diff options
Diffstat (limited to 'gfx/models')
| -rw-r--r-- | gfx/models/mesh.cpp | 3 | ||||
| -rw-r--r-- | gfx/models/texture.cpp | 32 | ||||
| -rw-r--r-- | gfx/models/texture.h | 19 | ||||
| -rw-r--r-- | gfx/models/vertex.hpp | 9 |
4 files changed, 57 insertions, 6 deletions
diff --git a/gfx/models/mesh.cpp b/gfx/models/mesh.cpp index 3db1ad5..2719211 100644 --- a/gfx/models/mesh.cpp +++ b/gfx/models/mesh.cpp @@ -7,7 +7,8 @@ Mesh::Mesh(const std::span<const Vertex> vertices, const std::span<const unsigned int> indices, GLenum m) :
m_numIndices {static_cast<GLsizei>(indices.size())}, mode {m}
{
- VertexArrayObject<Vertex>::configure<&Vertex::pos, &Vertex::texCoord, &Vertex::normal, &Vertex::colour>(
+ VertexArrayObject<Vertex>::configure<&Vertex::pos, &Vertex::texCoord, &Vertex::normal, &Vertex::colour,
+ &Vertex::material>(
m_vertexArrayObject, m_vertexArrayBuffers[0], m_vertexArrayBuffers[1], vertices, indices);
}
diff --git a/gfx/models/texture.cpp b/gfx/models/texture.cpp index efc76e1..a500fed 100644 --- a/gfx/models/texture.cpp +++ b/gfx/models/texture.cpp @@ -85,3 +85,35 @@ Texture::saveNormal(const glTexture & texture, const glm::ivec2 & size, const ch {
save(texture, GL_BGR, GL_BYTE, size, 3, path, 2);
}
+
+TextureAtlas::TextureAtlas(GLsizei width, GLsizei height, GLuint count) : Texture(width, height, nullptr, {})
+{
+ glBindTexture(GL_TEXTURE_RECTANGLE, m_atlas);
+
+ glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+ glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexImage2D(GL_TEXTURE_RECTANGLE, 0, GL_RGBA16UI, 2, static_cast<GLsizei>(count), 0, GL_RGBA_INTEGER,
+ GL_UNSIGNED_BYTE, nullptr);
+}
+
+void
+TextureAtlas::bind(GLenum unit) const
+{
+ Texture::bind(unit);
+ glActiveTexture(unit + 1);
+ glBindTexture(GL_TEXTURE_RECTANGLE, m_atlas);
+}
+
+GLuint
+TextureAtlas::add(glm::ivec2 position, glm::ivec2 size, void * data, TextureOptions)
+{
+ glTextureSubImage2D(m_texture, 0, position.x, position.y, size.x, size.y, GL_RGBA, GL_UNSIGNED_BYTE, data);
+ struct Material {
+ glm::vec<2, uint16_t> position, size, unused1 {}, unused2 {};
+ } material {position, size};
+ glTextureSubImage2D(m_atlas, 0, 0, static_cast<GLsizei>(used), 2, 1, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, &material);
+ return ++used;
+}
diff --git a/gfx/models/texture.h b/gfx/models/texture.h index ffc9a4a..7900f17 100644 --- a/gfx/models/texture.h +++ b/gfx/models/texture.h @@ -16,6 +16,9 @@ struct TextureOptions { class Texture {
public:
+ virtual ~Texture() = default;
+ DEFAULT_MOVE_NO_COPY(Texture);
+
explicit Texture(const std::filesystem::path & fileName, TextureOptions = {});
explicit Texture(const Image & image, TextureOptions = {});
explicit Texture(GLsizei width, GLsizei height, TextureOptions = {});
@@ -23,17 +26,29 @@ public: static Cache<Texture, std::filesystem::path> cachedTexture;
- void bind(GLenum unit = GL_TEXTURE0) const;
+ virtual void bind(GLenum unit = GL_TEXTURE0) const;
void save(const glm::ivec2 & size, const char * path) const;
static void save(const glTexture &, const glm::ivec2 & size, const char * path);
static void saveDepth(const glTexture &, const glm::ivec2 & size, const char * path);
static void saveNormal(const glTexture &, const glm::ivec2 & size, const char * path);
-private:
+protected:
static void save(const glTexture &, GLenum, GLenum, const glm::ivec2 & size, unsigned short channels,
const char * path, short tgaFormat);
glTexture m_texture;
GLenum type;
};
+
+class TextureAtlas : public Texture {
+public:
+ TextureAtlas(GLsizei width, GLsizei height, GLuint count);
+
+ void bind(GLenum unit = GL_TEXTURE0) const override;
+ GLuint add(glm::ivec2 position, glm::ivec2 size, void * data, TextureOptions = {});
+
+private:
+ glTexture m_atlas;
+ GLuint used {};
+};
diff --git a/gfx/models/vertex.hpp b/gfx/models/vertex.hpp index 64ec3d0..181e7e7 100644 --- a/gfx/models/vertex.hpp +++ b/gfx/models/vertex.hpp @@ -1,12 +1,14 @@ #pragma once +#include <GL/glew.h> #include <glm/glm.hpp> class Vertex { public: #ifndef __cpp_aggregate_paren_init - constexpr Vertex(glm::vec3 pos, glm::vec2 texCoord, glm::vec3 normal, glm::vec4 colour = {}) : - pos {std::move(pos)}, texCoord {std::move(texCoord)}, normal {std::move(normal)}, colour {std::move(colour)} + constexpr Vertex(glm::vec3 pos, glm::vec2 texCoord, glm::vec3 normal, glm::vec4 colour = {}, GLuint material = 0) : + pos {std::move(pos)}, texCoord {std::move(texCoord)}, normal {std::move(normal)}, colour {std::move(colour)}, + material {material} { } #endif @@ -16,5 +18,6 @@ public: glm::vec3 pos; glm::vec2 texCoord; glm::vec3 normal; - glm::vec4 colour; + glm::vec4 colour {}; + GLuint material {}; }; |