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PShader.set(string, PImage) to bind textures to sampler uniforms

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This commit is contained in:
codeanticode
2012-08-08 21:53:42 +00:00
parent 3b89440974
commit 7cff2660c4
4 changed files with 138 additions and 17 deletions
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55
android/core/src/processing/opengl/PShader.java
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@@ -72,6 +72,10 @@ public class PShader {
protected HashMap<Integer, UniformValue> uniformValues = null;
protected HashMap<Integer, Texture> textures;
protected int firstTexUnit;
public PShader() {
parent = null;
pgMain = null;
@@ -87,8 +91,11 @@ public class PShader {
glVertex = 0;
glFragment = 0;
firstTexUnit = 0;
bound = false;
}
public PShader(PApplet parent) {
@@ -185,6 +192,7 @@ public class PShader {
pgl.glUseProgram(glProgram);
bound = true;
consumeUniforms();
bindTextures();
}
@@ -192,6 +200,7 @@ public class PShader {
* Unbinds the shader program.
*/
public void unbind() {
unbindTextures();
pgl.glUseProgram(0);
bound = false;
}
@@ -203,7 +212,7 @@ public class PShader {
public boolean bound() {
return bound;
}
public void set(String name, int x) {
setUniformImpl(name, UniformValue.INT1, new int[] { x });
@@ -317,11 +326,17 @@ public class PShader {
mat.m10, mat.m11, mat.m12, mat.m13,
mat.m20, mat.m21, mat.m22, mat.m23,
mat.m30, mat.m31, mat.m32, mat.m33 };
setUniformImpl(name, UniformValue.MAT4, matv);
setUniformImpl(name, UniformValue.MAT4, matv);
}
}
public void set(String name, PImage tex) {
setUniformImpl(name, UniformValue.SAMPLER2D, tex);
}
/**
* Returns the ID location of the attribute parameter given its name.
*
@@ -494,13 +509,14 @@ public class PShader {
}
uniformValues.put(loc, new UniformValue(type, value));
} else {
PGraphics.showWarning("The shader doesn't have the uniform " + name);
PGraphics.showWarning("The shader doesn't have a uniform called \"" + name + "\"");
}
}
protected void consumeUniforms() {
if (uniformValues != null && 0 < uniformValues.size()) {
int texUnit = firstTexUnit;
for (Integer loc: uniformValues.keySet()) {
UniformValue val = uniformValues.get(loc);
if (val.type == UniformValue.INT1) {
@@ -560,6 +576,15 @@ public class PShader {
} else if (val.type == UniformValue.MAT4) {
float[] v = ((float[])val.value);
pgl.glUniformMatrix4fv(loc, 1, false, v, 0);
} else if (val.type == UniformValue.SAMPLER2D) {
PImage img = (PImage)val.value;
Texture tex = pgMain.getTexture(img);
pgl.glUniform1i(loc, texUnit);
if (textures == null) {
textures = new HashMap<Integer, Texture>();
textures.put(texUnit, tex);
}
texUnit++;
}
}
uniformValues.clear();
@@ -567,6 +592,29 @@ public class PShader {
}
protected void bindTextures() {
if (textures != null) {
for (int unit: textures.keySet()) {
Texture tex = textures.get(unit);
pgl.glActiveTexture(PGL.GL_TEXTURE0 + unit);
tex.bind();
}
}
}
protected void unbindTextures() {
if (textures != null) {
for (int unit: textures.keySet()) {
Texture tex = textures.get(unit);
pgl.glActiveTexture(PGL.GL_TEXTURE0 + unit);
tex.unbind();
}
pgl.glActiveTexture(PGL.GL_TEXTURE0);
}
}
protected void init() {
if (glProgram == 0 || contextIsOutdated()) {
context = pgl.getCurrentContext();
@@ -783,6 +831,7 @@ public class PShader {
static final int MAT2 = 16;
static final int MAT3 = 17;
static final int MAT4 = 18;
static final int SAMPLER2D = 19;
int type;
Object value;