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Clarify GlProgram parameter name.

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PiperOrigin-RevId: 434441008
This commit is contained in:
hschlueter 2022-03-14 12:52:16 +00:00 committed by Ian Baker
parent fb88a4fbe7
commit 682a5ca77b
4 changed files with 20 additions and 13 deletions
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4
demos/gl/src/main/java/androidx/media3/demo/gl/BitmapOverlayVideoProcessor.java
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@ -119,8 +119,8 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
// Run the shader program.
GlProgram program = checkNotNull(this.program);
program.setSamplerTexIdUniform("uTexSampler0", frameTexture, /* unit= */ 0);
program.setSamplerTexIdUniform("uTexSampler1", textures[0], /* unit= */ 1);
program.setSamplerTexIdUniform("uTexSampler0", frameTexture, /* texUnitIndex= */ 0);
program.setSamplerTexIdUniform("uTexSampler1", textures[0], /* texUnitIndex= */ 1);
program.setFloatUniform("uScaleX", bitmapScaleX);
program.setFloatUniform("uScaleY", bitmapScaleY);
program.setFloatsUniform("uTexTransform", transformMatrix);

25
libraries/common/src/main/java/androidx/media3/common/util/GlProgram.java
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@ -175,9 +175,16 @@ public final class GlProgram {
checkNotNull(attributeByName.get(name)).setBuffer(values, size);
}
/** Sets a texture sampler type uniform. */
public void setSamplerTexIdUniform(String name, int texId, int unit) {
checkNotNull(uniformByName.get(name)).setSamplerTexId(texId, unit);
/**
* Sets a texture sampler type uniform.
*
* @param name The uniform's name.
* @param texId The texture identifier.
* @param texUnitIndex The texture unit index. Use a different index (0, 1, 2, ...) for each
* texture sampler in the program.
*/
public void setSamplerTexIdUniform(String name, int texId, int texUnitIndex) {
checkNotNull(uniformByName.get(name)).setSamplerTexId(texId, texUnitIndex);
}
/** Sets a float type uniform. */
@ -322,7 +329,7 @@ public final class GlProgram {
private final float[] value;
private int texId;
private int unit;
private int texUnitIndex;
private Uniform(String name, int location, int type) {
this.name = name;
@ -335,11 +342,11 @@ public final class GlProgram {
* Configures {@link #bind()} to use the specified {@code texId} for this sampler uniform.
*
* @param texId The GL texture identifier from which to sample.
* @param unit The GL texture unit index.
* @param texUnitIndex The GL texture unit index.
*/
public void setSamplerTexId(int texId, int unit) {
public void setSamplerTexId(int texId, int texUnitIndex) {
this.texId = texId;
this.unit = unit;
this.texUnitIndex = texUnitIndex;
}
/** Configures {@link #bind()} to use the specified float {@code value} for this uniform. */
@ -382,7 +389,7 @@ public final class GlProgram {
if (texId == 0) {
throw new IllegalStateException("No call to setSamplerTexId() before bind.");
}
GLES20.glActiveTexture(GLES20.GL_TEXTURE0 + unit);
GLES20.glActiveTexture(GLES20.GL_TEXTURE0 + texUnitIndex);
if (type == GLES11Ext.GL_SAMPLER_EXTERNAL_OES || type == GL_SAMPLER_EXTERNAL_2D_Y2Y_EXT) {
GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, texId);
} else if (type == GLES20.GL_SAMPLER_2D) {
@ -390,7 +397,7 @@ public final class GlProgram {
} else {
throw new IllegalStateException("Unexpected uniform type: " + type);
}
GLES20.glUniform1i(location, unit);
GLES20.glUniform1i(location, texUnitIndex);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameteri(

2
libraries/transformer/src/main/java/androidx/media3/transformer/ExternalCopyFrameProcessor.java
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@ -70,7 +70,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
? FRAGMENT_SHADER_COPY_EXTERNAL_YUV_ES3_PATH
: FRAGMENT_SHADER_COPY_EXTERNAL_PATH;
glProgram = new GlProgram(context, vertexShaderFilePath, fragmentShaderFilePath);
glProgram.setSamplerTexIdUniform("uTexSampler", inputTexId, /* unit= */ 0);
glProgram.setSamplerTexIdUniform("uTexSampler", inputTexId, /* texUnitIndex= */ 0);
// Draw the frame on the entire normalized device coordinate space, from -1 to 1, for x and y.
glProgram.setBufferAttribute(
"aFramePosition", GlUtil.getNormalizedCoordinateBounds(), GlUtil.RECTANGLE_VERTICES_COUNT);

2
libraries/transformer/src/main/java/androidx/media3/transformer/TransformationFrameProcessor.java
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@ -97,7 +97,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
// TODO(b/205002913): check the loaded program is consistent with the attributes and uniforms
// expected in the code.
glProgram = new GlProgram(context, VERTEX_SHADER_TRANSFORMATION_PATH, FRAGMENT_SHADER_PATH);
glProgram.setSamplerTexIdUniform("uTexSampler", inputTexId, /* unit= */ 0);
glProgram.setSamplerTexIdUniform("uTexSampler", inputTexId, /* texUnitIndex= */ 0);
// Draw the frame on the entire normalized device coordinate space, from -1 to 1, for x and y.
glProgram.setBufferAttribute(
"aFramePosition", GlUtil.getNormalizedCoordinateBounds(), GlUtil.RECTANGLE_VERTICES_COUNT);