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path: root/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
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Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/r500_fragprog.c')
-rw-r--r--src/mesa/drivers/dri/r300/compiler/r500_fragprog.c284
1 files changed, 0 insertions, 284 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
index 0caff487b0..632f0bcf4f 100644
--- a/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r500_fragprog.c
@@ -31,290 +31,6 @@
#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:
- * - implement texture compare (shadow extensions)
- * - extract non-native source / destination operands
- */
-int r500_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);
- }
- }
-
- /* Texture wrap modes don't work on NPOT textures or texrects.
- *
- * The game plan is simple. We have two flags, fake_npot and
- * non_normalized_coords, as well as a tex target. The RECT tex target
- * will make the emitted code use non-scaled texcoords.
- *
- * Non-wrapped/clamped texcoords with NPOT are free in HW. Repeat and
- * mirroring are not. If we need to repeat, we do:
- *
- * MUL temp, texcoord, <scaling factor constant>
- * FRC temp, temp ; Discard integer portion of coords
- *
- * This gives us coords in [0, 1].
- *
- * Mirroring is trickier. We're going to start out like repeat:
- *
- * MUL temp0, texcoord, <scaling factor constant> ; De-mirror across axes
- * MUL temp0, abs(temp0), 0.5 ; Pattern repeats in [0, 2]
- * ; so scale to [0, 1]
- * FRC temp0, temp0 ; Make the pattern repeat
- * SGE temp1, temp0, 0.5 ; Select components that need to be "reflected"
- * ; across the mirror
- * MAD temp0, neg(0.5), temp1, temp0 ; Add -0.5 to the
- * ; selected components
- * ADD temp0, temp0, temp0 ; Poor man's 2x to undo earlier MUL
- *
- * This gives us coords in [0, 1].
- *
- * ~ C.
- */
- if (inst->U.I.Opcode != RC_OPCODE_KIL &&
- (inst->U.I.TexSrcTarget == RC_TEXTURE_RECT ||
- 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 (compiler->state.unit[inst->U.I.TexSrcUnit].fake_npot &&
- wrapmode != RC_WRAP_NONE) {
-
- 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;
- }
-
- if (wrapmode == RC_WRAP_REPEAT) {
- /* Both instructions will be paired up. */
- struct rc_instruction *inst_frc = rc_insert_new_instruction(c, inst->Prev);
- struct rc_instruction *inst_mov = rc_insert_new_instruction(c, inst_frc);
-
- inst_frc->U.I.Opcode = RC_OPCODE_FRC;
- inst_frc->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_frc->U.I.DstReg.Index = temp;
- inst_frc->U.I.DstReg.WriteMask = RC_MASK_XYZ;
- inst_frc->U.I.SrcReg[0] = inst->U.I.SrcReg[0];
-
- /* Preserve W for TXP. */
- inst_mov->U.I.Opcode = RC_OPCODE_MOV;
- inst_mov->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_mov->U.I.DstReg.Index = temp;
- inst_mov->U.I.DstReg.WriteMask = RC_MASK_W;
- 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 = temp;
- } else if (wrapmode == RC_WRAP_MIRROR) {
- unsigned temp1;
- /*
- * MUL temp0, abs(temp0), 0.5
- * FRC temp0, temp0
- * SGE temp1, temp0, 0.5
- * MAD temp0, neg(0.5), temp1, temp0
- * ADD temp0, temp0, temp0
- */
- 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].Swizzle = RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF);
-
- inst_rect = rc_insert_new_instruction(c, inst->Prev);
-
- inst_rect->U.I.Opcode = RC_OPCODE_FRC;
- inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_rect->U.I.DstReg.Index = temp;
- inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst_rect->U.I.SrcReg[0].Index = temp;
-
- temp1 = rc_find_free_temporary(c);
- inst_rect = rc_insert_new_instruction(c, inst->Prev);
-
- inst_rect->U.I.Opcode = RC_OPCODE_SGE;
- inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_rect->U.I.DstReg.Index = temp1;
- inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst_rect->U.I.SrcReg[0].Index = temp;
- inst_rect->U.I.SrcReg[1].Swizzle = RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF);
-
- inst_rect = rc_insert_new_instruction(c, inst->Prev);
-
- inst_rect->U.I.Opcode = RC_OPCODE_MAD;
- inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_rect->U.I.DstReg.Index = temp;
- inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst_rect->U.I.SrcReg[0].Index = temp1;
- inst_rect->U.I.SrcReg[1].Swizzle = RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF);
- inst_rect->U.I.SrcReg[1].Negate = 1;
- inst_rect->U.I.SrcReg[2].File = RC_FILE_TEMPORARY;
- inst_rect->U.I.SrcReg[2].Index = temp;
-
- inst_rect = rc_insert_new_instruction(c, inst->Prev);
-
- inst_rect->U.I.Opcode = RC_OPCODE_ADD;
- inst_rect->U.I.DstReg.File = RC_FILE_TEMPORARY;
- inst_rect->U.I.DstReg.Index = temp;
- inst_rect->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst_rect->U.I.SrcReg[0].Index = temp;
- inst_rect->U.I.SrcReg[1].File = RC_FILE_TEMPORARY;
- inst_rect->U.I.SrcReg[1].Index = temp;
-
- reset_srcreg(&inst->U.I.SrcReg[0]);
- inst->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
- inst->U.I.SrcReg[0].Index = temp;
- }
- }
- }
-
- /* Cannot write texture to output registers */
- if (inst->U.I.Opcode != RC_OPCODE_KIL && inst->U.I.DstReg.File != RC_FILE_TEMPORARY) {
- 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;
-}
-
/**
* Rewrite IF instructions to use the ALU result special register.
*/