allow more than one shader

Author: M2-TE

CMakeLists.txt

@@ -95,11 +95,12 @@ endforeach(GLSL_FILE)
 # create a command to generate the source file that depends on the shader headers
 set(SPVRC_SRC "${CMAKE_CURRENT_BINARY_DIR}/spvrc.cpp")
 add_custom_command(
-    COMMAND ${CMAKE_COMMAND} 
-        -DSPVRC_SRC=${SPVRC_SRC} 
-        -DSPVRC_SPIRV_HEADERS=${SPVRC_SPIRV_HEADERS} 
-        -DSPVRC_SPIRV_FILES=${SPVRC_SPIRV_FILES} 
-        -DSPVRC_SPIRV_SYMBOLS=${SPVRC_SPIRV_SYMBOLS} 
+    COMMAND_EXPAND_LISTS
+    COMMAND ${CMAKE_COMMAND}
+        -DSPVRC_SRC=${SPVRC_SRC}
+        -DSPVRC_SPIRV_HEADERS="${SPVRC_SPIRV_HEADERS}"
+        -DSPVRC_SPIRV_FILES="${SPVRC_SPIRV_FILES}"
+        -DSPVRC_SPIRV_SYMBOLS="${SPVRC_SPIRV_SYMBOLS}"
         -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/generate_spvrc_source.cmake"
     DEPENDS ${SPVRC_SPIRV_HEADERS}
     OUTPUT ${SPVRC_SRC}

cmake/generate_spvrc_source.cmake

@@ -1,6 +1,11 @@
+string(REPLACE " " ";" SPVRC_SPIRV_HEADERS ${SPVRC_SPIRV_HEADERS})
+string(REPLACE " " ";" SPVRC_SPIRV_FILES ${SPVRC_SPIRV_FILES})
+string(REPLACE " " ";" SPVRC_SPIRV_SYMBOLS ${SPVRC_SPIRV_SYMBOLS})
+
 file(WRITE "${SPVRC_SRC}"
 "#include <string_view>
 #include <cstdint>
+#include <cassert>
 #include <vector>
 #include \"spvrc/spvrc.hpp\"
 ")
@@ -22,17 +27,17 @@ constexpr uint32_t hash(std::string_view data) noexcept {
 namespace spvrc {
     auto load(std::string_view path) -> std::vector<uint32_t> {
         std::vector<uint32_t> data;
-        switch (hash(path)) {
-")
+        switch (hash(path)) {"
+)
 # insert shader data
 foreach(SPIRV_FILE SPIRV_SYMBOL IN ZIP_LISTS SPVRC_SPIRV_FILES SPVRC_SPIRV_SYMBOLS)
-    file(APPEND "${SPVRC_SRC}"
-"            case hash(\"${SPIRV_FILE}\"): data = { ${SPIRV_SYMBOL}, ${SPIRV_SYMBOL} + std::size(${SPIRV_SYMBOL})}; break;\n"
+    file(APPEND "${SPVRC_SRC}" "
+            case hash(\"${SPIRV_FILE}\"): data = { ${SPIRV_SYMBOL}, ${SPIRV_SYMBOL} + std::size(${SPIRV_SYMBOL})}; break;"
     )
 endforeach(SPIRV_FILE SPIRV_SYMBOL)
 # end namespace
 file(APPEND "${SPVRC_SRC}" "
-            default: break;
+            default: assert(false && \"Shader not found\");
         }
         return data;
     }

shaders/shader2.comp

@@ -0,0 +1,17 @@
+#version 460
+
+layout(set = 0, binding = 0, rgba16f) uniform image2D image;
+layout(constant_id = 0) const uint image_size_x = 1280;
+layout(constant_id = 1) const uint image_size_y = 720;
+const uvec2 image_size = uvec2(image_size_x, image_size_y);
+
+layout (local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
+void main() {
+    uvec2 texelCoord = gl_GlobalInvocationID.xy;
+    vec4 color = vec4(0.0, 0.0, 0.0, 1.0);
+    if(gl_LocalInvocationID.x != 0 && gl_LocalInvocationID.y != 0) {
+        color.x = float(texelCoord.x)/float(image_size.x);
+        color.y = float(texelCoord.y)/float(image_size.y);	
+    }
+    imageStore(image, ivec2(texelCoord), color);
+}