kc3-lang/angle/src/libANGLE/ContextState.cpp

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• Author : Jamie Madill
  Date : 2016-11-07 12:06:18
  Hash : 01a80eeb
  Message : Refactor all the Bind* GLES 2.0 entry points. This requires storing a reference the the Context's Framebuffer map in the ValidationContext. Likely we'll need to do this as well for the other non-shared object types. BUG=angleproject:747 Change-Id: I73ee8b0be3c3b9e54b7e48e49d6f738cf1d926dd Reviewed-on: https://chromium-review.googlesource.com/407843 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/libANGLE/ContextState.cpp

• //
  // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // Data.cpp: Container class for all GL relevant state, caps and objects
  
  #include "libANGLE/ContextState.h"
  
  #include "libANGLE/Framebuffer.h"
  #include "libANGLE/ResourceManager.h"
  
  namespace gl
  {
  
  ContextState::ContextState(uintptr_t contextIn,
                             const Version &clientVersion,
                             State *stateIn,
                             const Caps &capsIn,
                             const TextureCapsMap &textureCapsIn,
                             const Extensions &extensionsIn,
                             const ResourceManager *resourceManagerIn,
                             const Limitations &limitationsIn,
                             const ResourceMap<Framebuffer> &framebufferMap)
      : mClientVersion(clientVersion),
        mContext(contextIn),
        mState(stateIn),
        mCaps(capsIn),
        mTextureCaps(textureCapsIn),
        mExtensions(extensionsIn),
        mResourceManager(resourceManagerIn),
        mLimitations(limitationsIn),
        mFramebufferMap(framebufferMap)
  {
  }
  
  ContextState::~ContextState()
  {
  }
  
  const TextureCaps &ContextState::getTextureCap(GLenum internalFormat) const
  {
      return mTextureCaps.get(internalFormat);
  }
  
  ValidationContext::ValidationContext(const Version &clientVersion,
                                       State *state,
                                       const Caps &caps,
                                       const TextureCapsMap &textureCaps,
                                       const Extensions &extensions,
                                       const ResourceManager *resourceManager,
                                       const Limitations &limitations,
                                       const ResourceMap<Framebuffer> &framebufferMap,
                                       bool skipValidation)
      : mState(reinterpret_cast<uintptr_t>(this),
               clientVersion,
               state,
               caps,
               textureCaps,
               extensions,
               resourceManager,
               limitations,
               framebufferMap),
        mSkipValidation(skipValidation)
  {
  }
  
  bool ValidationContext::getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *numParams)
  {
      if (pname >= GL_DRAW_BUFFER0_EXT && pname <= GL_DRAW_BUFFER15_EXT)
      {
          *type      = GL_INT;
          *numParams = 1;
          return true;
      }
  
      // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation
      // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due
      // to the fact that it is stored internally as a float, and so would require conversion
      // if returned from Context::getIntegerv. Since this conversion is already implemented
      // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we
      // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling
      // application.
      switch (pname)
      {
          case GL_COMPRESSED_TEXTURE_FORMATS:
          {
              *type      = GL_INT;
              *numParams = static_cast<unsigned int>(getCaps().compressedTextureFormats.size());
              return true;
          }
          case GL_PROGRAM_BINARY_FORMATS_OES:
          {
              *type      = GL_INT;
              *numParams = static_cast<unsigned int>(getCaps().programBinaryFormats.size());
              return true;
          }
          case GL_SHADER_BINARY_FORMATS:
          {
              *type      = GL_INT;
              *numParams = static_cast<unsigned int>(getCaps().shaderBinaryFormats.size());
              return true;
          }
  
          case GL_MAX_VERTEX_ATTRIBS:
          case GL_MAX_VERTEX_UNIFORM_VECTORS:
          case GL_MAX_VARYING_VECTORS:
          case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
          case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
          case GL_MAX_TEXTURE_IMAGE_UNITS:
          case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
          case GL_MAX_RENDERBUFFER_SIZE:
          case GL_MAX_COLOR_ATTACHMENTS_EXT:
          case GL_MAX_DRAW_BUFFERS_EXT:
          case GL_NUM_SHADER_BINARY_FORMATS:
          case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
          case GL_ARRAY_BUFFER_BINDING:
          // case GL_FRAMEBUFFER_BINDING: // equivalent to DRAW_FRAMEBUFFER_BINDING_ANGLE
          case GL_DRAW_FRAMEBUFFER_BINDING_ANGLE:
          case GL_READ_FRAMEBUFFER_BINDING_ANGLE:
          case GL_RENDERBUFFER_BINDING:
          case GL_CURRENT_PROGRAM:
          case GL_PACK_ALIGNMENT:
          case GL_PACK_REVERSE_ROW_ORDER_ANGLE:
          case GL_UNPACK_ALIGNMENT:
          case GL_GENERATE_MIPMAP_HINT:
          case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
          case GL_RED_BITS:
          case GL_GREEN_BITS:
          case GL_BLUE_BITS:
          case GL_ALPHA_BITS:
          case GL_DEPTH_BITS:
          case GL_STENCIL_BITS:
          case GL_ELEMENT_ARRAY_BUFFER_BINDING:
          case GL_CULL_FACE_MODE:
          case GL_FRONT_FACE:
          case GL_ACTIVE_TEXTURE:
          case GL_STENCIL_FUNC:
          case GL_STENCIL_VALUE_MASK:
          case GL_STENCIL_REF:
          case GL_STENCIL_FAIL:
          case GL_STENCIL_PASS_DEPTH_FAIL:
          case GL_STENCIL_PASS_DEPTH_PASS:
          case GL_STENCIL_BACK_FUNC:
          case GL_STENCIL_BACK_VALUE_MASK:
          case GL_STENCIL_BACK_REF:
          case GL_STENCIL_BACK_FAIL:
          case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
          case GL_STENCIL_BACK_PASS_DEPTH_PASS:
          case GL_DEPTH_FUNC:
          case GL_BLEND_SRC_RGB:
          case GL_BLEND_SRC_ALPHA:
          case GL_BLEND_DST_RGB:
          case GL_BLEND_DST_ALPHA:
          case GL_BLEND_EQUATION_RGB:
          case GL_BLEND_EQUATION_ALPHA:
          case GL_STENCIL_WRITEMASK:
          case GL_STENCIL_BACK_WRITEMASK:
          case GL_STENCIL_CLEAR_VALUE:
          case GL_SUBPIXEL_BITS:
          case GL_MAX_TEXTURE_SIZE:
          case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
          case GL_SAMPLE_BUFFERS:
          case GL_SAMPLES:
          case GL_IMPLEMENTATION_COLOR_READ_TYPE:
          case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
          case GL_TEXTURE_BINDING_2D:
          case GL_TEXTURE_BINDING_CUBE_MAP:
          case GL_RESET_NOTIFICATION_STRATEGY_EXT:
          case GL_NUM_PROGRAM_BINARY_FORMATS_OES:
          {
              *type      = GL_INT;
              *numParams = 1;
              return true;
          }
          case GL_MAX_SAMPLES_ANGLE:
          {
              if (!getExtensions().framebufferMultisample)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
          }
          case GL_MAX_VIEWPORT_DIMS:
          {
              *type      = GL_INT;
              *numParams = 2;
              return true;
          }
          case GL_VIEWPORT:
          case GL_SCISSOR_BOX:
          {
              *type      = GL_INT;
              *numParams = 4;
              return true;
          }
          case GL_SHADER_COMPILER:
          case GL_SAMPLE_COVERAGE_INVERT:
          case GL_DEPTH_WRITEMASK:
          case GL_CULL_FACE:                 // CULL_FACE through DITHER are natural to IsEnabled,
          case GL_POLYGON_OFFSET_FILL:       // but can be retrieved through the Get{Type}v queries.
          case GL_SAMPLE_ALPHA_TO_COVERAGE:  // For this purpose, they are treated here as
                                             // bool-natural
          case GL_SAMPLE_COVERAGE:
          case GL_SCISSOR_TEST:
          case GL_STENCIL_TEST:
          case GL_DEPTH_TEST:
          case GL_BLEND:
          case GL_DITHER:
          case GL_CONTEXT_ROBUST_ACCESS_EXT:
          {
              *type      = GL_BOOL;
              *numParams = 1;
              return true;
          }
          case GL_COLOR_WRITEMASK:
          {
              *type      = GL_BOOL;
              *numParams = 4;
              return true;
          }
          case GL_POLYGON_OFFSET_FACTOR:
          case GL_POLYGON_OFFSET_UNITS:
          case GL_SAMPLE_COVERAGE_VALUE:
          case GL_DEPTH_CLEAR_VALUE:
          case GL_LINE_WIDTH:
          {
              *type      = GL_FLOAT;
              *numParams = 1;
              return true;
          }
          case GL_ALIASED_LINE_WIDTH_RANGE:
          case GL_ALIASED_POINT_SIZE_RANGE:
          case GL_DEPTH_RANGE:
          {
              *type      = GL_FLOAT;
              *numParams = 2;
              return true;
          }
          case GL_COLOR_CLEAR_VALUE:
          case GL_BLEND_COLOR:
          {
              *type      = GL_FLOAT;
              *numParams = 4;
              return true;
          }
          case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
              if (!getExtensions().maxTextureAnisotropy)
              {
                  return false;
              }
              *type      = GL_FLOAT;
              *numParams = 1;
              return true;
          case GL_TIMESTAMP_EXT:
              if (!getExtensions().disjointTimerQuery)
              {
                  return false;
              }
              *type      = GL_INT_64_ANGLEX;
              *numParams = 1;
              return true;
          case GL_GPU_DISJOINT_EXT:
              if (!getExtensions().disjointTimerQuery)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
          case GL_COVERAGE_MODULATION_CHROMIUM:
              if (!getExtensions().framebufferMixedSamples)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
          case GL_TEXTURE_BINDING_EXTERNAL_OES:
              if (!getExtensions().eglStreamConsumerExternal && !getExtensions().eglImageExternal)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
      }
  
      if (getExtensions().debug)
      {
          switch (pname)
          {
              case GL_DEBUG_LOGGED_MESSAGES:
              case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
              case GL_DEBUG_GROUP_STACK_DEPTH:
              case GL_MAX_DEBUG_MESSAGE_LENGTH:
              case GL_MAX_DEBUG_LOGGED_MESSAGES:
              case GL_MAX_DEBUG_GROUP_STACK_DEPTH:
              case GL_MAX_LABEL_LENGTH:
                  *type      = GL_INT;
                  *numParams = 1;
                  return true;
  
              case GL_DEBUG_OUTPUT_SYNCHRONOUS:
              case GL_DEBUG_OUTPUT:
                  *type      = GL_BOOL;
                  *numParams = 1;
                  return true;
          }
      }
  
      if (getExtensions().multisampleCompatibility)
      {
          switch (pname)
          {
              case GL_MULTISAMPLE_EXT:
              case GL_SAMPLE_ALPHA_TO_ONE_EXT:
                  *type      = GL_BOOL;
                  *numParams = 1;
                  return true;
          }
      }
  
      if (getExtensions().pathRendering)
      {
          switch (pname)
          {
              case GL_PATH_MODELVIEW_MATRIX_CHROMIUM:
              case GL_PATH_PROJECTION_MATRIX_CHROMIUM:
                  *type = GL_FLOAT;
                  *numParams = 16;
                  return true;
          }
      }
  
      if (getExtensions().bindGeneratesResource)
      {
          switch (pname)
          {
              case GL_BIND_GENERATES_RESOURCE_CHROMIUM:
                  *type      = GL_BOOL;
                  *numParams = 1;
                  return true;
          }
      }
  
      if (getExtensions().sRGBWriteControl)
      {
          switch (pname)
          {
              case GL_FRAMEBUFFER_SRGB_EXT:
                  *type      = GL_BOOL;
                  *numParams = 1;
                  return true;
          }
      }
  
      // Check for ES3.0+ parameter names which are also exposed as ES2 extensions
      switch (pname)
      {
          case GL_PACK_ROW_LENGTH:
          case GL_PACK_SKIP_ROWS:
          case GL_PACK_SKIP_PIXELS:
              if ((getClientMajorVersion() < 3) && !getExtensions().packSubimage)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
          case GL_UNPACK_ROW_LENGTH:
          case GL_UNPACK_SKIP_ROWS:
          case GL_UNPACK_SKIP_PIXELS:
              if ((getClientMajorVersion() < 3) && !getExtensions().unpackSubimage)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
          case GL_VERTEX_ARRAY_BINDING:
              if ((getClientMajorVersion() < 3) && !getExtensions().vertexArrayObject)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
          case GL_PIXEL_PACK_BUFFER_BINDING:
          case GL_PIXEL_UNPACK_BUFFER_BINDING:
              if ((getClientMajorVersion() < 3) && !getExtensions().pixelBufferObject)
              {
                  return false;
              }
              *type      = GL_INT;
              *numParams = 1;
              return true;
      }
  
      if (getClientVersion() < Version(3, 0))
      {
          return false;
      }
  
      // Check for ES3.0+ parameter names
      switch (pname)
      {
          case GL_MAX_UNIFORM_BUFFER_BINDINGS:
          case GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT:
          case GL_UNIFORM_BUFFER_BINDING:
          case GL_TRANSFORM_FEEDBACK_BINDING:
          case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
          case GL_COPY_READ_BUFFER_BINDING:
          case GL_COPY_WRITE_BUFFER_BINDING:
          case GL_SAMPLER_BINDING:
          case GL_READ_BUFFER:
          case GL_TEXTURE_BINDING_3D:
          case GL_TEXTURE_BINDING_2D_ARRAY:
          case GL_MAX_3D_TEXTURE_SIZE:
          case GL_MAX_ARRAY_TEXTURE_LAYERS:
          case GL_MAX_VERTEX_UNIFORM_BLOCKS:
          case GL_MAX_FRAGMENT_UNIFORM_BLOCKS:
          case GL_MAX_COMBINED_UNIFORM_BLOCKS:
          case GL_MAX_VERTEX_OUTPUT_COMPONENTS:
          case GL_MAX_FRAGMENT_INPUT_COMPONENTS:
          case GL_MAX_VARYING_COMPONENTS:
          case GL_MAX_VERTEX_UNIFORM_COMPONENTS:
          case GL_MAX_FRAGMENT_UNIFORM_COMPONENTS:
          case GL_MIN_PROGRAM_TEXEL_OFFSET:
          case GL_MAX_PROGRAM_TEXEL_OFFSET:
          case GL_NUM_EXTENSIONS:
          case GL_MAJOR_VERSION:
          case GL_MINOR_VERSION:
          case GL_MAX_ELEMENTS_INDICES:
          case GL_MAX_ELEMENTS_VERTICES:
          case GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS:
          case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS:
          case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS:
          case GL_UNPACK_IMAGE_HEIGHT:
          case GL_UNPACK_SKIP_IMAGES:
          {
              *type      = GL_INT;
              *numParams = 1;
              return true;
          }
  
          case GL_MAX_ELEMENT_INDEX:
          case GL_MAX_UNIFORM_BLOCK_SIZE:
          case GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS:
          case GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS:
          case GL_MAX_SERVER_WAIT_TIMEOUT:
          {
              *type      = GL_INT_64_ANGLEX;
              *numParams = 1;
              return true;
          }
  
          case GL_TRANSFORM_FEEDBACK_ACTIVE:
          case GL_TRANSFORM_FEEDBACK_PAUSED:
          case GL_PRIMITIVE_RESTART_FIXED_INDEX:
          case GL_RASTERIZER_DISCARD:
          {
              *type      = GL_BOOL;
              *numParams = 1;
              return true;
          }
  
          case GL_MAX_TEXTURE_LOD_BIAS:
          {
              *type      = GL_FLOAT;
              *numParams = 1;
              return true;
          }
      }
  
      if (getClientVersion() < Version(3, 1))
      {
          return false;
      }
  
      switch (pname)
      {
          case GL_MAX_FRAMEBUFFER_WIDTH:
          case GL_MAX_FRAMEBUFFER_HEIGHT:
          case GL_MAX_FRAMEBUFFER_SAMPLES:
          case GL_MAX_SAMPLE_MASK_WORDS:
          case GL_MAX_COLOR_TEXTURE_SAMPLES:
          case GL_MAX_DEPTH_TEXTURE_SAMPLES:
          case GL_MAX_INTEGER_SAMPLES:
          case GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET:
          case GL_MAX_VERTEX_ATTRIB_BINDINGS:
          case GL_MAX_VERTEX_ATTRIB_STRIDE:
          case GL_MAX_VERTEX_ATOMIC_COUNTER_BUFFERS:
          case GL_MAX_VERTEX_ATOMIC_COUNTERS:
          case GL_MAX_VERTEX_IMAGE_UNIFORMS:
          case GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS:
          case GL_MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS:
          case GL_MAX_FRAGMENT_ATOMIC_COUNTERS:
          case GL_MAX_FRAGMENT_IMAGE_UNIFORMS:
          case GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS:
          case GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET:
          case GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET:
          case GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS:
          case GL_MAX_COMPUTE_UNIFORM_BLOCKS:
          case GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS:
          case GL_MAX_COMPUTE_SHARED_MEMORY_SIZE:
          case GL_MAX_COMPUTE_UNIFORM_COMPONENTS:
          case GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS:
          case GL_MAX_COMPUTE_ATOMIC_COUNTERS:
          case GL_MAX_COMPUTE_IMAGE_UNIFORMS:
          case GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS:
          case GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS:
          case GL_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
          case GL_MAX_UNIFORM_LOCATIONS:
          case GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS:
          case GL_MAX_ATOMIC_COUNTER_BUFFER_SIZE:
          case GL_MAX_COMBINED_ATOMIC_COUNTER_BUFFERS:
          case GL_MAX_COMBINED_ATOMIC_COUNTERS:
          case GL_MAX_IMAGE_UNITS:
          case GL_MAX_COMBINED_IMAGE_UNIFORMS:
          case GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS:
          case GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS:
          case GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT:
              *type      = GL_INT;
              *numParams = 1;
              return true;
          case GL_MAX_SHADER_STORAGE_BLOCK_SIZE:
              *type      = GL_INT_64_ANGLEX;
              *numParams = 1;
              return true;
      }
  
      return false;
  }
  
  bool ValidationContext::getIndexedQueryParameterInfo(GLenum target,
                                                       GLenum *type,
                                                       unsigned int *numParams)
  {
      if (getClientVersion() < Version(3, 0))
      {
          return false;
      }
  
      switch (target)
      {
          case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
          case GL_UNIFORM_BUFFER_BINDING:
          {
              *type      = GL_INT;
              *numParams = 1;
              return true;
          }
          case GL_TRANSFORM_FEEDBACK_BUFFER_START:
          case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
          case GL_UNIFORM_BUFFER_START:
          case GL_UNIFORM_BUFFER_SIZE:
          {
              *type      = GL_INT_64_ANGLEX;
              *numParams = 1;
              return true;
          }
      }
  
      if (getClientVersion() < Version(3, 1))
      {
          return false;
      }
  
      switch (target)
      {
          case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
          case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
          {
              *type      = GL_INT;
              *numParams = 1;
              return true;
          }
      }
  
      return false;
  }
  
  Program *ValidationContext::getProgram(GLuint handle) const
  {
      return mState.mResourceManager->getProgram(handle);
  }
  
  Shader *ValidationContext::getShader(GLuint handle) const
  {
      return mState.mResourceManager->getShader(handle);
  }
  
  bool ValidationContext::isTextureGenerated(GLuint texture) const
  {
      return mState.mResourceManager->isTextureGenerated(texture);
  }
  
  bool ValidationContext::isBufferGenerated(GLuint buffer) const
  {
      return mState.mResourceManager->isBufferGenerated(buffer);
  }
  
  bool ValidationContext::isRenderbufferGenerated(GLuint renderbuffer) const
  {
      return mState.mResourceManager->isRenderbufferGenerated(renderbuffer);
  }
  
  bool ValidationContext::isFramebufferGenerated(GLuint framebuffer) const
  {
      ASSERT(mState.mFramebufferMap.find(0) != mState.mFramebufferMap.end());
      return mState.mFramebufferMap.find(framebuffer) != mState.mFramebufferMap.end();
  }
  
  }  // namespace gl