Merge pull request #26936 from akien-mga/gles2-revert-texture2DLodEXT

GLES2: Revert wrong extension checks from #26928 and #26932

drivers/gles2/shaders/canvas.glsl

 /* clang-format off */
 [vertex]
 
-#ifndef USE_GLES_OVER_GL
-#ifdef GL_EXT_shader_texture_lod
-#extension GL_EXT_shader_texture_lod : enable
-#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod)
-#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod)
-#endif
-#endif // !USE_GLES_OVER_GL
-
-#ifdef GL_ARB_shader_texture_lod
-#extension GL_ARB_shader_texture_lod : enable
-#endif
-
-#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod)
-#define texture2DLod(img, coord, lod) texture2D(img, coord, lod)
-#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod)
-#endif
-
 #ifdef USE_GLES_OVER_GL
 #define lowp
 #define mediump
@@ -237,6 +220,25 @@ VERTEX_SHADER_CODE
 /* clang-format off */
 [fragment]
 
+// texture2DLodEXT and textureCubeLodEXT are fragment shader specific.
+// Do not copy these defines in the [vertex] section.
+#ifndef USE_GLES_OVER_GL
+#ifdef GL_EXT_shader_texture_lod
+#extension GL_EXT_shader_texture_lod : enable
+#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod)
+#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod)
+#endif
+#endif // !USE_GLES_OVER_GL
+
+#ifdef GL_ARB_shader_texture_lod
+#extension GL_ARB_shader_texture_lod : enable
+#endif
+
+#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod)
+#define texture2DLod(img, coord, lod) texture2D(img, coord, lod)
+#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod)
+#endif
+
 #ifdef USE_GLES_OVER_GL
 #define lowp
 #define mediump

drivers/gles2/shaders/cubemap_filter.glsl

@@ -25,6 +25,8 @@ void main() {
 /* clang-format off */
 [fragment]
 
+// texture2DLodEXT and textureCubeLodEXT are fragment shader specific.
+// Do not copy these defines in the [vertex] section.
 #ifndef USE_GLES_OVER_GL
 #ifdef GL_EXT_shader_texture_lod
 #extension GL_EXT_shader_texture_lod : enable
@@ -54,7 +56,8 @@ precision highp int;
 precision mediump float;
 precision mediump int;
 #endif
-#endif // USE_GLES_OVER_GL
+
+#endif
 
 #ifdef USE_SOURCE_PANORAMA
 uniform sampler2D source_panorama; //texunit:0

drivers/gles2/shaders/scene.glsl

 /* clang-format off */
 [vertex]
 
-#ifndef USE_GLES_OVER_GL
-#ifdef GL_EXT_shader_texture_lod
-#extension GL_EXT_shader_texture_lod : enable
-#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod)
-#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod)
-#endif
-#endif // !USE_GLES_OVER_GL
-
-#ifdef GL_ARB_shader_texture_lod
-#extension GL_ARB_shader_texture_lod : enable
-#endif
-
-#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod)
-#define texture2DLod(img, coord, lod) texture2D(img, coord, lod)
-#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod)
-#endif
-
 #ifdef USE_GLES_OVER_GL
 #define lowp
 #define mediump
@@ -33,6 +16,7 @@ precision highp int;
 
 #define M_PI 3.14159265359
 
+
 //
 // attributes
 //
@@ -691,6 +675,8 @@ VERTEX_SHADER_CODE
 /* clang-format off */
 [fragment]
 
+// texture2DLodEXT and textureCubeLodEXT are fragment shader specific.
+// Do not copy these defines in the [vertex] section.
 #ifndef USE_GLES_OVER_GL
 #ifdef GL_EXT_shader_texture_lod
 #extension GL_EXT_shader_texture_lod : enable
@@ -720,7 +706,7 @@ precision highp int;
 precision mediump float;
 precision mediump int;
 #endif
-#endif // USE_GLES_OVER_GL
+#endif
 
 #include "stdlib.glsl"
 

drivers/gles2/shaders/stdlib.glsl

-// Our GLSL "stdlib"
-// texture2DLod defines *must* be done before including this,
-// but before any non-preprocessor statement.
 
 vec2 select2(vec2 a, vec2 b, bvec2 c) {
 	vec2 ret;