GPULegacyRenderCommandEncoderMetal.mm   [plain text]

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
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#import "config.h"
#import "GPULegacyRenderCommandEncoder.h"

#if ENABLE(WEBMETAL)

#import "GPULegacyBuffer.h"
#import "GPULegacyCommandBuffer.h"
#import "GPULegacyDepthStencilState.h"
#import "GPULegacyRenderPassDescriptor.h"
#import "GPULegacyRenderPipelineState.h"
#import "Logging.h"
#import <Metal/Metal.h>

namespace WebCore {

GPULegacyRenderCommandEncoder::GPULegacyRenderCommandEncoder(const GPULegacyCommandBuffer& buffer, const GPULegacyRenderPassDescriptor& descriptor)
{
    LOG(WebMetal, "GPULegacyRenderCommandEncoder::GPULegacyRenderCommandEncoder()");

    if (!descriptor.metal())
        return;

    m_metal = [buffer.metal() renderCommandEncoderWithDescriptor:descriptor.metal()];
}

void GPULegacyRenderCommandEncoder::setRenderPipelineState(const GPULegacyRenderPipelineState& renderPipelineState) const
{
    if (!renderPipelineState.metal())
        return;

    [m_metal setRenderPipelineState:renderPipelineState.metal()];
}

void GPULegacyRenderCommandEncoder::setDepthStencilState(const GPULegacyDepthStencilState& depthStencilState) const
{
    if (!depthStencilState.metal())
        return;

    [m_metal setDepthStencilState:depthStencilState.metal()];
}

void GPULegacyRenderCommandEncoder::setVertexBuffer(const GPULegacyBuffer& buffer, unsigned offset, unsigned index) const
{
    if (!buffer.metal())
        return;

    [m_metal setVertexBuffer:buffer.metal() offset:offset atIndex:index];
}

void GPULegacyRenderCommandEncoder::setFragmentBuffer(const GPULegacyBuffer& buffer, unsigned offset, unsigned index) const
{
    if (!buffer.metal())
        return;

    [m_metal setFragmentBuffer:buffer.metal() offset:offset atIndex:index];
}

void GPULegacyRenderCommandEncoder::drawPrimitives(unsigned type, unsigned start, unsigned count) const
{
    // FIXME: Why do we need a specially optimized path for count of 0?
    if (!count)
        return;

    [m_metal drawPrimitives:static_cast<MTLPrimitiveType>(type) vertexStart:start vertexCount:count];
}

void GPULegacyRenderCommandEncoder::endEncoding() const
{
    [m_metal endEncoding];
}

} // namespace WebCore

#endif