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mesa: added DP2, DP2A instructions

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This commit is contained in:
Brian Paul
2008-11-07 09:41:00 -07:00
parent 37eef7b474
commit 65cb74ecc0
3 changed files with 32 additions and 2 deletions
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src/mesa/shader/prog_execute.c
+28 -2
View File
@@ -776,6 +776,33 @@ _mesa_execute_program(GLcontext * ctx,
store_vector4(inst, machine, result);
}
break;
case OPCODE_DP2:
{
GLfloat a[4], b[4], result[4];
fetch_vector4(&inst->SrcReg[0], machine, a);
fetch_vector4(&inst->SrcReg[1], machine, b);
result[0] = result[1] = result[2] = result[3] = DOT2(a, b);
store_vector4(inst, machine, result);
if (DEBUG_PROG) {
printf("DP2 %g = (%g %g) . (%g %g)\n",
result[0], a[0], a[1], b[0], b[1]);
}
}
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];
@@ -808,8 +835,7 @@ _mesa_execute_program(GLcontext * ctx,
GLfloat a[4], b[4], result[4];
fetch_vector4(&inst->SrcReg[0], machine, a);
fetch_vector4(&inst->SrcReg[1], machine, b);
result[0] = result[1] = result[2] = result[3] =
a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + b[3];
result[0] = result[1] = result[2] = result[3] = DOT3(a, b) + b[3];
store_vector4(inst, machine, result);
}
break;
src/mesa/shader/prog_instruction.c
+2
View File
@@ -169,6 +169,8 @@ static const struct instruction_info InstInfo[MAX_OPCODE] = {
{ OPCODE_COS, "COS", 1, 1 },
{ OPCODE_DDX, "DDX", 1, 1 },
{ OPCODE_DDY, "DDY", 1, 1 },
{ OPCODE_DP2, "DP2", 2, 1 },
{ OPCODE_DP2A, "DP2A", 3, 1 },
{ OPCODE_DP3, "DP3", 2, 1 },
{ OPCODE_DP4, "DP4", 2, 1 },
{ OPCODE_DPH, "DPH", 2, 1 },
src/mesa/shader/prog_instruction.h
+2
View File
@@ -160,6 +160,8 @@ typedef enum prog_opcode {
OPCODE_COS, /* X 2 X X */
OPCODE_DDX, /* X X */
OPCODE_DDY, /* X X */
OPCODE_DP2, /* 2 */
OPCODE_DP2A, /* 2 */
OPCODE_DP3, /* X X X X X */
OPCODE_DP4, /* X X X X X */
OPCODE_DPH, /* X X 1.1 */