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path: root/mesalib/src/mesa/shader/prog_execute.c
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Diffstat (limited to 'mesalib/src/mesa/shader/prog_execute.c')
-rw-r--r--mesalib/src/mesa/shader/prog_execute.c127
1 files changed, 84 insertions, 43 deletions
diff --git a/mesalib/src/mesa/shader/prog_execute.c b/mesalib/src/mesa/shader/prog_execute.c
index 192d39aed..37750cc33 100644
--- a/mesalib/src/mesa/shader/prog_execute.c
+++ b/mesalib/src/mesa/shader/prog_execute.c
@@ -38,7 +38,6 @@
#include "main/glheader.h"
#include "main/colormac.h"
#include "main/context.h"
-#include "program.h"
#include "prog_execute.h"
#include "prog_instruction.h"
#include "prog_parameter.h"
@@ -54,8 +53,18 @@
* Set x to positive or negative infinity.
*/
#if defined(USE_IEEE) || defined(_WIN32)
-#define SET_POS_INFINITY(x) ( *((GLuint *) (void *)&x) = 0x7F800000 )
-#define SET_NEG_INFINITY(x) ( *((GLuint *) (void *)&x) = 0xFF800000 )
+#define SET_POS_INFINITY(x) \
+ do { \
+ fi_type fi; \
+ fi.i = 0x7F800000; \
+ x = fi.f; \
+ } while (0)
+#define SET_NEG_INFINITY(x) \
+ do { \
+ fi_type fi; \
+ fi.i = 0xFF800000; \
+ x = fi.f; \
+ } while (0)
#elif defined(VMS)
#define SET_POS_INFINITY(x) x = __MAXFLOAT
#define SET_NEG_INFINITY(x) x = -__MAXFLOAT
@@ -342,6 +351,15 @@ fetch_vector1(const struct prog_src_register *source,
}
+static GLuint
+fetch_vector1ui(const struct prog_src_register *source,
+ const struct gl_program_machine *machine)
+{
+ const GLuint *src = (GLuint *) get_src_register_pointer(source, machine);
+ return src[GET_SWZ(source->Swizzle, 0)];
+}
+
+
/**
* Fetch texel from texture. Use partial derivatives when possible.
*/
@@ -568,13 +586,13 @@ store_vector4ui(const struct prog_instruction *inst,
if (inst->CondUpdate) {
if (writeMask & WRITEMASK_X)
- machine->CondCodes[0] = generate_cc(value[0]);
+ machine->CondCodes[0] = generate_cc((float)value[0]);
if (writeMask & WRITEMASK_Y)
- machine->CondCodes[1] = generate_cc(value[1]);
+ machine->CondCodes[1] = generate_cc((float)value[1]);
if (writeMask & WRITEMASK_Z)
- machine->CondCodes[2] = generate_cc(value[2]);
+ machine->CondCodes[2] = generate_cc((float)value[2]);
if (writeMask & WRITEMASK_W)
- machine->CondCodes[3] = generate_cc(value[3]);
+ machine->CondCodes[3] = generate_cc((float)value[3]);
#if DEBUG_PROG
printf("CondCodes=(%s,%s,%s,%s) for:\n",
_mesa_condcode_string(machine->CondCodes[0]),
@@ -670,13 +688,20 @@ _mesa_execute_program(GLcontext * ctx,
GLfloat t[4];
fetch_vector4(&inst->SrcReg[0], machine, t);
machine->AddressReg[0][0] = IFLOOR(t[0]);
+ if (DEBUG_PROG) {
+ printf("ARL %d\n", machine->AddressReg[0][0]);
+ }
}
break;
case OPCODE_BGNLOOP:
/* no-op */
+ ASSERT(program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_ENDLOOP);
break;
case OPCODE_ENDLOOP:
/* subtract 1 here since pc is incremented by for(pc) loop */
+ ASSERT(program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_BGNLOOP);
pc = inst->BranchTarget - 1; /* go to matching BNGLOOP */
break;
case OPCODE_BGNSUB: /* begin subroutine */
@@ -684,12 +709,26 @@ _mesa_execute_program(GLcontext * ctx,
case OPCODE_ENDSUB: /* end subroutine */
break;
case OPCODE_BRA: /* branch (conditional) */
- /* fall-through */
+ if (eval_condition(machine, inst)) {
+ /* take branch */
+ /* Subtract 1 here since we'll do pc++ below */
+ pc = inst->BranchTarget - 1;
+ }
+ break;
case OPCODE_BRK: /* break out of loop (conditional) */
- /* fall-through */
+ ASSERT(program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_ENDLOOP);
+ if (eval_condition(machine, inst)) {
+ /* break out of loop */
+ /* pc++ at end of for-loop will put us after the ENDLOOP inst */
+ pc = inst->BranchTarget;
+ }
+ break;
case OPCODE_CONT: /* continue loop (conditional) */
+ ASSERT(program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_ENDLOOP);
if (eval_condition(machine, inst)) {
- /* take branch */
+ /* continue at ENDLOOP */
/* Subtract 1 here since we'll do pc++ at end of for-loop */
pc = inst->BranchTarget - 1;
}
@@ -882,6 +921,10 @@ _mesa_execute_program(GLcontext * ctx,
case OPCODE_IF:
{
GLboolean cond;
+ ASSERT(program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_ELSE ||
+ program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_ENDIF);
/* eval condition */
if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
GLfloat a[4];
@@ -901,14 +944,16 @@ _mesa_execute_program(GLcontext * ctx,
else {
/* go to the instruction after ELSE or ENDIF */
assert(inst->BranchTarget >= 0);
- pc = inst->BranchTarget - 1;
+ pc = inst->BranchTarget;
}
}
break;
case OPCODE_ELSE:
/* goto ENDIF */
+ ASSERT(program->Instructions[inst->BranchTarget].Opcode
+ == OPCODE_ENDIF);
assert(inst->BranchTarget >= 0);
- pc = inst->BranchTarget - 1;
+ pc = inst->BranchTarget;
break;
case OPCODE_ENDIF:
/* nothing */
@@ -942,7 +987,7 @@ _mesa_execute_program(GLcontext * ctx,
val = -FLT_MAX;
}
else {
- val = log(a[0]) * 1.442695F;
+ val = (float)(log(a[0]) * 1.442695F);
}
result[0] = result[1] = result[2] = result[3] = val;
store_vector4(inst, machine, result);
@@ -962,12 +1007,12 @@ _mesa_execute_program(GLcontext * ctx,
/* XXX we could probably just use pow() here */
if (a[0] > 0.0F) {
if (a[1] == 0.0 && a[3] == 0.0)
- result[2] = 1.0;
+ result[2] = 1.0F;
else
result[2] = (GLfloat) _mesa_pow(a[1], a[3]);
}
else {
- result[2] = 0.0;
+ result[2] = 0.0F;
}
result[3] = 1.0F;
store_vector4(inst, machine, result);
@@ -1007,7 +1052,7 @@ _mesa_execute_program(GLcontext * ctx,
/* The fast LOG2 macro doesn't meet the precision
* requirements.
*/
- q[2] = (log(t[0]) * 1.442695F);
+ q[2] = (float)(log(t[0]) * 1.442695F);
}
}
else {
@@ -1634,12 +1679,11 @@ _mesa_execute_program(GLcontext * ctx,
break;
case OPCODE_UP2H: /* unpack two 16-bit floats */
{
- GLfloat a[4], result[4];
- const GLuint *rawBits = (const GLuint *) a;
- GLhalfNV hx, hy;
- fetch_vector1(&inst->SrcReg[0], machine, a);
- hx = rawBits[0] & 0xffff;
- hy = rawBits[0] >> 16;
+ const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+ GLfloat result[4];
+ GLushort hx, hy;
+ hx = raw & 0xffff;
+ hy = raw >> 16;
result[0] = result[2] = _mesa_half_to_float(hx);
result[1] = result[3] = _mesa_half_to_float(hy);
store_vector4(inst, machine, result);
@@ -1647,12 +1691,11 @@ _mesa_execute_program(GLcontext * ctx,
break;
case OPCODE_UP2US: /* unpack two GLushorts */
{
- GLfloat a[4], result[4];
- const GLuint *rawBits = (const GLuint *) a;
+ const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+ GLfloat result[4];
GLushort usx, usy;
- fetch_vector1(&inst->SrcReg[0], machine, a);
- usx = rawBits[0] & 0xffff;
- usy = rawBits[0] >> 16;
+ usx = raw & 0xffff;
+ usy = raw >> 16;
result[0] = result[2] = usx * (1.0f / 65535.0f);
result[1] = result[3] = usy * (1.0f / 65535.0f);
store_vector4(inst, machine, result);
@@ -1660,25 +1703,23 @@ _mesa_execute_program(GLcontext * ctx,
break;
case OPCODE_UP4B: /* unpack four GLbytes */
{
- GLfloat a[4], result[4];
- const GLuint *rawBits = (const GLuint *) a;
- fetch_vector1(&inst->SrcReg[0], machine, a);
- result[0] = (((rawBits[0] >> 0) & 0xff) - 128) / 127.0F;
- result[1] = (((rawBits[0] >> 8) & 0xff) - 128) / 127.0F;
- result[2] = (((rawBits[0] >> 16) & 0xff) - 128) / 127.0F;
- result[3] = (((rawBits[0] >> 24) & 0xff) - 128) / 127.0F;
+ const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+ GLfloat result[4];
+ result[0] = (((raw >> 0) & 0xff) - 128) / 127.0F;
+ result[1] = (((raw >> 8) & 0xff) - 128) / 127.0F;
+ result[2] = (((raw >> 16) & 0xff) - 128) / 127.0F;
+ result[3] = (((raw >> 24) & 0xff) - 128) / 127.0F;
store_vector4(inst, machine, result);
}
break;
case OPCODE_UP4UB: /* unpack four GLubytes */
{
- GLfloat a[4], result[4];
- const GLuint *rawBits = (const GLuint *) a;
- fetch_vector1(&inst->SrcReg[0], machine, a);
- result[0] = ((rawBits[0] >> 0) & 0xff) / 255.0F;
- result[1] = ((rawBits[0] >> 8) & 0xff) / 255.0F;
- result[2] = ((rawBits[0] >> 16) & 0xff) / 255.0F;
- result[3] = ((rawBits[0] >> 24) & 0xff) / 255.0F;
+ const GLuint raw = fetch_vector1ui(&inst->SrcReg[0], machine);
+ GLfloat result[4];
+ result[0] = ((raw >> 0) & 0xff) / 255.0F;
+ result[1] = ((raw >> 8) & 0xff) / 255.0F;
+ result[2] = ((raw >> 16) & 0xff) / 255.0F;
+ result[3] = ((raw >> 24) & 0xff) / 255.0F;
store_vector4(inst, machine, result);
}
break;
@@ -1729,11 +1770,11 @@ _mesa_execute_program(GLcontext * ctx,
if (inst->SrcReg[0].File != -1) {
GLfloat a[4];
fetch_vector4(&inst->SrcReg[0], machine, a);
- _mesa_printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,
+ printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,
a[0], a[1], a[2], a[3]);
}
else {
- _mesa_printf("%s\n", (const char *) inst->Data);
+ printf("%s\n", (const char *) inst->Data);
}
}
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 01:49:47 +0000