src/gallium/drivers/llvmpipe/lp_jit.c

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  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       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
 169 void
 170 lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
 171 {
 172    /* nothing */
 173 }
 174
 175
 176 void
 177 lp_jit_screen_init(struct llvmpipe_screen *screen)
 178 {
 179    lp_build_init();
 180 }
 181
 182
 183 LLVMTypeRef
 184 lp_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 }