Fixed KRDatablock::Append where the data was not expanded correctly to concatenate a std::String. Converted sprite shader. Adjusted Spirv compile logging.

kraken/KRDataBlock.cpp

@@ -329,7 +329,7 @@ void KRDataBlock::append(const std::string &s)
     append((void*)szText, text_length + 1);
   } else {
     // prev_size includes a null terminating character, don't need to add two.
-    expand(prev_size + text_length);
+    expand(text_length);
     lock();
     // Copy new string, overwriting prior null terminating character and
     // including new terminating character

kraken/KRShaderManager.cpp

@@ -288,8 +288,10 @@ bool KRShaderManager::compileAll(KRBundle* outputBundle, KRUnknown* logResource)
         program.addShader(&shader);
       } else {
         const char* log = shader.getInfoLog();
-        logResource->getData()->append(log);
-        logResource->getData()->append("\n");
+        if (log[0] != '\0') {
+          logResource->getData()->append(log);
+          logResource->getData()->append("\n");
+        }
         success = false;
       }
     };
@@ -299,8 +301,10 @@ bool KRShaderManager::compileAll(KRBundle* outputBundle, KRUnknown* logResource)
     
     if (!program.link(messages)) {
       const char* log = program.getInfoLog();
-      logResource->getData()->append(log);
-      logResource->getData()->append("\n");
+      if (log[0] != '\0') {
+        logResource->getData()->append(log);
+        logResource->getData()->append("\n");
+      }
       success = false;
     }
 
@@ -312,8 +316,11 @@ bool KRShaderManager::compileAll(KRBundle* outputBundle, KRUnknown* logResource)
           spv::SpvBuildLogger logger;
           glslang::SpvOptions spvOptions;
           glslang::GlslangToSpv(*program.getIntermediate((EShLanguage)stage), spirv, &logger, &spvOptions);
-          logResource->getData()->append(logger.getAllMessages().c_str());
-          logResource->getData()->append("\n");
+          std::string messages = logger.getAllMessages();
+          if (!messages.empty()) {
+            logResource->getData()->append(messages.c_str());
+            logResource->getData()->append("\n");
+          }
 
           std::string shader_name;
           switch (stage)

standard_assets/shaders/CMakeLists.txt

@@ -1,3 +1,5 @@
 set(KRAKEN_STANDARD_ASSETS "${KRAKEN_STANDARD_ASSETS}" PARENT_SCOPE)
 add_standard_asset(simple_blit.frag)
 add_standard_asset(simple_blit.vert)
+add_standard_asset(sprite.frag)
+add_standard_asset(sprite.vert)

standard_assets/shaders/simple_blit.frag

@@ -1,4 +1,4 @@
-//  Copyright 2019 Kearwood Gilbert. All rights reserved.
+//  Copyright 2020 Kearwood Gilbert. All rights reserved.
 //
 //  Redistribution and use in source and binary forms, with or without modification, are
 //  permitted provided that the following conditions are met:

standard_assets/shaders/simple_blit.vert

@@ -1,4 +1,4 @@
-//  Copyright 2019 Kearwood Gilbert. All rights reserved.
+//  Copyright 2020 Kearwood Gilbert. All rights reserved.
 //
 //  Redistribution and use in source and binary forms, with or without modification, are
 //  permitted provided that the following conditions are met:
@@ -30,13 +30,13 @@
 #extension GL_ARB_shading_language_420pack : enable
 
 layout (std140, binding = 0) uniform buf {
-        mat4 mvp_matrix; // mvp_matrix is the result of multiplying the model, view, and projection matrices 
+    mat4 mvp_matrix; // mvp_matrix is the result of multiplying the model, view, and projection matrices 
 } ubuf;
 layout (location = 0) in vec4 vertex_position;
 layout (location = 1) in vec2 vertex_uv;
 layout (location = 0) out vec2 textureCoordinate;
 
 void main() {
-   textureCoordinate = vertex_uv;
-   gl_Position = ubuf.mvp_matrix * vertex_position;
+    textureCoordinate = vertex_uv;
+    gl_Position = ubuf.mvp_matrix * vertex_position;
 }

standard_assets/shaders/sprite.frag

@@ -1,19 +1,15 @@
+//  Copyright 2020 Kearwood Gilbert. All rights reserved.
 //
-//  sprite.fsh
-//  KREngine
-//
-//  Copyright 2012 Kearwood Gilbert. All rights reserved.
-//  
 //  Redistribution and use in source and binary forms, with or without modification, are
 //  permitted provided that the following conditions are met:
-//  
+//
 //  1. Redistributions of source code must retain the above copyright notice, this list of
 //  conditions and the following disclaimer.
-//  
+//
 //  2. Redistributions in binary form must reproduce the above copyright notice, this list
 //  of conditions and the following disclaimer in the documentation and/or other materials
 //  provided with the distribution.
-//  
+//
 //  THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
 //  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 //  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
@@ -23,18 +19,27 @@
 //  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 //  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 //  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//  
+//
 //  The views and conclusions contained in the software and documentation are those of the
 //  authors and should not be interpreted as representing official policies, either expressed
 //  or implied, of Kearwood Gilbert.
 //
 
-out vec4 colorOut;
+#version 400
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (binding = 0) uniform MaterialObject
+{
+    float alpha;
+} material;
+layout (binding = 1) uniform sampler2D diffuseTexture;
+
+layout (location = 0) in vec2 textureCoordinate;
+layout (location = 0) out vec4 colorOut;
 
 in mediump vec2 texCoord;
-uniform sampler2D diffuseTexture;
-uniform lowp float material_alpha;
 
 void main() {
-    colorOut = vec4(vec3(texture(diffuseTexture, texCoord)), 1.0) * material_alpha;
-}
+    colorOut = vec4(vec3(texture(diffuseTexture, texCoord)), 1.0) * material.alpha;
+}

standard_assets/shaders/sprite.vert

@@ -1,19 +1,15 @@
+//  Copyright 2020 Kearwood Gilbert. All rights reserved.
 //
-//  sprite.vsh
-//  KREngine
-//
-//  Copyright 2012 Kearwood Gilbert. All rights reserved.
-//  
 //  Redistribution and use in source and binary forms, with or without modification, are
 //  permitted provided that the following conditions are met:
-//  
+//
 //  1. Redistributions of source code must retain the above copyright notice, this list of
 //  conditions and the following disclaimer.
-//  
+//
 //  2. Redistributions in binary form must reproduce the above copyright notice, this list
 //  of conditions and the following disclaimer in the documentation and/or other materials
 //  provided with the distribution.
-//  
+//
 //  THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
 //  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 //  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
@@ -23,19 +19,24 @@
 //  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 //  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 //  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//  
+//
 //  The views and conclusions contained in the software and documentation are those of the
 //  authors and should not be interpreted as representing official policies, either expressed
 //  or implied, of Kearwood Gilbert.
 //
 
-in mediump vec2	vertex_uv;
-uniform highp mat4      mvp_matrix; // mvp_matrix is the result of multiplying the model, view, and projection matrices
-uniform mediump vec4    viewport;
+#version 400
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
 
-out mediump vec2 texCoord;
+layout (std140, binding = 0) uniform buf {
+        mat4 mvp_matrix; // mvp_matrix is the result of multiplying the model, view, and projection matrices 
+        vec4 viewport;
+} ubuf;
+layout (location = 0) in vec2 vertex_uv;
+layout (location = 0) out vec2 textureCoordinate;
 
 void main() {
-    texCoord = vertex_uv;
-    gl_Position = mvp_matrix * vec4(vertex_uv.x * 2.0 - 1.0, vertex_uv.y * 2.0 - 1.0, 0.0, 1.0);
+    textureCoordinate = vertex_uv;
+    gl_Position = ubuf.mvp_matrix * vec4(vertex_uv.x * 2.0 - 1.0, vertex_uv.y * 2.0 - 1.0, 0.0, 1.0);
 }

tools/convert/main.cpp

@@ -169,7 +169,7 @@ int main( int argc, char *argv[] )
         printf("Failed to get shader compile log.  (Error %i)\n", result.result);
       } else {
         // result.data will be a null terminated string
-        if (result.data != nullptr && static_cast<char*>(result.data)[0] != '\0') {
+        if (result.data != nullptr && result.length > 0) {
           printf("Shader compile log:\n%s\n", static_cast<char *>(result.data));
         }
       }