mirror of
https://github.com/brunoherbelin/vimix.git
synced 2025-12-12 18:59:59 +01:00
48b1bfaebd
Improved warning when allocating FrameBuffer. Avoid allocating FrameBuffer when buffering delay in Clone Source if we risk to consume all RAM in graphics card.
112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
#ifndef FRAMEBUFFER_H
|
|
#define FRAMEBUFFER_H
|
|
|
|
#include "RenderingManager.h"
|
|
|
|
#define FBI_JPEG_QUALITY 90
|
|
|
|
/**
|
|
* @brief The FrameBufferImage class stores an RGB image in RAM
|
|
* Direct access to rgb array, and exchange format to JPEG in RAM
|
|
*/
|
|
class FrameBufferImage
|
|
{
|
|
public:
|
|
uint8_t *rgb;
|
|
int width;
|
|
int height;
|
|
|
|
struct jpegBuffer {
|
|
unsigned char *buffer = nullptr;
|
|
uint len = 0;
|
|
};
|
|
jpegBuffer getJpeg() const;
|
|
|
|
FrameBufferImage(int w, int h);
|
|
FrameBufferImage(jpegBuffer jpgimg);
|
|
FrameBufferImage(const std::string &filename);
|
|
// non assignable class
|
|
FrameBufferImage(FrameBufferImage const&) = delete;
|
|
FrameBufferImage& operator=(FrameBufferImage const&) = delete;
|
|
~FrameBufferImage();
|
|
};
|
|
|
|
/**
|
|
* @brief The FrameBuffer class holds an OpenGL Frame Buffer Object.
|
|
*/
|
|
class FrameBuffer {
|
|
|
|
public:
|
|
// size descriptions
|
|
static const char* aspect_ratio_name[5];
|
|
static glm::vec2 aspect_ratio_size[5];
|
|
static const char* resolution_name[5];
|
|
static float resolution_height[5];
|
|
static glm::vec3 getResolutionFromParameters(int ar, int h);
|
|
static glm::ivec2 getParametersFromResolution(glm::vec3 res);
|
|
// memory management
|
|
static glm::ivec2 getGPUMemoryInformation();
|
|
static bool shouldHaveEnoughMemory(glm::vec3 resolution, bool useAlpha = false, bool multiSampling = false);
|
|
|
|
FrameBuffer(glm::vec3 resolution, bool useAlpha = false, bool multiSampling = false);
|
|
FrameBuffer(uint width, uint height, bool useAlpha = false, bool multiSampling = false);
|
|
FrameBuffer(FrameBuffer const&) = delete;
|
|
~FrameBuffer();
|
|
|
|
// Bind & push attribs to prepare draw
|
|
void begin(bool clear = true);
|
|
// pop attrib and unbind to end draw
|
|
void end();
|
|
// unbind (any) framebuffer object
|
|
static void release();
|
|
// blit copy to another, returns true on success
|
|
bool blit(FrameBuffer *destination);
|
|
// bind the FrameBuffer in READ and perform glReadPixels
|
|
// (to be used after preparing a target PBO)
|
|
void readPixels(uint8_t* target_data = 0);
|
|
|
|
// clear color
|
|
inline void setClearColor(glm::vec4 color) { attrib_.clear_color = color; }
|
|
inline glm::vec4 clearColor() const { return attrib_.clear_color; }
|
|
|
|
// width & height
|
|
inline uint width() const { return attrib_.viewport.x; }
|
|
inline uint height() const { return attrib_.viewport.y; }
|
|
glm::vec3 resolution() const;
|
|
void resize(int width, int height);
|
|
float aspectRatio() const;
|
|
std::string info() const;
|
|
|
|
// projection area (crop)
|
|
glm::mat4 projection() const;
|
|
glm::vec2 projectionArea() const;
|
|
void setProjectionArea(glm::vec2 c);
|
|
|
|
// internal pixel format
|
|
inline uint opengl_id() const { return framebufferid_; }
|
|
inline bool use_alpha() const { return use_alpha_; }
|
|
inline bool use_multisampling() const { return use_multi_sampling_; }
|
|
|
|
// index for texturing
|
|
uint texture() const;
|
|
|
|
// get and fill image
|
|
FrameBufferImage *image();
|
|
bool fill(FrameBufferImage *image);
|
|
|
|
private:
|
|
void init();
|
|
void checkFramebufferStatus();
|
|
|
|
RenderingAttrib attrib_;
|
|
glm::mat4 projection_;
|
|
glm::vec2 projection_area_;
|
|
uint textureid_, intermediate_textureid_;
|
|
uint framebufferid_, intermediate_framebufferid_;
|
|
bool use_alpha_, use_multi_sampling_;
|
|
};
|
|
|
|
|
|
|
|
#endif // FRAMEBUFFER_H
|