kc3-lang/angle/util/shader_utils.h

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• Hash : 3591997b
  Author :
  Date : 2020-10-28T14:52:44
  

  Roll Vulkan-Loader from 8e2b7d03ccfd to 8308d6744d50 (2 revisions)
  
  https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Loader.git/+log/8e2b7d03ccfd..8308d6744d50
  
  2020-10-28 shabbyx@gmail.com Generate libvulkan.so.1 on Linux instead of libvulkan.so
  2020-10-27 shannon@lunarg.com build: Update known-good files for 1.2.158 header
  
  Bug: angleproject:5216
  Change-Id: I74e10c44950f3be05cc12f22b44f1627af08ca81
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2506196
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• util/shader_utils.h

• //
  // Copyright 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.
  //
  
  #ifndef SAMPLE_UTIL_SHADER_UTILS_H
  #define SAMPLE_UTIL_SHADER_UTILS_H
  
  #include <functional>
  #include <string>
  #include <vector>
  
  #include "util/util_export.h"
  #include "util/util_gl.h"
  
  ANGLE_UTIL_EXPORT GLuint CheckLinkStatusAndReturnProgram(GLuint program, bool outputErrorMessages);
  ANGLE_UTIL_EXPORT GLuint GetProgramShader(GLuint program, GLint requestedType);
  ANGLE_UTIL_EXPORT GLuint CompileShader(GLenum type, const char *source);
  ANGLE_UTIL_EXPORT GLuint CompileShaderFromFile(GLenum type, const std::string &sourcePath);
  
  ANGLE_UTIL_EXPORT GLuint
  CompileProgramWithTransformFeedback(const char *vsSource,
                                      const char *fsSource,
                                      const std::vector<std::string> &transformFeedbackVaryings,
                                      GLenum bufferMode);
  
  ANGLE_UTIL_EXPORT GLuint CompileProgram(const char *vsSource, const char *fsSource);
  
  ANGLE_UTIL_EXPORT GLuint CompileProgram(const char *vsSource,
                                          const char *fsSource,
                                          const std::function<void(GLuint)> &preLinkCallback);
  
  ANGLE_UTIL_EXPORT GLuint CompileProgramWithGS(const char *vsSource,
                                                const char *gsSource,
                                                const char *fsSource);
  ANGLE_UTIL_EXPORT GLuint CompileProgramFromFiles(const std::string &vsPath,
                                                   const std::string &fsPath);
  ANGLE_UTIL_EXPORT GLuint CompileComputeProgram(const char *csSource,
                                                 bool outputErrorMessages = true);
  ANGLE_UTIL_EXPORT bool LinkAttachedProgram(GLuint program);
  
  ANGLE_UTIL_EXPORT GLuint LoadBinaryProgramOES(const std::vector<uint8_t> &binary,
                                                GLenum binaryFormat);
  ANGLE_UTIL_EXPORT GLuint LoadBinaryProgramES3(const std::vector<uint8_t> &binary,
                                                GLenum binaryFormat);
  
  ANGLE_UTIL_EXPORT void EnableDebugCallback(const void *userParam);
  
  namespace angle
  {
  
  namespace essl1_shaders
  {
  
  ANGLE_UTIL_EXPORT const char *PositionAttrib();
  ANGLE_UTIL_EXPORT const char *ColorUniform();
  ANGLE_UTIL_EXPORT const char *Texture2DUniform();
  
  namespace vs
  {
  
  // A shader that sets gl_Position to zero.
  ANGLE_UTIL_EXPORT const char *Zero();
  
  // A shader that sets gl_Position to attribute a_position.
  ANGLE_UTIL_EXPORT const char *Simple();
  
  // A shader that passes through attribute a_position, setting it to gl_Position and varying
  // v_position.
  ANGLE_UTIL_EXPORT const char *Passthrough();
  
  // A shader that simply passes through attribute a_position, setting it to gl_Position and varying
  // texcoord.
  ANGLE_UTIL_EXPORT const char *Texture2D();
  
  }  // namespace vs
  
  namespace fs
  {
  
  // A shader that renders a simple checker pattern of different colors. X axis and Y axis separate
  // the different colors. Needs varying v_position.
  //
  // - X < 0 && y < 0: Red
  // - X < 0 && y >= 0: Green
  // - X >= 0 && y < 0: Blue
  // - X >= 0 && y >= 0: Yellow
  ANGLE_UTIL_EXPORT const char *Checkered();
  
  // A shader that fills with color taken from uniform named "color".
  ANGLE_UTIL_EXPORT const char *UniformColor();
  
  // A shader that fills with 100% opaque red.
  ANGLE_UTIL_EXPORT const char *Red();
  
  // A shader that fills with 100% opaque green.
  ANGLE_UTIL_EXPORT const char *Green();
  
  // A shader that fills with 100% opaque blue.
  ANGLE_UTIL_EXPORT const char *Blue();
  
  // A shader that samples the texture
  ANGLE_UTIL_EXPORT const char *Texture2D();
  
  }  // namespace fs
  }  // namespace essl1_shaders
  
  namespace essl3_shaders
  {
  
  ANGLE_UTIL_EXPORT const char *PositionAttrib();
  ANGLE_UTIL_EXPORT const char *Texture2DUniform();
  ANGLE_UTIL_EXPORT const char *LodUniform();
  
  namespace vs
  {
  
  // A shader that sets gl_Position to zero.
  ANGLE_UTIL_EXPORT const char *Zero();
  
  // A shader that sets gl_Position to attribute a_position.
  ANGLE_UTIL_EXPORT const char *Simple();
  
  // A shader that simply passes through attribute a_position, setting it to gl_Position and varying
  // v_position.
  ANGLE_UTIL_EXPORT const char *Passthrough();
  
  // A shader that simply passes through attribute a_position, setting it to gl_Position and varying
  // texcoord.
  ANGLE_UTIL_EXPORT const char *Texture2DLod();
  
  }  // namespace vs
  
  namespace fs
  {
  
  // A shader that fills with 100% opaque red.
  ANGLE_UTIL_EXPORT const char *Red();
  
  // A shader that fills with 100% opaque green.
  ANGLE_UTIL_EXPORT const char *Green();
  
  // A shader that fills with 100% opaque blue.
  ANGLE_UTIL_EXPORT const char *Blue();
  
  // A shader that samples the texture at a given lod.
  ANGLE_UTIL_EXPORT const char *Texture2DLod();
  
  }  // namespace fs
  }  // namespace essl3_shaders
  
  namespace essl31_shaders
  {
  
  ANGLE_UTIL_EXPORT const char *PositionAttrib();
  
  namespace vs
  {
  
  // A shader that sets gl_Position to zero.
  ANGLE_UTIL_EXPORT const char *Zero();
  
  // A shader that sets gl_Position to attribute a_position.
  ANGLE_UTIL_EXPORT const char *Simple();
  
  // A shader that simply passes through attribute a_position, setting it to gl_Position and varying
  // v_position.
  ANGLE_UTIL_EXPORT const char *Passthrough();
  
  }  // namespace vs
  
  namespace fs
  {
  
  // A shader that fills with 100% opaque red.
  ANGLE_UTIL_EXPORT const char *Red();
  
  // A shader that fills with 100% opaque green.
  ANGLE_UTIL_EXPORT const char *Green();
  
  // A shader that renders a simple gradient of red to green. Needs varying v_position.
  ANGLE_UTIL_EXPORT const char *RedGreenGradient();
  
  }  // namespace fs
  }  // namespace essl31_shaders
  }  // namespace angle
  
  #endif  // SAMPLE_UTIL_SHADER_UTILS_H
  

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