8a81444c43
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Bart Louwers <bart@emeel.net> Co-authored-by: Bart Louwers <bart.louwers@gmail.com>
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
#pragma once
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#include <mbgl/gfx/texture2d.hpp>
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#include <mbgl/platform/gl_functions.hpp>
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#include <mbgl/util/image.hpp>
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#include <memory>
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namespace mbgl {
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namespace gl {
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class Context;
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class Texture2D : public gfx::Texture2D {
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public:
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Texture2D(gl::Context& context_);
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~Texture2D() override;
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public: // gfx::Texture2D
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Texture2D& setSamplerConfiguration(const SamplerState& samplerState) noexcept override;
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Texture2D& setFormat(gfx::TexturePixelType pixelFormat, gfx::TextureChannelDataType channelType) noexcept override;
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Texture2D& setSize(Size size_) noexcept override;
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Texture2D& setImage(std::shared_ptr<PremultipliedImage> image_) noexcept override;
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gfx::TexturePixelType getFormat() const noexcept override { return pixelFormat; }
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Size getSize() const noexcept override { return size; }
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size_t getDataSize() const noexcept override;
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size_t getPixelStride() const noexcept override;
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size_t numChannels() const noexcept override;
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void create() noexcept override;
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void upload(const void* pixelData, const Size& size_) noexcept override;
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void uploadSubRegion(const void* pixelData, const Size& size, uint16_t xOffset, uint16_t yOffset) noexcept override;
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void upload() noexcept override;
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bool needsUpload() const noexcept override { return !!image; };
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public:
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/// @brief Get the OpenGL handle ID for the underlying resource
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/// @return GLuint
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platform::GLuint getTextureID() const noexcept;
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void updateSamplerConfiguration() noexcept;
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/// @brief Bind this texture to the specified texture unit
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/// @param location Location index of texture sampler in a shader
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/// @param textureUnit Unit to bind to. A maximum of gl::MaxActiveTextureUnits
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/// texture units are available for binding.
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void bind(int32_t location, int32_t textureUnit) noexcept;
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/// @brief Unbind the texture, if it was bound
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void unbind() noexcept;
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private:
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void allocateTexture() noexcept;
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void updateTextureData(const void* data = nullptr) noexcept;
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private:
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gl::Context& context;
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std::unique_ptr<gfx::TextureResource> textureResource{nullptr};
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SamplerState samplerState{};
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gfx::TexturePixelType pixelFormat{gfx::TexturePixelType::RGBA};
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gfx::TextureChannelDataType channelType{gfx::TextureChannelDataType::UnsignedByte};
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std::shared_ptr<PremultipliedImage> image{nullptr};
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Size size{0, 0};
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bool samplerStateDirty{false};
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bool storageDirty{false};
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int32_t boundTextureUnit{-1};
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int32_t boundLocation{-1};
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};
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} // namespace gl
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} // namespace mbgl
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