lv_gltf_data_internal.h¶

Functions

lv_gltf_uniform_locations_t lv_gltf_uniform_locations_create(GLuint program)¶

void lv_gltf_store_compiled_shader(lv_gltf_model_t *data, size_t identifier, lv_gltf_compiled_shader_t *shader)¶

lv_gltf_compiled_shader_t *lv_gltf_get_compiled_shader(lv_gltf_model_t *data, size_t identifier)¶

lv_gltf_model_t *lv_gltf_data_load_from_file(const char *file_path, lv_opengl_shader_manager_t *shader_manager)¶

Load the gltf file at the specified filepath.

Parameters:

gltf_path – The gltf filename
ret_data – Pointer to the data container that will be populated.
shaders – Pointer to the shader cache object this file uses.

lv_gltf_model_t *lv_gltf_data_load_from_bytes(const uint8_t *data, size_t data_size, lv_opengl_shader_manager_t *shader_manager)¶

Load the gltf file encoded within the supplied byte array.

Parameters:

gltf_path – The gltf filename
gltf_data_size – if gltf_path is instead a byte array, pass the size of that array in through this variable (or 0 if it's a file path).
ret_data – Pointer to the data container that will be populated.
shaders – Pointer to the shader cache object this file uses.

double lv_gltf_data_get_radius(lv_gltf_model_t *D)¶

Retrieve the radius of the GLTF data object.

Parameters:: D – Pointer to the lv_gltf_data_t object from which to get the radius.
Returns:: The radius of the GLTF data object.

void lv_gltf_data_destroy(lv_gltf_model_t *_data)¶

Destroy a GLTF data object and free associated resources.

Parameters:: _data – Pointer to the lv_gltf_data_t object to be destroyed.

void lv_gltf_data_copy_bounds_info(lv_gltf_model_t *to, lv_gltf_model_t *from)¶

Copy the bounds information from one GLTF data object to another.

Parameters:

to – Pointer to the destination lv_gltf_data_t object.
from – Pointer to the source lv_gltf_data_t object.

bool lv_gltf_data_get_texture_info(lv_gltf_model_t *data_obj, uint32_t model_texture_index, uint32_t mipmapnum, size_t *byte_count, uint32_t *width, uint32_t *height, bool *has_alpha)¶

Retrieve information about a specific texture in a GLTF model.

Parameters:

data_obj – Pointer to the lv_gltf_data_t object containing the model data.
model_texture_index – The index of the texture in the model.
mipmapnum – The mipmap level to retrieve information for.
byte_count – Pointer to a size_t variable to store the byte count of the texture.
width – Pointer to a uint32_t variable to store the width of the texture.
height – Pointer to a uint32_t variable to store the height of the texture.
has_alpha – Pointer to a bool variable to indicate if the texture has an alpha channel.

Returns:

True if the texture information was successfully retrieved, false otherwise.

void lv_gltf_data_rgb_to_bgr(uint8_t *pixel_buffer, size_t byte_total_count, bool has_alpha)¶

Swap the red and blue channels in a pixel buffer.

Parameters:

pixel_buffer – Pointer to the pixel buffer containing the image data.
byte_total_count – The total number of bytes in the pixel buffer.
has_alpha – Flag indicating whether the pixel buffer includes an alpha channel.

void lv_gltf_data_texture_to_image_dsc(lv_image_dsc_t *new_image_dsc, lv_gltf_model_t *data_obj, uint32_t model_texture_index)¶

Convert a texture from a GLTF model to an image descriptor.

Parameters:

new_image_dsc – Pointer to the lv_image_dsc_t structure to be populated with the image data.
data_obj – Pointer to the lv_gltf_data_t object containing the model data.
model_texture_index – The index of the texture in the model to convert.

struct IndirectDrawCommand¶

Public Members

GLuint count¶

GLuint instanceCount¶

GLuint firstIndex¶

GLint baseVertex¶

GLuint baseInstance¶

struct lv_gltf_primitive_t¶

Public Members

IndirectDrawCommand draw¶

GLenum primitiveType¶

GLenum indexType¶

GLuint vertexArray¶

GLuint vertexBuffer¶

GLuint indexBuffer¶

GLuint materialUniformsIndex¶

GLuint albedoTexture¶

GLuint emissiveTexture¶

GLuint metalRoughTexture¶

GLuint occlusionTexture¶

GLuint normalTexture¶

GLuint diffuseTransmissionTexture¶

GLuint diffuseTransmissionColorTexture¶

GLuint transmissionTexture¶

GLuint transmissionTexcoordIndex¶

GLint baseColorTexcoordIndex¶

GLint emissiveTexcoordIndex¶

GLint metallicRoughnessTexcoordIndex¶

GLint occlusionTexcoordIndex¶

GLint normalTexcoordIndex¶

GLint diffuseTransmissionTexcoordIndex¶

GLint diffuseTransmissionColorTexcoordIndex¶

GLint clearcoatTexture¶

GLint clearcoatRoughnessTexture¶

GLint clearcoatNormalTexture¶

GLint clearcoatTexcoordIndex¶

GLint clearcoatRoughnessTexcoordIndex¶

GLint clearcoatNormalTexcoordIndex¶

GLuint thicknessTexture¶

GLint thicknessTexcoordIndex¶

GLuint diffuseTexture¶

GLint diffuseTexcoordIndex¶

GLuint specularGlossinessTexture¶

GLint specularGlossinessTexcoordIndex¶

struct lv_gltf_uniform_locations_t¶

Public Members

GLint camera¶

GLint view_projection_matrix¶

GLint model_matrix¶

GLint view_matrix¶

GLint projection_matrix¶

GLint env_intensity¶

GLint env_diffuse_sampler¶

GLint env_specular_sampler¶

GLint env_sheen_sampler¶

GLint env_ggx_lut_sampler¶

GLint env_charlie_lut_sampler¶

GLint env_mip_count¶

GLint exposure¶

GLint roughness_factor¶

GLint base_color_factor¶

GLint base_color_sampler¶

GLint base_color_uv_set¶

GLint base_color_uv_transform¶

GLint emissive_factor¶

GLint emissive_sampler¶

GLint emissive_uv_set¶

GLint emissive_uv_transform¶

GLint emissive_strength¶

GLint metallic_factor¶

GLint metallic_roughness_sampler¶

GLint metallic_roughness_uv_set¶

GLint metallic_roughness_uv_transform¶

GLint occlusion_strength¶

GLint occlusion_sampler¶

GLint occlusion_uv_set¶

GLint occlusion_uv_transform¶

GLint normal_scale¶

GLint normal_sampler¶

GLint normal_uv_set¶

GLint normal_uv_transform¶

GLint clearcoat_factor¶

GLint clearcoat_roughness_factor¶

GLint clearcoat_sampler¶

GLint clearcoat_uv_set¶

GLint clearcoat_uv_transform¶

GLint clearcoat_roughness_sampler¶

GLint clearcoat_roughness_uv_set¶

GLint clearcoat_roughness_uv_transform¶

GLint clearcoat_normal_scale¶

GLint clearcoat_normal_sampler¶

GLint clearcoat_normal_uv_set¶

GLint clearcoat_normal_uv_transform¶

GLint thickness¶

GLint thickness_sampler¶

GLint thickness_uv_set¶

GLint thickness_uv_transform¶

GLint diffuse_transmission_sampler¶

GLint diffuse_transmission_uv_set¶

GLint diffuse_transmission_uv_transform¶

GLint diffuse_transmission_color_sampler¶

GLint diffuse_transmission_color_uv_set¶

GLint diffuse_transmission_color_uv_transform¶

GLint sheen_color_factor¶

GLint sheen_roughness_factor¶

GLint specular_color_factor¶

GLint specular_factor¶

GLint diffuse_transmission_color_factor¶

GLint diffuse_transmission_factor¶

GLint ior¶

GLint alpha_cutoff¶

GLint dispersion¶

GLint screen_size¶

GLint transmission_factor¶

GLint transmission_sampler¶

GLint transmission_uv_set¶

GLint transmission_uv_transform¶

GLint transmission_framebuffer_sampler¶

GLint transmission_framebuffer_size¶

GLint attenuation_distance¶

GLint attenuation_color¶

GLint joints_sampler¶

GLint diffuse_factor¶

GLint glossiness_factor¶

GLint diffuse_sampler¶

GLint diffuse_uv_set¶

GLint diffuse_uv_transform¶

GLint specular_glossiness_sampler¶

GLint specular_glossiness_uv_set¶

GLint specular_glossiness_uv_transform¶

struct lv_gltf_shaderset_t¶

Public Members

GLuint program¶

uint32_t bg_program¶

uint32_t vert¶

uint32_t frag¶

struct lv_gltf_compiled_shader_t¶

Public Members

lv_gltf_uniform_locations_t uniforms¶

lv_gltf_shaderset_t shaderset¶