esUtil.h

@@ -139,7 +139,7 @@ void ESUTIL_API esInitContext ( ESContext *esContext );
 ///         ES_WINDOW_DEPTH   - specifies that a depth buffer should be created
 ///         ES_WINDOW_STENCIL - specifies that a stencil buffer should be created
 ///         ES_WINDOW_MULTISAMPLE - specifies that a multi-sample buffer should be created
-/// \return GL_TRUE if window creation is succesful, GL_FALSE otherwise
+/// \return GL_TRUE if window creation is successful, GL_FALSE otherwise
 GLboolean ESUTIL_API esCreateWindow ( ESContext *esContext, const char *title, GLint width, GLint height, GLuint flags );
 
 //
@@ -291,7 +291,7 @@ void ESUTIL_API esOrtho(ESMatrix *result, float left, float right, float bottom,
 void ESUTIL_API esMatrixMultiply(ESMatrix *result, ESMatrix *srcA, ESMatrix *srcB);
 
 //
-//// \brief return an indentity matrix 
+//// \brief return an identity matrix
 //// \param result returns identity matrix
 //
 void ESUTIL_API esMatrixLoadIdentity(ESMatrix *result);

meson.build

@@ -54,14 +54,15 @@ dep_libdrm = dependency('libdrm', version : '>=2.4.71')
 dep_gbm = dependency('gbm', version : '>=13.0')
 dep_egl = dependency('egl')
 dep_gles2 = dependency('glesv2')
-dep_gles3 = dependency('glesv2', version : '>= 3', required : false)
 
-if dep_gles3.found()
+with_gles3 = cc.check_header('GLES3/gl3.h', dependencies: dep_gles2)
+
+if with_gles3
   sources += files('cube-shadertoy.c')
   add_project_arguments('-DHAVE_GLES3', language : 'c')
   message('GLES3 supported; shadertoy & texturator are included in this build')
 else
-  message('GLES3 not supported; shadertoy & texturator are NOT included in this build')
+  warning('GLES3 not supported; shadertoy & texturator are NOT included in this build')
 endif
 
 dep_libpng = dependency('libpng', required : false)
@@ -103,7 +104,7 @@ endif
 
 executable('kmscube', sources, dependencies : dep_common, install : true)
 
-if dep_gles3.found()
+if with_gles3
   executable('texturator', files(
     'common.c',
     'drm-legacy.c',

texturator.c

@@ -67,7 +67,7 @@
  * Description of layout on screen from texelFetch:
  *
  * Draws a series of "rectangles" which display each miplevel and array slice,
- * at full size.  They are layed out as follows:
+ * at full size.  They are laid out as follows:
  *
  * miplevel 3 +          +          +          +          +
  *