src/gallium/drivers/llvmpipe/lp_jit.c

   1 /**************************************************************************
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   3  * Copyright 2009 VMware, Inc.
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  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 "gallivm/lp_bld_format.h"
  40 #include "lp_context.h"
  41 #include "lp_jit.h"
  42
  43 static LLVMTypeRef
  44 create_jit_texture_type(struct gallivm_state *gallivm)
  45 {
  46    LLVMContextRef lc = gallivm->context;
  47    LLVMTypeRef texture_type;
  48    LLVMTypeRef elem_types[LP_JIT_TEXTURE_NUM_FIELDS];
  49
  50    /* struct lp_jit_texture */
  51    elem_types[LP_JIT_TEXTURE_WIDTH]  =
  52    elem_types[LP_JIT_TEXTURE_HEIGHT] =
  53    elem_types[LP_JIT_TEXTURE_DEPTH] =
  54    elem_types[LP_JIT_TEXTURE_FIRST_LEVEL] =
  55    elem_types[LP_JIT_TEXTURE_LAST_LEVEL] = LLVMInt32TypeInContext(lc);
  56    elem_types[LP_JIT_TEXTURE_BASE] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
  57    elem_types[LP_JIT_TEXTURE_ROW_STRIDE] =
  58    elem_types[LP_JIT_TEXTURE_IMG_STRIDE] =
  59    elem_types[LP_JIT_TEXTURE_MIP_OFFSETS] =
  60       LLVMArrayType(LLVMInt32TypeInContext(lc), LP_MAX_TEXTURE_LEVELS);
  61
  62    texture_type = LLVMStructTypeInContext(lc, elem_types,
  63                                           ARRAY_SIZE(elem_types), 0);
  64
  65    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, width,
  66                           gallivm->target, texture_type,
  67                           LP_JIT_TEXTURE_WIDTH);
  68    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, height,
  69                           gallivm->target, texture_type,
  70                           LP_JIT_TEXTURE_HEIGHT);
  71    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, depth,
  72                           gallivm->target, texture_type,
  73                           LP_JIT_TEXTURE_DEPTH);
  74    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, first_level,
  75                           gallivm->target, texture_type,
  76                           LP_JIT_TEXTURE_FIRST_LEVEL);
  77    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
  78                           gallivm->target, texture_type,
  79                           LP_JIT_TEXTURE_LAST_LEVEL);
  80    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, base,
  81                           gallivm->target, texture_type,
  82                           LP_JIT_TEXTURE_BASE);
  83    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
  84                           gallivm->target, texture_type,
  85                           LP_JIT_TEXTURE_ROW_STRIDE);
  86    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, img_stride,
  87                           gallivm->target, texture_type,
  88                           LP_JIT_TEXTURE_IMG_STRIDE);
  89    LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, mip_offsets,
  90                           gallivm->target, texture_type,
  91                           LP_JIT_TEXTURE_MIP_OFFSETS);
  92    LP_CHECK_STRUCT_SIZE(struct lp_jit_texture,
  93                         gallivm->target, texture_type);
  94    return texture_type;
  95 }
  96
  97 static LLVMTypeRef
  98 create_jit_sampler_type(struct gallivm_state *gallivm)
  99 {
 100    LLVMContextRef lc = gallivm->context;
 101    LLVMTypeRef sampler_type;
 102    LLVMTypeRef elem_types[LP_JIT_SAMPLER_NUM_FIELDS];
 103    elem_types[LP_JIT_SAMPLER_MIN_LOD] =
 104    elem_types[LP_JIT_SAMPLER_MAX_LOD] =
 105    elem_types[LP_JIT_SAMPLER_LOD_BIAS] = LLVMFloatTypeInContext(lc);
 106    elem_types[LP_JIT_SAMPLER_BORDER_COLOR] =
 107       LLVMArrayType(LLVMFloatTypeInContext(lc), 4);
 108
 109    sampler_type = LLVMStructTypeInContext(lc, elem_types,
 110                                           ARRAY_SIZE(elem_types), 0);
 111
 112    LP_CHECK_MEMBER_OFFSET(struct lp_jit_sampler, min_lod,
 113                           gallivm->target, sampler_type,
 114                           LP_JIT_SAMPLER_MIN_LOD);
 115    LP_CHECK_MEMBER_OFFSET(struct lp_jit_sampler, max_lod,
 116                           gallivm->target, sampler_type,
 117                           LP_JIT_SAMPLER_MAX_LOD);
 118    LP_CHECK_MEMBER_OFFSET(struct lp_jit_sampler, lod_bias,
 119                           gallivm->target, sampler_type,
 120                           LP_JIT_SAMPLER_LOD_BIAS);
 121    LP_CHECK_MEMBER_OFFSET(struct lp_jit_sampler, border_color,
 122                           gallivm->target, sampler_type,
 123                           LP_JIT_SAMPLER_BORDER_COLOR);
 124    LP_CHECK_STRUCT_SIZE(struct lp_jit_sampler,
 125                         gallivm->target, sampler_type);
 126    return sampler_type;
 127 }
 128
 129 static void
 130 lp_jit_create_types(struct lp_fragment_shader_variant *lp)
 131 {
 132    struct gallivm_state *gallivm = lp->gallivm;
 133    LLVMContextRef lc = gallivm->context;
 134    LLVMTypeRef viewport_type, texture_type, sampler_type;
 135
 136    /* struct lp_jit_viewport */
 137    {
 138       LLVMTypeRef elem_types[LP_JIT_VIEWPORT_NUM_FIELDS];
 139
 140       elem_types[LP_JIT_VIEWPORT_MIN_DEPTH] =
 141       elem_types[LP_JIT_VIEWPORT_MAX_DEPTH] = LLVMFloatTypeInContext(lc);
 142
 143       viewport_type = LLVMStructTypeInContext(lc, elem_types,
 144                                               ARRAY_SIZE(elem_types), 0);
 145
 146       LP_CHECK_MEMBER_OFFSET(struct lp_jit_viewport, min_depth,
 147                              gallivm->target, viewport_type,
 148                              LP_JIT_VIEWPORT_MIN_DEPTH);
 149       LP_CHECK_MEMBER_OFFSET(struct lp_jit_viewport, max_depth,
 150                              gallivm->target, viewport_type,
 151                              LP_JIT_VIEWPORT_MAX_DEPTH);
 152       LP_CHECK_STRUCT_SIZE(struct lp_jit_viewport,
 153                            gallivm->target, viewport_type);
 154    }
 155
 156    texture_type = create_jit_texture_type(gallivm);
 157    sampler_type = create_jit_sampler_type(gallivm);
 158
 159    /* struct lp_jit_context */
 160    {
 161       LLVMTypeRef elem_types[LP_JIT_CTX_COUNT];
 162       LLVMTypeRef context_type;
 163
 164       elem_types[LP_JIT_CTX_CONSTANTS] =
 165          LLVMArrayType(LLVMPointerType(LLVMFloatTypeInContext(lc), 0), LP_MAX_TGSI_CONST_BUFFERS);
 166       elem_types[LP_JIT_CTX_NUM_CONSTANTS] =
 167             LLVMArrayType(LLVMInt32TypeInContext(lc), LP_MAX_TGSI_CONST_BUFFERS);
 168       elem_types[LP_JIT_CTX_ALPHA_REF] = LLVMFloatTypeInContext(lc);
 169       elem_types[LP_JIT_CTX_STENCIL_REF_FRONT] =
 170       elem_types[LP_JIT_CTX_STENCIL_REF_BACK] = LLVMInt32TypeInContext(lc);
 171       elem_types[LP_JIT_CTX_U8_BLEND_COLOR] = LLVMPointerType(LLVMInt8TypeInContext(lc), 0);
 172       elem_types[LP_JIT_CTX_F_BLEND_COLOR] = LLVMPointerType(LLVMFloatTypeInContext(lc), 0);
 173       elem_types[LP_JIT_CTX_VIEWPORTS] = LLVMPointerType(viewport_type, 0);
 174       elem_types[LP_JIT_CTX_TEXTURES] = LLVMArrayType(texture_type,
 175                                                       PIPE_MAX_SHADER_SAMPLER_VIEWS);
 176       elem_types[LP_JIT_CTX_SAMPLERS] = LLVMArrayType(sampler_type,
 177                                                       PIPE_MAX_SAMPLERS);
 178       elem_types[LP_JIT_CTX_SSBOS] =
 179          LLVMArrayType(LLVMPointerType(LLVMInt32TypeInContext(lc), 0), LP_MAX_TGSI_SHADER_BUFFERS);
 180       elem_types[LP_JIT_CTX_NUM_SSBOS] =
 181             LLVMArrayType(LLVMInt32TypeInContext(lc), LP_MAX_TGSI_SHADER_BUFFERS);
 182       context_type = LLVMStructTypeInContext(lc, elem_types,
 183                                              ARRAY_SIZE(elem_types), 0);
 184
 185       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, constants,
 186                              gallivm->target, context_type,
 187                              LP_JIT_CTX_CONSTANTS);
 188       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, num_constants,
 189                              gallivm->target, context_type,
 190                              LP_JIT_CTX_NUM_CONSTANTS);
 191       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, alpha_ref_value,
 192                              gallivm->target, context_type,
 193                              LP_JIT_CTX_ALPHA_REF);
 194       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_front,
 195                              gallivm->target, context_type,
 196                              LP_JIT_CTX_STENCIL_REF_FRONT);
 197       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, stencil_ref_back,
 198                              gallivm->target, context_type,
 199                              LP_JIT_CTX_STENCIL_REF_BACK);
 200       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, u8_blend_color,
 201                              gallivm->target, context_type,
 202                              LP_JIT_CTX_U8_BLEND_COLOR);
 203       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, f_blend_color,
 204                              gallivm->target, context_type,
 205                              LP_JIT_CTX_F_BLEND_COLOR);
 206       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, viewports,
 207                              gallivm->target, context_type,
 208                              LP_JIT_CTX_VIEWPORTS);
 209       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, textures,
 210                              gallivm->target, context_type,
 211                              LP_JIT_CTX_TEXTURES);
 212       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, samplers,
 213                              gallivm->target, context_type,
 214                              LP_JIT_CTX_SAMPLERS);
 215       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, ssbos,
 216                              gallivm->target, context_type,
 217                              LP_JIT_CTX_SSBOS);
 218       LP_CHECK_MEMBER_OFFSET(struct lp_jit_context, num_ssbos,
 219                              gallivm->target, context_type,
 220                              LP_JIT_CTX_NUM_SSBOS);
 221       LP_CHECK_STRUCT_SIZE(struct lp_jit_context,
 222                            gallivm->target, context_type);
 223
 224       lp->jit_context_ptr_type = LLVMPointerType(context_type, 0);
 225    }
 226
 227    /* struct lp_jit_thread_data */
 228    {
 229       LLVMTypeRef elem_types[LP_JIT_THREAD_DATA_COUNT];
 230       LLVMTypeRef thread_data_type;
 231
 232       elem_types[LP_JIT_THREAD_DATA_CACHE] =
 233             LLVMPointerType(lp_build_format_cache_type(gallivm), 0);
 234       elem_types[LP_JIT_THREAD_DATA_COUNTER] = LLVMInt64TypeInContext(lc);
 235       elem_types[LP_JIT_THREAD_DATA_INVOCATIONS] = LLVMInt64TypeInContext(lc);
 236       elem_types[LP_JIT_THREAD_DATA_RASTER_STATE_VIEWPORT_INDEX] =
 237             LLVMInt32TypeInContext(lc);
 238
 239       thread_data_type = LLVMStructTypeInContext(lc, elem_types,
 240                                                  ARRAY_SIZE(elem_types), 0);
 241
 242       lp->jit_thread_data_ptr_type = LLVMPointerType(thread_data_type, 0);
 243    }
 244
 245    if (gallivm_debug & GALLIVM_DEBUG_IR) {
 246 #if HAVE_LLVM >= 0x304
 247       char *str = LLVMPrintModuleToString(gallivm->module);
 248       fprintf(stderr, "%s", str);
 249       LLVMDisposeMessage(str);
 250 #else
 251       LLVMDumpModule(gallivm->module);
 252 #endif
 253    }
 254 }
 255
 256
 257 void
 258 lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
 259 {
 260    /* nothing */
 261 }
 262
 263
 264 boolean
 265 lp_jit_screen_init(struct llvmpipe_screen *screen)
 266 {
 267    return lp_build_init();
 268 }
 269
 270
 271 void
 272 lp_jit_init_types(struct lp_fragment_shader_variant *lp)
 273 {
 274    if (!lp->jit_context_ptr_type)
 275       lp_jit_create_types(lp);
 276 }