GPU: replace GLEW with libepoxy

With libepoxy we can choose between EGL and GLX at runtime, as well as
dynamically open EGL and GLX libraries without linking to them.

This will make it possible to build with Wayland, EGL, GLVND support while
still running on systems that only have X11, GLX and libGL. It also paves
the way for headless rendering through EGL.

libepoxy is a new library dependency, and is included in the precompiled
libraries. GLEW is no longer a dependency, and WITH_SYSTEM_GLEW was removed.

Includes contributions by Brecht Van Lommel, Ray Molenkamp, Campbell Barton
and Sergey Sharybin.

Ref T76428

Differential Revision: https://developer.blender.org/D15291

20 files changed, 71 insertions, 77 deletions

diff --git a/source/blender/gpu/opengl/gl_backend.cc b/source/blender/gpu/opengl/gl_backend.cc
index 4869bff2737..6a1577fb907 100644
--- a/source/blender/gpu/opengl/gl_backend.cc
+++ b/source/blender/gpu/opengl/gl_backend.cc
@@ -51,7 +51,12 @@ void GLBackend::platform_init()
   os = GPU_OS_UNIX;
 #endif
 
-  if (strstr(vendor, "ATI") || strstr(vendor, "AMD")) {
+  if (!vendor) {
+    printf("Warning: No OpenGL vendor detected.\n");
+    device = GPU_DEVICE_UNKNOWN;
+    driver = GPU_DRIVER_ANY;
+  }
+  else if (strstr(vendor, "ATI") || strstr(vendor, "AMD")) {
     device = GPU_DEVICE_ATI;
     driver = GPU_DRIVER_OFFICIAL;
   }
@@ -113,7 +118,7 @@ void GLBackend::platform_init()
   }
 
   /* Detect support level */
-  if (!GLEW_VERSION_3_3) {
+  if (!(epoxy_gl_version() >= 33)) {
     support_level = GPU_SUPPORT_LEVEL_UNSUPPORTED;
   }
   else {
@@ -243,14 +248,14 @@ static void detect_workarounds()
     return;
   }
 
-  /* Limit support for GLEW_ARB_base_instance to OpenGL 4.0 and higher. NVIDIA Quadro FX 4800
-   * (TeraScale) report that they support GLEW_ARB_base_instance, but the driver does not support
+  /* Limit support for GL_ARB_base_instance to OpenGL 4.0 and higher. NVIDIA Quadro FX 4800
+   * (TeraScale) report that they support GL_ARB_base_instance, but the driver does not support
    * GLEW_ARB_draw_indirect as it has an OpenGL3 context what also matches the minimum needed
    * requirements.
    *
    * We use it as a target for glMapBuffer(Range) what is part of the OpenGL 4 API. So better
    * disable it when we don't have an OpenGL4 context (See T77657) */
-  if (!GLEW_VERSION_4_0) {
+  if (!(epoxy_gl_version() >= 40)) {
     GLContext::base_instance_support = false;
   }
   if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_WIN, GPU_DRIVER_OFFICIAL) &&
@@ -313,7 +318,8 @@ static void detect_workarounds()
   /* Limit this fix to older hardware with GL < 4.5. This means Broadwell GPUs are
    * covered since they only support GL 4.4 on windows.
    * This fixes some issues with workbench anti-aliasing on Win + Intel GPU. (see T76273) */
-  if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_WIN, GPU_DRIVER_OFFICIAL) && !GLEW_VERSION_4_5) {
+  if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_WIN, GPU_DRIVER_OFFICIAL) &&
+      !(epoxy_gl_version() >= 45)) {
     GLContext::copy_image_support = false;
   }
   /* Special fix for these specific GPUs.
@@ -328,7 +334,7 @@ static void detect_workarounds()
        strstr(renderer, "HD Graphics 2500"))) {
     GLContext::texture_cube_map_array_support = false;
   }
-  /* Maybe not all of these drivers have problems with `GLEW_ARB_base_instance`.
+  /* Maybe not all of these drivers have problems with `GL_ARB_base_instance`.
    * But it's hard to test each case.
    * We get crashes from some crappy Intel drivers don't work well with shaders created in
    * different rendering contexts. */
@@ -353,7 +359,8 @@ static void detect_workarounds()
   }
   /* There is a bug on older Nvidia GPU where GL_ARB_texture_gather
    * is reported to be supported but yield a compile error (see T55802). */
-  if (GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_ANY, GPU_DRIVER_ANY) && !GLEW_VERSION_4_0) {
+  if (GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_ANY, GPU_DRIVER_ANY) &&
+      !(epoxy_gl_version() >= 40)) {
     GLContext::texture_gather_support = false;
   }
 
@@ -457,7 +464,7 @@ float GLContext::derivative_signs[2] = {1.0f, 1.0f};
 
 void GLBackend::capabilities_init()
 {
-  BLI_assert(GLEW_VERSION_3_3);
+  BLI_assert(epoxy_gl_version() >= 33);
   /* Common Capabilities. */
   glGetIntegerv(GL_MAX_TEXTURE_SIZE, &GCaps.max_texture_size);
   glGetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS, &GCaps.max_texture_layers);
@@ -482,9 +489,11 @@ void GLBackend::capabilities_init()
   glGetIntegerv(GL_NUM_EXTENSIONS, &GCaps.extensions_len);
   GCaps.extension_get = gl_extension_get;
 
-  GCaps.mem_stats_support = GLEW_NVX_gpu_memory_info || GLEW_ATI_meminfo;
-  GCaps.shader_image_load_store_support = GLEW_ARB_shader_image_load_store;
-  GCaps.compute_shader_support = GLEW_ARB_compute_shader && GLEW_VERSION_4_3;
+  GCaps.mem_stats_support = epoxy_has_gl_extension("GL_NVX_gpu_memory_info") ||
+                            epoxy_has_gl_extension("GL_ATI_meminfo");
+  GCaps.shader_image_load_store_support = epoxy_has_gl_extension("GL_ARB_shader_image_load_store");
+  GCaps.compute_shader_support = epoxy_has_gl_extension("GL_ARB_compute_shader") &&
+                                 epoxy_gl_version() >= 43;
   if (GCaps.compute_shader_support) {
     glGetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_COUNT, 0, &GCaps.max_work_group_count[0]);
     glGetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_COUNT, 1, &GCaps.max_work_group_count[1]);
@@ -496,7 +505,8 @@ void GLBackend::capabilities_init()
                   &GCaps.max_shader_storage_buffer_bindings);
     glGetIntegerv(GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS, &GCaps.max_compute_shader_storage_blocks);
   }
-  GCaps.shader_storage_buffer_objects_support = GLEW_ARB_shader_storage_buffer_object;
+  GCaps.shader_storage_buffer_objects_support = epoxy_has_gl_extension(
+      "GL_ARB_shader_storage_buffer_object");
   /* GL specific capabilities. */
   glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &GLContext::max_texture_3d_size);
   glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &GLContext::max_cubemap_size);
@@ -506,25 +516,32 @@ void GLBackend::capabilities_init()
     glGetIntegerv(GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS, &GLContext::max_ssbo_binds);
     glGetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &GLContext::max_ssbo_size);
   }
-  GLContext::base_instance_support = GLEW_ARB_base_instance;
-  GLContext::clear_texture_support = GLEW_ARB_clear_texture;
-  GLContext::copy_image_support = GLEW_ARB_copy_image;
-  GLContext::debug_layer_support = GLEW_VERSION_4_3 || GLEW_KHR_debug || GLEW_ARB_debug_output;
-  GLContext::direct_state_access_support = GLEW_ARB_direct_state_access;
-  GLContext::explicit_location_support = GLEW_VERSION_4_3;
-  GLContext::geometry_shader_invocations = GLEW_ARB_gpu_shader5;
-  GLContext::fixed_restart_index_support = GLEW_ARB_ES3_compatibility;
-  GLContext::layered_rendering_support = GLEW_AMD_vertex_shader_layer;
-  GLContext::native_barycentric_support = GLEW_AMD_shader_explicit_vertex_parameter;
-  GLContext::multi_bind_support = GLEW_ARB_multi_bind;
-  GLContext::multi_draw_indirect_support = GLEW_ARB_multi_draw_indirect;
-  GLContext::shader_draw_parameters_support = GLEW_ARB_shader_draw_parameters;
-  GLContext::stencil_texturing_support = GLEW_VERSION_4_3;
-  GLContext::texture_cube_map_array_support = GLEW_ARB_texture_cube_map_array;
-  GLContext::texture_filter_anisotropic_support = GLEW_EXT_texture_filter_anisotropic;
-  GLContext::texture_gather_support = GLEW_ARB_texture_gather;
-  GLContext::texture_storage_support = GLEW_VERSION_4_3;
-  GLContext::vertex_attrib_binding_support = GLEW_ARB_vertex_attrib_binding;
+  GLContext::base_instance_support = epoxy_has_gl_extension("GL_ARB_base_instance");
+  GLContext::clear_texture_support = epoxy_has_gl_extension("GL_ARB_clear_texture");
+  GLContext::copy_image_support = epoxy_has_gl_extension("GL_ARB_copy_image");
+  GLContext::debug_layer_support = epoxy_gl_version() >= 43 ||
+                                   epoxy_has_gl_extension("GL_KHR_debug") ||
+                                   epoxy_has_gl_extension("GL_ARB_debug_output");
+  GLContext::direct_state_access_support = epoxy_has_gl_extension("GL_ARB_direct_state_access");
+  GLContext::explicit_location_support = epoxy_gl_version() >= 43;
+  GLContext::geometry_shader_invocations = epoxy_has_gl_extension("GL_ARB_gpu_shader5");
+  GLContext::fixed_restart_index_support = epoxy_has_gl_extension("GL_ARB_ES3_compatibility");
+  GLContext::layered_rendering_support = epoxy_has_gl_extension("GL_AMD_vertex_shader_layer");
+  GLContext::native_barycentric_support = epoxy_has_gl_extension(
+      "GL_AMD_shader_explicit_vertex_parameter");
+  GLContext::multi_bind_support = epoxy_has_gl_extension("GL_ARB_multi_bind");
+  GLContext::multi_draw_indirect_support = epoxy_has_gl_extension("GL_ARB_multi_draw_indirect");
+  GLContext::shader_draw_parameters_support = epoxy_has_gl_extension(
+      "GL_ARB_shader_draw_parameters");
+  GLContext::stencil_texturing_support = epoxy_gl_version() >= 43;
+  GLContext::texture_cube_map_array_support = epoxy_has_gl_extension(
+      "GL_ARB_texture_cube_map_array");
+  GLContext::texture_filter_anisotropic_support = epoxy_has_gl_extension(
+      "GL_EXT_texture_filter_anisotropic");
+  GLContext::texture_gather_support = epoxy_has_gl_extension("GL_ARB_texture_gather");
+  GLContext::texture_storage_support = epoxy_gl_version() >= 43;
+  GLContext::vertex_attrib_binding_support = epoxy_has_gl_extension(
+      "GL_ARB_vertex_attrib_binding");
 
   detect_workarounds();
 
diff --git a/source/blender/gpu/opengl/gl_batch.hh b/source/blender/gpu/opengl/gl_batch.hh
index bb53d9b31f1..0d7ea7c4a9e 100644
--- a/source/blender/gpu/opengl/gl_batch.hh
+++ b/source/blender/gpu/opengl/gl_batch.hh
@@ -17,8 +17,6 @@
 #include "gl_index_buffer.hh"
 #include "gl_vertex_buffer.hh"
 
-#include "glew-mx.h"
-
 namespace blender {
 namespace gpu {
 
diff --git a/source/blender/gpu/opengl/gl_context.cc b/source/blender/gpu/opengl/gl_context.cc
index e6af126e9cd..448e10fb0ed 100644
--- a/source/blender/gpu/opengl/gl_context.cc
+++ b/source/blender/gpu/opengl/gl_context.cc
@@ -304,12 +304,12 @@ void GLContext::vao_cache_unregister(GLVaoCache *cache)
 void GLContext::memory_statistics_get(int *r_total_mem, int *r_free_mem)
 {
   /* TODO(merwin): use Apple's platform API to get this info. */
-  if (GLEW_NVX_gpu_memory_info) {
+  if (epoxy_has_gl_extension("GL_NVX_gpu_memory_info")) {
     /* Returned value in Kb. */
     glGetIntegerv(GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, r_total_mem);
     glGetIntegerv(GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, r_free_mem);
   }
-  else if (GLEW_ATI_meminfo) {
+  else if (epoxy_has_gl_extension("GL_ATI_meminfo")) {
     int stats[4];
     glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, stats);
 
diff --git a/source/blender/gpu/opengl/gl_context.hh b/source/blender/gpu/opengl/gl_context.hh
index 234bc712513..2f8c2b762f8 100644
--- a/source/blender/gpu/opengl/gl_context.hh
+++ b/source/blender/gpu/opengl/gl_context.hh
@@ -16,8 +16,6 @@
 
 #include "gl_state.hh"
 
-#include "glew-mx.h"
-
 #include <mutex>
 
 namespace blender {
diff --git a/source/blender/gpu/opengl/gl_debug.cc b/source/blender/gpu/opengl/gl_debug.cc
index 79b28642a67..4c9f766c93c 100644
--- a/source/blender/gpu/opengl/gl_debug.cc
+++ b/source/blender/gpu/opengl/gl_debug.cc
@@ -19,8 +19,6 @@
 
 #include "CLG_log.h"
 
-#include "glew-mx.h"
-
 #include "gl_context.hh"
 #include "gl_uniform_buffer.hh"
 
@@ -138,8 +136,8 @@ void init_gl_callbacks()
   char msg[256] = "";
   const char format[] = "Successfully hooked OpenGL debug callback using %s";
 
-  if (GLEW_VERSION_4_3 || GLEW_KHR_debug) {
-    SNPRINTF(msg, format, GLEW_VERSION_4_3 ? "OpenGL 4.3" : "KHR_debug extension");
+  if (epoxy_gl_version() >= 43 || epoxy_has_gl_extension("GL_KHR_debug")) {
+    SNPRINTF(msg, format, epoxy_gl_version() >= 43 ? "OpenGL 4.3" : "KHR_debug extension");
     glEnable(GL_DEBUG_OUTPUT);
     glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
     glDebugMessageCallback((GLDEBUGPROC)debug_callback, nullptr);
@@ -151,7 +149,7 @@ void init_gl_callbacks()
                          -1,
                          msg);
   }
-  else if (GLEW_ARB_debug_output) {
+  else if (epoxy_has_gl_extension("GL_ARB_debug_output")) {
     SNPRINTF(msg, format, "ARB_debug_output");
     glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
     glDebugMessageCallbackARB((GLDEBUGPROCARB)debug_callback, nullptr);
@@ -327,7 +325,8 @@ static const char *to_str_suffix(GLenum type)
 
 void object_label(GLenum type, GLuint object, const char *name)
 {
-  if ((G.debug & G_DEBUG_GPU) && (GLEW_VERSION_4_3 || GLEW_KHR_debug)) {
+  if ((G.debug & G_DEBUG_GPU) &&
+      (epoxy_gl_version() >= 43 || epoxy_has_gl_extension("GL_KHR_debug"))) {
     char label[64];
     SNPRINTF(label, "%s%s%s", to_str_prefix(type), name, to_str_suffix(type));
     /* Small convenience for caller. */
@@ -365,7 +364,8 @@ namespace blender::gpu {
 
 void GLContext::debug_group_begin(const char *name, int index)
 {
-  if ((G.debug & G_DEBUG_GPU) && (GLEW_VERSION_4_3 || GLEW_KHR_debug)) {
+  if ((G.debug & G_DEBUG_GPU) &&
+      (epoxy_gl_version() >= 43 || epoxy_has_gl_extension("GL_KHR_debug"))) {
     /* Add 10 to avoid collision with other indices from other possible callback layers. */
     index += 10;
     glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, index, -1, name);
@@ -374,7 +374,8 @@ void GLContext::debug_group_begin(const char *name, int index)
 
 void GLContext::debug_group_end()
 {
-  if ((G.debug & G_DEBUG_GPU) && (GLEW_VERSION_4_3 || GLEW_KHR_debug)) {
+  if ((G.debug & G_DEBUG_GPU) &&
+      (epoxy_gl_version() >= 43 || epoxy_has_gl_extension("GL_KHR_debug"))) {
     glPopDebugGroup();
   }
 }
diff --git a/source/blender/gpu/opengl/gl_debug.hh b/source/blender/gpu/opengl/gl_debug.hh
index e24b6f2bb23..b573196216d 100644
--- a/source/blender/gpu/opengl/gl_debug.hh
+++ b/source/blender/gpu/opengl/gl_debug.hh
@@ -8,8 +8,6 @@
 
 #include "gl_context.hh"
 
-#include "glew-mx.h"
-
 /* Manual line breaks for readability. */
 /* clang-format off */
 #define _VA_ARG_LIST1(t) t
diff --git a/source/blender/gpu/opengl/gl_framebuffer.hh b/source/blender/gpu/opengl/gl_framebuffer.hh
index 2dc0936d0fe..8ee04a584bd 100644
--- a/source/blender/gpu/opengl/gl_framebuffer.hh
+++ b/source/blender/gpu/opengl/gl_framebuffer.hh
@@ -11,8 +11,6 @@
 
 #include "MEM_guardedalloc.h"
 
-#include "glew-mx.h"
-
 #include "gpu_framebuffer_private.hh"
 
 namespace blender::gpu {
diff --git a/source/blender/gpu/opengl/gl_immediate.hh b/source/blender/gpu/opengl/gl_immediate.hh
index eb94dc20e21..5c6ff510cef 100644
--- a/source/blender/gpu/opengl/gl_immediate.hh
+++ b/source/blender/gpu/opengl/gl_immediate.hh
@@ -11,8 +11,6 @@
 
 #include "MEM_guardedalloc.h"
 
-#include "glew-mx.h"
-
 #include "gpu_immediate_private.hh"
 
 namespace blender::gpu {
diff --git a/source/blender/gpu/opengl/gl_index_buffer.hh b/source/blender/gpu/opengl/gl_index_buffer.hh
index 8a10884d48b..5a06e628315 100644
--- a/source/blender/gpu/opengl/gl_index_buffer.hh
+++ b/source/blender/gpu/opengl/gl_index_buffer.hh
@@ -11,7 +11,7 @@
 
 #include "gpu_index_buffer_private.hh"
 
-#include "glew-mx.h"
+#include <epoxy/gl.h>
 
 namespace blender::gpu {
 
diff --git a/source/blender/gpu/opengl/gl_primitive.hh b/source/blender/gpu/opengl/gl_primitive.hh
index 2a8590e8b3e..c4c7734a2cd 100644
--- a/source/blender/gpu/opengl/gl_primitive.hh
+++ b/source/blender/gpu/opengl/gl_primitive.hh
@@ -13,8 +13,6 @@
 
 #include "GPU_primitive.h"
 
-#include "glew-mx.h"
-
 namespace blender::gpu {
 
 static inline GLenum to_gl(GPUPrimType prim_type)
diff --git a/source/blender/gpu/opengl/gl_query.hh b/source/blender/gpu/opengl/gl_query.hh
index e15a2584e07..a851ab4ecdd 100644
--- a/source/blender/gpu/opengl/gl_query.hh
+++ b/source/blender/gpu/opengl/gl_query.hh
@@ -11,7 +11,7 @@
 
 #include "gpu_query.hh"
 
-#include "glew-mx.h"
+#include <epoxy/gl.h>
 
 namespace blender::gpu {
 
diff --git a/source/blender/gpu/opengl/gl_shader.cc b/source/blender/gpu/opengl/gl_shader.cc
index ccdf10c1ed2..a08019cc707 100644
--- a/source/blender/gpu/opengl/gl_shader.cc
+++ b/source/blender/gpu/opengl/gl_shader.cc
@@ -545,7 +545,7 @@ std::string GLShader::vertex_interface_declare(const ShaderCreateInfo &info) con
     if (!GLContext::native_barycentric_support) {
       /* Disabled or unsupported. */
     }
-    else if (GLEW_AMD_shader_explicit_vertex_parameter) {
+    else if (epoxy_has_gl_extension("GL_AMD_shader_explicit_vertex_parameter")) {
       /* Need this for stable barycentric. */
       ss << "flat out vec4 gpu_pos_flat;\n";
       ss << "out vec4 gpu_pos;\n";
@@ -581,7 +581,7 @@ std::string GLShader::fragment_interface_declare(const ShaderCreateInfo &info) c
       ss << "noperspective in vec3 gpu_BaryCoordNoPersp;\n";
       ss << "#define gpu_position_at_vertex(v) gpu_pos[v]\n";
     }
-    else if (GLEW_AMD_shader_explicit_vertex_parameter) {
+    else if (epoxy_has_gl_extension("GL_AMD_shader_explicit_vertex_parameter")) {
       std::cout << "native" << std::endl;
       /* NOTE(fclem): This won't work with geometry shader. Hopefully, we don't need geometry
        * shader workaround if this extension/feature is detected. */
@@ -612,7 +612,7 @@ std::string GLShader::fragment_interface_declare(const ShaderCreateInfo &info) c
   if (info.early_fragment_test_) {
     ss << "layout(early_fragment_tests) in;\n";
   }
-  if (GLEW_ARB_conservative_depth) {
+  if (epoxy_has_gl_extension("GL_ARB_conservative_depth")) {
     ss << "layout(" << to_string(info.depth_write_) << ") out float gl_FragDepth;\n";
   }
   ss << "\n/* Outputs. */\n";
@@ -805,7 +805,7 @@ static char *glsl_patch_default_get()
 
   size_t slen = 0;
   /* Version need to go first. */
-  if (GLEW_VERSION_4_3) {
+  if (epoxy_gl_version() >= 43) {
     STR_CONCAT(patch, slen, "#version 430\n");
   }
   else {
@@ -816,8 +816,8 @@ static char *glsl_patch_default_get()
    * don't use an extension for something already available! */
   if (GLContext::texture_gather_support) {
     STR_CONCAT(patch, slen, "#extension GL_ARB_texture_gather: enable\n");
-    /* Some drivers don't agree on GLEW_ARB_texture_gather and the actual support in the
-     * shader so double check the preprocessor define (see T56544). */
+    /* Some drivers don't agree on epoxy_has_gl_extension("GL_ARB_texture_gather") and the actual
+     * support in the shader so double check the preprocessor define (see T56544). */
     STR_CONCAT(patch, slen, "#ifdef GL_ARB_texture_gather\n");
     STR_CONCAT(patch, slen, "#  define GPU_ARB_texture_gather\n");
     STR_CONCAT(patch, slen, "#endif\n");
@@ -835,7 +835,7 @@ static char *glsl_patch_default_get()
     STR_CONCAT(patch, slen, "#extension GL_ARB_texture_cube_map_array : enable\n");
     STR_CONCAT(patch, slen, "#define GPU_ARB_texture_cube_map_array\n");
   }
-  if (GLEW_ARB_conservative_depth) {
+  if (epoxy_has_gl_extension("GL_ARB_conservative_depth")) {
     STR_CONCAT(patch, slen, "#extension GL_ARB_conservative_depth : enable\n");
   }
   if (GPU_shader_image_load_store_support()) {
diff --git a/source/blender/gpu/opengl/gl_shader.hh b/source/blender/gpu/opengl/gl_shader.hh
index 9c21d0c6230..2774b24cdbe 100644
--- a/source/blender/gpu/opengl/gl_shader.hh
+++ b/source/blender/gpu/opengl/gl_shader.hh
@@ -9,7 +9,7 @@
 
 #include "MEM_guardedalloc.h"
 
-#include "glew-mx.h"
+#include <epoxy/gl.h>
 
 #include "gpu_shader_create_info.hh"
 #include "gpu_shader_private.hh"
diff --git a/source/blender/gpu/opengl/gl_shader_interface.hh b/source/blender/gpu/opengl/gl_shader_interface.hh
index e3dce31758b..e31879d4340 100644
--- a/source/blender/gpu/opengl/gl_shader_interface.hh
+++ b/source/blender/gpu/opengl/gl_shader_interface.hh
@@ -16,8 +16,6 @@
 
 #include "BLI_vector.hh"
 
-#include "glew-mx.h"
-
 #include "gpu_shader_create_info.hh"
 #include "gpu_shader_interface.hh"
 
diff --git a/source/blender/gpu/opengl/gl_state.hh b/source/blender/gpu/opengl/gl_state.hh
index f29eefbca82..74c68e51755 100644
--- a/source/blender/gpu/opengl/gl_state.hh
+++ b/source/blender/gpu/opengl/gl_state.hh
@@ -13,7 +13,7 @@
 
 #include "gpu_state_private.hh"
 
-#include "glew-mx.h"
+#include <epoxy/gl.h>
 
 namespace blender {
 namespace gpu {
diff --git a/source/blender/gpu/opengl/gl_storage_buffer.hh b/source/blender/gpu/opengl/gl_storage_buffer.hh
index 96052fe0065..ffe2de12451 100644
--- a/source/blender/gpu/opengl/gl_storage_buffer.hh
+++ b/source/blender/gpu/opengl/gl_storage_buffer.hh
@@ -11,8 +11,6 @@
 
 #include "gpu_storage_buffer_private.hh"
 
-#include "glew-mx.h"
-
 namespace blender {
 namespace gpu {
 
diff --git a/source/blender/gpu/opengl/gl_texture.hh b/source/blender/gpu/opengl/gl_texture.hh
index 22c21d360c7..b7d72455c25 100644
--- a/source/blender/gpu/opengl/gl_texture.hh
+++ b/source/blender/gpu/opengl/gl_texture.hh
@@ -13,8 +13,6 @@
 
 #include "gpu_texture_private.hh"
 
-#include "glew-mx.h"
-
 struct GPUFrameBuffer;
 
 namespace blender {
diff --git a/source/blender/gpu/opengl/gl_uniform_buffer.hh b/source/blender/gpu/opengl/gl_uniform_buffer.hh
index 8d945a8e7dc..e602532dc5a 100644
--- a/source/blender/gpu/opengl/gl_uniform_buffer.hh
+++ b/source/blender/gpu/opengl/gl_uniform_buffer.hh
@@ -11,8 +11,6 @@
 
 #include "gpu_uniform_buffer_private.hh"
 
-#include "glew-mx.h"
-
 namespace blender {
 namespace gpu {
 
diff --git a/source/blender/gpu/opengl/gl_vertex_array.hh b/source/blender/gpu/opengl/gl_vertex_array.hh
index d1d6c5604b5..4f417beed29 100644
--- a/source/blender/gpu/opengl/gl_vertex_array.hh
+++ b/source/blender/gpu/opengl/gl_vertex_array.hh
@@ -7,8 +7,6 @@
 
 #pragma once
 
-#include "glew-mx.h"
-
 #include "GPU_batch.h"
 #include "gl_shader_interface.hh"
 
diff --git a/source/blender/gpu/opengl/gl_vertex_buffer.hh b/source/blender/gpu/opengl/gl_vertex_buffer.hh
index e0a21587b60..deb966961f2 100644
--- a/source/blender/gpu/opengl/gl_vertex_buffer.hh
+++ b/source/blender/gpu/opengl/gl_vertex_buffer.hh
@@ -9,8 +9,6 @@
 
 #include "MEM_guardedalloc.h"
 
-#include "glew-mx.h"
-
 #include "GPU_texture.h"
 
 #include "gpu_vertex_buffer_private.hh"