lp_jit.c revision 3464ebd5 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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26 **************************************************************************/
27
28/**
29 * @file
30 * C - JIT interfaces
31 *
32 * @author Jose Fonseca <jfonseca@vmware.com>
33 */
34
35
36#include "util/u_memory.h"
37#include "gallivm/lp_bld_init.h"
38#include "gallivm/lp_bld_debug.h"
39#include "lp_context.h"
40#include "lp_jit.h"
41
42
43static void
44lp_jit_create_types(struct llvmpipe_context *lp)
45{
46   struct gallivm_state *gallivm = lp->gallivm;
47   LLVMContextRef lc = gallivm->context;
48   LLVMTypeRef texture_type;
49
50   /* struct lp_jit_texture */
51   {
52      LLVMTypeRef elem_types[LP_JIT_TEXTURE_NUM_FIELDS];
53
54      elem_types[LP_JIT_TEXTURE_WIDTH]  =
55      elem_types[LP_JIT_TEXTURE_HEIGHT] =
56      elem_types[LP_JIT_TEXTURE_DEPTH] =
57      elem_types[LP_JIT_TEXTURE_FIRST_LEVEL] =
58      elem_types[LP_JIT_TEXTURE_LAST_LEVEL] =  LLVMInt32TypeInContext(lc);
59      elem_types[LP_JIT_TEXTURE_ROW_STRIDE] =
60      elem_types[LP_JIT_TEXTURE_IMG_STRIDE] =
61         LLVMArrayType(LLVMInt32TypeInContext(lc), LP_MAX_TEXTURE_LEVELS);
62      elem_types[LP_JIT_TEXTURE_DATA] =
63         LLVMArrayType(LLVMPointerType(LLVMInt8TypeInContext(lc), 0),
64                       LP_MAX_TEXTURE_LEVELS);
65      elem_types[LP_JIT_TEXTURE_MIN_LOD] =
66      elem_types[LP_JIT_TEXTURE_MAX_LOD] =
67      elem_types[LP_JIT_TEXTURE_LOD_BIAS] = LLVMFloatTypeInContext(lc);
68      elem_types[LP_JIT_TEXTURE_BORDER_COLOR] =
69         LLVMArrayType(LLVMFloatTypeInContext(lc), 4);
70
71      texture_type = LLVMStructTypeInContext(lc, elem_types,
72                                             Elements(elem_types), 0);
73
74      LLVMInvalidateStructLayout(gallivm->target, texture_type);
75
76      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, width,
77                             gallivm->target, texture_type,
78                             LP_JIT_TEXTURE_WIDTH);
79      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, height,
80                             gallivm->target, texture_type,
81                             LP_JIT_TEXTURE_HEIGHT);
82      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, depth,
83                             gallivm->target, texture_type,
84                             LP_JIT_TEXTURE_DEPTH);
85      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, first_level,
86                             gallivm->target, texture_type,
87                             LP_JIT_TEXTURE_FIRST_LEVEL);
88      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
89                             gallivm->target, texture_type,
90                             LP_JIT_TEXTURE_LAST_LEVEL);
91      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
92                             gallivm->target, texture_type,
93                             LP_JIT_TEXTURE_ROW_STRIDE);
94      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, img_stride,
95                             gallivm->target, texture_type,
96                             LP_JIT_TEXTURE_IMG_STRIDE);
97      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, data,
98                             gallivm->target, texture_type,
99                             LP_JIT_TEXTURE_DATA);
100      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, min_lod,
101                             gallivm->target, texture_type,
102                             LP_JIT_TEXTURE_MIN_LOD);
103      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, max_lod,
104                             gallivm->target, texture_type,
105                             LP_JIT_TEXTURE_MAX_LOD);
106      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, lod_bias,
107                             gallivm->target, texture_type,
108                             LP_JIT_TEXTURE_LOD_BIAS);
109      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, border_color,
110                             gallivm->target, texture_type,
111                             LP_JIT_TEXTURE_BORDER_COLOR);
112
113      LP_CHECK_STRUCT_SIZE(struct lp_jit_texture,
114                           gallivm->target, texture_type);
115
116      LLVMAddTypeName(gallivm->module, "texture", texture_type);
117   }
118
119   /* struct lp_jit_context */
120   {
121      LLVMTypeRef elem_types[LP_JIT_CTX_COUNT];
122      LLVMTypeRef context_type;
123
124      elem_types[LP_JIT_CTX_CONSTANTS] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
125      elem_types[LP_JIT_CTX_ALPHA_REF] = LLVMFloatTypeInContext(lc);
126      elem_types[LP_JIT_CTX_STENCIL_REF_FRONT] =
127      elem_types[LP_JIT_CTX_STENCIL_REF_BACK] = LLVMInt32TypeInContext(lc);
128      elem_types[LP_JIT_CTX_BLEND_COLOR] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
129      elem_types[LP_JIT_CTX_TEXTURES] = LLVMArrayType(texture_type,
130                                                      PIPE_MAX_SAMPLERS);
131
132      context_type = LLVMStructTypeInContext(lc, elem_types,
133                                             Elements(elem_types), 0);
134
135      LLVMInvalidateStructLayout(gallivm->target, context_type);
136
137      LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, constants,
138                             gallivm->target, context_type,
139                             LP_JIT_CTX_CONSTANTS);
140      LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, alpha_ref_value,
141                             gallivm->target, context_type,
142                             LP_JIT_CTX_ALPHA_REF);
143      LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_front,
144                             gallivm->target, context_type,
145                             LP_JIT_CTX_STENCIL_REF_FRONT);
146      LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_back,
147                             gallivm->target, context_type,
148                             LP_JIT_CTX_STENCIL_REF_BACK);
149      LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, blend_color,
150                             gallivm->target, context_type,
151                             LP_JIT_CTX_BLEND_COLOR);
152      LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, textures,
153                             gallivm->target, context_type,
154                             LP_JIT_CTX_TEXTURES);
155      LP_CHECK_STRUCT_SIZE(struct lp_jit_context,
156                           gallivm->target, context_type);
157
158      LLVMAddTypeName(gallivm->module, "context", context_type);
159
160      lp->jit_context_ptr_type = LLVMPointerType(context_type, 0);
161   }
162
163   if (gallivm_debug & GALLIVM_DEBUG_IR) {
164      LLVMDumpModule(gallivm->module);
165   }
166}
167
168
169void
170lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
171{
172   /* nothing */
173}
174
175
176void
177lp_jit_screen_init(struct llvmpipe_screen *screen)
178{
179   lp_build_init();
180}
181
182
183LLVMTypeRef
184lp_jit_get_context_type(struct llvmpipe_context *lp)
185{
186   if (!lp->jit_context_ptr_type)
187      lp_jit_create_types(lp);
188
189   return lp->jit_context_ptr_type;
190}
191