Function writeVsUniforms

src/renderers/createAreaRenderer.ts:193–215

(ax: number, bx: number, ay: number, by: number, baseline: number)

  };

  const writeVsUniforms = (ax: number, bx: number, ay: number, by: number, baseline: number): void => {
    // VSUniforms:
    // - mat4x4<f32> (64 bytes)
    // - baseline: f32 (4 bytes)
    // - (implicit padding to next 16B boundary) (12 bytes)
    // - _pad0: vec3<f32> (occupies 16 bytes in a uniform buffer)
    // Total: 96 bytes.
    //
    // Layout details (uniform address space):
    // - transform at byte offset 0
    // - baseline at byte offset 64 (f32[16])
    // - _pad0 at byte offset 80 (f32[20..22]) with trailing 4B padding
    writeTransformMat4F32(vsUniformScratchF32, ax, bx, ay, by);
    vsUniformScratchF32[16] = baseline;
    vsUniformScratchF32[17] = 0;
    vsUniformScratchF32[18] = 0;
    vsUniformScratchF32[19] = 0;
    vsUniformScratchF32[20] = 0;
    vsUniformScratchF32[21] = 0;
    vsUniformScratchF32[22] = 0;
    vsUniformScratchF32[23] = 0;
    writeUniformBuffer(device, vsUniformBuffer, vsUniformScratchBuffer);
  };

  const prepare: AreaRenderer['prepare'] = (seriesConfig, data, xScale, yScale, baseline) => {
    assertNotDisposed();