anonymous_namespace{main.cpp}::Texture Struct Reference

Public Member Functions
bool	empty () const
int	height () const
mxvk::MXCOLOR	sample (float u, float v) const
mxvk::MXCOLOR	sample (float u, float v) const
mxvk::MXCOLOR	sample (float u, float v, float level, bool repeat_horizontal) const
mxvk::MXCOLOR	sample_filtered (float u, float v, float lod) const
mxvk::MXCOLOR	sample_nearest (float u, float v) const
mxvk::MXCOLOR	sample_nearest (float u, float v) const
int	width () const

Public Attributes
int	height = 0
std::vector< MipLevel >	levels
std::vector< TextureLevel >	mipmaps
std::vector< mxvk::MXCOLOR >	pixels
int	width = 0

Detailed Description

Definition at line 85 of file main.cpp.

Member Function Documentation

empty()

bool anonymous_namespace{main.cpp}::Texture::empty ( ) const

inlinenodiscard

Definition at line 88 of file main.cpp.

{ return levels.empty() || levels.front().width <= 0 || levels.front().height <= 0 || levels.front().pixels.empty(); }

height()

int anonymous_namespace{main.cpp}::Texture::height ( ) const

inlinenodiscard

Definition at line 92 of file main.cpp.

{ return empty() ? 0 : levels.front().height; }

sample() [1/3]

mxvk::MXCOLOR anonymous_namespace{main.cpp}::Texture::sample ( float u, float v ) const

inlinenodiscard

Definition at line 45 of file main.cpp.

                                                                 {
            if (width <= 0 || height <= 0 || pixels.empty()) {
                return mxvk::MXVK_RGB(255, 255, 255);
            }
 
            u = std::clamp(u, 0.0f, 1.0f);
            v = std::clamp(v, 0.0f, 1.0f);
            const int x = std::clamp(static_cast<int>(u * static_cast<float>(width - 1) + 0.5f), 0, width - 1);
            const int y = std::clamp(static_cast<int>(v * static_cast<float>(height - 1) + 0.5f), 0, height - 1);
            return pixels[static_cast<std::size_t>(y * width + x)];
        }

sample() [2/3]

mxvk::MXCOLOR anonymous_namespace{main.cpp}::Texture::sample ( float u, float v ) const

inlinenodiscard

Definition at line 45 of file main.cpp.

                                                                 {
            if (width <= 0 || height <= 0 || pixels.empty()) {
                return mxvk::MXVK_RGB(255, 255, 255);
            }
 
            u = std::clamp(u, 0.0f, 1.0f);
            v = std::clamp(v, 0.0f, 1.0f);
            const int x = std::clamp(static_cast<int>(u * static_cast<float>(width - 1) + 0.5f), 0, width - 1);
            const int y = std::clamp(static_cast<int>(v * static_cast<float>(height - 1) + 0.5f), 0, height - 1);
            return pixels[static_cast<std::size_t>(y * width + x)];
        }

sample() [3/3]

mxvk::MXCOLOR anonymous_namespace{main.cpp}::Texture::sample ( float u, float v, float level, bool repeat_horizontal ) const

inlinenodiscard

Definition at line 94 of file main.cpp.

                                                                                                      {
            level = std::clamp(level, 0.0f, static_cast<float>(levels.size() - 1));
            const std::size_t first_level = static_cast<std::size_t>(std::floor(level));
            const std::size_t second_level = std::min(first_level + 1, levels.size() - 1);
            const float fraction = level - static_cast<float>(first_level);
            const mxvk::MXCOLOR first_color = levels[first_level].sample_bilinear(u, v, repeat_horizontal);
            if (first_level == second_level) {
                return first_color;
            }
            return interpolate_color(first_color, levels[second_level].sample_bilinear(u, v, repeat_horizontal), fraction);
        }

sample_filtered()

mxvk::MXCOLOR anonymous_namespace{main.cpp}::Texture::sample_filtered ( float u, float v, float lod ) const

inlinenodiscard

Definition at line 194 of file main.cpp.

                                                                                     {
            const float clamped_lod = std::clamp(lod, 0.0f, static_cast<float>(mipmaps.size()));
            const int first_level = static_cast<int>(std::floor(clamped_lod));
            const int second_level = std::min(first_level + 1, static_cast<int>(mipmaps.size()));
            const float blend = clamped_lod - static_cast<float>(first_level);
            const mxvk::MXCOLOR first = sample_bilinear(first_level, u, v);
            const mxvk::MXCOLOR second = sample_bilinear(second_level, u, v);
            return blend_color(first, second, blend);
        }

sample_nearest() [1/2]

mxvk::MXCOLOR anonymous_namespace{main.cpp}::Texture::sample_nearest ( float u, float v ) const

inlinenodiscard

Definition at line 57 of file main.cpp.

                                                                         {
            u = std::clamp(u, 0.0f, 1.0f);
            v = std::clamp(v, 0.0f, 1.0f);
            const int x = static_cast<int>(u * static_cast<float>(width - 1) + 0.5f);
            const int y = static_cast<int>(v * static_cast<float>(height - 1) + 0.5f);
            return pixels[static_cast<std::size_t>(y * width + x)];
        }

sample_nearest() [2/2]

mxvk::MXCOLOR anonymous_namespace{main.cpp}::Texture::sample_nearest ( float u, float v ) const

inlinenodiscard

Definition at line 57 of file main.cpp.

                                                                         {
            u = std::clamp(u, 0.0f, 1.0f);
            v = std::clamp(v, 0.0f, 1.0f);
            const int x = static_cast<int>(u * static_cast<float>(width - 1) + 0.5f);
            const int y = static_cast<int>(v * static_cast<float>(height - 1) + 0.5f);
            return pixels[static_cast<std::size_t>(y * width + x)];
        }

width()

int anonymous_namespace{main.cpp}::Texture::width ( ) const

inlinenodiscard

Definition at line 90 of file main.cpp.

{ return empty() ? 0 : levels.front().width; }

Member Data Documentation

height

int anonymous_namespace{main.cpp}::Texture::height = 0

Definition at line 190 of file main.cpp.

levels

std::vector<MipLevel> anonymous_namespace{main.cpp}::Texture::levels

Definition at line 86 of file main.cpp.

mipmaps

std::vector<TextureLevel> anonymous_namespace{main.cpp}::Texture::mipmaps

Definition at line 192 of file main.cpp.

pixels

std::vector< mxvk::MXCOLOR > anonymous_namespace{main.cpp}::Texture::pixels

Definition at line 191 of file main.cpp.

width

int anonymous_namespace{main.cpp}::Texture::width = 0

Definition at line 189 of file main.cpp.

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

• examples/3dmath_plg_loader/main.cpp
• examples/3dmath_puzzle_drop/main.cpp
• examples/3dmath_texture/main.cpp
• examples/3dmath_texture_array/main.cpp