--- /dev/null
+/*
+ * Copyright 2003 Tungsten Graphics, inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * TUNGSTEN GRAPHICS AND/OR 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>
+ */
+
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_util.h"
+#include "util/u_simple_list.h"
+
+#include "translate.h"
+
+
+#if defined(__i386__) || defined(__386__) || defined(i386)
+
+#include "rtasm/rtasm_cpu.h"
+#include "rtasm/rtasm_x86sse.h"
+
+
+#define X 0
+#define Y 1
+#define Z 2
+#define W 3
+
+
+typedef void (*run_func)( struct translate *translate,
+ unsigned start,
+ unsigned count,
+ void *output_buffer );
+
+typedef void (*run_elts_func)( struct translate *translate,
+ const unsigned *elts,
+ unsigned count,
+ void *output_buffer );
+
+
+
+struct translate_sse {
+ struct translate translate;
+
+ struct x86_function linear_func;
+ struct x86_function elt_func;
+ struct x86_function *func;
+
+ boolean loaded_identity;
+ boolean loaded_255;
+ boolean loaded_inv_255;
+
+ float identity[4];
+ float float_255[4];
+ float inv_255[4];
+
+ struct {
+ char *input_ptr;
+ unsigned input_stride;
+ } attrib[PIPE_MAX_ATTRIBS];
+
+ run_func gen_run;
+ run_elts_func gen_run_elts;
+
+};
+
+static int get_offset( const void *a, const void *b )
+{
+ return (const char *)b - (const char *)a;
+}
+
+
+
+static struct x86_reg get_identity( struct translate_sse *p )
+{
+ struct x86_reg reg = x86_make_reg(file_XMM, 6);
+
+ if (!p->loaded_identity) {
+ /* Nasty:
+ */
+ struct x86_reg translateESI = x86_make_reg(file_REG32, reg_SI);
+
+ p->loaded_identity = TRUE;
+ p->identity[0] = 0;
+ p->identity[1] = 0;
+ p->identity[2] = 0;
+ p->identity[3] = 1;
+
+ sse_movups(p->func, reg,
+ x86_make_disp(translateESI,
+ get_offset(p, &p->identity[0])));
+ }
+
+ return reg;
+}
+
+static struct x86_reg get_255( struct translate_sse *p )
+{
+ struct x86_reg reg = x86_make_reg(file_XMM, 6);
+
+ if (!p->loaded_255) {
+ struct x86_reg translateESI = x86_make_reg(file_REG32, reg_SI);
+
+ p->loaded_255 = TRUE;
+ p->float_255[0] =
+ p->float_255[1] =
+ p->float_255[2] =
+ p->float_255[3] = 255.0f;
+
+ sse_movups(p->func, reg,
+ x86_make_disp(translateESI,
+ get_offset(p, &p->float_255[0])));
+ }
+
+ return reg;
+ return x86_make_reg(file_XMM, 7);
+}
+
+static struct x86_reg get_inv_255( struct translate_sse *p )
+{
+ struct x86_reg reg = x86_make_reg(file_XMM, 5);
+
+ if (!p->loaded_inv_255) {
+ struct x86_reg translateESI = x86_make_reg(file_REG32, reg_SI);
+
+ p->loaded_inv_255 = TRUE;
+ p->inv_255[0] =
+ p->inv_255[1] =
+ p->inv_255[2] =
+ p->inv_255[3] = 1.0 / 255.0f;
+
+ sse_movups(p->func, reg,
+ x86_make_disp(translateESI,
+ get_offset(p, &p->inv_255[0])));
+ }
+
+ return reg;
+}
+
+
+static void emit_load_R32G32B32A32( struct translate_sse *p,
+ struct x86_reg data,
+ struct x86_reg arg0 )
+{
+ sse_movups(p->func, data, arg0);
+}
+
+static void emit_load_R32G32B32( struct translate_sse *p,
+ struct x86_reg data,
+ struct x86_reg arg0 )
+{
+ /* Have to jump through some hoops:
+ *
+ * c 0 0 0
+ * c 0 0 1
+ * 0 0 c 1
+ * a b c 1
+ */
+ sse_movss(p->func, data, x86_make_disp(arg0, 8));
+ sse_shufps(p->func, data, get_identity(p), SHUF(X,Y,Z,W) );
+ sse_shufps(p->func, data, data, SHUF(Y,Z,X,W) );
+ sse_movlps(p->func, data, arg0);
+}
+
+static void emit_load_R32G32( struct translate_sse *p,
+ struct x86_reg data,
+ struct x86_reg arg0 )
+{
+ /* 0 0 0 1
+ * a b 0 1
+ */
+ sse_movups(p->func, data, get_identity(p) );
+ sse_movlps(p->func, data, arg0);
+}
+
+
+static void emit_load_R32( struct translate_sse *p,
+ struct x86_reg data,
+ struct x86_reg arg0 )
+{
+ /* a 0 0 0
+ * a 0 0 1
+ */
+ sse_movss(p->func, data, arg0);
+ sse_orps(p->func, data, get_identity(p) );
+}
+
+
+static void emit_load_R8G8B8A8_UNORM( struct translate_sse *p,
+ struct x86_reg data,
+ struct x86_reg src )
+{
+
+ /* Load and unpack twice:
+ */
+ sse_movss(p->func, data, src);
+ sse2_punpcklbw(p->func, src, get_identity(p));
+ sse2_punpcklbw(p->func, src, get_identity(p));
+
+ /* Convert to float:
+ */
+ sse2_cvtdq2ps(p->func, src, src);
+
+
+ /* Scale by 1/255.0
+ */
+ sse_mulps(p->func, src, get_inv_255(p));
+}
+
+
+
+
+static void emit_store_R32G32B32A32( struct translate_sse *p,
+ struct x86_reg dest,
+ struct x86_reg dataXMM )
+{
+ sse_movups(p->func, dest, dataXMM);
+}
+
+static void emit_store_R32G32B32( struct translate_sse *p,
+ struct x86_reg dest,
+ struct x86_reg dataXMM )
+{
+ /* Emit two, shuffle, emit one.
+ */
+ sse_movlps(p->func, dest, dataXMM);
+ sse_shufps(p->func, dataXMM, dataXMM, SHUF(Z,Z,Z,Z) ); /* NOTE! destructive */
+ sse_movss(p->func, x86_make_disp(dest,8), dataXMM);
+}
+
+static void emit_store_R32G32( struct translate_sse *p,
+ struct x86_reg dest,
+ struct x86_reg dataXMM )
+{
+ sse_movlps(p->func, dest, dataXMM);
+}
+
+static void emit_store_R32( struct translate_sse *p,
+ struct x86_reg dest,
+ struct x86_reg dataXMM )
+{
+ sse_movss(p->func, dest, dataXMM);
+}
+
+
+
+static void emit_store_R8G8B8A8_UNORM( struct translate_sse *p,
+ struct x86_reg dest,
+ struct x86_reg dataXMM )
+{
+ /* Scale by 255.0
+ */
+ sse_mulps(p->func, dataXMM, get_255(p));
+
+ /* Pack and emit:
+ */
+ sse2_cvtps2dq(p->func, dataXMM, dataXMM);
+ sse2_packssdw(p->func, dataXMM, dataXMM);
+ sse2_packuswb(p->func, dataXMM, dataXMM);
+ sse_movss(p->func, dest, dataXMM);
+}
+
+
+
+
+
+static void get_src_ptr( struct translate_sse *p,
+ struct x86_reg srcEAX,
+ struct x86_reg translateREG,
+ struct x86_reg eltREG,
+ unsigned a )
+{
+ struct x86_reg input_ptr =
+ x86_make_disp(translateREG,
+ get_offset(p, &p->attrib[a].input_ptr));
+
+ struct x86_reg input_stride =
+ x86_make_disp(translateREG,
+ get_offset(p, &p->attrib[a].input_stride));
+
+ /* Calculate pointer to current attrib:
+ */
+ x86_mov(p->func, srcEAX, input_stride);
+ x86_imul(p->func, srcEAX, eltREG);
+ x86_add(p->func, srcEAX, input_ptr);
+}
+
+
+/* Extended swizzles? Maybe later.
+ */
+static void emit_swizzle( struct translate_sse *p,
+ struct x86_reg dest,
+ struct x86_reg src,
+ unsigned shuffle )
+{
+ sse_shufps(p->func, dest, src, shuffle);
+}
+
+
+static boolean translate_attr( struct translate_sse *p,
+ const struct translate_element *a,
+ struct x86_reg srcECX,
+ struct x86_reg dstEAX)
+{
+ struct x86_reg dataXMM = x86_make_reg(file_XMM, 0);
+
+ switch (a->input_format) {
+ case PIPE_FORMAT_R32_FLOAT:
+ emit_load_R32(p, dataXMM, srcECX);
+ break;
+ case PIPE_FORMAT_R32G32_FLOAT:
+ emit_load_R32G32(p, dataXMM, srcECX);
+ break;
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ emit_load_R32G32B32(p, dataXMM, srcECX);
+ break;
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ emit_load_R32G32B32A32(p, dataXMM, srcECX);
+ break;
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ emit_load_R8G8B8A8_UNORM(p, dataXMM, srcECX);
+ emit_swizzle(p, dataXMM, dataXMM, SHUF(Z,Y,X,W));
+ break;
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ emit_load_R8G8B8A8_UNORM(p, dataXMM, srcECX);
+ break;
+ default:
+ return FALSE;
+ }
+
+ switch (a->output_format) {
+ case PIPE_FORMAT_R32_FLOAT:
+ emit_store_R32(p, dstEAX, dataXMM);
+ break;
+ case PIPE_FORMAT_R32G32_FLOAT:
+ emit_store_R32G32(p, dstEAX, dataXMM);
+ break;
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ emit_store_R32G32B32(p, dstEAX, dataXMM);
+ break;
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ emit_store_R32G32B32A32(p, dstEAX, dataXMM);
+ break;
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ emit_swizzle(p, dataXMM, dataXMM, SHUF(Z,Y,X,W));
+ emit_store_R8G8B8A8_UNORM(p, dstEAX, dataXMM);
+ break;
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ emit_store_R8G8B8A8_UNORM(p, dstEAX, dataXMM);
+ break;
+ default:
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Build run( struct translate *translate,
+ * unsigned start,
+ * unsigned count,
+ * void *output_buffer )
+ * or
+ * run_elts( struct translate *translate,
+ * unsigned *elts,
+ * unsigned count,
+ * void *output_buffer )
+ *
+ * Lots of hardcoding
+ *
+ * EAX -- pointer to current output vertex
+ * ECX -- pointer to current attribute
+ *
+ */
+static boolean build_vertex_emit( struct translate_sse *p,
+ struct x86_function *func,
+ boolean linear )
+{
+ struct x86_reg vertexECX = x86_make_reg(file_REG32, reg_AX);
+ struct x86_reg idxEBX = x86_make_reg(file_REG32, reg_BX);
+ struct x86_reg srcEAX = x86_make_reg(file_REG32, reg_CX);
+ struct x86_reg countEBP = x86_make_reg(file_REG32, reg_BP);
+ struct x86_reg translateESI = x86_make_reg(file_REG32, reg_SI);
+ uint8_t *fixup, *label;
+ unsigned j;
+
+ p->func = func;
+ p->loaded_inv_255 = FALSE;
+ p->loaded_255 = FALSE;
+ p->loaded_identity = FALSE;
+
+ x86_init_func(p->func);
+
+ /* Push a few regs?
+ */
+ x86_push(p->func, countEBP);
+ x86_push(p->func, translateESI);
+ x86_push(p->func, idxEBX);
+
+ /* Get vertex count, compare to zero
+ */
+ x86_xor(p->func, idxEBX, idxEBX);
+ x86_mov(p->func, countEBP, x86_fn_arg(p->func, 3));
+ x86_cmp(p->func, countEBP, idxEBX);
+ fixup = x86_jcc_forward(p->func, cc_E);
+
+ /* If linear, idx is the current element, otherwise it is a pointer
+ * to the current element.
+ */
+ x86_mov(p->func, idxEBX, x86_fn_arg(p->func, 2));
+
+ /* Initialize destination register.
+ */
+ x86_mov(p->func, vertexECX, x86_fn_arg(p->func, 4));
+
+ /* Move argument 1 (translate_sse pointer) into a reg:
+ */
+ x86_mov(p->func, translateESI, x86_fn_arg(p->func, 1));
+
+
+ /* always load, needed or not:
+ */
+
+ /* Note address for loop jump */
+ label = x86_get_label(p->func);
+
+
+ for (j = 0; j < p->translate.key.nr_elements; j++) {
+ const struct translate_element *a = &p->translate.key.element[j];
+
+ struct x86_reg destEAX = x86_make_disp(vertexECX,
+ a->output_offset);
+
+ /* Figure out source pointer address:
+ */
+ if (linear) {
+ get_src_ptr(p, srcEAX, translateESI, idxEBX, j);
+ }
+ else {
+ get_src_ptr(p, srcEAX, translateESI, x86_deref(idxEBX), j);
+ }
+
+ if (!translate_attr( p, a, x86_deref(srcEAX), destEAX ))
+ return FALSE;
+ }
+
+ /* Next vertex:
+ */
+ x86_lea(p->func, vertexECX, x86_make_disp(vertexECX, p->translate.key.output_stride));
+
+ /* Incr index
+ */ /* Emit code for each of the attributes. Currently routes
+ * everything through SSE registers, even when it might be more
+ * efficient to stick with regular old x86. No optimization or
+ * other tricks - enough new ground to cover here just getting
+ * things working.
+ */
+
+ if (linear) {
+ x86_inc(p->func, idxEBX);
+ }
+ else {
+ x86_lea(p->func, idxEBX, x86_make_disp(idxEBX, 4));
+ }
+
+ /* decr count, loop if not zero
+ */
+ x86_dec(p->func, countEBP);
+ x86_test(p->func, countEBP, countEBP);
+ x86_jcc(p->func, cc_NZ, label);
+
+ /* Exit mmx state?
+ */
+ if (p->func->need_emms)
+ mmx_emms(p->func);
+
+ /* Land forward jump here:
+ */
+ x86_fixup_fwd_jump(p->func, fixup);
+
+ /* Pop regs and return
+ */
+
+ x86_pop(p->func, idxEBX);
+ x86_pop(p->func, translateESI);
+ x86_pop(p->func, countEBP);
+ x86_ret(p->func);
+
+ return TRUE;
+}
+
+
+
+
+
+
+
+static void translate_sse_set_buffer( struct translate *translate,
+ unsigned buf,
+ const void *ptr,
+ unsigned stride )
+{
+ struct translate_sse *p = (struct translate_sse *)translate;
+ unsigned i;
+
+ for (i = 0; i < p->translate.key.nr_elements; i++) {
+ if (p->translate.key.element[i].input_buffer == buf) {
+ p->attrib[i].input_ptr = ((char *)ptr +
+ p->translate.key.element[i].input_offset);
+ p->attrib[i].input_stride = stride;
+ }
+ }
+}
+
+
+static void translate_sse_release( struct translate *translate )
+{
+ struct translate_sse *p = (struct translate_sse *)translate;
+
+ x86_release_func( &p->linear_func );
+ x86_release_func( &p->elt_func );
+
+ FREE(p);
+}
+
+static void translate_sse_run_elts( struct translate *translate,
+ const unsigned *elts,
+ unsigned count,
+ void *output_buffer )
+{
+ struct translate_sse *p = (struct translate_sse *)translate;
+
+ p->gen_run_elts( translate,
+ elts,
+ count,
+ output_buffer );
+
+}
+
+static void translate_sse_run( struct translate *translate,
+ unsigned start,
+ unsigned count,
+ void *output_buffer )
+{
+ struct translate_sse *p = (struct translate_sse *)translate;
+
+ p->gen_run( translate,
+ start,
+ count,
+ output_buffer );
+}
+
+
+struct translate *translate_sse2_create( const struct translate_key *key )
+{
+ struct translate_sse *p = CALLOC_STRUCT( translate_sse );
+
+ if (p == NULL)
+ goto fail;
+
+ if (!rtasm_cpu_has_sse() || !rtasm_cpu_has_sse2())
+ goto fail;
+
+
+ p->translate.key = *key;
+ p->translate.release = translate_sse_release;
+ p->translate.set_buffer = translate_sse_set_buffer;
+ p->translate.run_elts = translate_sse_run_elts;
+ p->translate.run = translate_sse_run;
+
+ if (!build_vertex_emit(p, &p->linear_func, TRUE))
+ goto fail;
+
+ if (!build_vertex_emit(p, &p->elt_func, FALSE))
+ goto fail;
+
+ p->gen_run = (run_func)x86_get_func(&p->linear_func);
+ p->gen_run_elts = (run_elts_func)x86_get_func(&p->elt_func);
+
+ return &p->translate;
+
+ fail:
+ if (p)
+ p->translate.release( &p->translate );
+
+ return NULL;
+}
+
+
+
+#else
+
+void translate_create_sse( const struct translate_key *key )
+{
+ return NULL;
+}
+
+#endif
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