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This commit is contained in:
Dominic Masters
2026-01-20 09:17:10 -06:00
parent bdf18fffd3
commit 12dade2ef6
13 changed files with 207 additions and 135 deletions
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16
src/display/Display.cpp
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@@ -9,9 +9,9 @@
using namespace Dawn;
MeshVertex vertices[3] = {
{ Color4B::RED, glm::vec2(0.0f, 0.0f), glm::vec3(-0.5f, -0.5f, 0.0f) },
{ Color4B::GREEN, glm::vec2(1.0f, 0.0f), glm::vec3(0.5f, -0.5f, 0.0f) },
{ Color4B::BLUE, glm::vec2(0.5f, 1.0f), glm::vec3(0.0f, 0.5f, 0.0f) }
{ {255, 0, 0, 255}, glm::vec2(0.5f, 1.0f), glm::vec3(0.0f, 0.5f, 0.0f) },
{ {0, 255, 0, 255}, glm::vec2(0.0f, 0.0f), glm::vec3(-0.5f, -0.5f, 0.0f) },
{ {0, 0, 255, 255}, glm::vec2(1.0f, 0.0f), glm::vec3(0.5f, -0.5f, 0.0f) }
};
Display::Display(Engine &engine) :
@@ -20,8 +20,9 @@ Display::Display(Engine &engine) :
window(nullptr),
#endif
engine(engine),
mesh(3, PrimitiveType::Triangles, vertices)
mesh(3, PrimitiveType::TRIANGLES, vertices)
{
#if DAWN_SDL2
uint32_t flags = SDL_INIT_VIDEO;
#if DAWN_SDL2_GAMEPAD
@@ -104,7 +105,7 @@ void Display::update(void) {
}
}
SDL_GL_MakeCurrent(this->window, this->glContext);
// SDL_GL_MakeCurrent(this->window, this->glContext);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(
@@ -118,6 +119,11 @@ void Display::update(void) {
// glViewport(0, 0, DEFAULT_WIDTH, DEFAULT_HEIGHT);
GLenum err = glGetError();
if (err != GL_NO_ERROR) {
printf("OpenGL error: %d\n", err);
}
SDL_GL_SwapWindow(this->window);
#endif
}

1
src/display/color/Color.hpp
View File

@@ -4,7 +4,6 @@
// https://opensource.org/licenses/MIT
#pragma once
#include "IColor.hpp"
#include "Color3B.hpp"
#include "Color3F.hpp"
#include "Color4B.hpp"

37
src/display/color/Color3B.hpp
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@@ -4,14 +4,25 @@
// https://opensource.org/licenses/MIT
#pragma once
#include "IColor.hpp"
#include "dawn.hpp"
namespace Dawn {
struct Color3B : public Color {
struct Color4B;
struct Color3F;
struct Color4F;
#pragma pack(push, 1)
struct Color3B {
public:
const uint8_t r;
const uint8_t g;
const uint8_t b;
union {
struct {
uint8_t r;
uint8_t g;
uint8_t b;
};
uint8_t rgb[3];
};
/**
* Color (RGB, byte) constructor
@@ -22,25 +33,33 @@ namespace Dawn {
*/
Color3B(const uint8_t r, const uint8_t g, const uint8_t b);
/**
* Color (RGB, byte) constructor from array
*
* @param rgb Array of 3 bytes: {r, g, b}
*/
Color3B(const uint8_t rgb[3]);
/**
* Gets this color as a 3-channel byte color.
*/
Color3B toColor3B(void) const override;
Color3B toColor3B(void) const;
/**
* Gets this color as a 4-channel byte color. Alpha is set to 255.
*/
Color4B toColor4B(void) const override;
Color4B toColor4B(void) const;
/**
* Gets this color as a 3-channel float color. (0-1 range)
*/
Color3F toColor3F(void) const override;
Color3F toColor3F(void) const;
/**
* Gets this color as a 4-channel float color. (0-1 range), Alpha is set
* to 1.0f
*/
Color4F toColor4F(void) const override;
Color4F toColor4F(void) const;
};
#pragma pack(pop)
}

5
src/display/color/Color3F.cpp
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@@ -14,6 +14,11 @@ Color3F::Color3F(
) : r(r), g(g), b(b) {
}
Color3F::Color3F(
const float_t rgb[3]
) : r(rgb[0]), g(rgb[1]), b(rgb[2]) {
}
Color3B Color3F::toColor3B(void) const {
return Color3B(
static_cast<uint8_t>(r * 255.0f),

37
src/display/color/Color3F.hpp
View File

@@ -4,14 +4,25 @@
// https://opensource.org/licenses/MIT
#pragma once
#include "IColor.hpp"
#include "dawn.hpp"
namespace Dawn {
struct Color3F : public Color {
struct Color3B;
struct Color4B;
struct Color4F;
#pragma pack(push, 1)
struct Color3F {
public:
const float_t r;
const float_t g;
const float_t b;
union {
struct {
float_t r;
float_t g;
float_t b;
};
float_t rgb[3];
};
/**
* Color (RGB, float) constructor
@@ -22,24 +33,32 @@ namespace Dawn {
*/
Color3F(const float_t r, const float_t g, const float_t b);
/**
* Color (RGB, float) constructor from array
*
* @param rgb Array of 3 float_t: {r, g, b}
*/
Color3F(const float_t rgb[3]);
/**
* Gets this color as a 3-channel byte color.
*/
Color3B toColor3B(void) const override;
Color3B toColor3B(void) const;
/**
* Gets this color as a 4-channel byte color. Alpha is set to 255.
*/
Color4B toColor4B(void) const override;
Color4B toColor4B(void) const;
/**
* Gets this color as a 3-channel float_t color.
*/
Color3F toColor3F(void) const override;
Color3F toColor3F(void) const;
/**
* Gets this color as a 4-channel float_t color. Alpha is set to 1.0f
*/
Color4F toColor4F(void) const override;
Color4F toColor4F(void) const;
};
#pragma pack(pop)
}

32
src/display/color/Color4B.cpp
View File

@@ -7,30 +7,28 @@
using namespace Dawn;
const Color4B Color4B::WHITE = Color4B(255, 255, 255, 255);
const Color4B Color4B::BLACK = Color4B(0, 0, 0, 255);
const Color4B Color4B::RED = Color4B(255, 0, 0, 255);
const Color4B Color4B::GREEN = Color4B(0, 255, 0, 255);
const Color4B Color4B::BLUE = Color4B(0, 0, 255, 255);
const Color4B Color4B::YELLOW = Color4B(255, 255, 0, 255);
const Color4B Color4B::CYAN = Color4B(0, 255, 255, 255);
const Color4B Color4B::MAGENTA = Color4B(255, 0, 255, 255);
const Color4B Color4B::TRANSPARENT = Color4B(0, 0, 0, 0);
const Color4B Color4B::CORNFLOWER_BLUE = Color4B(100, 149, 237, 255);
const Color4B Color4B::WHITE = Color4B(0xFF, 0xFF, 0xFF, 0xFF);
const Color4B Color4B::BLACK = Color4B(0x00, 0x00, 0x00, 0xFF);
const Color4B Color4B::RED = Color4B(0xFF, 0x00, 0x00, 0xFF);
const Color4B Color4B::GREEN = Color4B(0x00, 0xFF, 0x00, 0xFF);
const Color4B Color4B::BLUE = Color4B(0x00, 0x00, 0xFF, 0xFF);
const Color4B Color4B::YELLOW = Color4B(0xFF, 0xFF, 0x00, 0xFF);
const Color4B Color4B::CYAN = Color4B(0x00, 0xFF, 0xFF, 0xFF);
const Color4B Color4B::MAGENTA = Color4B(0xFF, 0x00, 0xFF, 0xFF);
const Color4B Color4B::TRANSPARENT = Color4B(0x00, 0x00, 0x00, 0x00);
const Color4B Color4B::CORNFLOWER_BLUE = Color4B(0x64, 0x95, 0xED, 0xFF);
Color4B::Color4B(
const uint8_t r,
const uint8_t g,
const uint8_t b,
const uint8_t a
) : Color3B(r, g, b), a(a) {
) : r(r), g(g), b(b), a(a) {
// Constructor body (if needed)
}
Color4B Color4B::toColor4B(void) const {
return Color4B(r, g, b, a);
}
Color4F Color4B::toColor4F(void) const {
return Color4F(r / 255.0f, g / 255.0f, b / 255.0f, a / 255.0f);
Color4B::Color4B(
const uint8_t rgba[4]
) : r(rgba[0]), g(rgba[1]), b(rgba[2]), a(rgba[3]) {
// Constructor body (if needed)
}

33
src/display/color/Color4B.hpp
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@@ -4,11 +4,15 @@
// https://opensource.org/licenses/MIT
#pragma once
#include "Color3B.hpp"
#include "dawn.hpp"
namespace Dawn {
struct Color4B : public Color3B {
public:
struct Color3B;
struct Color3F;
struct Color4F;
#pragma pack(push, 1)
struct Color4B {
static const Color4B WHITE;
static const Color4B BLACK;
static const Color4B RED;
@@ -20,7 +24,16 @@ namespace Dawn {
static const Color4B TRANSPARENT;
static const Color4B CORNFLOWER_BLUE;
const uint8_t a;
union {
struct {
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t a;
};
uint8_t rgba[4];
};
/**
* Color (RGBA, byte) constructor
@@ -38,13 +51,11 @@ namespace Dawn {
);
/**
* Gets this color as a 4-channel byte color.
* Color (RGBA, byte) constructor from array
*
* @param rgba Array of 4 bytes: {r, g, b, a}
*/
Color4B toColor4B(void) const override;
/**
* Gets this color as a 4-channel float color. (0-1 range)
*/
Color4F toColor4F(void) const override;
Color4B(const uint8_t rgba[4]);
};
#pragma pack(pop)
}

19
src/display/color/Color4F.cpp
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@@ -23,7 +23,24 @@ Color4F::Color4F(
const float_t g,
const float_t b,
const float_t a
) : Color3F(r, g, b), a(a) {
) : r(r), g(g), b(b), a(a) {
}
Color4F::Color4F(
const float_t rgba[4]
) : r(rgba[0]), g(rgba[1]), b(rgba[2]), a(rgba[3]) {
}
Color3B Color4F::toColor3B(void) const {
return Color3B(
static_cast<uint8_t>(r * 255.0f),
static_cast<uint8_t>(g * 255.0f),
static_cast<uint8_t>(b * 255.0f)
);
}
Color3F Color4F::toColor3F(void) const {
return Color3F(r, g, b);
}
Color4B Color4F::toColor4B(void) const {

42
src/display/color/Color4F.hpp
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@@ -7,7 +7,12 @@
#include "Color3F.hpp"
namespace Dawn {
struct Color4F : public Color3F {
struct Color3B;
struct Color3F;
struct Color4B;
#pragma pack(push, 1)
struct Color4F {
public:
static const Color4F WHITE;
static const Color4F BLACK;
@@ -20,7 +25,16 @@ namespace Dawn {
static const Color4F TRANSPARENT;
static const Color4F CORNFLOWER_BLUE;
const float_t a;
union {
struct {
float_t r;
float_t g;
float_t b;
float_t a;
};
float_t rgba[4];
};
/**
* Color (RGBA, float) constructor
@@ -37,14 +51,34 @@ namespace Dawn {
const float_t a
);
/**
* Color (RGBA, float) constructor from array
*
* @param rgba Array of 4 float_t: {r, g, b, a}
*/
Color4F(const float_t rgba[4]);
/**
* Gets this color as a 3-channel byte color.
*
* @return Color3B representation of this color (alpha is discarded)
*/
Color3B toColor3B(void) const;
/**
* Gets this color as a 3-channel float color. (alpha is discarded)
*/
Color3F toColor3F(void) const;
/**
* Gets this color as a 4-channel byte color.
*/
Color4B toColor4B(void) const override;
Color4B toColor4B(void) const;
/**
* Gets this color as a 4-channel float_t color.
*/
Color4F toColor4F(void) const override;
Color4F toColor4F(void) const;
};
#pragma pack(pop)
}

37
src/display/color/IColor.hpp
View File

@@ -1,37 +0,0 @@
// Copyright (c) 2025 Dominic Masters
//
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT
#pragma once
#include "dawn.hpp"
namespace Dawn {
struct Color3B;
struct Color4B;
struct Color3F;
struct Color4F;
struct Color {
public:
/**
* Gets this color as a 3-channel byte color.
*/
virtual Color3B toColor3B(void) const = 0;
/**
* Gets this color as a 4-channel byte color.
*/
virtual Color4B toColor4B(void) const = 0;
/**
* Gets this color as a 3-channel float color. (0-1 range)
*/
virtual Color3F toColor3F(void) const = 0;
/**
* Gets this color as a 4-channel float color. (0-1 range)
*/
virtual Color4F toColor4F(void) const = 0;
};
}

12
src/display/mesh/Mesh.cpp
View File

@@ -35,33 +35,33 @@ void Mesh::draw(
"Vertex offset + count must not exceed vertex count"
);
#if DISPLAY_SDL2
#if DAWN_SDL2
// PSP style pointer legacy OpenGL
const GLsizei stride = sizeof(MeshVertex);
glColorPointer(
MESH_VERTEX_COLOR_SIZE,
4,
GL_UNSIGNED_BYTE,
stride,
(const GLvoid*)&this->vertices[offset].color[0]
);
glTexCoordPointer(
MESH_VERTEX_UV_SIZE,
2,
GL_FLOAT,
stride,
(const GLvoid*)&this->vertices[offset].uv[0]
);
glVertexPointer(
MESH_VERTEX_POS_SIZE,
3,
GL_FLOAT,
stride,
(const GLvoid*)&this->vertices[offset].pos[0]
(const GLvoid*)&this->vertices[offset].position[0]
);
glDrawArrays(
this->primitiveType,
static_cast<GLenum>(this->primitiveType),
0,
count
);

5
src/display/mesh/Mesh.hpp
View File

@@ -8,14 +8,15 @@
#include "display/color/Color.hpp"
namespace Dawn {
#pragma pack(push, 1)
struct MeshVertex {
public:
#if DAWN_SDL2
Color4B color;
uint8_t color[4];
glm::vec2 uv;
glm::vec3 position;
#endif
};
#pragma pack(pop)
struct Mesh {
private:

6
src/display/mesh/PrimitiveType.hpp
View File

@@ -9,9 +9,9 @@
namespace Dawn {
enum class PrimitiveType {
#if DAWN_SDL2
Triangles = GL_TRIANGLES,
Lines = GL_LINES,
Points = GL_POINTS,
TRIANGLES = GL_TRIANGLES,
LINES = GL_LINES,
POINTS = GL_POINTS,
#endif
};
}