Пример #1
0
void
vc4_init_cl(void *mem_ctx, struct vc4_cl *cl)
{
        cl->base = rzalloc_size(mem_ctx, 1); /* TODO: don't use rzalloc */
        cl->next = cl->base;
        cl->size = 0;
}
Пример #2
0
static struct deref_node *
deref_node_create(struct deref_node *parent,
                  const struct glsl_type *type, nir_shader *shader)
{
   size_t size = sizeof(struct deref_node) +
                 glsl_get_length(type) * sizeof(struct deref_node *);

   struct deref_node *node = rzalloc_size(shader, size);
   node->type = type;
   node->parent = parent;
   node->deref = NULL;
   exec_node_init(&node->direct_derefs_link);

   return node;
}
Пример #3
0
void *ppir_node_create(ppir_block *block, ppir_op op, int index, unsigned mask)
{
   ppir_compiler *comp = block->comp;
   static const int node_size[] = {
      [ppir_node_type_alu] = sizeof(ppir_alu_node),
      [ppir_node_type_const] = sizeof(ppir_const_node),
      [ppir_node_type_load] = sizeof(ppir_load_node),
      [ppir_node_type_store] = sizeof(ppir_store_node),
      [ppir_node_type_load_texture] = sizeof(ppir_load_texture_node),
   };

   ppir_node_type type = ppir_op_infos[op].type;
   int size = node_size[type];
   ppir_node *node = rzalloc_size(block, size);
   if (!node)
      return NULL;

   list_inithead(&node->succ_list);
   list_inithead(&node->pred_list);

   if (index >= 0) {
      if (mask) {
         /* reg has 4 slots for each componemt write node */
         while (mask)
            comp->var_nodes[(index << 2) + comp->reg_base + u_bit_scan(&mask)] = node;
         snprintf(node->name, sizeof(node->name), "reg%d", index);
      } else {
         comp->var_nodes[index] = node;
         snprintf(node->name, sizeof(node->name), "ssa%d", index);
      }
   }
   else
      snprintf(node->name, sizeof(node->name), "new");

   node->op = op;
   node->type = type;
   node->index = comp->cur_index++;
   node->block = block;

   return node;
}
static void
setup_glsl_msaa_blit_scaled_shader(struct gl_context *ctx,
                                   struct blit_state *blit,
                                   struct gl_renderbuffer *src_rb,
                                   GLenum target, GLenum filter)
{
   GLint loc_src_width, loc_src_height;
   int i, samples;
   int shader_offset = 0;
   void *mem_ctx = ralloc_context(NULL);
   char *fs_source;
   char *name, *sample_number;
   const uint8_t *sample_map;
   char *sample_map_str = rzalloc_size(mem_ctx, 1);
   char *sample_map_expr = rzalloc_size(mem_ctx, 1);
   char *texel_fetch_macro = rzalloc_size(mem_ctx, 1);
   const char *sampler_array_suffix = "";
   float y_scale;
   enum blit_msaa_shader shader_index;

   assert(src_rb);
   samples = MAX2(src_rb->NumSamples, 1);
   y_scale = samples * 0.5;

   /* We expect only power of 2 samples in source multisample buffer. */
   assert(samples > 0 && _mesa_is_pow_two(samples));
   while (samples >> (shader_offset + 1)) {
      shader_offset++;
   }
   /* Update the assert if we plan to support more than 8X MSAA. */
   assert(shader_offset > 0 && shader_offset < 4);

   assert(target == GL_TEXTURE_2D_MULTISAMPLE ||
          target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);

   shader_index = BLIT_2X_MSAA_SHADER_2D_MULTISAMPLE_SCALED_RESOLVE +
                  shader_offset - 1;

   if (target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) {
      shader_index += BLIT_2X_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_SCALED_RESOLVE -
                      BLIT_2X_MSAA_SHADER_2D_MULTISAMPLE_SCALED_RESOLVE;
      sampler_array_suffix = "Array";
   }

   if (blit->msaa_shaders[shader_index]) {
      _mesa_UseProgram(blit->msaa_shaders[shader_index]);
      /* Update the uniform values. */
      loc_src_width =
         _mesa_GetUniformLocation(blit->msaa_shaders[shader_index], "src_width");
      loc_src_height =
         _mesa_GetUniformLocation(blit->msaa_shaders[shader_index], "src_height");
      _mesa_Uniform1f(loc_src_width, src_rb->Width);
      _mesa_Uniform1f(loc_src_height, src_rb->Height);
      return;
   }

   name = ralloc_asprintf(mem_ctx, "vec4 MSAA scaled resolve");

   /* Below switch is used to setup the shader expression, which computes
    * sample index and map it to to a sample number on hardware.
    */
   switch(samples) {
   case 2:
      sample_number =  "sample_map[int(2 * fract(coord.x))]";
      sample_map = ctx->Const.SampleMap2x;
      break;
   case 4:
      sample_number =  "sample_map[int(2 * fract(coord.x) + 4 * fract(coord.y))]";
      sample_map = ctx->Const.SampleMap4x;
      break;
   case 8:
      sample_number =  "sample_map[int(2 * fract(coord.x) + 8 * fract(coord.y))]";
      sample_map = ctx->Const.SampleMap8x;
      break;
   default:
      sample_number = NULL;
      sample_map = NULL;
      _mesa_problem(ctx, "Unsupported sample count %d\n", samples);
      unreachable("Unsupported sample count");
   }

   /* Create sample map string. */
   for (i = 0 ; i < samples - 1; i++) {
      ralloc_asprintf_append(&sample_map_str, "%d, ", sample_map[i]);
   }
   ralloc_asprintf_append(&sample_map_str, "%d", sample_map[samples - 1]);

   /* Create sample map expression using above string. */
   ralloc_asprintf_append(&sample_map_expr,
                          "   const int sample_map[%d] = int[%d](%s);\n",
                          samples, samples, sample_map_str);

   if (target == GL_TEXTURE_2D_MULTISAMPLE) {
      ralloc_asprintf_append(&texel_fetch_macro,
                             "#define TEXEL_FETCH(coord) texelFetch(texSampler, ivec2(coord), %s);\n",
                             sample_number);
   } else {
      ralloc_asprintf_append(&texel_fetch_macro,
                             "#define TEXEL_FETCH(coord) texelFetch(texSampler, ivec3(coord, layer), %s);\n",
                             sample_number);
   }

   static const char vs_source[] =
                               "#version 130\n"
                               "in vec2 position;\n"
                               "in vec3 textureCoords;\n"
                               "out vec2 texCoords;\n"
                               "flat out int layer;\n"
                               "void main()\n"
                               "{\n"
                               "   texCoords = textureCoords.xy;\n"
                               "   layer = int(textureCoords.z);\n"
                               "   gl_Position = vec4(position, 0.0, 1.0);\n"
                               "}\n"
      ;

   fs_source = ralloc_asprintf(mem_ctx,
                               "#version 130\n"
                               "#extension GL_ARB_texture_multisample : enable\n"
                               "uniform sampler2DMS%s texSampler;\n"
                               "uniform float src_width, src_height;\n"
                               "in vec2 texCoords;\n"
                               "flat in int layer;\n"
                               "out vec4 out_color;\n"
                               "\n"
                               "void main()\n"
                               "{\n"
                               "%s"
                               "   vec2 interp;\n"
                               "   const vec2 scale = vec2(2.0f, %ff);\n"
                               "   const vec2 scale_inv = vec2(0.5f, %ff);\n"
                               "   const vec2 s_0_offset = vec2(0.25f, %ff);\n"
                               "   vec2 s_0_coord, s_1_coord, s_2_coord, s_3_coord;\n"
                               "   vec4 s_0_color, s_1_color, s_2_color, s_3_color;\n"
                               "   vec4 x_0_color, x_1_color;\n"
                               "   vec2 tex_coord = texCoords - s_0_offset;\n"
                               "\n"
                               "   tex_coord *= scale;\n"
                               "   clamp(tex_coord.x, 0.0f, scale.x * src_width - 1.0f);\n"
                               "   clamp(tex_coord.y, 0.0f, scale.y * src_height - 1.0f);\n"
                               "   interp = fract(tex_coord);\n"
                               "   tex_coord = ivec2(tex_coord) * scale_inv;\n"
                               "\n"
                               "   /* Compute the sample coordinates used for filtering. */\n"
                               "   s_0_coord = tex_coord;\n"
                               "   s_1_coord = tex_coord + vec2(scale_inv.x, 0.0f);\n"
                               "   s_2_coord = tex_coord + vec2(0.0f, scale_inv.y);\n"
                               "   s_3_coord = tex_coord + vec2(scale_inv.x, scale_inv.y);\n"
                               "\n"
                               "   /* Fetch sample color values. */\n"
                               "%s"
                               "   s_0_color = TEXEL_FETCH(s_0_coord)\n"
                               "   s_1_color = TEXEL_FETCH(s_1_coord)\n"
                               "   s_2_color = TEXEL_FETCH(s_2_coord)\n"
                               "   s_3_color = TEXEL_FETCH(s_3_coord)\n"
                               "#undef TEXEL_FETCH\n"
                               "\n"
                               "   /* Do bilinear filtering on sample colors. */\n"
                               "   x_0_color =  mix(s_0_color, s_1_color, interp.x);\n"
                               "   x_1_color =  mix(s_2_color, s_3_color, interp.x);\n"
                               "   out_color = mix(x_0_color, x_1_color, interp.y);\n"
                               "}\n",
                               sampler_array_suffix,
                               sample_map_expr,
                               y_scale,
                               1.0f / y_scale,
                               1.0f / samples,
                               texel_fetch_macro);

   _mesa_meta_compile_and_link_program(ctx, vs_source, fs_source, name,
                                       &blit->msaa_shaders[shader_index]);
   loc_src_width =
      _mesa_GetUniformLocation(blit->msaa_shaders[shader_index], "src_width");
   loc_src_height =
      _mesa_GetUniformLocation(blit->msaa_shaders[shader_index], "src_height");
   _mesa_Uniform1f(loc_src_width, src_rb->Width);
   _mesa_Uniform1f(loc_src_height, src_rb->Height);

   ralloc_free(mem_ctx);
}
static void
setup_glsl_msaa_blit_shader(struct gl_context *ctx,
                            struct blit_state *blit,
                            const struct gl_framebuffer *drawFb,
                            struct gl_renderbuffer *src_rb,
                            GLenum target)
{
   const char *vs_source;
   char *fs_source;
   void *mem_ctx;
   enum blit_msaa_shader shader_index;
   bool dst_is_msaa = false;
   GLenum src_datatype;
   const char *vec4_prefix;
   const char *sampler_array_suffix = "";
   char *name;
   const char *texcoord_type = "vec2";
   int samples;
   int shader_offset = 0;

   if (src_rb) {
      samples = MAX2(src_rb->NumSamples, 1);
      src_datatype = _mesa_get_format_datatype(src_rb->Format);
   } else {
      /* depth-or-color glCopyTexImage fallback path that passes a NULL rb and
       * doesn't handle integer.
       */
      samples = 1;
      src_datatype = GL_UNSIGNED_NORMALIZED;
   }

   /* We expect only power of 2 samples in source multisample buffer. */
   assert(samples > 0 && _mesa_is_pow_two(samples));
   while (samples >> (shader_offset + 1)) {
      shader_offset++;
   }
   /* Update the assert if we plan to support more than 16X MSAA. */
   assert(shader_offset >= 0 && shader_offset <= 4);

   if (drawFb->Visual.samples > 1) {
      /* If you're calling meta_BlitFramebuffer with the destination
       * multisampled, this is the only path that will work -- swrast and
       * CopyTexImage won't work on it either.
       */
      assert(ctx->Extensions.ARB_sample_shading);

      dst_is_msaa = true;

      /* We need shader invocation per sample, not per pixel */
      _mesa_set_enable(ctx, GL_MULTISAMPLE, GL_TRUE);
      _mesa_set_enable(ctx, GL_SAMPLE_SHADING, GL_TRUE);
      _mesa_MinSampleShading(1.0);
   }

   switch (target) {
   case GL_TEXTURE_2D_MULTISAMPLE:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
      if (src_rb && (src_rb->_BaseFormat == GL_DEPTH_COMPONENT ||
          src_rb->_BaseFormat == GL_DEPTH_STENCIL)) {
         if (dst_is_msaa)
            shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_COPY;
         else
            shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_RESOLVE;
      } else {
         if (dst_is_msaa)
            shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY;
         else {
            shader_index = BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE +
                           shader_offset;
         }
      }

      if (target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) {
         shader_index += (BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE -
                          BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE);
         sampler_array_suffix = "Array";
         texcoord_type = "vec3";
      }
      break;
   default:
      _mesa_problem(ctx, "Unkown texture target %s\n",
                    _mesa_enum_to_string(target));
      shader_index = BLIT_2X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE;
   }

   /* We rely on the enum being sorted this way. */
   STATIC_ASSERT(BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_INT ==
                 BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 5);
   STATIC_ASSERT(BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_UINT ==
                 BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 10);
   if (src_datatype == GL_INT) {
      shader_index += 5;
      vec4_prefix = "i";
   } else if (src_datatype == GL_UNSIGNED_INT) {
      shader_index += 10;
      vec4_prefix = "u";
   } else {
      vec4_prefix = "";
   }

   if (blit->msaa_shaders[shader_index]) {
      _mesa_UseProgram(blit->msaa_shaders[shader_index]);
      return;
   }

   mem_ctx = ralloc_context(NULL);

   if (shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_RESOLVE ||
       shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_DEPTH_RESOLVE ||
       shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_DEPTH_COPY ||
       shader_index == BLIT_MSAA_SHADER_2D_MULTISAMPLE_DEPTH_COPY) {
      char *sample_index;
      const char *arb_sample_shading_extension_string;

      if (dst_is_msaa) {
         arb_sample_shading_extension_string = "#extension GL_ARB_sample_shading : enable";
         sample_index = "gl_SampleID";
         name = "depth MSAA copy";
      } else {
         /* Don't need that extension, since we're drawing to a single-sampled
          * destination.
          */
         arb_sample_shading_extension_string = "";
         /* From the GL 4.3 spec:
          *
          *     "If there is a multisample buffer (the value of SAMPLE_BUFFERS
          *      is one), then values are obtained from the depth samples in
          *      this buffer. It is recommended that the depth value of the
          *      centermost sample be used, though implementations may choose
          *      any function of the depth sample values at each pixel.
          *
          * We're slacking and instead of choosing centermost, we've got 0.
          */
         sample_index = "0";
         name = "depth MSAA resolve";
      }

      vs_source = ralloc_asprintf(mem_ctx,
                                  "#version 130\n"
                                  "in vec2 position;\n"
                                  "in %s textureCoords;\n"
                                  "out %s texCoords;\n"
                                  "void main()\n"
                                  "{\n"
                                  "   texCoords = textureCoords;\n"
                                  "   gl_Position = vec4(position, 0.0, 1.0);\n"
                                  "}\n",
                                  texcoord_type,
                                  texcoord_type);
      fs_source = ralloc_asprintf(mem_ctx,
                                  "#version 130\n"
                                  "#extension GL_ARB_texture_multisample : enable\n"
                                  "%s\n"
                                  "uniform sampler2DMS%s texSampler;\n"
                                  "in %s texCoords;\n"
                                  "out vec4 out_color;\n"
                                  "\n"
                                  "void main()\n"
                                  "{\n"
                                  "   gl_FragDepth = texelFetch(texSampler, i%s(texCoords), %s).r;\n"
                                  "}\n",
                                  arb_sample_shading_extension_string,
                                  sampler_array_suffix,
                                  texcoord_type,
                                  texcoord_type,
                                  sample_index);
   } else {
      /* You can create 2D_MULTISAMPLE textures with 0 sample count (meaning 1
       * sample).  Yes, this is ridiculous.
       */
      char *sample_resolve;
      const char *arb_sample_shading_extension_string;
      const char *merge_function;
      name = ralloc_asprintf(mem_ctx, "%svec4 MSAA %s",
                             vec4_prefix,
                             dst_is_msaa ? "copy" : "resolve");

      if (dst_is_msaa) {
         arb_sample_shading_extension_string = "#extension GL_ARB_sample_shading : enable";
         sample_resolve = ralloc_asprintf(mem_ctx, "   out_color = texelFetch(texSampler, i%s(texCoords), gl_SampleID);", texcoord_type);
         merge_function = "";
      } else {
         int i;
         int step;

         if (src_datatype == GL_INT || src_datatype == GL_UNSIGNED_INT) {
            merge_function =
               "gvec4 merge(gvec4 a, gvec4 b) { return (a >> gvec4(1)) + (b >> gvec4(1)) + (a & b & gvec4(1)); }\n";
         } else {
            /* The divide will happen at the end for floats. */
            merge_function =
               "vec4 merge(vec4 a, vec4 b) { return (a + b); }\n";
         }

         arb_sample_shading_extension_string = "";

         /* We're assuming power of two samples for this resolution procedure.
          *
          * To avoid losing any floating point precision if the samples all
          * happen to have the same value, we merge pairs of values at a time
          * (so the floating point exponent just gets increased), rather than
          * doing a naive sum and dividing.
          */
         assert(_mesa_is_pow_two(samples));
         /* Fetch each individual sample. */
         sample_resolve = rzalloc_size(mem_ctx, 1);
         for (i = 0; i < samples; i++) {
            ralloc_asprintf_append(&sample_resolve,
                                   "   gvec4 sample_1_%d = texelFetch(texSampler, i%s(texCoords), %d);\n",
                                   i, texcoord_type, i);
         }
         /* Now, merge each pair of samples, then merge each pair of those,
          * etc.
          */
         for (step = 2; step <= samples; step *= 2) {
            for (i = 0; i < samples; i += step) {
               ralloc_asprintf_append(&sample_resolve,
                                      "   gvec4 sample_%d_%d = merge(sample_%d_%d, sample_%d_%d);\n",
                                      step, i,
                                      step / 2, i,
                                      step / 2, i + step / 2);
            }
         }

         /* Scale the final result. */
         if (src_datatype == GL_UNSIGNED_INT || src_datatype == GL_INT) {
            ralloc_asprintf_append(&sample_resolve,
                                   "   out_color = sample_%d_0;\n",
                                   samples);
         } else {
            ralloc_asprintf_append(&sample_resolve,
                                   "   gl_FragColor = sample_%d_0 / %f;\n",
                                   samples, (float)samples);
         }
      }

      vs_source = ralloc_asprintf(mem_ctx,
                                  "#version 130\n"
                                  "in vec2 position;\n"
                                  "in %s textureCoords;\n"
                                  "out %s texCoords;\n"
                                  "void main()\n"
                                  "{\n"
                                  "   texCoords = textureCoords;\n"
                                  "   gl_Position = vec4(position, 0.0, 1.0);\n"
                                  "}\n",
                                  texcoord_type,
                                  texcoord_type);
      fs_source = ralloc_asprintf(mem_ctx,
                                  "#version 130\n"
                                  "#extension GL_ARB_texture_multisample : enable\n"
                                  "%s\n"
                                  "#define gvec4 %svec4\n"
                                  "uniform %ssampler2DMS%s texSampler;\n"
                                  "in %s texCoords;\n"
                                  "out gvec4 out_color;\n"
                                  "\n"
                                  "%s" /* merge_function */
                                  "void main()\n"
                                  "{\n"
                                  "%s\n" /* sample_resolve */
                                  "}\n",
                                  arb_sample_shading_extension_string,
                                  vec4_prefix,
                                  vec4_prefix,
                                  sampler_array_suffix,
                                  texcoord_type,
                                  merge_function,
                                  sample_resolve);
   }

   _mesa_meta_compile_and_link_program(ctx, vs_source, fs_source, name,
                                       &blit->msaa_shaders[shader_index]);

   ralloc_free(mem_ctx);
}
Пример #6
0
/* simple allocator to carve allocations out of an up-front allocated heap,
 * so that we can free everything easily in one shot.
 */
void * ir3_alloc(struct ir3 *shader, int sz)
{
	return rzalloc_size(shader, sz); /* TODO: don't use rzalloc */
}