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      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
     22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  **************************************************************************/
     27 
     28 /**
     29  * @file
     30  * C - JIT interfaces
     31  *
     32  * @author Jose Fonseca <jfonseca (at) 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 
     43 static void
     44 lp_jit_create_types(struct lp_fragment_shader_variant *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 #if HAVE_LLVM < 0x0300
     74       LLVMAddTypeName(gallivm->module, "texture", texture_type);
     75 
     76       LLVMInvalidateStructLayout(gallivm->target, texture_type);
     77 #endif
     78 
     79       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, width,
     80                              gallivm->target, texture_type,
     81                              LP_JIT_TEXTURE_WIDTH);
     82       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, height,
     83                              gallivm->target, texture_type,
     84                              LP_JIT_TEXTURE_HEIGHT);
     85       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, depth,
     86                              gallivm->target, texture_type,
     87                              LP_JIT_TEXTURE_DEPTH);
     88       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, first_level,
     89                              gallivm->target, texture_type,
     90                              LP_JIT_TEXTURE_FIRST_LEVEL);
     91       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
     92                              gallivm->target, texture_type,
     93                              LP_JIT_TEXTURE_LAST_LEVEL);
     94       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
     95                              gallivm->target, texture_type,
     96                              LP_JIT_TEXTURE_ROW_STRIDE);
     97       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, img_stride,
     98                              gallivm->target, texture_type,
     99                              LP_JIT_TEXTURE_IMG_STRIDE);
    100       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, data,
    101                              gallivm->target, texture_type,
    102                              LP_JIT_TEXTURE_DATA);
    103       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, min_lod,
    104                              gallivm->target, texture_type,
    105                              LP_JIT_TEXTURE_MIN_LOD);
    106       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, max_lod,
    107                              gallivm->target, texture_type,
    108                              LP_JIT_TEXTURE_MAX_LOD);
    109       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, lod_bias,
    110                              gallivm->target, texture_type,
    111                              LP_JIT_TEXTURE_LOD_BIAS);
    112       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, border_color,
    113                              gallivm->target, texture_type,
    114                              LP_JIT_TEXTURE_BORDER_COLOR);
    115 
    116       LP_CHECK_STRUCT_SIZE(struct lp_jit_texture,
    117                            gallivm->target, texture_type);
    118    }
    119 
    120    /* struct lp_jit_context */
    121    {
    122       LLVMTypeRef elem_types[LP_JIT_CTX_COUNT];
    123       LLVMTypeRef context_type;
    124 
    125       elem_types[LP_JIT_CTX_CONSTANTS] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
    126       elem_types[LP_JIT_CTX_ALPHA_REF] = LLVMFloatTypeInContext(lc);
    127       elem_types[LP_JIT_CTX_STENCIL_REF_FRONT] =
    128       elem_types[LP_JIT_CTX_STENCIL_REF_BACK] = LLVMInt32TypeInContext(lc);
    129       elem_types[LP_JIT_CTX_BLEND_COLOR] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
    130       elem_types[LP_JIT_CTX_TEXTURES] = LLVMArrayType(texture_type,
    131                                                       PIPE_MAX_SAMPLERS);
    132 
    133       context_type = LLVMStructTypeInContext(lc, elem_types,
    134                                              Elements(elem_types), 0);
    135 
    136 #if HAVE_LLVM < 0x0300
    137       LLVMInvalidateStructLayout(gallivm->target, context_type);
    138 
    139       LLVMAddTypeName(gallivm->module, "context", context_type);
    140 #endif
    141 
    142       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, constants,
    143                              gallivm->target, context_type,
    144                              LP_JIT_CTX_CONSTANTS);
    145       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, alpha_ref_value,
    146                              gallivm->target, context_type,
    147                              LP_JIT_CTX_ALPHA_REF);
    148       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_front,
    149                              gallivm->target, context_type,
    150                              LP_JIT_CTX_STENCIL_REF_FRONT);
    151       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_back,
    152                              gallivm->target, context_type,
    153                              LP_JIT_CTX_STENCIL_REF_BACK);
    154       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, blend_color,
    155                              gallivm->target, context_type,
    156                              LP_JIT_CTX_BLEND_COLOR);
    157       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, textures,
    158                              gallivm->target, context_type,
    159                              LP_JIT_CTX_TEXTURES);
    160       LP_CHECK_STRUCT_SIZE(struct lp_jit_context,
    161                            gallivm->target, context_type);
    162 
    163       lp->jit_context_ptr_type = LLVMPointerType(context_type, 0);
    164    }
    165 
    166    if (gallivm_debug & GALLIVM_DEBUG_IR) {
    167       LLVMDumpModule(gallivm->module);
    168    }
    169 }
    170 
    171 
    172 void
    173 lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
    174 {
    175    /* nothing */
    176 }
    177 
    178 
    179 void
    180 lp_jit_screen_init(struct llvmpipe_screen *screen)
    181 {
    182    lp_build_init();
    183 }
    184 
    185 
    186 void
    187 lp_jit_init_types(struct lp_fragment_shader_variant *lp)
    188 {
    189    if (!lp->jit_context_ptr_type)
    190       lp_jit_create_types(lp);
    191 }
    192