diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/radeon_code.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_code.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_code.c b/src/mesa/drivers/dri/r300/compiler/radeon_code.c new file mode 100644 index 0000000000..c7923004df --- /dev/null +++ b/src/mesa/drivers/dri/r300/compiler/radeon_code.c @@ -0,0 +1,170 @@ +/* + * Copyright (C) 2009 Nicolai Haehnle. + * + * 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, sublicense, 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 NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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. + * + */ + +#include "main/mtypes.h" +#include "shader/prog_instruction.h" + +#include "radeon_code.h" + +void rc_constants_init(struct rc_constant_list * c) +{ + memset(c, 0, sizeof(*c)); +} + +/** + * Copy a constants structure, assuming that the destination structure + * is not initialized. + */ +void rc_constants_copy(struct rc_constant_list * dst, struct rc_constant_list * src) +{ + dst->Constants = malloc(sizeof(struct rc_constant) * src->Count); + memcpy(dst->Constants, src->Constants, sizeof(struct rc_constant) * src->Count); + dst->Count = src->Count; + dst->_Reserved = src->Count; +} + +void rc_constants_destroy(struct rc_constant_list * c) +{ + free(c->Constants); + memset(c, 0, sizeof(*c)); +} + +unsigned rc_constants_add(struct rc_constant_list * c, struct rc_constant * constant) +{ + unsigned index = c->Count; + + if (c->Count >= c->_Reserved) { + struct rc_constant * newlist; + + c->_Reserved = c->_Reserved * 2; + if (!c->_Reserved) + c->_Reserved = 16; + + newlist = malloc(sizeof(struct rc_constant) * c->_Reserved); + memcpy(newlist, c->Constants, sizeof(struct rc_constant) * c->Count); + + free(c->Constants); + c->Constants = newlist; + } + + c->Constants[index] = *constant; + c->Count++; + + return index; +} + + +/** + * Add a state vector to the constant list, while trying to avoid duplicates. + */ +unsigned rc_constants_add_state(struct rc_constant_list * c, unsigned state0, unsigned state1) +{ + unsigned index; + struct rc_constant constant; + + for(index = 0; index < c->Count; ++index) { + if (c->Constants[index].Type == RC_CONSTANT_STATE) { + if (c->Constants[index].u.State[0] == state0 && + c->Constants[index].u.State[1] == state1) + return index; + } + } + + memset(&constant, 0, sizeof(constant)); + constant.Type = RC_CONSTANT_STATE; + constant.Size = 4; + constant.u.State[0] = state0; + constant.u.State[1] = state1; + + return rc_constants_add(c, &constant); +} + + +/** + * Add an immediate vector to the constant list, while trying to avoid + * duplicates. + */ +unsigned rc_constants_add_immediate_vec4(struct rc_constant_list * c, const float * data) +{ + unsigned index; + struct rc_constant constant; + + for(index = 0; index < c->Count; ++index) { + if (c->Constants[index].Type == RC_CONSTANT_IMMEDIATE) { + if (!memcmp(c->Constants[index].u.Immediate, data, sizeof(float)*4)) + return index; + } + } + + memset(&constant, 0, sizeof(constant)); + constant.Type = RC_CONSTANT_IMMEDIATE; + constant.Size = 4; + memcpy(constant.u.Immediate, data, sizeof(float) * 4); + + return rc_constants_add(c, &constant); +} + + +/** + * Add an immediate scalar to the constant list, while trying to avoid + * duplicates. + */ +unsigned rc_constants_add_immediate_scalar(struct rc_constant_list * c, float data, unsigned * swizzle) +{ + unsigned index; + int free_index = -1; + struct rc_constant constant; + + for(index = 0; index < c->Count; ++index) { + if (c->Constants[index].Type == RC_CONSTANT_IMMEDIATE) { + for(unsigned comp = 0; comp < c->Constants[index].Size; ++comp) { + if (c->Constants[index].u.Immediate[comp] == data) { + *swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp); + return index; + } + } + + if (c->Constants[index].Size < 4) + free_index = index; + } + } + + if (free_index >= 0) { + unsigned comp = c->Constants[free_index].Size++; + c->Constants[free_index].u.Immediate[comp] = data; + *swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp); + return free_index; + } + + memset(&constant, 0, sizeof(constant)); + constant.Type = RC_CONSTANT_IMMEDIATE; + constant.Size = 1; + constant.u.Immediate[0] = data; + *swizzle = SWIZZLE_XXXX; + + return rc_constants_add(c, &constant); +} |