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,
  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@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_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 #if HAVE_LLVM >= 0x0300
  72    texture_type = LLVMStructCreateNamed(gallivm->context, "texture");
  73    LLVMStructSetBody(texture_type, elem_types,
  74                      Elements(elem_types), 0);
  75 #else
  76       texture_type = LLVMStructTypeInContext(lc, elem_types,
  77                                              Elements(elem_types), 0);
  78       LLVMAddTypeName(gallivm->module, "texture", texture_type);
  79
  80       LLVMInvalidateStructLayout(gallivm->target, texture_type);
  81 #endif
  82
  83       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, width,
  84                              gallivm->target, texture_type,
  85                              LP_JIT_TEXTURE_WIDTH);
  86       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, height,
  87                              gallivm->target, texture_type,
  88                              LP_JIT_TEXTURE_HEIGHT);
  89       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, depth,
  90                              gallivm->target, texture_type,
  91                              LP_JIT_TEXTURE_DEPTH);
  92       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, first_level,
  93                              gallivm->target, texture_type,
  94                              LP_JIT_TEXTURE_FIRST_LEVEL);
  95       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
  96                              gallivm->target, texture_type,
  97                              LP_JIT_TEXTURE_LAST_LEVEL);
  98       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
  99                              gallivm->target, texture_type,
 100                              LP_JIT_TEXTURE_ROW_STRIDE);
 101       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, img_stride,
 102                              gallivm->target, texture_type,
 103                              LP_JIT_TEXTURE_IMG_STRIDE);
 104       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, data,
 105                              gallivm->target, texture_type,
 106                              LP_JIT_TEXTURE_DATA);
 107       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, min_lod,
 108                              gallivm->target, texture_type,
 109                              LP_JIT_TEXTURE_MIN_LOD);
 110       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, max_lod,
 111                              gallivm->target, texture_type,
 112                              LP_JIT_TEXTURE_MAX_LOD);
 113       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, lod_bias,
 114                              gallivm->target, texture_type,
 115                              LP_JIT_TEXTURE_LOD_BIAS);
 116       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, border_color,
 117                              gallivm->target, texture_type,
 118                              LP_JIT_TEXTURE_BORDER_COLOR);
 119
 120       LP_CHECK_STRUCT_SIZE(struct lp_jit_texture,
 121                            gallivm->target, texture_type);
 122    }
 123
 124    /* struct lp_jit_context */
 125    {
 126       LLVMTypeRef elem_types[LP_JIT_CTX_COUNT];
 127       LLVMTypeRef context_type;
 128
 129       elem_types[LP_JIT_CTX_CONSTANTS] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
 130       elem_types[LP_JIT_CTX_ALPHA_REF] = LLVMFloatTypeInContext(lc);
 131       elem_types[LP_JIT_CTX_STENCIL_REF_FRONT] =
 132       elem_types[LP_JIT_CTX_STENCIL_REF_BACK] = LLVMInt32TypeInContext(lc);
 133       elem_types[LP_JIT_CTX_BLEND_COLOR] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
 134       elem_types[LP_JIT_CTX_TEXTURES] = LLVMArrayType(texture_type,
 135                                                       PIPE_MAX_SAMPLERS);
 136
 137 #if HAVE_LLVM >= 0x0300
 138    context_type = LLVMStructCreateNamed(gallivm->context, "context");
 139    LLVMStructSetBody(context_type, elem_types,
 140                      Elements(elem_types), 0);
 141 #else
 142       context_type = LLVMStructTypeInContext(lc, elem_types,
 143                                              Elements(elem_types), 0);
 144
 145       LLVMInvalidateStructLayout(gallivm->target, context_type);
 146
 147       LLVMAddTypeName(gallivm->module, "context", context_type);
 148 #endif
 149
 150       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, constants,
 151                              gallivm->target, context_type,
 152                              LP_JIT_CTX_CONSTANTS);
 153       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, alpha_ref_value,
 154                              gallivm->target, context_type,
 155                              LP_JIT_CTX_ALPHA_REF);
 156       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_front,
 157                              gallivm->target, context_type,
 158                              LP_JIT_CTX_STENCIL_REF_FRONT);
 159       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_back,
 160                              gallivm->target, context_type,
 161                              LP_JIT_CTX_STENCIL_REF_BACK);
 162       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, blend_color,
 163                              gallivm->target, context_type,
 164                              LP_JIT_CTX_BLEND_COLOR);
 165       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, textures,
 166                              gallivm->target, context_type,
 167                              LP_JIT_CTX_TEXTURES);
 168       LP_CHECK_STRUCT_SIZE(struct lp_jit_context,
 169                            gallivm->target, context_type);
 170
 171       lp->jit_context_ptr_type = LLVMPointerType(context_type, 0);
 172    }
 173
 174    if (gallivm_debug & GALLIVM_DEBUG_IR) {
 175       LLVMDumpModule(gallivm->module);
 176    }
 177 }
 178
 179
 180 void
 181 lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
 182 {
 183    /* nothing */
 184 }
 185
 186
 187 void
 188 lp_jit_screen_init(struct llvmpipe_screen *screen)
 189 {
 190    lp_build_init();
 191 }
 192
 193
 194 LLVMTypeRef
 195 lp_jit_get_context_type(struct llvmpipe_context *lp)
 196 {
 197    if (!lp->jit_context_ptr_type)
 198       lp_jit_create_types(lp);
 199
 200    return lp->jit_context_ptr_type;
 201 }