/**************************************************************************
*
- * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007-2008 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 ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
#include "pipe/p_shader_tokens.h"
#include "pipe/p_state.h"
#include "tgsi/tgsi_ureg.h"
#include "st_mesa_to_tgsi.h"
-#include "shader/prog_instruction.h"
-#include "shader/prog_parameter.h"
-#include "shader/prog_print.h"
+#include "st_context.h"
+#include "program/prog_instruction.h"
+#include "program/prog_parameter.h"
#include "util/u_debug.h"
#include "util/u_math.h"
#include "util/u_memory.h"
+#include "st_glsl_to_tgsi.h" /* for _mesa_sysval_to_semantic */
+
+
+#define PROGRAM_ANY_CONST ((1 << PROGRAM_STATE_VAR) | \
+ (1 << PROGRAM_CONSTANT) | \
+ (1 << PROGRAM_UNIFORM))
+
struct label {
unsigned branch_target;
unsigned token;
};
+
+/**
+ * Intermediate state used during shader translation.
+ */
struct st_translate {
struct ureg_program *ureg;
struct ureg_src inputs[PIPE_MAX_SHADER_INPUTS];
struct ureg_dst address[1];
struct ureg_src samplers[PIPE_MAX_SAMPLERS];
- struct ureg_dst psizregreal;
- struct ureg_src pointSizeConst;
- GLint psizoutindex;
- GLboolean prevInstWrotePsiz;
+ struct ureg_src systemValues[SYSTEM_VALUE_MAX];
const GLuint *inputMapping;
const GLuint *outputMapping;
};
+/**
+ * Make note of a branch to a label in the TGSI code.
+ * After we've emitted all instructions, we'll go over the list
+ * of labels built here and patch the TGSI code with the actual
+ * location of each label.
+ */
static unsigned *get_label( struct st_translate *t,
unsigned branch_target )
{
unsigned i;
if (t->labels_count + 1 >= t->labels_size) {
- unsigned old_size = t->labels_size;
t->labels_size = 1 << (util_logbase2(t->labels_size) + 1);
- t->labels = REALLOC( t->labels,
- old_size * sizeof t->labels[0],
- t->labels_size * sizeof t->labels[0] );
+ t->labels = realloc(t->labels, t->labels_size * sizeof t->labels[0]);
if (t->labels == NULL) {
static unsigned dummy;
t->error = TRUE;
}
+/**
+ * Called prior to emitting the TGSI code for each Mesa instruction.
+ * Allocate additional space for instructions if needed.
+ * Update the insn[] array so the next Mesa instruction points to
+ * the next TGSI instruction.
+ */
static void set_insn_start( struct st_translate *t,
unsigned start )
{
if (t->insn_count + 1 >= t->insn_size) {
- unsigned old_size = t->insn_size;
t->insn_size = 1 << (util_logbase2(t->insn_size) + 1);
- t->insn = REALLOC( t->insn,
- old_size * sizeof t->insn[0],
- t->insn_size * sizeof t->insn[0] );
+ t->insn = realloc(t->insn, t->insn_size * sizeof t->insn[0]);
if (t->insn == NULL) {
t->error = TRUE;
return;
}
-/*
- * Map mesa register file to TGSI register file.
+/**
+ * Map a Mesa dst register to a TGSI ureg_dst register.
*/
static struct ureg_dst
dst_register( struct st_translate *t,
return t->temps[index];
case PROGRAM_OUTPUT:
- if (index == t->psizoutindex)
- t->prevInstWrotePsiz = GL_TRUE;
+ if (t->procType == TGSI_PROCESSOR_VERTEX)
+ assert(index < VARYING_SLOT_MAX);
+ else if (t->procType == TGSI_PROCESSOR_FRAGMENT)
+ assert(index < FRAG_RESULT_MAX);
+ else
+ assert(index < VARYING_SLOT_MAX);
+
+ assert(t->outputMapping[index] < Elements(t->outputs));
+
return t->outputs[t->outputMapping[index]];
case PROGRAM_ADDRESS:
}
+/**
+ * Map a Mesa src register to a TGSI ureg_src register.
+ */
static struct ureg_src
src_register( struct st_translate *t,
gl_register_file file,
return ureg_src_undef();
case PROGRAM_TEMPORARY:
- ASSERT(index >= 0);
+ assert(index >= 0);
+ assert(index < Elements(t->temps));
if (ureg_dst_is_undef(t->temps[index]))
t->temps[index] = ureg_DECL_temporary( t->ureg );
return ureg_src(t->temps[index]);
- case PROGRAM_STATE_VAR:
- case PROGRAM_NAMED_PARAM:
- case PROGRAM_ENV_PARAM:
- case PROGRAM_LOCAL_PARAM:
case PROGRAM_UNIFORM:
- ASSERT(index >= 0);
+ assert(index >= 0);
return t->constants[index];
+ case PROGRAM_STATE_VAR:
case PROGRAM_CONSTANT: /* ie, immediate */
if (index < 0)
return ureg_DECL_constant( t->ureg, 0 );
return t->constants[index];
case PROGRAM_INPUT:
+ assert(t->inputMapping[index] < Elements(t->inputs));
return t->inputs[t->inputMapping[index]];
case PROGRAM_OUTPUT:
+ assert(t->outputMapping[index] < Elements(t->outputs));
return ureg_src(t->outputs[t->outputMapping[index]]); /* not needed? */
case PROGRAM_ADDRESS:
return ureg_src(t->address[index]);
+ case PROGRAM_SYSTEM_VALUE:
+ assert(index < Elements(t->systemValues));
+ return t->systemValues[index];
+
default:
debug_assert( 0 );
return ureg_src_undef();
/**
* Map mesa texture target to TGSI texture target.
*/
-static unsigned
-translate_texture_target( GLuint textarget,
+unsigned
+st_translate_texture_target( GLuint textarget,
GLboolean shadow )
{
if (shadow) {
case TEXTURE_1D_INDEX: return TGSI_TEXTURE_SHADOW1D;
case TEXTURE_2D_INDEX: return TGSI_TEXTURE_SHADOW2D;
case TEXTURE_RECT_INDEX: return TGSI_TEXTURE_SHADOWRECT;
+ case TEXTURE_1D_ARRAY_INDEX: return TGSI_TEXTURE_SHADOW1D_ARRAY;
+ case TEXTURE_2D_ARRAY_INDEX: return TGSI_TEXTURE_SHADOW2D_ARRAY;
+ case TEXTURE_CUBE_INDEX: return TGSI_TEXTURE_SHADOWCUBE;
+ case TEXTURE_CUBE_ARRAY_INDEX: return TGSI_TEXTURE_SHADOWCUBE_ARRAY;
default: break;
}
}
switch( textarget ) {
+ case TEXTURE_2D_MULTISAMPLE_INDEX: return TGSI_TEXTURE_2D_MSAA;
+ case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX: return TGSI_TEXTURE_2D_ARRAY_MSAA;
+ case TEXTURE_BUFFER_INDEX: return TGSI_TEXTURE_BUFFER;
case TEXTURE_1D_INDEX: return TGSI_TEXTURE_1D;
case TEXTURE_2D_INDEX: return TGSI_TEXTURE_2D;
case TEXTURE_3D_INDEX: return TGSI_TEXTURE_3D;
case TEXTURE_CUBE_INDEX: return TGSI_TEXTURE_CUBE;
+ case TEXTURE_CUBE_ARRAY_INDEX: return TGSI_TEXTURE_CUBE_ARRAY;
case TEXTURE_RECT_INDEX: return TGSI_TEXTURE_RECT;
+ case TEXTURE_1D_ARRAY_INDEX: return TGSI_TEXTURE_1D_ARRAY;
+ case TEXTURE_2D_ARRAY_INDEX: return TGSI_TEXTURE_2D_ARRAY;
+ case TEXTURE_EXTERNAL_INDEX: return TGSI_TEXTURE_2D;
default:
debug_assert( 0 );
return TGSI_TEXTURE_1D;
}
+/**
+ * Create a TGSI ureg_dst register from a Mesa dest register.
+ */
static struct ureg_dst
translate_dst( struct st_translate *t,
const struct prog_dst_register *DstReg,
- boolean saturate )
+ boolean saturate,
+ boolean clamp_color)
{
struct ureg_dst dst = dst_register( t,
DstReg->File,
if (saturate)
dst = ureg_saturate( dst );
+ else if (clamp_color && DstReg->File == PROGRAM_OUTPUT) {
+ /* Clamp colors for ARB_color_buffer_float. */
+ switch (t->procType) {
+ case TGSI_PROCESSOR_VERTEX:
+ /* XXX if the geometry shader is present, this must be done there
+ * instead of here. */
+ if (DstReg->Index == VARYING_SLOT_COL0 ||
+ DstReg->Index == VARYING_SLOT_COL1 ||
+ DstReg->Index == VARYING_SLOT_BFC0 ||
+ DstReg->Index == VARYING_SLOT_BFC1) {
+ dst = ureg_saturate(dst);
+ }
+ break;
+
+ case TGSI_PROCESSOR_FRAGMENT:
+ if (DstReg->Index >= FRAG_RESULT_COLOR) {
+ dst = ureg_saturate(dst);
+ }
+ break;
+ }
+ }
if (DstReg->RelAddr)
dst = ureg_dst_indirect( dst, ureg_src(t->address[0]) );
}
+/**
+ * Create a TGSI ureg_src register from a Mesa src register.
+ */
static struct ureg_src
translate_src( struct st_translate *t,
const struct prog_src_register *SrcReg )
{
struct ureg_src src = src_register( t, SrcReg->File, SrcReg->Index );
+ if (t->procType == TGSI_PROCESSOR_GEOMETRY && SrcReg->HasIndex2) {
+ src = src_register( t, SrcReg->File, SrcReg->Index2 );
+ if (SrcReg->RelAddr2)
+ src = ureg_src_dimension_indirect( src, ureg_src(t->address[0]),
+ SrcReg->Index);
+ else
+ src = ureg_src_dimension( src, SrcReg->Index);
+ }
+
src = ureg_swizzle( src,
GET_SWZ( SrcReg->Swizzle, 0 ) & 0x3,
GET_SWZ( SrcReg->Swizzle, 1 ) & 0x3,
if (SrcReg->RelAddr) {
src = ureg_src_indirect( src, ureg_src(t->address[0]));
- /* If SrcReg->Index was negative, it was set to zero in
- * src_register(). Reassign it now.
- */
- src.Index = SrcReg->Index;
+ if (SrcReg->File != PROGRAM_INPUT &&
+ SrcReg->File != PROGRAM_OUTPUT) {
+ /* If SrcReg->Index was negative, it was set to zero in
+ * src_register(). Reassign it now. But don't do this
+ * for input/output regs since they get remapped while
+ * const buffers don't.
+ */
+ src.Index = SrcReg->Index;
+ }
}
return src;
return TGSI_OPCODE_BGNLOOP;
case OPCODE_BGNSUB:
return TGSI_OPCODE_BGNSUB;
- case OPCODE_BRA:
- return TGSI_OPCODE_BRA;
case OPCODE_BRK:
return TGSI_OPCODE_BRK;
case OPCODE_CAL:
return TGSI_OPCODE_DDY;
case OPCODE_DP2:
return TGSI_OPCODE_DP2;
- case OPCODE_DP2A:
- return TGSI_OPCODE_DP2A;
case OPCODE_DP3:
return TGSI_OPCODE_DP3;
case OPCODE_DP4:
case OPCODE_TRUNC:
return TGSI_OPCODE_TRUNC;
case OPCODE_KIL:
- return TGSI_OPCODE_KIL;
+ return TGSI_OPCODE_KILL_IF;
case OPCODE_KIL_NV:
- return TGSI_OPCODE_KILP;
+ /* XXX we don't support condition codes in TGSI */
+ return TGSI_OPCODE_KILL;
case OPCODE_LG2:
return TGSI_OPCODE_LG2;
case OPCODE_LOG:
return TGSI_OPCODE_MUL;
case OPCODE_NOP:
return TGSI_OPCODE_NOP;
- case OPCODE_NRM3:
- return TGSI_OPCODE_NRM;
- case OPCODE_NRM4:
- return TGSI_OPCODE_NRM4;
case OPCODE_POW:
return TGSI_OPCODE_POW;
case OPCODE_RCP:
return TGSI_OPCODE_RCP;
case OPCODE_RET:
return TGSI_OPCODE_RET;
- case OPCODE_RSQ:
- return TGSI_OPCODE_RSQ;
case OPCODE_SCS:
return TGSI_OPCODE_SCS;
case OPCODE_SEQ:
static void
compile_instruction(
+ struct gl_context *ctx,
struct st_translate *t,
- const struct prog_instruction *inst )
+ const struct prog_instruction *inst,
+ boolean clamp_dst_color_output)
{
struct ureg_program *ureg = t->ureg;
GLuint i;
- struct ureg_dst dst[1];
+ struct ureg_dst dst[1] = { { 0 } };
struct ureg_src src[4];
unsigned num_dst;
unsigned num_src;
if (num_dst)
dst[0] = translate_dst( t,
&inst->DstReg,
- inst->SaturateMode );
+ inst->SaturateMode,
+ clamp_dst_color_output);
for (i = 0; i < num_src; i++)
src[i] = translate_src( t, &inst->SrcReg[i] );
case OPCODE_CAL:
case OPCODE_ELSE:
case OPCODE_ENDLOOP:
- case OPCODE_IF:
debug_assert(num_dst == 0);
ureg_label_insn( ureg,
translate_opcode( inst->Opcode ),
get_label( t, inst->BranchTarget ));
return;
+ case OPCODE_IF:
+ debug_assert(num_dst == 0);
+ ureg_label_insn( ureg,
+ ctx->Const.NativeIntegers ? TGSI_OPCODE_UIF : TGSI_OPCODE_IF,
+ src, num_src,
+ get_label( t, inst->BranchTarget ));
+ return;
+
case OPCODE_TEX:
case OPCODE_TXB:
case OPCODE_TXD:
ureg_tex_insn( ureg,
translate_opcode( inst->Opcode ),
dst, num_dst,
- translate_texture_target( inst->TexSrcTarget,
+ st_translate_texture_target( inst->TexSrcTarget,
inst->TexShadow ),
+ NULL, 0,
src, num_src );
return;
emit_ddy( t, dst[0], &inst->SrcReg[0] );
break;
+ case OPCODE_RSQ:
+ ureg_RSQ( ureg, dst[0], ureg_abs(src[0]) );
+ break;
+
default:
ureg_insn( ureg,
translate_opcode( inst->Opcode ),
/**
- * Emit the TGSI instructions for inverting the WPOS y coordinate.
+ * Emit the TGSI instructions for inverting and adjusting WPOS.
+ * This code is unavoidable because it also depends on whether
+ * a FBO is bound (STATE_FB_WPOS_Y_TRANSFORM).
*/
static void
-emit_inverted_wpos( struct st_translate *t,
- const struct gl_program *program )
+emit_wpos_adjustment( struct st_translate *t,
+ const struct gl_program *program,
+ boolean invert,
+ GLfloat adjX, GLfloat adjY[2])
{
struct ureg_program *ureg = t->ureg;
* Need to replace instances of INPUT[WPOS] with temp T
* where T = INPUT[WPOS] by y is inverted.
*/
- static const gl_state_index winSizeState[STATE_LENGTH]
- = { STATE_INTERNAL, STATE_FB_SIZE, 0, 0, 0 };
+ static const gl_state_index wposTransformState[STATE_LENGTH]
+ = { STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM, 0, 0, 0 };
/* XXX: note we are modifying the incoming shader here! Need to
* do this before emitting the constant decls below, or this
* will be missed:
*/
- unsigned winHeightConst = _mesa_add_state_reference(program->Parameters,
- winSizeState);
+ unsigned wposTransConst = _mesa_add_state_reference(program->Parameters,
+ wposTransformState);
- struct ureg_src winsize = ureg_DECL_constant( ureg, winHeightConst );
+ struct ureg_src wpostrans = ureg_DECL_constant( ureg, wposTransConst );
struct ureg_dst wpos_temp = ureg_DECL_temporary( ureg );
- struct ureg_src wpos_input = t->inputs[t->inputMapping[FRAG_ATTRIB_WPOS]];
+ struct ureg_src wpos_input = t->inputs[t->inputMapping[VARYING_SLOT_POS]];
+
+ /* First, apply the coordinate shift: */
+ if (adjX || adjY[0] || adjY[1]) {
+ if (adjY[0] != adjY[1]) {
+ /* Adjust the y coordinate by adjY[1] or adjY[0] respectively
+ * depending on whether inversion is actually going to be applied
+ * or not, which is determined by testing against the inversion
+ * state variable used below, which will be either +1 or -1.
+ */
+ struct ureg_dst adj_temp = ureg_DECL_temporary(ureg);
+
+ ureg_CMP(ureg, adj_temp,
+ ureg_scalar(wpostrans, invert ? 2 : 0),
+ ureg_imm4f(ureg, adjX, adjY[0], 0.0f, 0.0f),
+ ureg_imm4f(ureg, adjX, adjY[1], 0.0f, 0.0f));
+ ureg_ADD(ureg, wpos_temp, wpos_input, ureg_src(adj_temp));
+ } else {
+ ureg_ADD(ureg, wpos_temp, wpos_input,
+ ureg_imm4f(ureg, adjX, adjY[0], 0.0f, 0.0f));
+ }
+ wpos_input = ureg_src(wpos_temp);
+ } else {
+ /* MOV wpos_temp, input[wpos]
+ */
+ ureg_MOV( ureg, wpos_temp, wpos_input );
+ }
- /* MOV wpos_temp, input[wpos]
+ /* Now the conditional y flip: STATE_FB_WPOS_Y_TRANSFORM.xy/zw will be
+ * inversion/identity, or the other way around if we're drawing to an FBO.
*/
- ureg_MOV( ureg, wpos_temp, wpos_input );
+ if (invert) {
+ /* MAD wpos_temp.y, wpos_input, wpostrans.xxxx, wpostrans.yyyy
+ */
+ ureg_MAD( ureg,
+ ureg_writemask(wpos_temp, TGSI_WRITEMASK_Y ),
+ wpos_input,
+ ureg_scalar(wpostrans, 0),
+ ureg_scalar(wpostrans, 1));
+ } else {
+ /* MAD wpos_temp.y, wpos_input, wpostrans.zzzz, wpostrans.wwww
+ */
+ ureg_MAD( ureg,
+ ureg_writemask(wpos_temp, TGSI_WRITEMASK_Y ),
+ wpos_input,
+ ureg_scalar(wpostrans, 2),
+ ureg_scalar(wpostrans, 3));
+ }
- /* SUB wpos_temp.y, winsize_const, wpos_input
+ /* Use wpos_temp as position input from here on:
*/
- ureg_SUB( ureg,
- ureg_writemask(wpos_temp, TGSI_WRITEMASK_Y ),
- winsize,
- wpos_input);
+ t->inputs[t->inputMapping[VARYING_SLOT_POS]] = ureg_src(wpos_temp);
+}
- /* Use wpos_temp as position input from here on:
+
+/**
+ * Emit fragment position/coordinate code.
+ */
+static void
+emit_wpos(struct st_context *st,
+ struct st_translate *t,
+ const struct gl_program *program,
+ struct ureg_program *ureg)
+{
+ const struct gl_fragment_program *fp =
+ (const struct gl_fragment_program *) program;
+ struct pipe_screen *pscreen = st->pipe->screen;
+ GLfloat adjX = 0.0f;
+ GLfloat adjY[2] = { 0.0f, 0.0f };
+ boolean invert = FALSE;
+
+ /* Query the pixel center conventions supported by the pipe driver and set
+ * adjX, adjY to help out if it cannot handle the requested one internally.
+ *
+ * The bias of the y-coordinate depends on whether y-inversion takes place
+ * (adjY[1]) or not (adjY[0]), which is in turn dependent on whether we are
+ * drawing to an FBO (causes additional inversion), and whether the the pipe
+ * driver origin and the requested origin differ (the latter condition is
+ * stored in the 'invert' variable).
+ *
+ * For height = 100 (i = integer, h = half-integer, l = lower, u = upper):
+ *
+ * center shift only:
+ * i -> h: +0.5
+ * h -> i: -0.5
+ *
+ * inversion only:
+ * l,i -> u,i: ( 0.0 + 1.0) * -1 + 100 = 99
+ * l,h -> u,h: ( 0.5 + 0.0) * -1 + 100 = 99.5
+ * u,i -> l,i: (99.0 + 1.0) * -1 + 100 = 0
+ * u,h -> l,h: (99.5 + 0.0) * -1 + 100 = 0.5
+ *
+ * inversion and center shift:
+ * l,i -> u,h: ( 0.0 + 0.5) * -1 + 100 = 99.5
+ * l,h -> u,i: ( 0.5 + 0.5) * -1 + 100 = 99
+ * u,i -> l,h: (99.0 + 0.5) * -1 + 100 = 0.5
+ * u,h -> l,i: (99.5 + 0.5) * -1 + 100 = 0
*/
- t->inputs[t->inputMapping[FRAG_ATTRIB_WPOS]] = ureg_src(wpos_temp);
+ if (fp->OriginUpperLeft) {
+ /* Fragment shader wants origin in upper-left */
+ if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT)) {
+ /* the driver supports upper-left origin */
+ }
+ else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT)) {
+ /* the driver supports lower-left origin, need to invert Y */
+ ureg_property_fs_coord_origin(ureg, TGSI_FS_COORD_ORIGIN_LOWER_LEFT);
+ invert = TRUE;
+ }
+ else
+ assert(0);
+ }
+ else {
+ /* Fragment shader wants origin in lower-left */
+ if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT))
+ /* the driver supports lower-left origin */
+ ureg_property_fs_coord_origin(ureg, TGSI_FS_COORD_ORIGIN_LOWER_LEFT);
+ else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT))
+ /* the driver supports upper-left origin, need to invert Y */
+ invert = TRUE;
+ else
+ assert(0);
+ }
+
+ if (fp->PixelCenterInteger) {
+ /* Fragment shader wants pixel center integer */
+ if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER)) {
+ /* the driver supports pixel center integer */
+ adjY[1] = 1.0f;
+ ureg_property_fs_coord_pixel_center(ureg, TGSI_FS_COORD_PIXEL_CENTER_INTEGER);
+ }
+ else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER)) {
+ /* the driver supports pixel center half integer, need to bias X,Y */
+ adjX = -0.5f;
+ adjY[0] = -0.5f;
+ adjY[1] = 0.5f;
+ }
+ else
+ assert(0);
+ }
+ else {
+ /* Fragment shader wants pixel center half integer */
+ if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER)) {
+ /* the driver supports pixel center half integer */
+ }
+ else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER)) {
+ /* the driver supports pixel center integer, need to bias X,Y */
+ adjX = adjY[0] = adjY[1] = 0.5f;
+ ureg_property_fs_coord_pixel_center(ureg, TGSI_FS_COORD_PIXEL_CENTER_INTEGER);
+ }
+ else
+ assert(0);
+ }
+
+ /* we invert after adjustment so that we avoid the MOV to temporary,
+ * and reuse the adjustment ADD instead */
+ emit_wpos_adjustment(t, program, invert, adjX, adjY);
}
{
struct ureg_program *ureg = t->ureg;
struct ureg_dst face_temp = ureg_DECL_temporary( ureg );
- struct ureg_src face_input = t->inputs[t->inputMapping[FRAG_ATTRIB_FACE]];
+ struct ureg_src face_input = t->inputs[t->inputMapping[VARYING_SLOT_FACE]];
/* MOV_SAT face_temp, input[face]
*/
/* Use face_temp as face input from here on:
*/
- t->inputs[t->inputMapping[FRAG_ATTRIB_FACE]] = ureg_src(face_temp);
+ t->inputs[t->inputMapping[VARYING_SLOT_FACE]] = ureg_src(face_temp);
}
+
static void
emit_edgeflags( struct st_translate *t,
const struct gl_program *program )
{
struct ureg_program *ureg = t->ureg;
- struct ureg_dst edge_dst = t->outputs[t->outputMapping[VERT_RESULT_EDGE]];
+ struct ureg_dst edge_dst = t->outputs[t->outputMapping[VARYING_SLOT_EDGE]];
struct ureg_src edge_src = t->inputs[t->inputMapping[VERT_ATTRIB_EDGEFLAG]];
ureg_MOV( ureg, edge_dst, edge_src );
}
+
/**
* Translate Mesa program to TGSI format.
* \param program the program to translate
* \param outputSemanticIndex the semantic index (ex: which texcoord) for
* each output
*
- * \return array of translated tokens, caller's responsibility to free
+ * \return PIPE_OK or PIPE_ERROR_OUT_OF_MEMORY
*/
enum pipe_error
st_translate_mesa_program(
- GLcontext *ctx,
+ struct gl_context *ctx,
uint procType,
struct ureg_program *ureg,
const struct gl_program *program,
const GLuint outputMapping[],
const ubyte outputSemanticName[],
const ubyte outputSemanticIndex[],
- boolean passthrough_edgeflags )
+ boolean passthrough_edgeflags,
+ boolean clamp_color)
{
struct st_translate translate, *t;
unsigned i;
+ enum pipe_error ret = PIPE_OK;
+
+ assert(numInputs <= Elements(t->inputs));
+ assert(numOutputs <= Elements(t->outputs));
t = &translate;
memset(t, 0, sizeof *t);
t->inputMapping = inputMapping;
t->outputMapping = outputMapping;
t->ureg = ureg;
- t->psizoutindex = -1;
- t->prevInstWrotePsiz = GL_FALSE;
/*_mesa_print_program(program);*/
interpMode[i]);
}
- if (program->InputsRead & FRAG_BIT_WPOS) {
+ if (program->InputsRead & VARYING_BIT_POS) {
/* Must do this after setting up t->inputs, and before
* emitting constant references, below:
*/
- emit_inverted_wpos( t, program );
+ emit_wpos(st_context(ctx), t, program, ureg);
}
- if (program->InputsRead & FRAG_BIT_FACE) {
+ if (program->InputsRead & VARYING_BIT_FACE) {
emit_face_var( t, program );
}
t->outputs[i] = ureg_writemask( t->outputs[i],
TGSI_WRITEMASK_Z );
break;
+ case TGSI_SEMANTIC_STENCIL:
+ t->outputs[i] = ureg_DECL_output( ureg,
+ TGSI_SEMANTIC_STENCIL, /* Stencil */
+ outputSemanticIndex[i] );
+ t->outputs[i] = ureg_writemask( t->outputs[i],
+ TGSI_WRITEMASK_Y );
+ break;
case TGSI_SEMANTIC_COLOR:
t->outputs[i] = ureg_DECL_output( ureg,
TGSI_SEMANTIC_COLOR,
}
}
}
+ else if (procType == TGSI_PROCESSOR_GEOMETRY) {
+ for (i = 0; i < numInputs; i++) {
+ t->inputs[i] = ureg_DECL_gs_input(ureg,
+ i,
+ inputSemanticName[i],
+ inputSemanticIndex[i]);
+ }
+
+ for (i = 0; i < numOutputs; i++) {
+ t->outputs[i] = ureg_DECL_output( ureg,
+ outputSemanticName[i],
+ outputSemanticIndex[i] );
+ }
+ }
else {
+ assert(procType == TGSI_PROCESSOR_VERTEX);
+
for (i = 0; i < numInputs; i++) {
t->inputs[i] = ureg_DECL_vs_input(ureg, i);
}
t->outputs[i] = ureg_DECL_output( ureg,
outputSemanticName[i],
outputSemanticIndex[i] );
- if ((outputSemanticName[i] == TGSI_SEMANTIC_PSIZE) && program->Id) {
- static const gl_state_index pointSizeClampState[STATE_LENGTH]
- = { STATE_INTERNAL, STATE_POINT_SIZE_IMPL_CLAMP, 0, 0, 0 };
- /* XXX: note we are modifying the incoming shader here! Need to
- * do this before emitting the constant decls below, or this
- * will be missed:
- */
- unsigned pointSizeClampConst = _mesa_add_state_reference(program->Parameters,
- pointSizeClampState);
- struct ureg_dst psizregtemp = ureg_DECL_temporary( ureg );
- t->pointSizeConst = ureg_DECL_constant( ureg, pointSizeClampConst );
- t->psizregreal = t->outputs[i];
- t->psizoutindex = i;
- t->outputs[i] = psizregtemp;
- }
+ if (outputSemanticName[i] == TGSI_SEMANTIC_FOG) {
+ /* force register to contain a fog coordinate in the form (F, 0, 0, 1). */
+ ureg_MOV(ureg,
+ ureg_writemask(t->outputs[i], TGSI_WRITEMASK_YZW),
+ ureg_imm4f(ureg, 0.0f, 0.0f, 0.0f, 1.0f));
+ t->outputs[i] = ureg_writemask(t->outputs[i], TGSI_WRITEMASK_X);
+ }
}
if (passthrough_edgeflags)
emit_edgeflags( t, program );
t->address[0] = ureg_DECL_address( ureg );
}
+ /* Declare misc input registers
+ */
+ {
+ GLbitfield sysInputs = program->SystemValuesRead;
+ unsigned numSys = 0;
+ for (i = 0; sysInputs; i++) {
+ if (sysInputs & (1 << i)) {
+ unsigned semName = _mesa_sysval_to_semantic[i];
+ t->systemValues[i] = ureg_DECL_system_value(ureg, numSys, semName, 0);
+ if (semName == TGSI_SEMANTIC_INSTANCEID ||
+ semName == TGSI_SEMANTIC_VERTEXID) {
+ /* From Gallium perspective, these system values are always
+ * integer, and require native integer support. However, if
+ * native integer is supported on the vertex stage but not the
+ * pixel stage (e.g, i915g + draw), Mesa will generate IR that
+ * assumes these system values are floats. To resolve the
+ * inconsistency, we insert a U2F.
+ */
+ struct st_context *st = st_context(ctx);
+ struct pipe_screen *pscreen = st->pipe->screen;
+ assert(procType == TGSI_PROCESSOR_VERTEX);
+ assert(pscreen->get_shader_param(pscreen, PIPE_SHADER_VERTEX, PIPE_SHADER_CAP_INTEGERS));
+ (void) pscreen; /* silence non-debug build warnings */
+ if (!ctx->Const.NativeIntegers) {
+ struct ureg_dst temp = ureg_DECL_local_temporary(t->ureg);
+ ureg_U2F( t->ureg, ureg_writemask(temp, TGSI_WRITEMASK_X), t->systemValues[i]);
+ t->systemValues[i] = ureg_scalar(ureg_src(temp), 0);
+ }
+ }
+ numSys++;
+ sysInputs &= ~(1 << i);
+ }
+ }
+ }
+
+ if (program->IndirectRegisterFiles & (1 << PROGRAM_TEMPORARY)) {
+ /* If temps are accessed with indirect addressing, declare temporaries
+ * in sequential order. Else, we declare them on demand elsewhere.
+ */
+ for (i = 0; i < program->NumTemporaries; i++) {
+ /* XXX use TGSI_FILE_TEMPORARY_ARRAY when it's supported by ureg */
+ t->temps[i] = ureg_DECL_temporary( t->ureg );
+ }
+ }
/* Emit constants and immediates. Mesa uses a single index space
* for these, so we put all the translated regs in t->constants.
*/
if (program->Parameters) {
-
- t->constants = CALLOC( program->Parameters->NumParameters,
+ t->constants = calloc( program->Parameters->NumParameters,
sizeof t->constants[0] );
- if (t->constants == NULL)
+ if (t->constants == NULL) {
+ ret = PIPE_ERROR_OUT_OF_MEMORY;
goto out;
-
+ }
+
for (i = 0; i < program->Parameters->NumParameters; i++) {
switch (program->Parameters->Parameters[i].Type) {
- case PROGRAM_ENV_PARAM:
- case PROGRAM_LOCAL_PARAM:
case PROGRAM_STATE_VAR:
- case PROGRAM_NAMED_PARAM:
case PROGRAM_UNIFORM:
t->constants[i] = ureg_DECL_constant( ureg, i );
break;
- /* Emit immediates only when there is no address register
- * in use. FIXME: Be smarter and recognize param arrays:
+ /* Emit immediates only when there's no indirect addressing of
+ * the const buffer.
+ * FIXME: Be smarter and recognize param arrays:
* indirect addressing is only valid within the referenced
* array.
*/
case PROGRAM_CONSTANT:
- if (program->NumAddressRegs > 0)
+ if (program->IndirectRegisterFiles & PROGRAM_ANY_CONST)
t->constants[i] = ureg_DECL_constant( ureg, i );
else
t->constants[i] =
ureg_DECL_immediate( ureg,
- program->Parameters->ParameterValues[i],
+ (const float*) program->Parameters->ParameterValues[i],
4 );
break;
default:
}
/* texture samplers */
- for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) {
+ for (i = 0; i < ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits; i++) {
if (program->SamplersUsed & (1 << i)) {
t->samplers[i] = ureg_DECL_sampler( ureg, i );
}
*/
for (i = 0; i < program->NumInstructions; i++) {
set_insn_start( t, ureg_get_instruction_number( ureg ));
- compile_instruction( t, &program->Instructions[i] );
-
- /* note can't do that easily at the end of prog due to
- possible early return */
- if (t->prevInstWrotePsiz && program->Id) {
- set_insn_start( t, ureg_get_instruction_number( ureg ));
- ureg_MAX( t->ureg, ureg_writemask(t->outputs[t->psizoutindex], WRITEMASK_X),
- ureg_src(t->outputs[t->psizoutindex]),
- ureg_swizzle(t->pointSizeConst, 1,1,1,1));
- ureg_MIN( t->ureg, ureg_writemask(t->psizregreal, WRITEMASK_X),
- ureg_src(t->outputs[t->psizoutindex]),
- ureg_swizzle(t->pointSizeConst, 2,2,2,2));
- }
- t->prevInstWrotePsiz = GL_FALSE;
+ compile_instruction( ctx, t, &program->Instructions[i], clamp_color );
}
/* Fix up all emitted labels:
t->insn[t->labels[i].branch_target] );
}
- return PIPE_OK;
-
out:
- FREE(t->insn);
- FREE(t->labels);
- FREE(t->constants);
+ free(t->insn);
+ free(t->labels);
+ free(t->constants);
if (t->error) {
debug_printf("%s: translate error flag set\n", __FUNCTION__);
}
- return PIPE_ERROR_OUT_OF_MEMORY;
+ return ret;
}
/**
- * Tokens cannot be free with _mesa_free otherwise the builtin gallium
+ * Tokens cannot be free with free otherwise the builtin gallium
* malloc debugging will get confused.
*/
void
st_free_tokens(const struct tgsi_token *tokens)
{
- FREE((void *)tokens);
+ ureg_free_tokens(tokens);
}
projects / mesa.git / blobdiff