[TARGET] Phase out WebGL

CMakeLists.txt

@@ -24,7 +24,6 @@ endif()
 tvm_option(USE_CUDA "Build with CUDA" OFF)
 tvm_option(USE_OPENCL "Build with OpenCL" OFF)
 tvm_option(USE_VULKAN "Build with Vulkan" OFF)
-tvm_option(USE_OPENGL "Build with OpenGL" OFF)
 tvm_option(USE_METAL "Build with Metal" OFF)
 tvm_option(USE_ROCM "Build with ROCM" OFF)
 tvm_option(ROCM_PATH "The path to rocm" /opt/rocm)
@@ -308,7 +307,6 @@ include(cmake/modules/VTA.cmake)
 include(cmake/modules/CUDA.cmake)
 include(cmake/modules/Hexagon.cmake)
 include(cmake/modules/OpenCL.cmake)
-include(cmake/modules/OpenGL.cmake)
 include(cmake/modules/OpenMP.cmake)
 include(cmake/modules/Vulkan.cmake)
 include(cmake/modules/Metal.cmake)

include/tvm/runtime/device_api.h

@@ -224,8 +224,6 @@ inline const char* DeviceName(int type) {
       return "vpi";
     case kDLROCM:
       return "rocm";
-    case kOpenGL:
-      return "opengl";
     case kDLExtDev:
       return "ext_dev";
     case kDLWebGPU:

include/tvm/te/schedule.h

@@ -251,11 +251,6 @@ class Stage : public ObjectRef {
    * \return reference to self.
    */
   TVM_DLL Stage& double_buffer();  // NOLINT(*)
-  /*!
-   * \brief Schedule for OpenGL fragment shader.
-   * \return reference to self.
-   */
-  Stage& opengl();  // NOLINT(*)
   /*!
    * \brief whether the stage has been scheduled.
    * \return whether the stage has been scheduled.
@@ -478,8 +473,6 @@ class StageNode : public Object {
   std::string scope;
   /*! \brief Whether this is an output stage */
   bool is_output{false};
-  /*! \brief Whether this is an OpenGL stage */
-  bool is_opengl{false};
   /*! \brief Whether apply double buffer optimization to this stage */
   bool double_buffer{false};
   /*!
@@ -503,7 +496,6 @@ class StageNode : public Object {
     v->Visit("attach_stage", &attach_stage);
     v->Visit("scope", &scope);
     v->Visit("is_output", &is_output);
-    v->Visit("is_opengl", &is_opengl);
     v->Visit("double_buffer", &double_buffer);
     v->Visit("group", &group);
     v->Visit("num_child_stages", &num_child_stages);

include/tvm/tir/expr.h

@@ -745,7 +745,6 @@ class CallNode : public PrimExprNode {
   static constexpr const char* shift_right = "shift_right";
   static constexpr const char* popcount = "popcount";
   static constexpr const char* likely = "likely";
-  static constexpr const char* glsl_texture_store = "glsl_texture_store";
   static constexpr const char* prefetch = "prefetch";
   static constexpr const char* isnan = "isnan";
   static constexpr const char* isfinite = "isfinite";

include/tvm/tir/stmt.h

@@ -893,13 +893,6 @@ constexpr const char* channel_write_advance = "channel_write_advance";
 constexpr const char* pipeline_stage_scope = "pipeline_stage_scope";
 /*! \brief pipeline execution scope, implies the scope can be pipelined. */
 constexpr const char* pipeline_exec_scope = "pipeline_exec_scope";
-/*!
- * \brief Mark that this stage is an OpenGL shader. Since OpenGL shader only
- * allows writing out to one element of the output texture, the Provide node
- * gets translated to a special Call::glsl_texture_store statement instead of a
- * Store statement.
- */
-constexpr const char* opengl_stage_scope = "opengl_stage_scope";
 
 /*!
  * \brief Mark that it is in the device scope.

src/runtime/module.cc

@@ -127,8 +127,6 @@ bool RuntimeEnabled(const std::string& target) {
     f_name = "device_api.gpu";
   } else if (target == "cl" || target == "opencl" || target == "sdaccel") {
     f_name = "device_api.opencl";
-  } else if (target == "gl" || target == "opengl") {
-    f_name = "device_api.opengl";
   } else if (target == "mtl" || target == "metal") {
     f_name = "device_api.metal";
   } else if (target == "vulkan") {