loliball/media3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Clarify GL texture creation

Browse Source 
PiperOrigin-RevId: 580176027
This commit is contained in:
claincly 2023-11-07 07:40:21 -08:00 committed by Copybara-Service
parent a7d47d4526
commit 8d1663a57f
1 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
libraries/common/src/main/java/androidx/media3/common/util/GlUtil.java
View File

@ -573,6 +573,10 @@ public final class GlUtil {
/**
* Allocates a new RGBA texture with the specified dimensions and color component precision.
*
* <p>The created texture is not zero-initialized. To clear the texture, {@linkplain
* #focusFramebuffer(EGLDisplay, EGLContext, EGLSurface, int, int, int) focus} on the texture and
* {@linkplain #clearFocusedBuffers() clear} its content.
*
* @param width The width of the new texture in pixels.
* @param height The height of the new texture in pixels.
* @param useHighPrecisionColorComponents If {@code false}, uses colors with 8-bit unsigned bytes.
@ -583,11 +587,12 @@ public final class GlUtil {
public static int createTexture(int width, int height, boolean useHighPrecisionColorComponents)
throws GlException {
// TODO(b/227624622): Implement a pixel test that confirms 16f has less posterization.
// TODO - b/309459038: Consider renaming the method, as the created textures are uninitialized.
if (useHighPrecisionColorComponents) {
checkState(Util.SDK_INT >= 18, "GLES30 extensions are not supported below API 18.");
return createTexture(width, height, GLES30.GL_RGBA16F, GLES30.GL_HALF_FLOAT);
return createTextureUninitialized(width, height, GLES30.GL_RGBA16F, GLES30.GL_HALF_FLOAT);
}
return createTexture(width, height, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE);
return createTextureUninitialized(width, height, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE);
}
/**
@ -611,10 +616,6 @@ public final class GlUtil {
/**
* Allocates a new RGBA texture with the specified dimensions and color component precision.
*
* <p>The created texture is not zero-initialized. To clear the texture, {@linkplain
* #focusFramebuffer(EGLDisplay, EGLContext, EGLSurface, int, int, int) focus} on the texture and
* {@linkplain #clearFocusedBuffers() clear} its content.
*
* @param width The width of the new texture in pixels.
* @param height The height of the new texture in pixels.
* @param internalFormat The number of color components in the texture, as well as their format.
@ -622,7 +623,7 @@ public final class GlUtil {
* @throws GlException If the texture allocation fails.
* @return The texture identifier for the newly-allocated texture.
*/
private static int createTexture(int width, int height, int internalFormat, int type)
private static int createTextureUninitialized(int width, int height, int internalFormat, int type)
throws GlException {
assertValidTextureSize(width, height);
int texId = generateTexture();