src/gallium/drivers/llvmpipe/lp_jit.c

   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,
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  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.
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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.
  25  *
  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
  43 static void
  44 lp_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_LAST_LEVEL] =  LLVMInt32TypeInContext(lc);
  58       elem_types[LP_JIT_TEXTURE_ROW_STRIDE] =
  59       elem_types[LP_JIT_TEXTURE_IMG_STRIDE] =
  60          LLVMArrayType(LLVMInt32TypeInContext(lc), LP_MAX_TEXTURE_LEVELS);
  61       elem_types[LP_JIT_TEXTURE_DATA] =
  62          LLVMArrayType(LLVMPointerType(LLVMInt8TypeInContext(lc), 0),
  63                        LP_MAX_TEXTURE_LEVELS);
  64       elem_types[LP_JIT_TEXTURE_MIN_LOD] =
  65       elem_types[LP_JIT_TEXTURE_MAX_LOD] =
  66       elem_types[LP_JIT_TEXTURE_LOD_BIAS] = LLVMFloatTypeInContext(lc);
  67       elem_types[LP_JIT_TEXTURE_BORDER_COLOR] =
  68          LLVMArrayType(LLVMFloatTypeInContext(lc), 4);
  69
  70       texture_type = LLVMStructTypeInContext(lc, elem_types,
  71                                              Elements(elem_types), 0);
  72
  73       LLVMInvalidateStructLayout(gallivm->target, texture_type);
  74
  75       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, width,
  76                              gallivm->target, texture_type,
  77                              LP_JIT_TEXTURE_WIDTH);
  78       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, height,
  79                              gallivm->target, texture_type,
  80                              LP_JIT_TEXTURE_HEIGHT);
  81       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, depth,
  82                              gallivm->target, texture_type,
  83                              LP_JIT_TEXTURE_DEPTH);
  84       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
  85                              gallivm->target, texture_type,
  86                              LP_JIT_TEXTURE_LAST_LEVEL);
  87       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
  88                              gallivm->target, texture_type,
  89                              LP_JIT_TEXTURE_ROW_STRIDE);
  90       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, img_stride,
  91                              gallivm->target, texture_type,
  92                              LP_JIT_TEXTURE_IMG_STRIDE);
  93       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, data,
  94                              gallivm->target, texture_type,
  95                              LP_JIT_TEXTURE_DATA);
  96       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, min_lod,
  97                              gallivm->target, texture_type,
  98                              LP_JIT_TEXTURE_MIN_LOD);
  99       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, max_lod,
 100                              gallivm->target, texture_type,
 101                              LP_JIT_TEXTURE_MAX_LOD);
 102       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, lod_bias,
 103                              gallivm->target, texture_type,
 104                              LP_JIT_TEXTURE_LOD_BIAS);
 105       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, border_color,
 106                              gallivm->target, texture_type,
 107                              LP_JIT_TEXTURE_BORDER_COLOR);
 108
 109       LP_CHECK_STRUCT_SIZE(struct lp_jit_texture,
 110                            gallivm->target, texture_type);
 111
 112       LLVMAddTypeName(gallivm->module, "texture", texture_type);
 113    }
 114
 115    /* struct lp_jit_context */
 116    {
 117       LLVMTypeRef elem_types[LP_JIT_CTX_COUNT];
 118       LLVMTypeRef context_type;
 119
 120       elem_types[LP_JIT_CTX_CONSTANTS] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
 121       elem_types[LP_JIT_CTX_ALPHA_REF] = LLVMFloatTypeInContext(lc);
 122       elem_types[LP_JIT_CTX_STENCIL_REF_FRONT] =
 123       elem_types[LP_JIT_CTX_STENCIL_REF_BACK] = LLVMInt32TypeInContext(lc);
 124       elem_types[LP_JIT_CTX_BLEND_COLOR] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
 125       elem_types[LP_JIT_CTX_TEXTURES] = LLVMArrayType(texture_type,
 126                                                       PIPE_MAX_SAMPLERS);
 127
 128       context_type = LLVMStructTypeInContext(lc, elem_types,
 129                                              Elements(elem_types), 0);
 130
 131       LLVMInvalidateStructLayout(gallivm->target, context_type);
 132
 133       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, constants,
 134                              gallivm->target, context_type,
 135                              LP_JIT_CTX_CONSTANTS);
 136       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, alpha_ref_value,
 137                              gallivm->target, context_type,
 138                              LP_JIT_CTX_ALPHA_REF);
 139       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_front,
 140                              gallivm->target, context_type,
 141                              LP_JIT_CTX_STENCIL_REF_FRONT);
 142       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_back,
 143                              gallivm->target, context_type,
 144                              LP_JIT_CTX_STENCIL_REF_BACK);
 145       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, blend_color,
 146                              gallivm->target, context_type,
 147                              LP_JIT_CTX_BLEND_COLOR);
 148       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, textures,
 149                              gallivm->target, context_type,
 150                              LP_JIT_CTX_TEXTURES);
 151       LP_CHECK_STRUCT_SIZE(struct lp_jit_context,
 152                            gallivm->target, context_type);
 153
 154       LLVMAddTypeName(gallivm->module, "context", context_type);
 155
 156       lp->jit_context_ptr_type = LLVMPointerType(context_type, 0);
 157    }
 158
 159    if (gallivm_debug & GALLIVM_DEBUG_IR) {
 160       LLVMDumpModule(gallivm->module);
 161    }
 162 }
 163
 164
 165 void
 166 lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
 167 {
 168    /* nothing */
 169 }
 170
 171
 172 void
 173 lp_jit_screen_init(struct llvmpipe_screen *screen)
 174 {
 175    lp_build_init();
 176 }
 177
 178
 179 LLVMTypeRef
 180 lp_jit_get_context_type(struct llvmpipe_context *lp)
 181 {
 182    if (!lp->jit_context_ptr_type)
 183       lp_jit_create_types(lp);
 184
 185    return lp->jit_context_ptr_type;
 186 }