[Bf-blender-cvs] [ed64ccfa59c] epoxy: OpenSubdiv: replace GLEW by libepoxy

[Christian Rauch]

Commit: ed64ccfa59cb322995997aeae3ba855b5b520b95
Author: Christian Rauch
Date:   Sat Jun 25 01:56:47 2022 +0100
Branches: epoxy
https://developer.blender.org/rBed64ccfa59cb322995997aeae3ba855b5b520b95

OpenSubdiv: replace GLEW by libepoxy

===================================================================

M	intern/opensubdiv/internal/device/device_context_glsl_compute.cc
M	intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc
M	intern/opensubdiv/internal/evaluator/eval_output.h
M	intern/opensubdiv/internal/evaluator/gl_compute_evaluator.cc
M	intern/opensubdiv/internal/evaluator/gl_compute_evaluator.h

===================================================================

diff --git a/intern/opensubdiv/internal/device/device_context_glsl_compute.cc b/intern/opensubdiv/internal/device/device_context_glsl_compute.cc
index 7b416976099..5e627e290f5 100644
--- a/intern/opensubdiv/internal/device/device_context_glsl_compute.cc
+++ b/intern/opensubdiv/internal/device/device_context_glsl_compute.cc
@@ -18,14 +18,14 @@
 
 #include "internal/device/device_context_glsl_compute.h"
 
-#include <GL/glew.h>
+#include <epoxy/gl.h>
 
 namespace blender {
 namespace opensubdiv {
 
 bool GLSLComputeDeviceContext::isSupported()
 {
-  return GLEW_VERSION_4_3 || GLEW_ARB_compute_shader;
+  return epoxy_gl_version() >= 43 || epoxy_has_gl_extension("GL_ARB_compute_shader");
 }
 
 GLSLComputeDeviceContext::GLSLComputeDeviceContext()
diff --git a/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc b/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc
index ef897608b6e..1768da8e9d4 100644
--- a/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc
+++ b/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc
@@ -18,14 +18,14 @@
 
 #include "internal/device/device_context_glsl_transform_feedback.h"
 
-#include <GL/glew.h>
+#include <epoxy/gl.h>
 
 namespace blender {
 namespace opensubdiv {
 
 bool GLSLTransformFeedbackDeviceContext::isSupported()
 {
-  return GLEW_VERSION_4_1;
+  return epoxy_gl_version() >= 41;
 }
 
 GLSLTransformFeedbackDeviceContext::GLSLTransformFeedbackDeviceContext()
diff --git a/intern/opensubdiv/internal/evaluator/eval_output.h b/intern/opensubdiv/internal/evaluator/eval_output.h
index e8480e8d816..286ffaafecb 100644
--- a/intern/opensubdiv/internal/evaluator/eval_output.h
+++ b/intern/opensubdiv/internal/evaluator/eval_output.h
@@ -19,6 +19,8 @@
 #ifndef OPENSUBDIV_EVAL_OUTPUT_H_
 #define OPENSUBDIV_EVAL_OUTPUT_H_
 
+#undef OSD_USES_GLEW
+
 #include <opensubdiv/osd/cpuPatchTable.h>
 #include <opensubdiv/osd/glPatchTable.h>
 #include <opensubdiv/osd/mesh.h>
diff --git a/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.cc b/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.cc
index c2ab2a522d2..df747e23d2a 100644
--- a/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.cc
+++ b/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.cc
@@ -22,9 +22,9 @@
 //   language governing permissions and limitations under the Apache License.
 //
 
-#include "gl_compute_evaluator.h"
+#include <epoxy/gl.h>
 
-#include <GL/glew.h>
+#include "gl_compute_evaluator.h"
 
 #include <opensubdiv/far/error.h>
 #include <opensubdiv/far/patchDescriptor.h>
@@ -57,7 +57,7 @@ template<class T> GLuint createSSBO(std::vector<T> const &src)
   GLuint devicePtr = 0;
 
 #if defined(GL_ARB_direct_state_access)
-  if (GLEW_ARB_direct_state_access) {
+  if (epoxy_has_gl_extension("GL_ARB_direct_state_access")) {
     glCreateBuffers(1, &devicePtr);
     glNamedBufferData(devicePtr, src.size() * sizeof(T), &src.at(0), GL_STATIC_DRAW);
   }
diff --git a/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.h b/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.h
index 85c12f73b08..07d13aa21bd 100644
--- a/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.h
+++ b/intern/opensubdiv/internal/evaluator/gl_compute_evaluator.h
@@ -25,6 +25,8 @@
 #ifndef OPENSUBDIV_GL_COMPUTE_EVALUATOR_H_
 #define OPENSUBDIV_GL_COMPUTE_EVALUATOR_H_
 
+#undef OSD_USES_GLEW
+
 #include <opensubdiv/osd/bufferDescriptor.h>
 #include <opensubdiv/osd/opengl.h>
 #include <opensubdiv/osd/types.h>