/*
* Mesa 3-D graphics library
- * Version: 7.3
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
/**
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
#else
#define SET_POS_INFINITY(x) x = (GLfloat) HUGE_VAL
#define SET_NEG_INFINITY(x) x = (GLfloat) -HUGE_VAL
static const GLfloat ZeroVec[4] = { 0.0F, 0.0F, 0.0F, 0.0F };
-
-/**
- * Return TRUE for +0 and other positive values, FALSE otherwise.
- * Used for RCC opcode.
- */
-static INLINE GLboolean
-positive(float x)
-{
- fi_type fi;
- fi.f = x;
- if (fi.i & 0x80000000)
- return GL_FALSE;
- return GL_TRUE;
-}
-
-
-
/**
* Return a pointer to the 4-element float vector specified by the given
* source register.
*/
-static INLINE const GLfloat *
+static inline const GLfloat *
get_src_register_pointer(const struct prog_src_register *source,
const struct gl_program_machine *machine)
{
return machine->VertAttribs[reg];
}
else {
- if (reg >= FRAG_ATTRIB_MAX)
+ if (reg >= VARYING_SLOT_MAX)
return ZeroVec;
return machine->Attribs[reg][machine->CurElement];
}
case PROGRAM_CONSTANT:
/* Fallthrough */
case PROGRAM_UNIFORM:
- /* Fallthrough */
- case PROGRAM_NAMED_PARAM:
if (reg >= (GLint) prog->Parameters->NumParameters)
return ZeroVec;
return (GLfloat *) prog->Parameters->ParameterValues[reg];
_mesa_problem(NULL,
"Invalid src register file %d in get_src_register_pointer()",
source->File);
- return NULL;
+ return ZeroVec;
}
}
* Return a pointer to the 4-element float vector specified by the given
* destination register.
*/
-static INLINE GLfloat *
+static inline GLfloat *
get_dst_register_pointer(const struct prog_dst_register *dest,
struct gl_program_machine *machine)
{
return dummyReg;
return machine->Outputs[reg];
- case PROGRAM_WRITE_ONLY:
- return dummyReg;
-
default:
_mesa_problem(NULL,
"Invalid dest register file %d in get_dst_register_pointer()",
dest->File);
- return NULL;
+ return dummyReg;
}
}
const struct gl_program_machine *machine, GLfloat result[4])
{
const GLfloat *src = get_src_register_pointer(source, machine);
- ASSERT(src);
if (source->Swizzle == SWIZZLE_NOOP) {
/* no swizzling */
}
-/**
- * Fetch a 4-element uint vector from the given source register.
- * Apply swizzling but not negation/abs.
- */
-static void
-fetch_vector4ui(const struct prog_src_register *source,
- const struct gl_program_machine *machine, GLuint result[4])
-{
- const GLuint *src = (GLuint *) get_src_register_pointer(source, machine);
- ASSERT(src);
-
- if (source->Swizzle == SWIZZLE_NOOP) {
- /* no swizzling */
- COPY_4V(result, src);
- }
- else {
- ASSERT(GET_SWZ(source->Swizzle, 0) <= 3);
- ASSERT(GET_SWZ(source->Swizzle, 1) <= 3);
- ASSERT(GET_SWZ(source->Swizzle, 2) <= 3);
- ASSERT(GET_SWZ(source->Swizzle, 3) <= 3);
- result[0] = src[GET_SWZ(source->Swizzle, 0)];
- result[1] = src[GET_SWZ(source->Swizzle, 1)];
- result[2] = src[GET_SWZ(source->Swizzle, 2)];
- result[3] = src[GET_SWZ(source->Swizzle, 3)];
- }
-
- /* Note: no Negate or Abs here */
-}
-
-
-
/**
* Fetch the derivative with respect to X or Y for the given register.
* XXX this currently only works for fragment program input attribs.
if (source->File == PROGRAM_INPUT &&
source->Index < (GLint) machine->NumDeriv) {
const GLint col = machine->CurElement;
- const GLfloat w = machine->Attribs[FRAG_ATTRIB_WPOS][col][3];
+ const GLfloat w = machine->Attribs[VARYING_SLOT_POS][col][3];
const GLfloat invQ = 1.0f / w;
GLfloat deriv[4];
const struct gl_program_machine *machine, GLfloat result[4])
{
const GLfloat *src = get_src_register_pointer(source, machine);
- ASSERT(src);
result[0] = src[GET_SWZ(source->Swizzle, 0)];
/**
* Fetch texel from texture. Use partial derivatives when possible.
*/
-static INLINE void
+static inline void
fetch_texel(struct gl_context *ctx,
const struct gl_program_machine *machine,
const struct prog_instruction *inst,
*/
if (machine->NumDeriv > 0 &&
inst->SrcReg[0].File == PROGRAM_INPUT &&
- inst->SrcReg[0].Index == FRAG_ATTRIB_TEX0 + inst->TexSrcUnit) {
+ inst->SrcReg[0].Index == VARYING_SLOT_TEX0 + inst->TexSrcUnit) {
/* simple texture fetch for which we should have derivatives */
GLuint attr = inst->SrcReg[0].Index;
machine->FetchTexelDeriv(ctx, texcoord,
/**
* Test value against zero and return GT, LT, EQ or UN if NaN.
*/
-static INLINE GLuint
+static inline GLuint
generate_cc(float value)
{
if (value != value)
* Test if the ccMaskRule is satisfied by the given condition code.
* Used to mask destination writes according to the current condition code.
*/
-static INLINE GLboolean
+static inline GLboolean
test_cc(GLuint condCode, GLuint ccMaskRule)
{
switch (ccMaskRule) {
* Evaluate the 4 condition codes against a predicate and return GL_TRUE
* or GL_FALSE to indicate result.
*/
-static INLINE GLboolean
+static inline GLboolean
eval_condition(const struct gl_program_machine *machine,
const struct prog_instruction *inst)
{
}
}
break;
- case OPCODE_AND: /* bitwise AND */
- {
- GLuint a[4], b[4], result[4];
- fetch_vector4ui(&inst->SrcReg[0], machine, a);
- fetch_vector4ui(&inst->SrcReg[1], machine, b);
- result[0] = a[0] & b[0];
- result[1] = a[1] & b[1];
- result[2] = a[2] & b[2];
- result[3] = a[3] & b[3];
- store_vector4ui(inst, machine, result);
- }
- break;
case OPCODE_ARL:
{
GLfloat t[4];
break;
case OPCODE_ENDSUB: /* end subroutine */
break;
- case OPCODE_BRA: /* branch (conditional) */
- 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) */
ASSERT(program->Instructions[inst->BranchTarget].Opcode
== OPCODE_ENDLOOP);
}
}
break;
- case OPCODE_DP2A:
- {
- GLfloat a[4], b[4], c, result[4];
- fetch_vector4(&inst->SrcReg[0], machine, a);
- fetch_vector4(&inst->SrcReg[1], machine, b);
- fetch_vector1(&inst->SrcReg[1], machine, &c);
- result[0] = result[1] = result[2] = result[3] = DOT2(a, b) + c;
- store_vector4(inst, machine, result);
- if (DEBUG_PROG) {
- printf("DP2A %g = (%g %g) . (%g %g) + %g\n",
- result[0], a[0], a[1], b[0], b[1], c);
- }
- }
- break;
case OPCODE_DP3:
{
GLfloat a[4], b[4], result[4];
fetch_vector1(&inst->SrcReg[0], machine, t);
abs_t0 = FABSF(t[0]);
if (abs_t0 != 0.0F) {
- /* Since we really can't handle infinite values on VMS
- * like other OSes we'll use __MAXFLOAT to represent
- * infinity. This may need some tweaking.
- */
-#ifdef VMS
- if (abs_t0 == __MAXFLOAT)
-#else
if (IS_INF_OR_NAN(abs_t0))
-#endif
{
SET_POS_INFINITY(q[0]);
q[1] = 1.0F;
break;
case OPCODE_NOP:
break;
- case OPCODE_NOT: /* bitwise NOT */
- {
- GLuint a[4], result[4];
- fetch_vector4ui(&inst->SrcReg[0], machine, a);
- result[0] = ~a[0];
- result[1] = ~a[1];
- result[2] = ~a[2];
- result[3] = ~a[3];
- store_vector4ui(inst, machine, result);
- }
- break;
- case OPCODE_NRM3: /* 3-component normalization */
- {
- GLfloat a[4], result[4];
- GLfloat tmp;
- fetch_vector4(&inst->SrcReg[0], machine, a);
- tmp = a[0] * a[0] + a[1] * a[1] + a[2] * a[2];
- if (tmp != 0.0F)
- tmp = INV_SQRTF(tmp);
- result[0] = tmp * a[0];
- result[1] = tmp * a[1];
- result[2] = tmp * a[2];
- result[3] = 0.0; /* undefined, but prevent valgrind warnings */
- store_vector4(inst, machine, result);
- }
- break;
- case OPCODE_NRM4: /* 4-component normalization */
- {
- GLfloat a[4], result[4];
- GLfloat tmp;
- fetch_vector4(&inst->SrcReg[0], machine, a);
- tmp = a[0] * a[0] + a[1] * a[1] + a[2] * a[2] + a[3] * a[3];
- if (tmp != 0.0F)
- tmp = INV_SQRTF(tmp);
- result[0] = tmp * a[0];
- result[1] = tmp * a[1];
- result[2] = tmp * a[2];
- result[3] = tmp * a[3];
- store_vector4(inst, machine, result);
- }
- break;
- case OPCODE_OR: /* bitwise OR */
- {
- GLuint a[4], b[4], result[4];
- fetch_vector4ui(&inst->SrcReg[0], machine, a);
- fetch_vector4ui(&inst->SrcReg[1], machine, b);
- result[0] = a[0] | b[0];
- result[1] = a[1] | b[1];
- result[2] = a[2] | b[2];
- result[3] = a[3] | b[3];
- store_vector4ui(inst, machine, result);
- }
- break;
case OPCODE_PK2H: /* pack two 16-bit floats in one 32-bit float */
{
GLfloat a[4];
fetch_vector4(&inst->SrcReg[0], machine, a);
a[0] = CLAMP(a[0], 0.0F, 1.0F);
a[1] = CLAMP(a[1], 0.0F, 1.0F);
- usx = IROUND(a[0] * 65535.0F);
- usy = IROUND(a[1] * 65535.0F);
+ usx = F_TO_I(a[0] * 65535.0F);
+ usy = F_TO_I(a[1] * 65535.0F);
result[0] =
result[1] =
result[2] =
a[1] = CLAMP(a[1], -128.0F / 127.0F, 1.0F);
a[2] = CLAMP(a[2], -128.0F / 127.0F, 1.0F);
a[3] = CLAMP(a[3], -128.0F / 127.0F, 1.0F);
- ubx = IROUND(127.0F * a[0] + 128.0F);
- uby = IROUND(127.0F * a[1] + 128.0F);
- ubz = IROUND(127.0F * a[2] + 128.0F);
- ubw = IROUND(127.0F * a[3] + 128.0F);
+ ubx = F_TO_I(127.0F * a[0] + 128.0F);
+ uby = F_TO_I(127.0F * a[1] + 128.0F);
+ ubz = F_TO_I(127.0F * a[2] + 128.0F);
+ ubw = F_TO_I(127.0F * a[3] + 128.0F);
result[0] =
result[1] =
result[2] =
a[1] = CLAMP(a[1], 0.0F, 1.0F);
a[2] = CLAMP(a[2], 0.0F, 1.0F);
a[3] = CLAMP(a[3], 0.0F, 1.0F);
- ubx = IROUND(255.0F * a[0]);
- uby = IROUND(255.0F * a[1]);
- ubz = IROUND(255.0F * a[2]);
- ubw = IROUND(255.0F * a[3]);
+ ubx = F_TO_I(255.0F * a[0]);
+ uby = F_TO_I(255.0F * a[1]);
+ ubz = F_TO_I(255.0F * a[2]);
+ ubw = F_TO_I(255.0F * a[3]);
result[0] =
result[1] =
result[2] =
store_vector4(inst, machine, result);
}
break;
- case OPCODE_RCC: /* clamped riciprocal */
- {
- const float largest = 1.884467e+19, smallest = 5.42101e-20;
- GLfloat a[4], r, result[4];
- fetch_vector1(&inst->SrcReg[0], machine, a);
- if (DEBUG_PROG) {
- if (a[0] == 0)
- printf("RCC(0)\n");
- else if (IS_INF_OR_NAN(a[0]))
- printf("RCC(inf)\n");
- }
- if (a[0] == 1.0F) {
- r = 1.0F;
- }
- else {
- r = 1.0F / a[0];
- }
- if (positive(r)) {
- if (r > largest) {
- r = largest;
- }
- else if (r < smallest) {
- r = smallest;
- }
- }
- else {
- if (r < -largest) {
- r = -largest;
- }
- else if (r > -smallest) {
- r = -smallest;
- }
- }
- result[0] = result[1] = result[2] = result[3] = r;
- store_vector4(inst, machine, result);
- }
- break;
case OPCODE_RCP:
{
GLfloat texcoord[4], color[4];
fetch_vector4(&inst->SrcReg[0], machine, texcoord);
+ /* For TEX, texcoord.Q should not be used and its value should not
+ * matter (at most, we pass coord.xyz to texture3D() in GLSL).
+ * Set Q=1 so that FetchTexelDeriv() doesn't get a garbage value
+ * which is effectively what happens when the texcoord swizzle
+ * is .xyzz
+ */
+ texcoord[3] = 1.0f;
+
fetch_texel(ctx, machine, inst, texcoord, 0.0, color);
if (DEBUG_PROG) {
store_vector4(inst, machine, result);
}
break;
- case OPCODE_XOR: /* bitwise XOR */
- {
- GLuint a[4], b[4], result[4];
- fetch_vector4ui(&inst->SrcReg[0], machine, a);
- fetch_vector4ui(&inst->SrcReg[1], machine, b);
- result[0] = a[0] ^ b[0];
- result[1] = a[1] ^ b[1];
- result[2] = a[2] ^ b[2];
- result[3] = a[3] ^ b[3];
- store_vector4ui(inst, machine, result);
- }
- break;
case OPCODE_XPD: /* cross product */
{
GLfloat a[4], b[4], result[4];
store_vector4(inst, machine, result);
}
break;
- case OPCODE_PRINT:
- {
- if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
- GLfloat a[4];
- fetch_vector4(&inst->SrcReg[0], machine, a);
- printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,
- a[0], a[1], a[2], a[3]);
- }
- else {
- printf("%s\n", (const char *) inst->Data);
- }
- }
- break;
case OPCODE_END:
return GL_TRUE;
default:
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