#include "../r300_reg.h"
-static struct rc_src_register shadow_ambient(struct radeon_compiler * c, int tmu)
-{
- struct rc_src_register reg = { 0, };
-
- reg.File = RC_FILE_CONSTANT;
- reg.Index = rc_constants_add_state(&c->Program.Constants, RC_STATE_SHADOW_AMBIENT, tmu);
- reg.Swizzle = RC_SWIZZLE_WWWW;
- return reg;
-}
-
-/**
- * Transform TEX, TXP, TXB, and KIL instructions in the following way:
- * - premultiply texture coordinates for RECT
- * - extract operand swizzles
- * - introduce a temporary register when write masks are needed
- */
-int r300_transform_TEX(
- struct radeon_compiler * c,
- struct rc_instruction* inst,
- void* data)
-{
- struct r300_fragment_program_compiler *compiler =
- (struct r300_fragment_program_compiler*)data;
-
- if (inst->U.I.Opcode != RC_OPCODE_TEX &&
- inst->U.I.Opcode != RC_OPCODE_TXB &&
- inst->U.I.Opcode != RC_OPCODE_TXP &&
- inst->U.I.Opcode != RC_OPCODE_KIL)
- return 0;
-
- /* ARB_shadow & EXT_shadow_funcs */
- if (inst->U.I.Opcode != RC_OPCODE_KIL &&
- c->Program.ShadowSamplers & (1 << inst->U.I.TexSrcUnit)) {
- rc_compare_func comparefunc = compiler->state.unit[inst->U.I.TexSrcUnit].texture_compare_func;
-
- if (comparefunc == RC_COMPARE_FUNC_NEVER || comparefunc == RC_COMPARE_FUNC_ALWAYS) {
- inst->U.I.Opcode = RC_OPCODE_MOV;
-
- if (comparefunc == RC_COMPARE_FUNC_ALWAYS) {
- inst->U.I.SrcReg[0].File = RC_FILE_NONE;
- inst->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_1111;
- } else {
- inst->U.I.SrcReg[0] = shadow_ambient(c, inst->U.I.TexSrcUnit);
- }
-
- return 1;
- } else {
- rc_compare_func comparefunc = compiler->state.unit[inst->U.I.TexSrcUnit].texture_compare_func;
- unsigned int depthmode = compiler->state.unit[inst->U.I.TexSrcUnit].depth_texture_mode;
- struct rc_instruction * inst_rcp = rc_insert_new_instruction(c, inst);
- struct rc_instruction * inst_mad = rc_insert_new_instruction(c, inst_rcp);
- struct rc_instruction * inst_cmp = rc_insert_new_instruction(c, inst_mad);
- int pass, fail;
-
- inst_rcp->U.I.Opcode = RC_OPCODE_RCP;
- inst_rcp->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_rcp->U.I.DstReg.Index = rc_find_free_temporary(c);
- inst_rcp->U.I.DstReg.WriteMask = RC_MASK_W;
- inst_rcp->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
- inst_rcp->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_WWWW;
-
- inst_cmp->U.I.DstReg = inst->U.I.DstReg;
- inst->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst->U.I.DstReg.Index = rc_find_free_temporary(c);
- inst->U.I.DstReg.WriteMask = RC_MASK_XYZW;
-
- inst_mad->U.I.Opcode = RC_OPCODE_MAD;
- inst_mad->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_mad->U.I.DstReg.Index = rc_find_free_temporary(c);
- inst_mad->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
- inst_mad->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_ZZZZ;
- inst_mad->U.I.SrcReg[1].File = RC_FILE_TEMPORARY;
- inst_mad->U.I.SrcReg[1].Index = inst_rcp->U.I.DstReg.Index;
- inst_mad->U.I.SrcReg[1].Swizzle = RC_SWIZZLE_WWWW;
- inst_mad->U.I.SrcReg[2].File = RC_FILE_TEMPORARY;
- inst_mad->U.I.SrcReg[2].Index = inst->U.I.DstReg.Index;
- if (depthmode == 0) /* GL_LUMINANCE */
- inst_mad->U.I.SrcReg[2].Swizzle = RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_Z);
- else if (depthmode == 2) /* GL_ALPHA */
- inst_mad->U.I.SrcReg[2].Swizzle = RC_SWIZZLE_WWWW;
-
- /* Recall that SrcReg[0] is tex, SrcReg[2] is r and:
- * r < tex <=> -tex+r < 0
- * r >= tex <=> not (-tex+r < 0 */
- if (comparefunc == RC_COMPARE_FUNC_LESS || comparefunc == RC_COMPARE_FUNC_GEQUAL)
- inst_mad->U.I.SrcReg[2].Negate = inst_mad->U.I.SrcReg[2].Negate ^ RC_MASK_XYZW;
- else
- inst_mad->U.I.SrcReg[0].Negate = inst_mad->U.I.SrcReg[0].Negate ^ RC_MASK_XYZW;
-
- inst_cmp->U.I.Opcode = RC_OPCODE_CMP;
- /* DstReg has been filled out above */
- inst_cmp->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst_cmp->U.I.SrcReg[0].Index = inst_mad->U.I.DstReg.Index;
-
- if (comparefunc == RC_COMPARE_FUNC_LESS || comparefunc == RC_COMPARE_FUNC_GREATER) {
- pass = 1;
- fail = 2;
- } else {
- pass = 2;
- fail = 1;
- }
-
- inst_cmp->U.I.SrcReg[pass].File = RC_FILE_NONE;
- inst_cmp->U.I.SrcReg[pass].Swizzle = RC_SWIZZLE_1111;
- inst_cmp->U.I.SrcReg[fail] = shadow_ambient(c, inst->U.I.TexSrcUnit);
- }
- }
-
- /* Hardware uses [0..1]x[0..1] range for rectangle textures
- * instead of [0..Width]x[0..Height].
- * Add a scaling instruction.
- */
- if (inst->U.I.Opcode != RC_OPCODE_KIL && inst->U.I.TexSrcTarget == RC_TEXTURE_RECT) {
- struct rc_instruction * inst_mul = rc_insert_new_instruction(c, inst->Prev);
-
- inst_mul->U.I.Opcode = RC_OPCODE_MUL;
- inst_mul->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_mul->U.I.DstReg.Index = rc_find_free_temporary(c);
- inst_mul->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
- inst_mul->U.I.SrcReg[1].File = RC_FILE_CONSTANT;
- inst_mul->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 = inst_mul->U.I.DstReg.Index;
- }
-
- /* Cannot write texture to output registers or with masks */
- if (inst->U.I.Opcode != RC_OPCODE_KIL &&
- (inst->U.I.DstReg.File != RC_FILE_TEMPORARY || 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;
- inst_mov->U.I.DstReg = inst->U.I.DstReg;
- inst_mov->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst_mov->U.I.SrcReg[0].Index = rc_find_free_temporary(c);
-
- inst->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst->U.I.DstReg.Index = inst_mov->U.I.SrcReg[0].Index;
- inst->U.I.DstReg.WriteMask = RC_MASK_XYZW;
- }
-
-
- /* Cannot read texture coordinate from constants file */
- if (inst->U.I.SrcReg[0].File != RC_FILE_TEMPORARY && inst->U.I.SrcReg[0].File != RC_FILE_INPUT) {
- struct rc_instruction * inst_mov = rc_insert_new_instruction(c, inst->Prev);
-
- inst_mov->U.I.Opcode = RC_OPCODE_MOV;
- inst_mov->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_mov->U.I.DstReg.Index = rc_find_free_temporary(c);
- inst_mov->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
-
- reset_srcreg(&inst->U.I.SrcReg[0]);
- inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst->U.I.SrcReg[0].Index = inst_mov->U.I.DstReg.Index;
- }
-
- return 1;
-}
-
/* just some random things... */
void r300FragmentProgramDump(struct rX00_fragment_program_code *c)
{
if (flags[0] != 0) {
sprintf(tmp, "o%i.%s",
(code->alu.inst[i].
- rgb_addr >> R300_ALU_DSTC_SHIFT) & 31,
+ rgb_addr >> 29) & 3,
flags);
strcat(dstc, tmp);
}
if (code->alu.inst[i].alpha_addr & R300_ALU_DSTA_OUTPUT) {
sprintf(tmp, "o%i.w ",
(code->alu.inst[i].
- alpha_addr >> R300_ALU_DSTA_SHIFT) & 31);
+ alpha_addr >> 25) & 3);
strcat(dsta, tmp);
}
if (code->alu.inst[i].alpha_addr & R300_ALU_DSTA_DEPTH) {
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