kc3-lang/angle/src/libANGLE/Context_gles_1_0.cpp

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• Hash : 51320fab
  Author :
  Date : 2023-07-06T16:01:58
  

  Make most GLES1 entry points lockless
  
  These entry points only set context-local state and thus don't require
  locking.
  
  Bug: angleproject:8224
  Change-Id: I80223340348d62a56109324ab3e4f935e53419b3
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4670407
  Reviewed-by: Igor Nazarov <i.nazarov@samsung.com>
  Reviewed-by: Charlie Lao <cclao@google.com>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/Context_gles_1_0.cpp

• //
  // Copyright 2018 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.
  //
  
  // Context_gles_1_0.cpp: Implements the GLES1-specific parts of Context.
  
  #include "libANGLE/Context.h"
  
  #include "common/mathutil.h"
  #include "common/utilities.h"
  
  #include "libANGLE/GLES1Renderer.h"
  #include "libANGLE/queryconversions.h"
  #include "libANGLE/queryutils.h"
  
  namespace gl
  {
  
  void Context::clientActiveTexture(GLenum texture)
  {
      getMutableGLES1State()->setClientTextureUnit(texture - GL_TEXTURE0);
      mStateCache.onGLES1ClientStateChange(this);
  }
  
  void Context::colorPointer(GLint size, VertexAttribType type, GLsizei stride, const void *ptr)
  {
      // Note that we normalize data for UnsignedByte types. This is to match the behavior
      // of current native GLES drivers.
      vertexAttribPointer(vertexArrayIndex(ClientVertexArrayType::Color), size, type,
                          type == VertexAttribType::UnsignedByte, stride, ptr);
  }
  
  void Context::disableClientState(ClientVertexArrayType clientState)
  {
      getMutableGLES1State()->setClientStateEnabled(clientState, false);
      disableVertexAttribArray(vertexArrayIndex(clientState));
      mStateCache.onGLES1ClientStateChange(this);
  }
  
  void Context::enableClientState(ClientVertexArrayType clientState)
  {
      getMutableGLES1State()->setClientStateEnabled(clientState, true);
      enableVertexAttribArray(vertexArrayIndex(clientState));
      mStateCache.onGLES1ClientStateChange(this);
  }
  
  void Context::getFixedv(GLenum pname, GLfixed *params)
  {
      GLenum nativeType;
      unsigned int numParams = 0;
  
      getQueryParameterInfo(pname, &nativeType, &numParams);
  
      std::vector<GLfloat> paramsf(numParams, 0);
      CastStateValues(this, nativeType, pname, numParams, paramsf.data());
  
      for (unsigned int i = 0; i < numParams; i++)
      {
          params[i] = ConvertFloatToFixed(paramsf[i]);
      }
  }
  
  void Context::getTexParameterxv(TextureType target, GLenum pname, GLfixed *params)
  {
      const Texture *const texture = getTextureByType(target);
      QueryTexParameterxv(this, texture, pname, params);
  }
  
  void Context::normalPointer(VertexAttribType type, GLsizei stride, const void *ptr)
  {
      vertexAttribPointer(vertexArrayIndex(ClientVertexArrayType::Normal), 3, type, GL_FALSE, stride,
                          ptr);
  }
  
  void Context::texCoordPointer(GLint size, VertexAttribType type, GLsizei stride, const void *ptr)
  {
      vertexAttribPointer(vertexArrayIndex(ClientVertexArrayType::TextureCoord), size, type, GL_FALSE,
                          stride, ptr);
  }
  
  void Context::texParameterx(TextureType target, GLenum pname, GLfixed param)
  {
      Texture *const texture = getTextureByType(target);
      SetTexParameterx(this, texture, pname, param);
  }
  
  void Context::texParameterxv(TextureType target, GLenum pname, const GLfixed *params)
  {
      Texture *const texture = getTextureByType(target);
      SetTexParameterxv(this, texture, pname, params);
  }
  
  void Context::vertexPointer(GLint size, VertexAttribType type, GLsizei stride, const void *ptr)
  {
      vertexAttribPointer(vertexArrayIndex(ClientVertexArrayType::Vertex), size, type, GL_FALSE,
                          stride, ptr);
  }
  
  // GL_OES_draw_texture
  void Context::drawTexf(float x, float y, float z, float width, float height)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(), x, y, z, width, height);
  }
  
  void Context::drawTexfv(const GLfloat *coords)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(), coords[0], coords[1],
                                  coords[2], coords[3], coords[4]);
  }
  
  void Context::drawTexi(GLint x, GLint y, GLint z, GLint width, GLint height)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(), static_cast<GLfloat>(x),
                                  static_cast<GLfloat>(y), static_cast<GLfloat>(z),
                                  static_cast<GLfloat>(width), static_cast<GLfloat>(height));
  }
  
  void Context::drawTexiv(const GLint *coords)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(),
                                  static_cast<GLfloat>(coords[0]), static_cast<GLfloat>(coords[1]),
                                  static_cast<GLfloat>(coords[2]), static_cast<GLfloat>(coords[3]),
                                  static_cast<GLfloat>(coords[4]));
  }
  
  void Context::drawTexs(GLshort x, GLshort y, GLshort z, GLshort width, GLshort height)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(), static_cast<GLfloat>(x),
                                  static_cast<GLfloat>(y), static_cast<GLfloat>(z),
                                  static_cast<GLfloat>(width), static_cast<GLfloat>(height));
  }
  
  void Context::drawTexsv(const GLshort *coords)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(),
                                  static_cast<GLfloat>(coords[0]), static_cast<GLfloat>(coords[1]),
                                  static_cast<GLfloat>(coords[2]), static_cast<GLfloat>(coords[3]),
                                  static_cast<GLfloat>(coords[4]));
  }
  
  void Context::drawTexx(GLfixed x, GLfixed y, GLfixed z, GLfixed width, GLfixed height)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(), ConvertFixedToFloat(x),
                                  ConvertFixedToFloat(y), ConvertFixedToFloat(z),
                                  ConvertFixedToFloat(width), ConvertFixedToFloat(height));
  }
  
  void Context::drawTexxv(const GLfixed *coords)
  {
      mGLES1Renderer->drawTexture(this, &mState, getMutableGLES1State(),
                                  ConvertFixedToFloat(coords[0]), ConvertFixedToFloat(coords[1]),
                                  ConvertFixedToFloat(coords[2]), ConvertFixedToFloat(coords[3]),
                                  ConvertFixedToFloat(coords[4]));
  }
  
  // GL_OES_matrix_palette
  void Context::currentPaletteMatrix(GLuint matrixpaletteindex)
  {
      UNIMPLEMENTED();
  }
  
  void Context::loadPaletteFromModelViewMatrix()
  {
      UNIMPLEMENTED();
  }
  
  void Context::matrixIndexPointer(GLint size, GLenum type, GLsizei stride, const void *pointer)
  {
      UNIMPLEMENTED();
  }
  
  void Context::weightPointer(GLint size, GLenum type, GLsizei stride, const void *pointer)
  {
      UNIMPLEMENTED();
  }
  
  // GL_OES_point_size_array
  void Context::pointSizePointer(VertexAttribType type, GLsizei stride, const void *ptr)
  {
      vertexAttribPointer(vertexArrayIndex(ClientVertexArrayType::PointSize), 1, type, GL_FALSE,
                          stride, ptr);
  }
  
  // GL_OES_query_matrix
  GLbitfield Context::queryMatrixx(GLfixed *mantissa, GLint *exponent)
  {
      UNIMPLEMENTED();
      return 0;
  }
  
  // GL_OES_texture_cube_map
  void Context::getTexGenfv(GLenum coord, GLenum pname, GLfloat *params)
  {
      UNIMPLEMENTED();
  }
  
  void Context::getTexGeniv(GLenum coord, GLenum pname, GLint *params)
  {
      UNIMPLEMENTED();
  }
  
  void Context::getTexGenxv(GLenum coord, GLenum pname, GLfixed *params)
  {
      UNIMPLEMENTED();
  }
  
  void Context::texGenf(GLenum coord, GLenum pname, GLfloat param)
  {
      UNIMPLEMENTED();
  }
  
  void Context::texGenfv(GLenum coord, GLenum pname, const GLfloat *params)
  {
      UNIMPLEMENTED();
  }
  
  void Context::texGeni(GLenum coord, GLenum pname, GLint param)
  {
      UNIMPLEMENTED();
  }
  
  void Context::texGeniv(GLenum coord, GLenum pname, const GLint *params)
  {
      UNIMPLEMENTED();
  }
  
  void Context::texGenx(GLenum coord, GLenum pname, GLfixed param)
  {
      UNIMPLEMENTED();
  }
  
  void Context::texGenxv(GLenum coord, GLenum pname, const GLint *params)
  {
      UNIMPLEMENTED();
  }
  
  int Context::vertexArrayIndex(ClientVertexArrayType type) const
  {
      return GLES1Renderer::VertexArrayIndex(type, mState.gles1());
  }
  
  // static
  int Context::TexCoordArrayIndex(unsigned int unit)
  {
      return GLES1Renderer::TexCoordArrayIndex(unit);
  }
  }  // namespace gl
  

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