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Detect GLSL version and preprocess to that

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This commit is contained in:
Jakub Valtar
2015-08-15 11:03:12 -04:00
parent b2902f4316
commit cb83147d74
3 changed files with 43 additions and 39 deletions
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38
core/src/processing/opengl/PGL.java
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@@ -1668,7 +1668,16 @@ public abstract class PGL {
protected static String[] preprocessFragmentSource(String[] fragSrc0,
int version) {
if (version >= 130) {
String[] fragSrc;
if (version < 130) {
String[] search = { };
String[] replace = { };
int offset = 1;
fragSrc = preprocessShaderSource(fragSrc0, search, replace, offset);
fragSrc[0] = "#version " + version;
} else {
// We need to replace 'texture' uniform by 'texMap' uniform and
// 'textureXXX()' functions by 'texture()' functions. Order of these
// replacements is important to prevent collisions between these two.
@@ -1684,19 +1693,28 @@ public abstract class PGL {
"texture", "texture", "texture", "texture",
"fragColor"
};
int offset = 2;
String[] fragSrc = preprocessShaderSource(fragSrc0, search, replace, 2);
fragSrc = preprocessShaderSource(fragSrc0, search, replace, offset);
fragSrc[0] = "#version " + version;
fragSrc[1] = "out vec4 fragColor;";
return fragSrc;
}
return fragSrc0;
return fragSrc;
}
protected static String[] preprocessVertexSource(String[] vertSrc0,
int version) {
if (version >= 130) {
String[] vertSrc;
if (version < 130) {
String[] search = { };
String[] replace = { };
int offset = 1;
vertSrc = preprocessShaderSource(vertSrc0, search, replace, offset);
vertSrc[0] = "#version " + version;
} else {
// We need to replace 'texture' uniform by 'texMap' uniform and
// 'textureXXX()' functions by 'texture()' functions. Order of these
// replacements is important to prevent collisions between these two.
@@ -1710,13 +1728,13 @@ public abstract class PGL {
"texMap",
"texture", "texture", "texture", "texture"
};
int offset = 1;
String[] vertSrc = preprocessShaderSource(vertSrc0, search, replace, 1);
vertSrc = preprocessShaderSource(vertSrc0, search, replace, offset);
vertSrc[0] = "#version " + version;
return vertSrc;
}
return vertSrc0;
return vertSrc;
}
protected static String[] preprocessShaderSource(String[] src0,