示例#1
0
static INLINE int
nv40_vbo_format_to_hw(enum pipe_format pipe, unsigned *fmt, unsigned *ncomp)
{
	switch (pipe) {
	case PIPE_FORMAT_R32_FLOAT:
	case PIPE_FORMAT_R32G32_FLOAT:
	case PIPE_FORMAT_R32G32B32_FLOAT:
	case PIPE_FORMAT_R32G32B32A32_FLOAT:
		*fmt = NV40TCL_VTXFMT_TYPE_FLOAT;
		break;
	case PIPE_FORMAT_R8_UNORM:
	case PIPE_FORMAT_R8G8_UNORM:
	case PIPE_FORMAT_R8G8B8_UNORM:
	case PIPE_FORMAT_R8G8B8A8_UNORM:
		*fmt = NV40TCL_VTXFMT_TYPE_UBYTE;
		break;
	case PIPE_FORMAT_R16_SSCALED:
	case PIPE_FORMAT_R16G16_SSCALED:
	case PIPE_FORMAT_R16G16B16_SSCALED:
	case PIPE_FORMAT_R16G16B16A16_SSCALED:
		*fmt = NV40TCL_VTXFMT_TYPE_USHORT;
		break;
	default:
		NOUVEAU_ERR("Unknown format %s\n", pf_name(pipe));
		return 1;
	}

	switch (pipe) {
	case PIPE_FORMAT_R8_UNORM:
	case PIPE_FORMAT_R32_FLOAT:
	case PIPE_FORMAT_R16_SSCALED:
		*ncomp = 1;
		break;
	case PIPE_FORMAT_R8G8_UNORM:
	case PIPE_FORMAT_R32G32_FLOAT:
	case PIPE_FORMAT_R16G16_SSCALED:
		*ncomp = 2;
		break;
	case PIPE_FORMAT_R8G8B8_UNORM:
	case PIPE_FORMAT_R32G32B32_FLOAT:
	case PIPE_FORMAT_R16G16B16_SSCALED:
		*ncomp = 3;
		break;
	case PIPE_FORMAT_R8G8B8A8_UNORM:
	case PIPE_FORMAT_R32G32B32A32_FLOAT:
	case PIPE_FORMAT_R16G16B16A16_SSCALED:
		*ncomp = 4;
		break;
	default:
		NOUVEAU_ERR("Unknown format %s\n", pf_name(pipe));
		return 1;
	}

	return 0;
}
示例#2
0
void trace_dump_format(enum pipe_format format)
{
   if (!trace_dumping_enabled_locked())
      return;

   trace_dump_enum(pf_name(format) );
}
示例#3
0
/**
 * Get a texel from a texture, using the texture tile cache.
 *
 * \param face  the cube face in 0..5
 * \param level  the mipmap level
 * \param x  the x coord of texel within 2D image
 * \param y  the y coord of texel within 2D image
 * \param z  which slice of a 3D texture
 * \param rgba  the quad to put the texel/color into
 * \param j  which element of the rgba quad to write to
 *
 * XXX maybe move this into sp_tile_cache.c and merge with the
 * sp_get_cached_tile_tex() function.  Also, get 4 texels instead of 1...
 */
static void
get_texel(const struct tgsi_sampler *tgsi_sampler,
          unsigned face, unsigned level, int x, int y, int z,
          float rgba[NUM_CHANNELS][QUAD_SIZE], unsigned j)
{
   const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
   struct softpipe_context *sp = samp->sp;
   const uint unit = samp->unit;
   const struct pipe_texture *texture = sp->texture[unit];
   const struct pipe_sampler_state *sampler = sp->sampler[unit];

   if (x < 0 || x >= (int) texture->width[level] ||
       y < 0 || y >= (int) texture->height[level] ||
       z < 0 || z >= (int) texture->depth[level]) {
      rgba[0][j] = sampler->border_color[0];
      rgba[1][j] = sampler->border_color[1];
      rgba[2][j] = sampler->border_color[2];
      rgba[3][j] = sampler->border_color[3];
   }
   else {
      const int tx = x % TILE_SIZE;
      const int ty = y % TILE_SIZE;
      const struct softpipe_cached_tile *tile
         = sp_get_cached_tile_tex(sp, samp->cache,
                                  x, y, z, face, level);
      rgba[0][j] = tile->data.color[ty][tx][0];
      rgba[1][j] = tile->data.color[ty][tx][1];
      rgba[2][j] = tile->data.color[ty][tx][2];
      rgba[3][j] = tile->data.color[ty][tx][3];
      if (0)
      {
         debug_printf("Get texel %f %f %f %f from %s\n",
                      rgba[0][j], rgba[1][j], rgba[2][j], rgba[3][j],
                      pf_name(texture->format));
      }
   }
}
示例#4
0
/**
 * Generate the runtime callable function for the whole fragment pipeline.
 */
static struct lp_fragment_shader_variant *
generate_fragment(struct llvmpipe_context *lp,
                  struct lp_fragment_shader *shader,
                  const struct lp_fragment_shader_variant_key *key)
{
   struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
   struct lp_fragment_shader_variant *variant;
   struct lp_type fs_type;
   struct lp_type blend_type;
   LLVMTypeRef fs_elem_type;
   LLVMTypeRef fs_vec_type;
   LLVMTypeRef fs_int_vec_type;
   LLVMTypeRef blend_vec_type;
   LLVMTypeRef blend_int_vec_type;
   LLVMTypeRef arg_types[9];
   LLVMTypeRef func_type;
   LLVMValueRef context_ptr;
   LLVMValueRef x;
   LLVMValueRef y;
   LLVMValueRef a0_ptr;
   LLVMValueRef dadx_ptr;
   LLVMValueRef dady_ptr;
   LLVMValueRef mask_ptr;
   LLVMValueRef color_ptr;
   LLVMValueRef depth_ptr;
   LLVMBasicBlockRef block;
   LLVMBuilderRef builder;
   LLVMValueRef x0;
   LLVMValueRef y0;
   struct lp_build_sampler_soa *sampler;
   struct lp_build_interp_soa_context interp;
   LLVMValueRef fs_mask[LP_MAX_VECTOR_LENGTH];
   LLVMValueRef fs_out_color[NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
   LLVMValueRef blend_mask;
   LLVMValueRef blend_in_color[NUM_CHANNELS];
   unsigned num_fs;
   unsigned i;
   unsigned chan;

#ifdef DEBUG
   tgsi_dump(shader->base.tokens, 0);
   if(key->depth.enabled) {
      debug_printf("depth.format = %s\n", pf_name(key->zsbuf_format));
      debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
      debug_printf("depth.writemask = %u\n", key->depth.writemask);
   }
   if(key->alpha.enabled) {
      debug_printf("alpha.func = %s\n", debug_dump_func(key->alpha.func, TRUE));
      debug_printf("alpha.ref_value = %f\n", key->alpha.ref_value);
   }
   if(key->blend.logicop_enable) {
      debug_printf("blend.logicop_func = %u\n", key->blend.logicop_func);
   }
   else if(key->blend.blend_enable) {
      debug_printf("blend.rgb_func = %s\n",   debug_dump_blend_func  (key->blend.rgb_func, TRUE));
      debug_printf("rgb_src_factor = %s\n",   debug_dump_blend_factor(key->blend.rgb_src_factor, TRUE));
      debug_printf("rgb_dst_factor = %s\n",   debug_dump_blend_factor(key->blend.rgb_dst_factor, TRUE));
      debug_printf("alpha_func = %s\n",       debug_dump_blend_func  (key->blend.alpha_func, TRUE));
      debug_printf("alpha_src_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_src_factor, TRUE));
      debug_printf("alpha_dst_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_dst_factor, TRUE));
   }
   debug_printf("blend.colormask = 0x%x\n", key->blend.colormask);
   for(i = 0; i < PIPE_MAX_SAMPLERS; ++i) {
      if(key->sampler[i].format) {
         debug_printf("sampler[%u] = \n", i);
         debug_printf("  .format = %s\n",
                      pf_name(key->sampler[i].format));
         debug_printf("  .target = %s\n",
                      debug_dump_tex_target(key->sampler[i].target, TRUE));
         debug_printf("  .pot = %u %u %u\n",
                      key->sampler[i].pot_width,
                      key->sampler[i].pot_height,
                      key->sampler[i].pot_depth);
         debug_printf("  .wrap = %s %s %s\n",
                      debug_dump_tex_wrap(key->sampler[i].wrap_s, TRUE),
                      debug_dump_tex_wrap(key->sampler[i].wrap_t, TRUE),
                      debug_dump_tex_wrap(key->sampler[i].wrap_r, TRUE));
         debug_printf("  .min_img_filter = %s\n",
                      debug_dump_tex_filter(key->sampler[i].min_img_filter, TRUE));
         debug_printf("  .min_mip_filter = %s\n",
                      debug_dump_tex_mipfilter(key->sampler[i].min_mip_filter, TRUE));
         debug_printf("  .mag_img_filter = %s\n",
                      debug_dump_tex_filter(key->sampler[i].mag_img_filter, TRUE));
         if(key->sampler[i].compare_mode)
            debug_printf("  .compare_mode = %s\n", debug_dump_func(key->sampler[i].compare_func, TRUE));
         debug_printf("  .normalized_coords = %u\n", key->sampler[i].normalized_coords);
         debug_printf("  .prefilter = %u\n", key->sampler[i].prefilter);
      }
   }

#endif

   variant = CALLOC_STRUCT(lp_fragment_shader_variant);
   if(!variant)
      return NULL;

   variant->shader = shader;
   memcpy(&variant->key, key, sizeof *key);

   /* TODO: actually pick these based on the fs and color buffer
    * characteristics. */

   memset(&fs_type, 0, sizeof fs_type);
   fs_type.floating = TRUE; /* floating point values */
   fs_type.sign = TRUE;     /* values are signed */
   fs_type.norm = FALSE;    /* values are not limited to [0,1] or [-1,1] */
   fs_type.width = 32;      /* 32-bit float */
   fs_type.length = 4;      /* 4 element per vector */
   num_fs = 4;

   memset(&blend_type, 0, sizeof blend_type);
   blend_type.floating = FALSE; /* values are integers */
   blend_type.sign = FALSE;     /* values are unsigned */
   blend_type.norm = TRUE;      /* values are in [0,1] or [-1,1] */
   blend_type.width = 8;        /* 8-bit ubyte values */
   blend_type.length = 16;      /* 16 elements per vector */

   /* 
    * Generate the function prototype. Any change here must be reflected in
    * lp_jit.h's lp_jit_frag_func function pointer type, and vice-versa.
    */

   fs_elem_type = lp_build_elem_type(fs_type);
   fs_vec_type = lp_build_vec_type(fs_type);
   fs_int_vec_type = lp_build_int_vec_type(fs_type);

   blend_vec_type = lp_build_vec_type(blend_type);
   blend_int_vec_type = lp_build_int_vec_type(blend_type);

   arg_types[0] = screen->context_ptr_type;            /* context */
   arg_types[1] = LLVMInt32Type();                     /* x */
   arg_types[2] = LLVMInt32Type();                     /* y */
   arg_types[3] = LLVMPointerType(fs_elem_type, 0);    /* a0 */
   arg_types[4] = LLVMPointerType(fs_elem_type, 0);    /* dadx */
   arg_types[5] = LLVMPointerType(fs_elem_type, 0);    /* dady */
   arg_types[6] = LLVMPointerType(fs_int_vec_type, 0); /* mask */
   arg_types[7] = LLVMPointerType(blend_vec_type, 0);  /* color */
   arg_types[8] = LLVMPointerType(fs_int_vec_type, 0); /* depth */

   func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);

   variant->function = LLVMAddFunction(screen->module, "shader", func_type);
   LLVMSetFunctionCallConv(variant->function, LLVMCCallConv);
   for(i = 0; i < Elements(arg_types); ++i)
      if(LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind)
         LLVMAddAttribute(LLVMGetParam(variant->function, i), LLVMNoAliasAttribute);

   context_ptr  = LLVMGetParam(variant->function, 0);
   x            = LLVMGetParam(variant->function, 1);
   y            = LLVMGetParam(variant->function, 2);
   a0_ptr       = LLVMGetParam(variant->function, 3);
   dadx_ptr     = LLVMGetParam(variant->function, 4);
   dady_ptr     = LLVMGetParam(variant->function, 5);
   mask_ptr     = LLVMGetParam(variant->function, 6);
   color_ptr    = LLVMGetParam(variant->function, 7);
   depth_ptr    = LLVMGetParam(variant->function, 8);

   lp_build_name(context_ptr, "context");
   lp_build_name(x, "x");
   lp_build_name(y, "y");
   lp_build_name(a0_ptr, "a0");
   lp_build_name(dadx_ptr, "dadx");
   lp_build_name(dady_ptr, "dady");
   lp_build_name(mask_ptr, "mask");
   lp_build_name(color_ptr, "color");
   lp_build_name(depth_ptr, "depth");

   /*
    * Function body
    */

   block = LLVMAppendBasicBlock(variant->function, "entry");
   builder = LLVMCreateBuilder();
   LLVMPositionBuilderAtEnd(builder, block);

   generate_pos0(builder, x, y, &x0, &y0);

   lp_build_interp_soa_init(&interp, shader->base.tokens, builder, fs_type,
                            a0_ptr, dadx_ptr, dady_ptr,
                            x0, y0, 2, 0);

#if 0
   /* C texture sampling */
   sampler = lp_c_sampler_soa_create(context_ptr);
#else
   /* code generated texture sampling */
   sampler = lp_llvm_sampler_soa_create(key->sampler, context_ptr);
#endif

   for(i = 0; i < num_fs; ++i) {
      LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
      LLVMValueRef out_color[NUM_CHANNELS];
      LLVMValueRef depth_ptr_i;

      if(i != 0)
         lp_build_interp_soa_update(&interp);

      fs_mask[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, mask_ptr, &index, 1, ""), "");
      depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &index, 1, "");

      generate_fs(lp, shader, key,
                  builder,
                  fs_type,
                  context_ptr,
                  i,
                  &interp,
                  sampler,
                  &fs_mask[i],
                  out_color,
                  depth_ptr_i);

      for(chan = 0; chan < NUM_CHANNELS; ++chan)
         fs_out_color[chan][i] = out_color[chan];
   }

   sampler->destroy(sampler);

   /* 
    * Convert the fs's output color and mask to fit to the blending type. 
    */

   for(chan = 0; chan < NUM_CHANNELS; ++chan) {
      lp_build_conv(builder, fs_type, blend_type,
                    fs_out_color[chan], num_fs,
                    &blend_in_color[chan], 1);
      lp_build_name(blend_in_color[chan], "color.%c", "rgba"[chan]);

   }

   lp_build_conv_mask(builder, fs_type, blend_type,
                               fs_mask, num_fs,
                               &blend_mask, 1);

   /*
    * Blending.
    */

   generate_blend(&key->blend,
                  builder,
                  blend_type,
                  context_ptr,
                  blend_mask,
                  blend_in_color,
                  color_ptr);

   LLVMBuildRetVoid(builder);

   LLVMDisposeBuilder(builder);

   /*
    * Translate the LLVM IR into machine code.
    */

   if(LLVMVerifyFunction(variant->function, LLVMPrintMessageAction)) {
      LLVMDumpValue(variant->function);
      abort();
   }

   LLVMRunFunctionPassManager(screen->pass, variant->function);

#ifdef DEBUG
   LLVMDumpValue(variant->function);
   debug_printf("\n");
#endif

   variant->jit_function = (lp_jit_frag_func)LLVMGetPointerToGlobal(screen->engine, variant->function);

#ifdef DEBUG
   lp_disassemble(variant->jit_function);
#endif

   variant->next = shader->variants;
   shader->variants = variant;

   return variant;
}