[Shaders] Added the 'restrict' keyword to all images in compute shaders

- As per https://www.khronos.org/opengl/wiki/Image_Load_Store#Memory_qualifiers, this is something that should be done wherever possible

- Fixed the Z local size layout declaration in most compute shaders, which was incorrectly set for X
  - This was not an issue, as 1 is the default for all three components anyway

shaders/perlin_noise_1d.comp

@@ -1,6 +1,6 @@
-layout(local_size_x = 1, local_size_y = 1, local_size_x = 1) in;
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-layout(r16f, binding = 0) uniform writeonly image1D uniNoiseMap;
+layout(r16f, binding = 0) uniform writeonly restrict image1D uniNoiseMap;
 uniform float uniNoiseFactor = 0.01;
 uniform int uniOctaveCount   = 1;
 

shaders/perlin_noise_2d.comp

@@ -1,6 +1,6 @@
-layout(local_size_x = 1, local_size_y = 1, local_size_x = 1) in;
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-layout(r16f, binding = 0) uniform writeonly image2D uniNoiseMap;
+layout(r16f, binding = 0) uniform writeonly restrict image2D uniNoiseMap;
 uniform float uniNoiseFactor = 0.01;
 uniform int uniOctaveCount   = 1;
 

shaders/perlin_noise_3d.comp

@@ -1,6 +1,6 @@
-layout(local_size_x = 1, local_size_y = 1, local_size_x = 1) in;
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-layout(r16f, binding = 0) uniform writeonly image3D uniNoiseMap;
+layout(r16f, binding = 0) uniform writeonly restrict image3D uniNoiseMap;
 uniform float uniNoiseFactor = 0.01;
 uniform int uniOctaveCount   = 1;
 

shaders/worley_noise_2d.comp

@@ -1,6 +1,6 @@
-layout(local_size_x = 1, local_size_y = 1, local_size_x = 1) in;
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-layout(r16f, binding = 0) uniform writeonly image2D uniNoiseMap;
+layout(r16f, binding = 0) uniform writeonly restrict image2D uniNoiseMap;
 uniform float uniNoiseFactor = 0.01;
 
 const vec2 offsets[9] = vec2[](

shaders/worley_noise_3d.comp

@@ -1,6 +1,6 @@
-layout(local_size_x = 1, local_size_y = 1, local_size_x = 1) in;
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-layout(r16f, binding = 0) uniform writeonly image3D uniNoiseMap;
+layout(r16f, binding = 0) uniform writeonly restrict image3D uniNoiseMap;
 uniform float uniNoiseFactor = 0.01;
 
 const vec3 offsets[27] = vec3[](

tests/assets/shaders/basic.comp

@@ -1,9 +1,9 @@
-// Enabling the extension (if supported) on the shader's side is required if GL <4.3
+// Enabling the extension (if supported) on the shader's side is required for GL <4.3
 #extension GL_ARB_compute_shader : enable
 
 layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-layout(rgba32f, binding = 0) uniform writeonly image2D uniOutput;
+layout(rgba32f, binding = 0) uniform writeonly restrict image2D uniOutput;
 
 void main() {
   imageStore(uniOutput, ivec2(0), vec4(0.0));

tests/src/RaZ/Render/Shader.cpp

@@ -242,7 +242,7 @@ TEST_CASE("Compute shader from source") {
 
     layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
-    layout(rgba32f, binding = 0) uniform writeonly image2D uniOutput;
+    layout(rgba32f, binding = 0) uniform writeonly restrict image2D uniOutput;
 
     void main() {
       imageStore(uniOutput, ivec2(0), vec4(0.0));

tests/src/RaZ/Render/ShaderProgram.cpp

@@ -83,7 +83,7 @@ constexpr std::string_view compSource = R"(
   uniform int uniInt[2];
   uniform uint uniUint;
 
-  layout(rgba32f, binding = 0) uniform writeonly image2D uniImage2D;
+  layout(rgba32f, binding = 0) uniform writeonly restrict image2D uniImage2D;
 
   void main() {
     imageStore(uniImage2D, ivec2(uniInt[0] + uniInt[1], int(uniUint)), vec4(uniVec3, uniFloat[0] + uniFloat[1] + uniFloat[2]));