private int createTexture(
final int width, final int height, final int textureFormat, final int textureType) {
final int[] textureIds = {0};
GLES20.glGenTextures(1, textureIds, 0);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureIds[0]);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
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.glTexImage2D(
GLES20.GL_TEXTURE_2D,
0,
textureFormat,
width,
height,
0,
textureFormat,
textureType,
(Buffer) null);
return textureIds[0];
}
private void renderDistortionMesh(final DistortionMesh mesh, final int textureId) {
ProgramHolder holder;
if (this.mChromaticAberrationCorrectionEnabled) {
holder = this.mProgramHolderAberration;
} else {
holder = this.mProgramHolder;
}
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, mesh.mArrayBufferId);
GLES20.glVertexAttribPointer(holder.aPosition, 2, GLES20.GL_FLOAT, false, 36, 0 * 4);
GLES20.glEnableVertexAttribArray(holder.aPosition);
GLES20.glVertexAttribPointer(holder.aVignette, 1, GLES20.GL_FLOAT, false, 36, 2 * 4);
GLES20.glEnableVertexAttribArray(holder.aVignette);
GLES20.glVertexAttribPointer(holder.aBlueTextureCoord, 2, GLES20.GL_FLOAT, false, 36, 7 * 4);
GLES20.glEnableVertexAttribArray(holder.aBlueTextureCoord);
if (this.mChromaticAberrationCorrectionEnabled) {
GLES20.glVertexAttribPointer(
((ProgramHolderAberration) holder).aRedTextureCoord,
2,
GLES20.GL_FLOAT,
false,
36,
3 * 4);
GLES20.glEnableVertexAttribArray(((ProgramHolderAberration) holder).aRedTextureCoord);
GLES20.glVertexAttribPointer(
((ProgramHolderAberration) holder).aGreenTextureCoord,
2,
GLES20.GL_FLOAT,
false,
36,
5 * 4);
GLES20.glEnableVertexAttribArray(((ProgramHolderAberration) holder).aGreenTextureCoord);
}
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureId);
GLES20.glUniform1i(this.mProgramHolder.uTextureSampler, 0);
GLES20.glUniform1f(this.mProgramHolder.uTextureCoordScale, this.mResolutionScale);
GLES20.glBindBuffer(GLES20.GL_ELEMENT_ARRAY_BUFFER, mesh.mElementBufferId);
GLES20.glDrawElements(GLES20.GL_TRIANGLE_STRIP, mesh.nIndices, GLES20.GL_UNSIGNED_SHORT, 0);
}
