diff options
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c b/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c index 655e84b4cb8..967fd74b003 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c @@ -41,6 +41,33 @@ static struct rc_src_register shadow_ambient(struct radeon_compiler * c, int tmu return reg; } +static void lower_texture_rect(struct r300_fragment_program_compiler *compiler, + struct rc_instruction *inst) +{ + struct rc_instruction *inst_rect; + unsigned temp = rc_find_free_temporary(&compiler->Base); + + if (inst->U.I.TexSrcTarget == RC_TEXTURE_RECT || + compiler->state.unit[inst->U.I.TexSrcUnit].non_normalized_coords) { + inst_rect = rc_insert_new_instruction(&compiler->Base, inst->Prev); + + inst_rect->U.I.Opcode = RC_OPCODE_MUL; + inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY; + inst_rect->U.I.DstReg.Index = temp; + inst_rect->U.I.SrcReg[0] = inst->U.I.SrcReg[0]; + inst_rect->U.I.SrcReg[1].File = RC_FILE_CONSTANT; + inst_rect->U.I.SrcReg[1].Index = + rc_constants_add_state(&compiler->Base.Program.Constants, + RC_STATE_R300_TEXRECT_FACTOR, inst->U.I.TexSrcUnit); + + reset_srcreg(&inst->U.I.SrcReg[0]); + inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY; + inst->U.I.SrcReg[0].Index = temp; + + inst->U.I.TexSrcTarget = RC_TEXTURE_2D; + } +} + /** * Transform TEX, TXP, TXB, and KIL instructions in the following ways: * - implement texture compare (shadow extensions) @@ -176,32 +203,21 @@ int radeonTransformTEX( compiler->state.unit[inst->U.I.TexSrcUnit].fake_npot || compiler->state.unit[inst->U.I.TexSrcUnit].non_normalized_coords)) { rc_wrap_mode wrapmode = compiler->state.unit[inst->U.I.TexSrcUnit].wrap_mode; - struct rc_instruction *inst_rect = NULL; - unsigned temp = rc_find_free_temporary(c); - - if (inst->U.I.TexSrcTarget == RC_TEXTURE_RECT || - compiler->state.unit[inst->U.I.TexSrcUnit].non_normalized_coords) { - inst_rect = rc_insert_new_instruction(c, inst->Prev); - - inst_rect->U.I.Opcode = RC_OPCODE_MUL; - inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY; - inst_rect->U.I.DstReg.Index = temp; - inst_rect->U.I.SrcReg[0] = inst->U.I.SrcReg[0]; - inst_rect->U.I.SrcReg[1].File = RC_FILE_CONSTANT; - inst_rect->U.I.SrcReg[1].Index = - rc_constants_add_state(&c->Program.Constants, - RC_STATE_R300_TEXRECT_FACTOR, inst->U.I.TexSrcUnit); - reset_srcreg(&inst->U.I.SrcReg[0]); - inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY; - inst->U.I.SrcReg[0].Index = temp; - - inst->U.I.TexSrcTarget = RC_TEXTURE_2D; + /* R300 cannot sample from rectangles. */ + if (!compiler->is_r500) { + lower_texture_rect(compiler, inst); } if (compiler->state.unit[inst->U.I.TexSrcUnit].fake_npot && wrapmode != RC_WRAP_NONE) { struct rc_instruction *inst_mov; + unsigned temp = rc_find_free_temporary(c); + + /* For NPOT fallback, we need normalized coordinates anyway. */ + if (compiler->is_r500) { + lower_texture_rect(compiler, inst); + } if (wrapmode == RC_WRAP_REPEAT) { /* Both instructions will be paired up. */ @@ -222,7 +238,7 @@ int radeonTransformTEX( * ADD temp0, temp0, temp0 */ - inst_rect = rc_insert_new_instruction(c, inst->Prev); + struct rc_instruction *inst_rect = rc_insert_new_instruction(c, inst->Prev); inst_rect->U.I.Opcode = RC_OPCODE_MUL; inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY; @@ -286,9 +302,10 @@ int radeonTransformTEX( } } - /* Cannot write texture to output registers or with masks */ + /* Cannot write texture to output registers (all chips) or with masks (non-r500) */ if (inst->U.I.Opcode != RC_OPCODE_KIL && - (inst->U.I.DstReg.File != RC_FILE_TEMPORARY || inst->U.I.DstReg.WriteMask != RC_MASK_XYZW)) { + (inst->U.I.DstReg.File != RC_FILE_TEMPORARY || + (!compiler->is_r500 && inst->U.I.DstReg.WriteMask != RC_MASK_XYZW))) { struct rc_instruction * inst_mov = rc_insert_new_instruction(c, inst); inst_mov->U.I.Opcode = RC_OPCODE_MOV; |