Restrict vs_inst buffer to read-only usage in vertex shader

Author: halx99

axmol/CMakeLists.txt

@@ -93,7 +93,8 @@ if(_GLES_PROFILE)
   set(AX_GLES_PROFILE ${_GLES_PROFILE} CACHE STRING "")
 
   if(AX_GLES_PROFILE LESS 300)
-    message(FATAL_ERROR "${MACOSX} Invalid GLES profile ${AX_GLES_PROFILE}, must be 300 or later, default ${_GLES_PROFILE}")
+    set(AX_GLES_PROFILE ${_GLES_PROFILE} CACHE STRING "" FORCE)
+    message(AUTHOR_WARNING "Forcing GLES profile to ${_GLES_PROFILE} for OpenGL ES")
   endif()
 else() # force disable GLES profile
   set(AX_GLES_PROFILE 0 CACHE STRING "" FORCE)

axmol/renderer/shaders/unlit_instance.vert

@@ -12,7 +12,7 @@ layout(std140, binding = 0) uniform vs_ub {
 };
 
 #if defined(AXSLC_TARGET_MSL)
-layout(std140, binding = 1) buffer vs_inst {
+layout(std140, binding = 1) readonly buffer vs_inst {
     mat4 u_instance[];
 };
 #endif

tests/cpp-tests/Source/shaders/circle.vs

@@ -23,7 +23,7 @@ struct instance_data_st {
     vec2 pos;
     float radius;
 };
-layout(std140, binding = 1) buffer vs_inst {
+layout(std140, binding = 1) readonly buffer vs_inst {
     instance_data_st instances[];
 };
 #endif

tests/cpp-tests/Source/shaders/solid_capsule.vs

@@ -26,7 +26,7 @@ struct instance_data_st {
     float radius;
     float len;
 };
-layout(std140, binding = 1) buffer vs_inst {
+layout(std140, binding = 1) readonly buffer vs_inst {
     instance_data_st instances[];
 };
 #endif

tests/cpp-tests/Source/shaders/solid_circle.vs

@@ -24,7 +24,7 @@ struct instance_data_st {
     vec4 color;
     float radius;
 };
-layout(std140, binding = 1) buffer vs_inst {
+layout(std140, binding = 1) readonly buffer vs_inst {
     instance_data_st instances[];
 };
 #endif