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
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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 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_BASE] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
  60       elem_types[LP_JIT_TEXTURE_ROW_STRIDE] =
  61       elem_types[LP_JIT_TEXTURE_IMG_STRIDE] =
  62       elem_types[LP_JIT_TEXTURE_MIP_OFFSETS] =
  63          LLVMArrayType(LLVMInt32TypeInContext(lc), 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 #if HAVE_LLVM < 0x0300
  73       LLVMAddTypeName(gallivm->module, "texture", texture_type);
  74
  75       LLVMInvalidateStructLayout(gallivm->target, texture_type);
  76 #endif
  77
  78       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, width,
  79                              gallivm->target, texture_type,
  80                              LP_JIT_TEXTURE_WIDTH);
  81       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, height,
  82                              gallivm->target, texture_type,
  83                              LP_JIT_TEXTURE_HEIGHT);
  84       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, depth,
  85                              gallivm->target, texture_type,
  86                              LP_JIT_TEXTURE_DEPTH);
  87       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, first_level,
  88                              gallivm->target, texture_type,
  89                              LP_JIT_TEXTURE_FIRST_LEVEL);
  90       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
  91                              gallivm->target, texture_type,
  92                              LP_JIT_TEXTURE_LAST_LEVEL);
  93       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, base,
  94                              gallivm->target, texture_type,
  95                              LP_JIT_TEXTURE_BASE);
  96       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
  97                              gallivm->target, texture_type,
  98                              LP_JIT_TEXTURE_ROW_STRIDE);
  99       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, img_stride,
 100                              gallivm->target, texture_type,
 101                              LP_JIT_TEXTURE_IMG_STRIDE);
 102       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, mip_offsets,
 103                              gallivm->target, texture_type,
 104                              LP_JIT_TEXTURE_MIP_OFFSETS);
 105       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, min_lod,
 106                              gallivm->target, texture_type,
 107                              LP_JIT_TEXTURE_MIN_LOD);
 108       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, max_lod,
 109                              gallivm->target, texture_type,
 110                              LP_JIT_TEXTURE_MAX_LOD);
 111       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, lod_bias,
 112                              gallivm->target, texture_type,
 113                              LP_JIT_TEXTURE_LOD_BIAS);
 114       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, border_color,
 115                              gallivm->target, texture_type,
 116                              LP_JIT_TEXTURE_BORDER_COLOR);
 117
 118       LP_CHECK_STRUCT_SIZE(struct lp_jit_texture,
 119                            gallivm->target, texture_type);
 120    }
 121
 122    /* struct lp_jit_context */
 123    {
 124       LLVMTypeRef elem_types[LP_JIT_CTX_COUNT];
 125       LLVMTypeRef context_type;
 126
 127       elem_types[LP_JIT_CTX_CONSTANTS] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
 128       elem_types[LP_JIT_CTX_ALPHA_REF] = LLVMFloatTypeInContext(lc);
 129       elem_types[LP_JIT_CTX_STENCIL_REF_FRONT] =
 130       elem_types[LP_JIT_CTX_STENCIL_REF_BACK] = LLVMInt32TypeInContext(lc);
 131       elem_types[LP_JIT_CTX_U8_BLEND_COLOR] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
 132       elem_types[LP_JIT_CTX_F_BLEND_COLOR] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
 133       elem_types[LP_JIT_CTX_TEXTURES] = LLVMArrayType(texture_type,
 134                                                       PIPE_MAX_SAMPLERS);
 135
 136       context_type = LLVMStructTypeInContext(lc, elem_types,
 137                                              Elements(elem_types), 0);
 138
 139 #if HAVE_LLVM < 0x0300
 140       LLVMInvalidateStructLayout(gallivm->target, context_type);
 141
 142       LLVMAddTypeName(gallivm->module, "context", context_type);
 143 #endif
 144
 145       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, constants,
 146                              gallivm->target, context_type,
 147                              LP_JIT_CTX_CONSTANTS);
 148       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, alpha_ref_value,
 149                              gallivm->target, context_type,
 150                              LP_JIT_CTX_ALPHA_REF);
 151       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_front,
 152                              gallivm->target, context_type,
 153                              LP_JIT_CTX_STENCIL_REF_FRONT);
 154       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_back,
 155                              gallivm->target, context_type,
 156                              LP_JIT_CTX_STENCIL_REF_BACK);
 157       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, u8_blend_color,
 158                              gallivm->target, context_type,
 159                              LP_JIT_CTX_U8_BLEND_COLOR);
 160       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, f_blend_color,
 161                              gallivm->target, context_type,
 162                              LP_JIT_CTX_F_BLEND_COLOR);
 163       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, textures,
 164                              gallivm->target, context_type,
 165                              LP_JIT_CTX_TEXTURES);
 166       LP_CHECK_STRUCT_SIZE(struct lp_jit_context,
 167                            gallivm->target, context_type);
 168
 169       lp->jit_context_ptr_type = LLVMPointerType(context_type, 0);
 170    }
 171
 172    if (gallivm_debug & GALLIVM_DEBUG_IR) {
 173       LLVMDumpModule(gallivm->module);
 174    }
 175 }
 176
 177
 178 void
 179 lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
 180 {
 181    /* nothing */
 182 }
 183
 184
 185 void
 186 lp_jit_screen_init(struct llvmpipe_screen *screen)
 187 {
 188    lp_build_init();
 189 }
 190
 191
 192 void
 193 lp_jit_init_types(struct lp_fragment_shader_variant *lp)
 194 {
 195    if (!lp->jit_context_ptr_type)
 196       lp_jit_create_types(lp);
 197 }