, temp2, 1, x86_deref(srcECX), a[1].inputsize);
+ sse_movss(&p->func, temp, temp2);
+ update_src_ptr(p, srcECX, vtxESI, &a[1]);
+
+ /* Rearrange and possibly do BGR conversion:
+ */
+ if (a->format == EMIT_3UB_3F_BGR)
+ sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X));
+ else
+ sse_shufps(&p->func, temp, temp, SHUF(Y,Z,W,X));
+
+ emit_pack_store_4ub(p, dest, temp);
+ j++; /* NOTE: two attrs consumed */
+ }
+ else {
+ printf("Can't emit 3ub\n");
+ return GL_FALSE; /* add this later */
+ }
+ break;
case EMIT_4UB_4F_RGBA:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_mulps(p, temp, chan0);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
emit_pack_store_4ub(p, dest, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_4UB_4F_BGRA:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_shufps(p, temp, temp, Z, Y, X, W);
- sse_mulps(p, temp, chan0);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+ sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W));
emit_pack_store_4ub(p, dest, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_4UB_4F_ARGB:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_shufps(p, temp, temp, W, X, Y, Z);
- sse_mulps(p, temp, chan0);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+ sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z));
emit_pack_store_4ub(p, dest, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_4UB_4F_ABGR:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_shufps(p, temp, temp, W, Z, Y, X);
- sse_mulps(p, temp, chan0);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+ sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X));
emit_pack_store_4ub(p, dest, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case EMIT_4CHAN_4F_RGBA:
switch (CHAN_TYPE) {
case GL_UNSIGNED_BYTE:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
- sse_mulps(p, temp, chan0);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
emit_pack_store_4ub(p, dest, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case GL_FLOAT:
- emit_load(p, temp, 4, deref(srcEDI), vtx->attr[j].inputsize);
+ get_src_ptr(p, srcECX, vtxESI, a);
+ emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
emit_store(p, dest, 4, temp);
+ update_src_ptr(p, srcECX, vtxESI, a);
break;
case GL_UNSIGNED_SHORT:
default:
- _mesa_printf("unknown CHAN_TYPE %s\n", _mesa_lookup_enum_by_nr(CHAN_TYPE));
+ printf("unknown CHAN_TYPE %s\n", _mesa_lookup_enum_by_nr(CHAN_TYPE));
return GL_FALSE;
}
break;
default:
- _mesa_printf("unknown a[%d].format %d\n", j, a[j].format);
+ printf("unknown a[%d].format %d\n", j, a->format);
return GL_FALSE; /* catch any new opcodes */
}
- /* add a[j].inputstride (hardcoded value - could just as easily
- * pull the stride value from memory each time).
+ /* Increment j by at least 1 - may have been incremented above also:
*/
- x86_lea(p, srcEDI, make_disp(srcEDI, a[j].inputstride));
-
- /* save new value of a[j].inputptr
- */
- x86_mov(p, ptr_to_src, srcEDI);
-
+ j++;
}
/* Next vertex:
*/
- x86_lea(p, vertexEAX, make_disp(vertexEAX, vtx->vertex_size));
+ x86_lea(&p->func, vertexEAX, x86_make_disp(vertexEAX, vtx->vertex_size));
/* decr count, loop if not zero
*/
- x86_dec(p, countEBP);
- x86_test(p, countEBP, countEBP);
- x86_jcc(p, cc_NZ, label);
+ x86_dec(&p->func, countEBP);
+ x86_test(&p->func, countEBP, countEBP);
+ x86_jcc(&p->func, cc_NZ, label);
/* Exit mmx state?
*/
- if (p->need_emms)
- mmx_emms(p);
+ if (p->func.need_emms)
+ mmx_emms(&p->func);
/* Land forward jump here:
*/
- do_fixup(p, fixup);
+ x86_fixup_fwd_jump(&p->func, fixup);
/* Pop regs and return
*/
- x86_pop(p, get_base_reg(vtxESI));
- x86_pop(p, countEBP);
- x86_pop(p, srcEDI);
- x86_ret(p);
+ x86_pop(&p->func, x86_get_base_reg(vtxESI));
+ x86_pop(&p->func, countEBP);
+ x86_ret(&p->func);
+
+ assert(!vtx->emit);
+ vtx->emit = (tnl_emit_func)x86_get_func(&p->func);
- vtx->emit = (tnl_emit_func)p->store;
+ assert( (char *) p->func.csr - (char *) p->func.store <= MAX_SSE_CODE_SIZE );
return GL_TRUE;
}
-void _tnl_generate_sse_emit( GLcontext *ctx )
+
+
+void _tnl_generate_sse_emit( struct gl_context *ctx )
{
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- struct x86_program p;
+ struct x86_program p;
+
+ if (!cpu_has_xmm) {
+ vtx->codegen_emit = NULL;
+ return;
+ }
memset(&p, 0, sizeof(p));
+
p.ctx = ctx;
- p.store = MALLOC(1024);
+ p.inputs_safe = 0; /* for now */
+ p.outputs_safe = 0; /* for now */
+ p.have_sse2 = cpu_has_xmm2;
+ p.identity = x86_make_reg(file_XMM, 6);
+ p.chan0 = x86_make_reg(file_XMM, 7);
+
+ if (!x86_init_func_size(&p.func, MAX_SSE_CODE_SIZE)) {
+ vtx->emit = NULL;
+ return;
+ }
- p.inputs_safe = 1; /* for now */
- p.outputs_safe = 1; /* for now */
- p.have_sse2 = 0; /* testing */
- p.identity = make_reg(file_XMM, 6);
-
if (build_vertex_emit(&p)) {
_tnl_register_fastpath( vtx, GL_TRUE );
- if (DISASSEM)
- _mesa_printf("disassemble 0x%x 0x%x\n", p.store, p.csr);
}
else {
- /* Note the failure:
+ /* Note the failure so that we don't keep trying to codegen an
+ * impossible state:
*/
_tnl_register_fastpath( vtx, GL_FALSE );
- FREE(p.store);
+ x86_release_func(&p.func);
}
+}
- (void)sse2_movd;
- (void)x86_inc;
- (void)x86_xor;
+#else
+
+void _tnl_generate_sse_emit( struct gl_context *ctx )
+{
+ /* Dummy version for when USE_SSE_ASM not defined */
}
+
+#endif
projects / mesa.git / blobdiff