46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
#pragma once
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#include <cgv/render/context.h>
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#include <cgv/data/component_format.h>
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#include "lib_begin.h"
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namespace cgv {
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namespace render {
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/** this class encapsulate render buffers that live on the GPU
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which must support frame buffer objects for this to work. */
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class CGV_API render_buffer
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: public render_component,
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public cgv::data::component_format
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{
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int width, height;
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public:
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/// construct from description of component format, where the default format specifies a color buffer with alpha channel
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render_buffer(const std::string& description = "[R,G,B,A]");
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/// destruct the render buffer
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void destruct(context& ctx);
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/** create a render buffer.
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If no extent is specified it is copied from the current viewport. */
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void create(context& ctx, int width = -1, int height = -1);
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/// check whether the buffer has been created
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bool is_created() const;
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/// calls the destruct method if necessary
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~render_buffer();
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/// return the width in pixels of the buffer
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int get_width() const;
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/// return the height in pixels of the buffer
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int get_height() const;
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/// return whether the component format corresponds to a depth buffer format
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bool is_depth_buffer() const;
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/// return whether the component format corresponds to a color buffer format
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bool is_color_buffer() const;
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// bool is_stencil_buffer() const;
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};
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}
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}
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#include <cgv/config/lib_end.h>
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