From 67f4d626d39f2c340fa1632d3e4344c547301508 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 29 Jul 2009 20:44:39 -0700 Subject: [PATCH] i915: Add support or fallbacks for GLSL fragment shader opcodes. --- src/mesa/drivers/dri/i915/i915_fragprog.c | 162 +++++++++++++++++++++- 1 file changed, 158 insertions(+), 4 deletions(-) diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c index 66db7e1645c..d5659e762f3 100644 --- a/src/mesa/drivers/dri/i915/i915_fragprog.c +++ b/src/mesa/drivers/dri/i915/i915_fragprog.c @@ -366,7 +366,7 @@ upload_program(struct i915_fragment_program *p) while (1) { GLuint src0, src1, src2, flags; - GLuint tmp = 0, consts0 = 0, consts1 = 0; + GLuint tmp = 0, dst, consts0 = 0, consts1 = 0; switch (inst->Opcode) { case OPCODE_ABS: @@ -518,6 +518,10 @@ upload_program(struct i915_fragment_program *p) EMIT_1ARG_ARITH(A0_FLR); break; + case OPCODE_TRUNC: + EMIT_1ARG_ARITH(A0_TRC); + break; + case OPCODE_FRC: EMIT_1ARG_ARITH(A0_FRC); break; @@ -531,6 +535,22 @@ upload_program(struct i915_fragment_program *p) 0, src0, T0_TEXKILL); break; + case OPCODE_KIL_NV: + if (inst->DstReg.CondMask == COND_TR) { + tmp = i915_get_utemp(p); + + i915_emit_texld(p, get_live_regs(p, inst), + tmp, A0_DEST_CHANNEL_ALL, + 0, /* use a dummy dest reg */ + swizzle(tmp, ONE, ONE, ONE, ONE), /* always */ + T0_TEXKILL); + } else { + p->error = 1; + i915_program_error(p, "Unsupported KIL_NV condition code: %d", + inst->DstReg.CondMask); + } + break; + case OPCODE_LG2: src0 = src_vector(p, &inst->SrcReg[0], program); @@ -630,6 +650,20 @@ upload_program(struct i915_fragment_program *p) EMIT_2ARG_ARITH(A0_MUL); break; + case OPCODE_NOISE1: + case OPCODE_NOISE2: + case OPCODE_NOISE3: + case OPCODE_NOISE4: + /* Don't implement noise because we just don't have the instructions + * to spare. We aren't the first vendor to do so. + */ + i915_program_error(p, "Stubbed-out noise functions"); + i915_emit_arith(p, + A0_MOV, + get_result_vector(p, inst), + get_result_flags(inst), 0, + swizzle(src0, ZERO, ZERO, ZERO, ZERO), 0, 0); + case OPCODE_POW: src0 = src_vector(p, &inst->SrcReg[0], program); src1 = src_vector(p, &inst->SrcReg[1], program); @@ -736,9 +770,38 @@ upload_program(struct i915_fragment_program *p) } break; - case OPCODE_SGE: - EMIT_2ARG_ARITH(A0_SGE); - break; + case OPCODE_SEQ: + tmp = i915_get_utemp(p); + flags = get_result_flags(inst); + dst = get_result_vector(p, inst); + + /* dst = src1 >= src2 */ + i915_emit_arith(p, + A0_SGE, + dst, + flags, 0, + src_vector(p, &inst->SrcReg[0], program), + src_vector(p, &inst->SrcReg[1], program), + 0); + /* tmp = src1 <= src2 */ + i915_emit_arith(p, + A0_SGE, + tmp, + flags, 0, + negate(src_vector(p, &inst->SrcReg[0], program), + 1, 1, 1, 1), + negate(src_vector(p, &inst->SrcReg[1], program), + 1, 1, 1, 1), + 0); + /* dst = tmp && dst */ + i915_emit_arith(p, + A0_MUL, + dst, + flags, 0, + dst, + tmp, + 0); + break; case OPCODE_SIN: src0 = src_vector(p, &inst->SrcReg[0], program); @@ -824,10 +887,71 @@ upload_program(struct i915_fragment_program *p) break; + case OPCODE_SGE: + EMIT_2ARG_ARITH(A0_SGE); + break; + + case OPCODE_SGT: + i915_emit_arith(p, + A0_SLT, + get_result_vector( p, inst ), + get_result_flags( inst ), 0, + negate(src_vector( p, &inst->SrcReg[0], program), + 1, 1, 1, 1), + negate(src_vector( p, &inst->SrcReg[1], program), + 1, 1, 1, 1), + 0); + break; + + case OPCODE_SLE: + i915_emit_arith(p, + A0_SGE, + get_result_vector( p, inst ), + get_result_flags( inst ), 0, + negate(src_vector( p, &inst->SrcReg[0], program), + 1, 1, 1, 1), + negate(src_vector( p, &inst->SrcReg[1], program), + 1, 1, 1, 1), + 0); + break; + case OPCODE_SLT: EMIT_2ARG_ARITH(A0_SLT); break; + case OPCODE_SNE: + tmp = i915_get_utemp(p); + flags = get_result_flags(inst); + dst = get_result_vector(p, inst); + + /* dst = src1 < src2 */ + i915_emit_arith(p, + A0_SLT, + dst, + flags, 0, + src_vector(p, &inst->SrcReg[0], program), + src_vector(p, &inst->SrcReg[1], program), + 0); + /* tmp = src1 > src2 */ + i915_emit_arith(p, + A0_SLT, + tmp, + flags, 0, + negate(src_vector(p, &inst->SrcReg[0], program), + 1, 1, 1, 1), + negate(src_vector(p, &inst->SrcReg[1], program), + 1, 1, 1, 1), + 0); + /* dst = tmp || dst */ + i915_emit_arith(p, + A0_ADD, + dst, + flags | A0_DEST_SATURATE, 0, + dst, + tmp, + 0); + break; + case OPCODE_SUB: src0 = src_vector(p, &inst->SrcReg[0], program); src1 = src_vector(p, &inst->SrcReg[1], program); @@ -884,6 +1008,36 @@ upload_program(struct i915_fragment_program *p) case OPCODE_END: return; + case OPCODE_BGNLOOP: + case OPCODE_BGNSUB: + case OPCODE_BRA: + case OPCODE_BRK: + case OPCODE_CAL: + case OPCODE_CONT: + case OPCODE_DDX: + case OPCODE_DDY: + case OPCODE_ELSE: + case OPCODE_ENDIF: + case OPCODE_ENDLOOP: + case OPCODE_ENDSUB: + case OPCODE_IF: + case OPCODE_RET: + p->error = 1; + i915_program_error(p, "Unsupported opcode: %s", + _mesa_opcode_string(inst->Opcode)); + return; + + case OPCODE_EXP: + case OPCODE_LOG: + /* These opcodes are claimed as GLSL, NV_vp, and ARB_vp in + * prog_instruction.h, but apparently GLSL doesn't ever emit them. + * Instead, it translates to EX2 or LG2. + */ + case OPCODE_TXD: + case OPCODE_TXL: + /* These opcodes are claimed by GLSL in prog_instruction.h, but + * only NV_vp/fp appears to emit them. + */ default: i915_program_error(p, "bad opcode: %s", _mesa_opcode_string(inst->Opcode)); -- 2.30.2