[vulkan] Mark read-only buffers as such

Recent vulkan validation layers started complaining about vertex
processing stages having read-write buffers without atomics enabled
(fair enough), but I decided to get all the buffers that don't need to
be written.

libs/video/renderer/vulkan/shader/alias_shadow.vert

@@ -2,11 +2,11 @@
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_EXT_multiview : enable
 
-layout (set = 0, binding = 0) buffer ShadowView {
+layout (set = 0, binding = 0) readonly buffer ShadowView {
 	mat4x4      shadowView[];
 };
 
-layout (set = 0, binding = 1) buffer ShadowId {
+layout (set = 0, binding = 1) readonly buffer ShadowId {
 	uint        shadowId[];
 };
 

libs/video/renderer/vulkan/shader/bsp_depth.vert

@@ -8,7 +8,7 @@ layout (set = 0, binding = 0) uniform
 #include "matrices.h"
 ;
 
-layout (set = 1, binding = 0) buffer Entities {
+layout (set = 1, binding = 0) readonly buffer Entities {
 	Entity      entities[];
 };
 

libs/video/renderer/vulkan/shader/bsp_gbuf.vert

@@ -7,7 +7,7 @@ layout (set = 0, binding = 0) uniform
 #include "matrices.h"
 ;
 
-layout (set = 1, binding = 0) buffer Entities {
+layout (set = 1, binding = 0) readonly buffer Entities {
 	Entity      entities[];
 };
 

libs/video/renderer/vulkan/shader/bsp_shadow.vert

@@ -2,11 +2,11 @@
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_EXT_multiview : enable
 
-layout (set = 0, binding = 0) buffer ShadowView {
+layout (set = 0, binding = 0) readonly buffer ShadowView {
 	mat4x4      shadowView[];
 };
 
-layout (set = 0, binding = 1) buffer ShadowId {
+layout (set = 0, binding = 1) readonly buffer ShadowId {
 	uint        shadowId[];
 };
 
@@ -16,7 +16,7 @@ layout (push_constant) uniform PushConstants {
 
 #include "entity.h"
 
-layout (set = 1, binding = 0) buffer Entities {
+layout (set = 1, binding = 0) readonly buffer Entities {
 	Entity      entities[];
 };
 

libs/video/renderer/vulkan/shader/gridplane.frag

@@ -14,7 +14,7 @@ struct PlaneData {
 	vec4        tcolor;
 };
 
-layout (set = 1, binding = 0) buffer Planes {
+layout (set = 1, binding = 0) readonly buffer Planes {
 	int         numPlanes;
 	PlaneData   planes[];
 };

libs/video/renderer/vulkan/shader/iqm.vert

@@ -8,7 +8,7 @@ layout (set = 0, binding = 0) uniform
 #include "matrices.h"
 ;
 
-layout (set = 3, binding = 0) buffer Bones {
+layout (set = 3, binding = 0) readonly buffer Bones {
 	// NOTE these are transposed, so v * m
 	mat3x4      bones[];
 };

libs/video/renderer/vulkan/shader/iqm_shadow.vert

@@ -4,15 +4,15 @@
 
 layout (constant_id = 0) const bool IQMDepthOnly = false;
 
-layout (set = 0, binding = 0) buffer ShadowView {
+layout (set = 0, binding = 0) readonly buffer ShadowView {
 	mat4x4      shadowView[];
 };
 
-layout (set = 0, binding = 1) buffer ShadowId {
+layout (set = 0, binding = 1) readonly buffer ShadowId {
 	uint        shadowId[];
 };
 
-layout (set = 3, binding = 0) buffer Bones {
+layout (set = 3, binding = 0) readonly buffer Bones {
 	// NOTE these are transposed, so v * m
 	mat3x4      bones[];
 };

libs/video/renderer/vulkan/shader/lighting.h

@@ -15,22 +15,22 @@ struct LightRender {
 	uint        style;
 };
 
-layout (set = 0, binding = 0) buffer ShadowMatrices {
+layout (set = 0, binding = 0) readonly buffer ShadowMatrices {
 	mat4 shadow_mats[];
 };
-layout (set = 1, binding = 0) buffer LightIds {
+layout (set = 1, binding = 0) readonly buffer LightIds {
 	uint        lightIds[];
 };
-layout (set = 1, binding = 1) buffer Lights {
+layout (set = 1, binding = 1) readonly buffer Lights {
 	LightData   lights[];
 };
-layout (set = 1, binding = 2) buffer Renderer {
+layout (set = 1, binding = 2) readonly buffer Renderer {
 	LightRender renderer[];
 };
-layout (set = 1, binding = 3) buffer Style {
+layout (set = 1, binding = 3) readonly buffer Style {
 	vec4        style[];
 };
-layout (set = 1, binding = 4) buffer LightEntIds {
+layout (set = 1, binding = 4) readonly buffer LightEntIds {
 	uint        light_entids[];
 };
 

libs/video/renderer/vulkan/shader/quakebsp.vert

@@ -8,7 +8,7 @@ layout (set = 0, binding = 0) uniform
 #include "matrices.h"
 ;
 
-layout (set = 1, binding = 0) buffer Entities {
+layout (set = 1, binding = 0) readonly buffer Entities {
 	Entity      entities[];
 };