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-rw-r--r--src/gallium/drivers/i915simple/i915_fpc.h207
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diff --git a/src/gallium/drivers/i915simple/i915_fpc.h b/src/gallium/drivers/i915simple/i915_fpc.h
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+++ b/src/gallium/drivers/i915simple/i915_fpc.h
@@ -0,0 +1,207 @@
+/**************************************************************************
+ *
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#ifndef I915_FPC_H
+#define I915_FPC_H
+
+
+#include "i915_context.h"
+#include "i915_reg.h"
+
+
+
+#define I915_PROGRAM_SIZE 192
+
+
+
+/**
+ * Program translation state
+ */
+struct i915_fp_compile {
+ struct i915_fragment_shader *shader; /* the shader we're compiling */
+
+ boolean used_constants[I915_MAX_CONSTANT];
+
+ /** maps TGSI immediate index to constant slot */
+ uint num_immediates;
+ uint immediates_map[I915_MAX_CONSTANT];
+ float immediates[I915_MAX_CONSTANT][4];
+
+ boolean first_instruction;
+
+ uint declarations[I915_PROGRAM_SIZE];
+ uint program[I915_PROGRAM_SIZE];
+
+ uint *csr; /**< Cursor, points into program. */
+
+ uint *decl; /**< Cursor, points into declarations. */
+
+ uint decl_s; /**< flags for which s regs need to be decl'd */
+ uint decl_t; /**< flags for which t regs need to be decl'd */
+
+ uint temp_flag; /**< Tracks temporary regs which are in use */
+ uint utemp_flag; /**< Tracks TYPE_U temporary regs which are in use */
+
+ uint nr_tex_indirect;
+ uint nr_tex_insn;
+ uint nr_alu_insn;
+ uint nr_decl_insn;
+
+ boolean error; /**< Set if i915_program_error() is called */
+ uint wpos_tex;
+ uint NumNativeInstructions;
+ uint NumNativeAluInstructions;
+ uint NumNativeTexInstructions;
+ uint NumNativeTexIndirections;
+};
+
+
+/* Having zero and one in here makes the definition of swizzle a lot
+ * easier.
+ */
+#define UREG_TYPE_SHIFT 29
+#define UREG_NR_SHIFT 24
+#define UREG_CHANNEL_X_NEGATE_SHIFT 23
+#define UREG_CHANNEL_X_SHIFT 20
+#define UREG_CHANNEL_Y_NEGATE_SHIFT 19
+#define UREG_CHANNEL_Y_SHIFT 16
+#define UREG_CHANNEL_Z_NEGATE_SHIFT 15
+#define UREG_CHANNEL_Z_SHIFT 12
+#define UREG_CHANNEL_W_NEGATE_SHIFT 11
+#define UREG_CHANNEL_W_SHIFT 8
+#define UREG_CHANNEL_ZERO_NEGATE_MBZ 5
+#define UREG_CHANNEL_ZERO_SHIFT 4
+#define UREG_CHANNEL_ONE_NEGATE_MBZ 1
+#define UREG_CHANNEL_ONE_SHIFT 0
+
+#define UREG_BAD 0xffffffff /* not a valid ureg */
+
+#define X SRC_X
+#define Y SRC_Y
+#define Z SRC_Z
+#define W SRC_W
+#define ZERO SRC_ZERO
+#define ONE SRC_ONE
+
+/* Construct a ureg:
+ */
+#define UREG( type, nr ) (((type)<< UREG_TYPE_SHIFT) | \
+ ((nr) << UREG_NR_SHIFT) | \
+ (X << UREG_CHANNEL_X_SHIFT) | \
+ (Y << UREG_CHANNEL_Y_SHIFT) | \
+ (Z << UREG_CHANNEL_Z_SHIFT) | \
+ (W << UREG_CHANNEL_W_SHIFT) | \
+ (ZERO << UREG_CHANNEL_ZERO_SHIFT) | \
+ (ONE << UREG_CHANNEL_ONE_SHIFT))
+
+#define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20))
+#define CHANNEL_SRC( src, channel ) (src>>(channel*4))
+
+#define GET_UREG_TYPE(reg) (((reg)>>UREG_TYPE_SHIFT)&REG_TYPE_MASK)
+#define GET_UREG_NR(reg) (((reg)>>UREG_NR_SHIFT)&REG_NR_MASK)
+
+
+
+#define UREG_XYZW_CHANNEL_MASK 0x00ffff00
+
+/* One neat thing about the UREG representation:
+ */
+static INLINE int
+swizzle(int reg, uint x, uint y, uint z, uint w)
+{
+ assert(x <= SRC_ONE);
+ assert(y <= SRC_ONE);
+ assert(z <= SRC_ONE);
+ assert(w <= SRC_ONE);
+ return ((reg & ~UREG_XYZW_CHANNEL_MASK) |
+ CHANNEL_SRC(GET_CHANNEL_SRC(reg, x), 0) |
+ CHANNEL_SRC(GET_CHANNEL_SRC(reg, y), 1) |
+ CHANNEL_SRC(GET_CHANNEL_SRC(reg, z), 2) |
+ CHANNEL_SRC(GET_CHANNEL_SRC(reg, w), 3));
+}
+
+
+
+/***********************************************************************
+ * Public interface for the compiler
+ */
+extern void
+i915_translate_fragment_program( struct i915_context *i915,
+ struct i915_fragment_shader *fs);
+
+
+
+extern uint i915_get_temp(struct i915_fp_compile *p);
+extern uint i915_get_utemp(struct i915_fp_compile *p);
+extern void i915_release_utemps(struct i915_fp_compile *p);
+
+
+extern uint i915_emit_texld(struct i915_fp_compile *p,
+ uint dest,
+ uint destmask,
+ uint sampler, uint coord, uint op);
+
+extern uint i915_emit_arith(struct i915_fp_compile *p,
+ uint op,
+ uint dest,
+ uint mask,
+ uint saturate,
+ uint src0, uint src1, uint src2);
+
+extern uint i915_emit_decl(struct i915_fp_compile *p,
+ uint type, uint nr, uint d0_flags);
+
+
+extern uint i915_emit_const1f(struct i915_fp_compile *p, float c0);
+
+extern uint i915_emit_const2f(struct i915_fp_compile *p,
+ float c0, float c1);
+
+extern uint i915_emit_const4fv(struct i915_fp_compile *p,
+ const float * c);
+
+extern uint i915_emit_const4f(struct i915_fp_compile *p,
+ float c0, float c1,
+ float c2, float c3);
+
+
+/*======================================================================
+ * i915_fpc_debug.c
+ */
+extern void i915_disassemble_program(const uint * program, uint sz);
+
+
+/*======================================================================
+ * i915_fpc_translate.c
+ */
+
+extern void
+i915_program_error(struct i915_fp_compile *p, const char *msg, ...);
+
+
+#endif