libvgcode::ViewerImpl::TranslucentTargets Struct Reference

Collaboration diagram for libvgcode::ViewerImpl::TranslucentTargets:

Public Member Functions
bool	update (int width, int height)
void	release ()
size_t	size_in_bytes () const

Public Attributes
unsigned int	fbo { 0 }
unsigned int	accum_tex { 0 }
unsigned int	reveal_tex { 0 }
unsigned int	front_tex { 0 }
unsigned int	depth_tex { 0 }
unsigned int	front_depth_tex { 0 }
unsigned int	front_depth_fbo { 0 }
std::array< int, 2 >	size { 0, 0 }
bool	unsupported { false }

Detailed Description

Member Function Documentation

release()

void libvgcode::ViewerImpl::TranslucentTargets::release

(

)

{
    for (unsigned int* id : { &fbo, &front_depth_fbo }) {
        if (*id != 0) {
            glsafe(glDeleteFramebuffers(1, id));
            *id = 0;
        }
    }
    delete_textures(accum_tex);
    delete_textures(reveal_tex);
    delete_textures(front_tex);
    delete_textures(depth_tex);
    delete_textures(front_depth_tex);
    size = { 0, 0 };
}

References accum_tex, libvgcode::delete_textures(), depth_tex, fbo, front_depth_fbo, front_depth_tex, front_tex, glDeleteFramebuffers, glsafe, reveal_tex, and size.

Referenced by update().

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size_in_bytes()

size_t libvgcode::ViewerImpl::TranslucentTargets::size_in_bytes

(

)

const

{
    // RGBA16F, R16F, RGBA16F, a 24 bit depth and R32F
    return static_cast<size_t>(size[0]) * static_cast<size_t>(size[1]) * (8 + 2 + 8 + 4 + 4);
}

References size.

update()

bool libvgcode::ViewerImpl::TranslucentTargets::update	(	int	width,
		int	height )

{
    if (unsupported || width <= 0 || height <= 0)
        return false;
    if (fbo != 0 && size[0] == width && size[1] == height)
        return true;
 
    release();
    size = { width, height };
 
    int curr_texture = 0;
    int curr_draw_fbo = 0;
    int curr_read_fbo = 0;
    glsafe(glGetIntegerv(GL_TEXTURE_BINDING_2D, &curr_texture));
    glsafe(glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &curr_draw_fbo));
    glsafe(glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &curr_read_fbo));
 
    auto make_texture = [width, height](unsigned int& id, GLenum internal_format, GLenum format, GLenum type) {
        glsafe(glGenTextures(1, &id));
        glsafe(glBindTexture(GL_TEXTURE_2D, id));
        glsafe(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST));
        glsafe(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST));
        glsafe(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0));
        glsafe(glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, type, nullptr));
    };
    const GLenum buffers[3] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
 
    make_texture(depth_tex, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT);
    make_texture(accum_tex, GL_RGBA16F, GL_RGBA, GL_FLOAT);
    make_texture(reveal_tex, GL_R16F, GL_RED, GL_FLOAT);
    make_texture(front_tex, GL_RGBA16F, GL_RGBA, GL_FLOAT);
    make_texture(front_depth_tex, GL_R32F, GL_RED, GL_FLOAT);
    glsafe(glGenFramebuffers(1, &front_depth_fbo));
    glsafe(glBindFramebuffer(GL_FRAMEBUFFER, front_depth_fbo));
    glsafe(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, front_depth_tex, 0));
    glsafe(glDrawBuffers(1, buffers));
    bool complete = glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE;
    glsafe(glGenFramebuffers(1, &fbo));
    glsafe(glBindFramebuffer(GL_FRAMEBUFFER, fbo));
    glsafe(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, accum_tex, 0));
    glsafe(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, reveal_tex, 0));
    glsafe(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, front_tex, 0));
    glsafe(glDrawBuffers(3, buffers));
    complete = complete && glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE;
 
    glsafe(glBindTexture(GL_TEXTURE_2D, curr_texture));
    glsafe(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, curr_draw_fbo));
    glsafe(glBindFramebuffer(GL_READ_FRAMEBUFFER, curr_read_fbo));
 
    if (!complete) {
        release();
        unsupported = true;
    }
    return complete;
}

References accum_tex, depth_tex, fbo, front_depth_fbo, front_depth_tex, front_tex, GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT24, GL_DRAW_FRAMEBUFFER, GL_DRAW_FRAMEBUFFER_BINDING, GL_FLOAT, GL_FRAMEBUFFER, GL_FRAMEBUFFER_COMPLETE, GL_NEAREST, GL_R16F, GL_R32F, GL_READ_FRAMEBUFFER, GL_READ_FRAMEBUFFER_BINDING, GL_RED, GL_RGBA, GL_RGBA16F, GL_TEXTURE_2D, GL_TEXTURE_BINDING_2D, GL_TEXTURE_MAG_FILTER, GL_TEXTURE_MAX_LEVEL, GL_TEXTURE_MIN_FILTER, GL_UNSIGNED_INT, glBindFramebuffer, glBindTexture, glCheckFramebufferStatus, glDrawBuffers, glFramebufferTexture2D, glGenFramebuffers, glGenTextures, glGetIntegerv, glsafe, glTexImage2D, glTexParameteri, release(), reveal_tex, size, and unsupported.

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Member Data Documentation

accum_tex

unsigned int libvgcode::ViewerImpl::TranslucentTargets::accum_tex { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

depth_tex

unsigned int libvgcode::ViewerImpl::TranslucentTargets::depth_tex { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

fbo

unsigned int libvgcode::ViewerImpl::TranslucentTargets::fbo { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

front_depth_fbo

unsigned int libvgcode::ViewerImpl::TranslucentTargets::front_depth_fbo { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

front_depth_tex

unsigned int libvgcode::ViewerImpl::TranslucentTargets::front_depth_tex { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

front_tex

unsigned int libvgcode::ViewerImpl::TranslucentTargets::front_tex { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

reveal_tex

unsigned int libvgcode::ViewerImpl::TranslucentTargets::reveal_tex { 0 }

{ 0 };

Referenced by release(), libvgcode::ViewerImpl::render_translucent_segments(), and update().

size

std::array<int, 2> libvgcode::ViewerImpl::TranslucentTargets::size { 0, 0 }

{ 0, 0 };

Referenced by release(), size_in_bytes(), and update().

unsupported

bool libvgcode::ViewerImpl::TranslucentTargets::unsupported { false }

{ false };

Referenced by update().

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The documentation for this struct was generated from the following files:

• /home/runner/work/OrcaSlicer/OrcaSlicer/src/libvgcode/src/ViewerImpl.hpp
• /home/runner/work/OrcaSlicer/OrcaSlicer/src/libvgcode/src/ViewerImpl.cpp