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FrameBuffer creation flags replace booleans

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Instead of many creation options (with alpha, with multisampling, etc) use a single flag with boolean operators. Creation of the new mipmap flag for FrameBuffer, rendering the current FBO into multiple sub-resolutions.
This commit is contained in:
Bruno Herbelin
2022-05-22 15:14:10 +02:00
parent 7867aac55f
commit d695aa9f57
15 changed files with 151 additions and 77 deletions
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23
FrameBuffer.h
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@@ -4,6 +4,7 @@
#include "RenderingManager.h"
#define FBI_JPEG_QUALITY 90
#define MIPMAP_LEVEL 6
/**
* @brief The FrameBufferImage class stores an RGB image in RAM
@@ -45,8 +46,17 @@ public:
static glm::vec3 getResolutionFromParameters(int ar, int h);
static glm::ivec2 getParametersFromResolution(glm::vec3 res);
FrameBuffer(glm::vec3 resolution, bool useAlpha = false, bool multiSampling = false);
FrameBuffer(uint width, uint height, bool useAlpha = false, bool multiSampling = false);
enum FrameBufferCreationFlags_
{
FrameBuffer_rgb = 0,
FrameBuffer_alpha = 1 << 1,
FrameBuffer_multisampling = 1 << 2,
FrameBuffer_mipmap = 1 << 3
};
typedef int FrameBufferFlags;
FrameBuffer(glm::vec3 resolution, FrameBufferFlags flags = FrameBuffer_rgb);
FrameBuffer(uint width, uint height, FrameBufferFlags flags = FrameBuffer_rgb);
FrameBuffer(FrameBuffer const&) = delete;
~FrameBuffer();
@@ -81,8 +91,7 @@ public:
// 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_; }
inline FrameBufferFlags flags() const { return flags_; }
// index for texturing
uint texture() const;
@@ -95,12 +104,12 @@ private:
void init();
void checkFramebufferStatus();
FrameBufferFlags flags_;
RenderingAttrib attrib_;
glm::mat4 projection_;
glm::vec2 projection_area_;
uint textureid_, intermediate_textureid_;
uint framebufferid_, intermediate_framebufferid_;
bool use_alpha_, use_multi_sampling_;
uint textureid_, multisampling_textureid_;
uint framebufferid_, multisampling_framebufferid_, mipmap_framebufferid_[MIPMAP_LEVEL] = {};
};