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initial implementation; might not be the cleanest, barely held together, but thats what i have right now.

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This commit is contained in:
Johnny Cena 2025-08-28 12:08:37 +02:00
commit 5add3352d4
1 changed files with 366 additions and 217 deletions
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99
src/rcore.c
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@ -26,6 +26,8 @@
* - Linux DRM subsystem (KMS mode)
* > PLATFORM_ANDROID:
* - Android (ARM, ARM64)
* > PLATFORM_HEADLESS:
* - All platforms, dummy implementations
*
* CONFIGURATION:
* #define SUPPORT_DEFAULT_FONT (default)
@ -117,8 +119,10 @@
#include <time.h> // Required for: time() [Used in InitTimer()]
#include <math.h> // Required for: tan() [Used in BeginMode3D()], atan2f() [Used in LoadVrStereoConfig()]
#define RLGL_IMPLEMENTATION
#include "rlgl.h" // OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
#ifndef PLATFORM_HEADLESS
#define RLGL_IMPLEMENTATION
#include "rlgl.h" // OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
#endif
#define RAYMATH_IMPLEMENTATION
#include "raymath.h" // Vector2, Vector3, Quaternion and Matrix functionality
@ -561,6 +565,8 @@ const char *TextFormat(const char *text, ...); // Formatting of text with variab
#include "platforms/rcore_drm.c"
#elif defined(PLATFORM_ANDROID)
#include "platforms/rcore_android.c"
#elif defined(PLATFORM_HEADLESS)
#include "platforms/rcore_headless.c"
#else
// TODO: Include your custom platform backend!
// i.e software rendering backend or console backend!
@ -633,6 +639,8 @@ void InitWindow(int width, int height, const char *title)
TRACELOG(LOG_INFO, "Platform backend: NATIVE DRM");
#elif defined(PLATFORM_ANDROID)
TRACELOG(LOG_INFO, "Platform backend: ANDROID");
#elif defined(PLATFORM_HEADLESS)
TRACELOG(LOG_INFO, "Platform backend: HEADLESS");
#else
// TODO: Include your custom platform backend!
// i.e software rendering backend or console backend!
@ -642,6 +650,7 @@ void InitWindow(int width, int height, const char *title)
TRACELOG(LOG_INFO, "Supported raylib modules:");
TRACELOG(LOG_INFO, " > rcore:..... loaded (mandatory)");
TRACELOG(LOG_INFO, " > rlgl:...... loaded (mandatory)");
#if defined(SUPPORT_MODULE_RSHAPES)
TRACELOG(LOG_INFO, " > rshapes:... loaded (optional)");
#else
@ -693,6 +702,7 @@ void InitWindow(int width, int height, const char *title)
}
//--------------------------------------------------------------
#if !defined(PLATFORM_HEADLESS)
// Initialize rlgl default data (buffers and shaders)
// NOTE: CORE.Window.currentFbo.width and CORE.Window.currentFbo.height not used, just stored as globals in rlgl
rlglInit(CORE.Window.currentFbo.width, CORE.Window.currentFbo.height);
@ -701,38 +711,39 @@ void InitWindow(int width, int height, const char *title)
// Setup default viewport
SetupViewport(CORE.Window.currentFbo.width, CORE.Window.currentFbo.height);
#if defined(SUPPORT_MODULE_RTEXT)
#if defined(SUPPORT_DEFAULT_FONT)
// Load default font
// WARNING: External function: Module required: rtext
LoadFontDefault();
#if defined(SUPPORT_MODULE_RTEXT)
#if defined(SUPPORT_DEFAULT_FONT)
// Load default font
// WARNING: External function: Module required: rtext
LoadFontDefault();
#if defined(SUPPORT_MODULE_RSHAPES)
// Set font white rectangle for shapes drawing, so shapes and text can be batched together
// WARNING: rshapes module is required, if not available, default internal white rectangle is used
Rectangle rec = GetFontDefault().recs[95];
if (CORE.Window.flags & FLAG_MSAA_4X_HINT)
{
// NOTE: We try to maxime rec padding to avoid pixel bleeding on MSAA filtering
SetShapesTexture(GetFontDefault().texture, (Rectangle){ rec.x + 2, rec.y + 2, 1, 1 });
}
else
{
// NOTE: We set up a 1px padding on char rectangle to avoid pixel bleeding
SetShapesTexture(GetFontDefault().texture, (Rectangle){ rec.x + 1, rec.y + 1, rec.width - 2, rec.height - 2 });
}
#endif
#endif
#else
#if defined(SUPPORT_MODULE_RSHAPES)
// Set font white rectangle for shapes drawing, so shapes and text can be batched together
// WARNING: rshapes module is required, if not available, default internal white rectangle is used
Rectangle rec = GetFontDefault().recs[95];
if (CORE.Window.flags & FLAG_MSAA_4X_HINT)
{
// NOTE: We try to maxime rec padding to avoid pixel bleeding on MSAA filtering
SetShapesTexture(GetFontDefault().texture, (Rectangle){ rec.x + 2, rec.y + 2, 1, 1 });
}
else
{
// NOTE: We set up a 1px padding on char rectangle to avoid pixel bleeding
SetShapesTexture(GetFontDefault().texture, (Rectangle){ rec.x + 1, rec.y + 1, rec.width - 2, rec.height - 2 });
}
// Set default texture and rectangle to be used for shapes drawing
// NOTE: rlgl default texture is a 1x1 pixel UNCOMPRESSED_R8G8B8A8
Texture2D texture = { rlGetTextureIdDefault(), 1, 1, 1, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 };
SetShapesTexture(texture, (Rectangle){ 0.0f, 0.0f, 1.0f, 1.0f }); // WARNING: Module required: rshapes
#endif
#endif
#else
#if defined(SUPPORT_MODULE_RSHAPES)
// Set default texture and rectangle to be used for shapes drawing
// NOTE: rlgl default texture is a 1x1 pixel UNCOMPRESSED_R8G8B8A8
Texture2D texture = { rlGetTextureIdDefault(), 1, 1, 1, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 };
SetShapesTexture(texture, (Rectangle){ 0.0f, 0.0f, 1.0f, 1.0f }); // WARNING: Module required: rshapes
#endif
#endif
CORE.Time.frameCounter = 0;
CORE.Window.shouldClose = false;
#endif
// Initialize random seed
SetRandomSeed((unsigned int)time(NULL));
@ -1028,27 +1039,32 @@ void EndDrawing(void)
// Initialize 2D mode with custom camera (2D)
void BeginMode2D(Camera2D camera)
{
#ifndef PLATFORM_HEADLESS
rlDrawRenderBatchActive(); // Update and draw internal render batch
rlLoadIdentity(); // Reset current matrix (modelview)
// Apply 2d camera transformation to modelview
rlMultMatrixf(MatrixToFloat(GetCameraMatrix2D(camera)));
#endif
}
// Ends 2D mode with custom camera
void EndMode2D(void)
{
#ifndef PLATFORM_HEADLESS
rlDrawRenderBatchActive(); // Update and draw internal render batch
rlLoadIdentity(); // Reset current matrix (modelview)
if (rlGetActiveFramebuffer() == 0) rlMultMatrixf(MatrixToFloat(CORE.Window.screenScale)); // Apply screen scaling if required
#endif
}
// Initializes 3D mode with custom camera (3D)
void BeginMode3D(Camera camera)
{
#ifndef PLATFORM_HEADLESS
rlDrawRenderBatchActive(); // Update and draw internal render batch
rlMatrixMode(RL_PROJECTION); // Switch to projection matrix
@ -1083,11 +1099,13 @@ void BeginMode3D(Camera camera)
rlMultMatrixf(MatrixToFloat(matView)); // Multiply modelview matrix by view matrix (camera)
rlEnableDepthTest(); // Enable DEPTH_TEST for 3D
#endif
}
// Ends 3D mode and returns to default 2D orthographic mode
void EndMode3D(void)
{
#ifndef PLATFORM_HEADLESS
rlDrawRenderBatchActive(); // Update and draw internal render batch
rlMatrixMode(RL_PROJECTION); // Switch to projection matrix
@ -1099,6 +1117,7 @@ void EndMode3D(void)
if (rlGetActiveFramebuffer() == 0) rlMultMatrixf(MatrixToFloat(CORE.Window.screenScale)); // Apply screen scaling if required
rlDisableDepthTest(); // Disable DEPTH_TEST for 2D
#endif
}
// Initializes render texture for drawing
@ -1237,6 +1256,7 @@ VrStereoConfig LoadVrStereoConfig(VrDeviceInfo device)
{
VrStereoConfig config = { 0 };
#ifndef PLATFORM_HEADLESS
if (rlGetVersion() != RL_OPENGL_11)
{
// Compute aspect ratio
@ -1302,6 +1322,7 @@ VrStereoConfig LoadVrStereoConfig(VrDeviceInfo device)
*/
}
else TRACELOG(LOG_WARNING, "RLGL: VR Simulator not supported on OpenGL 1.1");
#endif
return config;
}
@ -1343,6 +1364,7 @@ Shader LoadShaderFromMemory(const char *vsCode, const char *fsCode)
{
Shader shader = { 0 };
#ifndef PLATFORM_HEADLESS
shader.id = rlLoadShaderCode(vsCode, fsCode);
if (shader.id == rlGetShaderIdDefault()) shader.locs = rlGetShaderLocsDefault();
@ -1391,6 +1413,7 @@ Shader LoadShaderFromMemory(const char *vsCode, const char *fsCode)
shader.locs[SHADER_LOC_MAP_SPECULAR] = rlGetLocationUniform(shader.id, RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1); // SHADER_LOC_MAP_METALNESS
shader.locs[SHADER_LOC_MAP_NORMAL] = rlGetLocationUniform(shader.id, RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2);
}
#endif
return shader;
}
@ -1430,6 +1453,7 @@ bool IsShaderValid(Shader shader)
// Unload shader from GPU memory (VRAM)
void UnloadShader(Shader shader)
{
#ifndef PLATFORM_HEADLESS
if (shader.id != rlGetShaderIdDefault())
{
rlUnloadShaderProgram(shader.id);
@ -1437,18 +1461,27 @@ void UnloadShader(Shader shader)
// NOTE: If shader loading failed, it should be 0
RL_FREE(shader.locs);
}
#endif
}
// Get shader uniform location
int GetShaderLocation(Shader shader, const char *uniformName)
{
#ifndef PLATFORM_HEADLESS
return rlGetLocationUniform(shader.id, uniformName);
#else
return 0;
#endif
}
// Get shader attribute location
int GetShaderLocationAttrib(Shader shader, const char *attribName)
{
#ifndef PLATFORM_HEADLESS
return rlGetLocationAttrib(shader.id, attribName);
#else
return 0;
#endif
}
// Set shader uniform value
@ -1507,6 +1540,7 @@ Ray GetScreenToWorldRayEx(Vector2 position, Camera camera, int width, int height
{
Ray ray = { 0 };
#ifndef PLATFORM_HEADLESS
// Calculate normalized device coordinates
// NOTE: y value is negative
float x = (2.0f*position.x)/(float)width - 1.0f;
@ -1554,6 +1588,7 @@ Ray GetScreenToWorldRayEx(Vector2 position, Camera camera, int width, int height
// Apply calculated vectors to ray
ray.direction = direction;
#endif
return ray;
}
@ -1605,6 +1640,9 @@ Vector2 GetWorldToScreen(Vector3 position, Camera camera)
// Get size position for a 3d world space position (useful for texture drawing)
Vector2 GetWorldToScreenEx(Vector3 position, Camera camera, int width, int height)
{
Vector2 result = { 0 };
#ifndef PLATFORM_HEADLESS
// Calculate projection matrix (from perspective instead of frustum
Matrix matProj = MatrixIdentity();
@ -1643,7 +1681,10 @@ Vector2 GetWorldToScreenEx(Vector3 position, Camera camera, int width, int heigh
// Calculate 2d screen position vector
Vector2 screenPosition = { (ndcPos.x + 1.0f)/2.0f*(float)width, (ndcPos.y + 1.0f)/2.0f*(float)height };
return screenPosition;
result = screenPosition;
#endif
return result;
}
// Get the screen space position for a 2d camera world space position