Files
panopainter/src/texture.cpp

712 lines
21 KiB
C++

#include "pch.h"
#include "log.h"
#include "texture.h"
#include "util.h"
#include "app.h"
#include "renderer_gl/opengl_capabilities.h"
#include <cstdint>
namespace {
void gen_opengl_textures(std::uint32_t count, std::uint32_t* ids) noexcept
{
glGenTextures(static_cast<GLsizei>(count), reinterpret_cast<GLuint*>(ids));
}
void delete_opengl_textures(std::uint32_t count, const std::uint32_t* ids) noexcept
{
glDeleteTextures(static_cast<GLsizei>(count), reinterpret_cast<const GLuint*>(ids));
}
void bind_opengl_texture(std::uint32_t target, std::uint32_t texture) noexcept
{
glBindTexture(static_cast<GLenum>(target), static_cast<GLuint>(texture));
}
void upload_opengl_texture_2d(
std::uint32_t target,
std::int32_t level,
std::int32_t internal_format,
std::int32_t width,
std::int32_t height,
std::int32_t border,
std::uint32_t pixel_format,
std::uint32_t component_type,
const void* data) noexcept
{
glTexImage2D(
static_cast<GLenum>(target),
static_cast<GLint>(level),
static_cast<GLint>(internal_format),
static_cast<GLsizei>(width),
static_cast<GLsizei>(height),
static_cast<GLint>(border),
static_cast<GLenum>(pixel_format),
static_cast<GLenum>(component_type),
data);
}
void update_opengl_texture_2d_region(
std::uint32_t target,
std::int32_t level,
std::int32_t x,
std::int32_t y,
std::int32_t width,
std::int32_t height,
std::uint32_t pixel_format,
std::uint32_t component_type,
const void* data) noexcept
{
glTexSubImage2D(
static_cast<GLenum>(target),
static_cast<GLint>(level),
static_cast<GLint>(x),
static_cast<GLint>(y),
static_cast<GLsizei>(width),
static_cast<GLsizei>(height),
static_cast<GLenum>(pixel_format),
static_cast<GLenum>(component_type),
data);
}
void generate_opengl_mipmap(std::uint32_t target) noexcept
{
glGenerateMipmap(static_cast<GLenum>(target));
}
void gen_opengl_framebuffers(std::uint32_t count, std::uint32_t* ids) noexcept
{
glGenFramebuffers(static_cast<GLsizei>(count), reinterpret_cast<GLuint*>(ids));
}
void delete_opengl_framebuffers(std::uint32_t count, const std::uint32_t* ids) noexcept
{
glDeleteFramebuffers(static_cast<GLsizei>(count), reinterpret_cast<const GLuint*>(ids));
}
void query_opengl_integer(std::uint32_t name, std::int32_t* value) noexcept
{
glGetIntegerv(static_cast<GLenum>(name), reinterpret_cast<GLint*>(value));
}
void bind_opengl_framebuffer(std::uint32_t target, std::uint32_t framebuffer) noexcept
{
glBindFramebuffer(static_cast<GLenum>(target), static_cast<GLuint>(framebuffer));
}
void attach_opengl_framebuffer_texture_2d(
std::uint32_t target,
std::uint32_t attachment,
std::uint32_t texture_target,
std::uint32_t texture,
std::int32_t level) noexcept
{
glFramebufferTexture2D(
static_cast<GLenum>(target),
static_cast<GLenum>(attachment),
static_cast<GLenum>(texture_target),
static_cast<GLuint>(texture),
static_cast<GLint>(level));
}
std::uint32_t check_opengl_framebuffer_status(std::uint32_t target) noexcept
{
return static_cast<std::uint32_t>(glCheckFramebufferStatus(static_cast<GLenum>(target)));
}
void read_opengl_pixels(
std::int32_t x,
std::int32_t y,
std::int32_t width,
std::int32_t height,
std::uint32_t pixel_format,
std::uint32_t component_type,
void* pixels) noexcept
{
glReadPixels(
static_cast<GLint>(x),
static_cast<GLint>(y),
static_cast<GLsizei>(width),
static_cast<GLsizei>(height),
static_cast<GLenum>(pixel_format),
static_cast<GLenum>(component_type),
pixels);
}
void gen_opengl_samplers(std::uint32_t count, std::uint32_t* ids) noexcept
{
#if USE_SAMPLER
glGenSamplers(static_cast<GLsizei>(count), reinterpret_cast<GLuint*>(ids));
#else
for (std::uint32_t i = 0U; i < count; ++i) {
ids[i] = 0U;
}
#endif
}
void set_opengl_sampler_parameter_i(
std::uint32_t sampler,
std::uint32_t parameter,
std::int32_t value) noexcept
{
#if USE_SAMPLER
glSamplerParameteri(
static_cast<GLuint>(sampler),
static_cast<GLenum>(parameter),
static_cast<GLint>(value));
#else
(void)sampler;
(void)parameter;
(void)value;
#endif
}
void set_opengl_sampler_parameter_fv(
std::uint32_t sampler,
std::uint32_t parameter,
const float* values) noexcept
{
#if USE_SAMPLER && !defined(__GLES__)
glSamplerParameterfv(
static_cast<GLuint>(sampler),
static_cast<GLenum>(parameter),
values);
#else
(void)sampler;
(void)parameter;
(void)values;
#endif
}
void bind_opengl_sampler(std::uint32_t unit, std::uint32_t sampler) noexcept
{
#if USE_SAMPLER
glBindSampler(static_cast<GLuint>(unit), static_cast<GLuint>(sampler));
#else
(void)unit;
(void)sampler;
#endif
}
}
std::map<uint16_t, Texture2D> TextureManager::m_textures;
std::array<int, 6> TextureCube::m_faces_map {
static_cast<int>(pp::renderer::gl::cube_face_texture_target(0U)),
static_cast<int>(pp::renderer::gl::cube_face_texture_target(1U)),
static_cast<int>(pp::renderer::gl::cube_face_texture_target(2U)),
static_cast<int>(pp::renderer::gl::cube_face_texture_target(3U)),
static_cast<int>(pp::renderer::gl::cube_face_texture_target(4U)),
static_cast<int>(pp::renderer::gl::cube_face_texture_target(5U)),
};
TextureCube::TextureCube(TextureCube&& other) noexcept
{
other.m_faces = std::move(other.m_faces);
m_cubetex_id = other.m_cubetex_id; other.m_cubetex_id = 0;
m_resolution = other.m_resolution; other.m_resolution = 0;
}
TextureCube::~TextureCube()
{
destroy();
}
void TextureCube::operator=(TextureCube&& other) noexcept
{
other.m_faces = std::move(other.m_faces);
m_cubetex_id = other.m_cubetex_id; other.m_cubetex_id = 0;
m_resolution = other.m_resolution; other.m_resolution = 0;
}
bool TextureCube::create(int resolution) noexcept
{
App::I->render_task([this, resolution]
{
destroy();
m_resolution = resolution;
const auto format = pp::renderer::gl::texture_format_for_channel_count(4U);
const auto texture = pp::renderer::gl::allocate_opengl_texture_cube(
pp::renderer::gl::OpenGlTextureCubeAllocation {
.resolution = m_resolution,
.internal_format = static_cast<std::int32_t>(format.internal_format),
.pixel_format = format.pixel_format,
.component_type = pp::renderer::gl::unsigned_byte_component_type(),
},
pp::renderer::gl::OpenGlTextureCubeAllocationDispatch {
.gen_textures = gen_opengl_textures,
.bind_texture = bind_opengl_texture,
.tex_image_2d = upload_opengl_texture_2d,
});
if (!texture.ok())
{
LOG("TextureCube::create() failed because: %s", texture.status().message);
return;
}
m_cubetex_id = static_cast<GLuint>(texture.value());
});
return m_cubetex_id != 0;
}
void TextureCube::destroy() noexcept
{
if (m_cubetex_id)
{
App::I->render_task([f=m_faces, id=m_cubetex_id]
{
std::array<std::uint32_t, 7> texture_ids {};
for (std::size_t i = 0U; i < f.size(); ++i)
texture_ids[i] = static_cast<std::uint32_t>(f[i]);
texture_ids[f.size()] = static_cast<std::uint32_t>(id);
const auto status = pp::renderer::gl::delete_opengl_texture_objects(
texture_ids,
pp::renderer::gl::OpenGlTexture2DDeleteDispatch {
.delete_textures = delete_opengl_textures,
});
if (!status.ok())
LOG("TextureCube::destroy() failed because: %s", status.message);
});
m_cubetex_id = 0;
m_faces.fill(0);
m_resolution = 0;
}
}
void TextureCube::bind() const noexcept
{
assert(App::I->is_render_thread());
const auto status = pp::renderer::gl::bind_opengl_texture_cube(
static_cast<std::uint32_t>(m_cubetex_id),
pp::renderer::gl::OpenGlTexture2DBindDispatch {
.bind_texture = bind_opengl_texture,
});
if (!status.ok())
LOG("TextureCube::bind() failed because: %s", status.message);
}
bool TextureManager::load(const char* path, bool generate_mipmaps)
{
uint16_t id = const_hash(path);
auto t = m_textures.find(id);
if (t == m_textures.end() || !m_textures[id].ready())
{
if (!m_textures[id].load(path))
return false;
}
if (generate_mipmaps && !m_textures[id].has_mips)
m_textures[id].create_mipmaps();
return true;
}
void TextureManager::assign(uint16_t id, GLuint tex, int w, int h, GLuint internal_format, GLuint format)
{
m_textures[id].assign(tex, w, h, internal_format, format);
}
void TextureManager::assign(uint16_t id, GLuint tex, int w, int h)
{
assign(
id,
tex,
w,
h,
pp::renderer::gl::rgba8_internal_format(),
pp::renderer::gl::rgba_pixel_format());
}
Texture2D& TextureManager::get(uint16_t id)
{
return m_textures[id];
}
void TextureManager::invalidate()
{
for (auto& t : m_textures)
{
t.second.destroy();
}
m_textures.clear();
}
Image Texture2D::get_image() const noexcept
{
Image ret;
ret.create(m_width, m_height);
App::I->render_task([&]
{
const auto readback = pp::renderer::gl::readback_opengl_texture_2d(
pp::renderer::gl::OpenGlTexture2DReadback {
.texture_id = static_cast<std::uint32_t>(m_tex),
.width = m_width,
.height = m_height,
.format = pp::renderer::gl::rgba8_readback_format(),
.pixels = ret.m_data.get(),
},
pp::renderer::gl::OpenGlTexture2DReadbackDispatch {
.bind_texture = bind_opengl_texture,
.gen_framebuffers = gen_opengl_framebuffers,
.get_integer = query_opengl_integer,
.bind_framebuffer = bind_opengl_framebuffer,
.framebuffer_texture_2d = attach_opengl_framebuffer_texture_2d,
.check_framebuffer_status = check_opengl_framebuffer_status,
.read_pixels = read_opengl_pixels,
.delete_framebuffers = delete_opengl_framebuffers,
});
if (!readback.ok()) {
LOG("Texture2D::get_image() failed because: %s", readback.status().message);
return;
}
if (!readback.value().pixels_read) {
LOG("Texture2D::get_image() failed because: %s",
pp::renderer::gl::framebuffer_status_name(readback.value().framebuffer_status));
}
});
return ret;
}
Texture2D::Texture2D(Texture2D&& other) noexcept
{
m_tex = other.m_tex;
m_width = other.m_width;
m_height = other.m_height;
m_format = other.m_format;
m_iformat = other.m_iformat;
has_mips = other.has_mips;
other.m_tex = false;
}
void Texture2D::operator=(Texture2D&& other) noexcept
{
m_tex = other.m_tex;
m_width = other.m_width;
m_height = other.m_height;
m_format = other.m_format;
m_iformat = other.m_iformat;
has_mips = other.has_mips;
other.m_tex = false;
}
bool Texture2D::create(int width, int height)
{
return create(
width,
height,
static_cast<GLint>(pp::renderer::gl::rgba8_internal_format()),
static_cast<GLint>(pp::renderer::gl::rgba_pixel_format()));
}
bool Texture2D::create(int width, int height, GLint internal_format)
{
return create(
width,
height,
internal_format,
static_cast<GLint>(pp::renderer::gl::rgba_pixel_format()));
}
bool Texture2D::create(int width, int height, GLint internal_format, GLint format, const uint8_t* data)
{
App::I->render_task([=]
{
destroy();
const auto component_type = pp::renderer::gl::texture_upload_type_for_internal_format(
static_cast<std::uint32_t>(internal_format));
const auto texture = pp::renderer::gl::allocate_opengl_texture_2d(
pp::renderer::gl::OpenGlTexture2DAllocation {
.width = width,
.height = height,
.internal_format = internal_format,
.pixel_format = static_cast<std::uint32_t>(format),
.component_type = component_type,
.data = data,
},
pp::renderer::gl::OpenGlTexture2DAllocationDispatch {
.gen_textures = gen_opengl_textures,
.bind_texture = bind_opengl_texture,
.tex_image_2d = upload_opengl_texture_2d,
});
if (!texture.ok()) {
LOG("Texture2D::create() failed because: %s", texture.status().message);
return;
}
m_width = width;
m_height = height;
m_format = format;
m_iformat = internal_format;
m_tex = static_cast<GLuint>(texture.value());
});
return true;
}
bool Texture2D::create(const Image& img)
{
const auto format = pp::renderer::gl::texture_format_for_channel_count(static_cast<std::uint32_t>(img.comp));
if (format.channel_count == 0U)
return false;
return create(
img.width,
img.height,
static_cast<GLint>(format.internal_format),
static_cast<GLint>(format.pixel_format),
img.data());
}
void Texture2D::create_mipmaps()
{
App::I->render_task([this]
{
const auto status = pp::renderer::gl::generate_opengl_texture_2d_mipmaps(
static_cast<std::uint32_t>(m_tex),
pp::renderer::gl::OpenGlTexture2DMipmapDispatch {
.bind_texture = bind_opengl_texture,
.generate_mipmap = generate_opengl_mipmap,
});
if (!status.ok()) {
LOG("Texture2D::create_mipmaps() failed because: %s", status.message);
return;
}
has_mips = true;
});
}
void Texture2D::assign(GLuint tex, int w, int h, GLuint internal_format, GLuint format)
{
m_tex = tex;
m_width = w;
m_height = h;
m_format = format;
m_iformat = internal_format;
}
void Texture2D::assign(GLuint tex, int w, int h)
{
assign(
tex,
w,
h,
pp::renderer::gl::rgba8_internal_format(),
pp::renderer::gl::rgba_pixel_format());
}
bool Texture2D::load(std::string filename)
{
LOG("load texture %s", filename.c_str());
Image img;
if (!img.load(filename))
return false;
return create(img);
}
bool Texture2D::load_file(std::string filename)
{
LOG("load texture %s", filename.c_str());
Image img;
if (!img.load_file(filename))
return false;
return create(img);
}
void Texture2D::destroy()
{
if (m_tex)
{
App::I->render_task_async([id = m_tex]
{
const auto status = pp::renderer::gl::delete_opengl_texture_2d(
static_cast<std::uint32_t>(id),
pp::renderer::gl::OpenGlTexture2DDeleteDispatch {
.delete_textures = delete_opengl_textures,
});
if (!status.ok())
LOG("Texture2D::destroy() failed because: %s", status.message);
});
m_tex = 0;
}
}
void Texture2D::bind() const
{
assert(App::I->is_render_thread());
const auto status = pp::renderer::gl::bind_opengl_texture_2d(
static_cast<std::uint32_t>(m_tex),
pp::renderer::gl::OpenGlTexture2DBindDispatch {
.bind_texture = bind_opengl_texture,
});
if (!status.ok())
LOG("Texture2D::bind() failed because: %s", status.message);
}
void Texture2D::unbind() const
{
assert(App::I->is_render_thread());
const auto status = pp::renderer::gl::bind_opengl_texture_2d(
0U,
pp::renderer::gl::OpenGlTexture2DBindDispatch {
.bind_texture = bind_opengl_texture,
});
if (!status.ok())
LOG("Texture2D::unbind() failed because: %s", status.message);
}
void Texture2D::update(const uint8_t* data)
{
App::I->render_task([this, data]
{
const auto status = pp::renderer::gl::update_opengl_texture_2d(
pp::renderer::gl::OpenGlTexture2DUpdate {
.texture_id = static_cast<std::uint32_t>(m_tex),
.width = m_width,
.height = m_height,
.pixel_format = static_cast<std::uint32_t>(m_format),
.component_type = pp::renderer::gl::unsigned_byte_component_type(),
.data = data,
},
pp::renderer::gl::OpenGlTexture2DUpdateDispatch {
.bind_texture = bind_opengl_texture,
.tex_sub_image_2d = update_opengl_texture_2d_region,
});
if (!status.ok())
LOG("Texture2D::update() failed because: %s", status.message);
});
}
glm::vec2 Texture2D::size() const
{
return { m_width, m_height };
}
Texture2D::~Texture2D()
{
destroy();
}
bool Sampler::create(GLint filter, GLint wrap)
{
bool ret = false;
App::I->render_task([this, &ret, filter, wrap]
{
const auto parameters = pp::renderer::gl::sampler_parameters_for_filter_wrap(
static_cast<std::uint32_t>(filter),
static_cast<std::uint32_t>(wrap));
const auto sampler = pp::renderer::gl::create_opengl_sampler(
parameters,
pp::renderer::gl::OpenGlSamplerCreateDispatch {
.gen_samplers = gen_opengl_samplers,
.sampler_parameter_i = set_opengl_sampler_parameter_i,
});
if (!sampler.ok())
{
ret = false;
LOG("Sampler::create() failed because: %s", sampler.status().message);
return;
}
id = static_cast<GLuint>(sampler.value());
ret = true;
});
return ret;
}
bool Sampler::create()
{
return create(
static_cast<GLint>(pp::renderer::gl::linear_texture_filter()),
static_cast<GLint>(pp::renderer::gl::clamp_to_edge_texture_wrap()));
}
bool Sampler::create(GLint filter)
{
return create(filter, static_cast<GLint>(pp::renderer::gl::clamp_to_edge_texture_wrap()));
}
void Sampler::set(GLint filter, GLint wrap)
{
App::I->render_task([=]
{
const auto parameters = pp::renderer::gl::sampler_parameters_for_filter_wrap(
static_cast<std::uint32_t>(filter),
static_cast<std::uint32_t>(wrap));
const auto status = pp::renderer::gl::set_opengl_sampler_parameters(
static_cast<std::uint32_t>(id),
parameters,
pp::renderer::gl::OpenGlSamplerParameterDispatch {
.sampler_parameter_i = set_opengl_sampler_parameter_i,
});
if (!status.ok())
LOG("Sampler::set() failed because: %s", status.message);
});
}
void Sampler::set()
{
set(
static_cast<GLint>(pp::renderer::gl::linear_texture_filter()),
static_cast<GLint>(pp::renderer::gl::clamp_to_edge_texture_wrap()));
}
void Sampler::set(GLint filter)
{
set(filter, static_cast<GLint>(pp::renderer::gl::clamp_to_edge_texture_wrap()));
}
void Sampler::set_filter(GLint filter_min, GLint filter_mag)
{
App::I->render_task([=]
{
const auto parameters = pp::renderer::gl::sampler_filter_parameters(
static_cast<std::uint32_t>(filter_min),
static_cast<std::uint32_t>(filter_mag));
const auto status = pp::renderer::gl::set_opengl_sampler_parameters(
static_cast<std::uint32_t>(id),
parameters,
pp::renderer::gl::OpenGlSamplerParameterDispatch {
.sampler_parameter_i = set_opengl_sampler_parameter_i,
});
if (!status.ok())
LOG("Sampler::set_filter() failed because: %s", status.message);
});
}
void Sampler::set_border(glm::vec4 rgba)
{
App::I->render_task([this, rgba]
{
const auto status = pp::renderer::gl::set_opengl_sampler_border_color(
static_cast<std::uint32_t>(id),
pp::renderer::gl::sampler_border_color_parameter_name(),
glm::value_ptr(rgba),
pp::renderer::gl::OpenGlSamplerBorderDispatch {
.sampler_parameter_fv = set_opengl_sampler_parameter_fv,
});
if (!status.ok())
LOG("Sampler::set_border() failed because: %s", status.message);
});
}
void Sampler::bind(int unit) const
{
assert(App::I->is_render_thread());
current_unit = unit;
const auto status = pp::renderer::gl::bind_opengl_sampler_object(
static_cast<std::uint32_t>(unit),
static_cast<std::uint32_t>(id),
pp::renderer::gl::OpenGlSamplerBindDispatch {
.bind_sampler = bind_opengl_sampler,
});
if (!status.ok())
LOG("Sampler::bind() failed because: %s", status.message);
}
void Sampler::unbind()
{
assert(App::I->is_render_thread());
const auto status = pp::renderer::gl::bind_opengl_sampler_object(
static_cast<std::uint32_t>(current_unit),
0U,
pp::renderer::gl::OpenGlSamplerBindDispatch {
.bind_sampler = bind_opengl_sampler,
});
if (!status.ok())
LOG("Sampler::unbind() failed because: %s", status.message);
}