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Use RL_QUADS/RL_TRIANGLES for single-pixel drawing (#2750)

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Addresses problem mentioned in
https://github.com/raysan5/raylib/issues/2744#issuecomment-1273568263
(in short: when drawing pixels using DrawPixel{,V} in camera mode,
upscaled pixel becomes a line instead of bigger pixel)
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hkc 2022-10-11 19:45:34 +03:00 • committed by GitHub
parent 4cca234f46
commit 8ebe62b4dd
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1 changed files with 36 additions and 7 deletions
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43
src/rshapes.c
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@ -104,21 +104,50 @@ void SetShapesTexture(Texture2D texture, Rectangle source)
// Draw a pixel
void DrawPixel(int posX, int posY, Color color)
{
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(posX, posY);
rlVertex2f(posX + 1, posY + 1);
rlEnd();
DrawPixelV((Vector2){ posX, posY }, color);
}
// Draw a pixel (Vector version)
void DrawPixelV(Vector2 position, Color color)
{
rlBegin(RL_LINES);
#if defined(SUPPORT_QUADS_DRAW_MODE)
rlSetTexture(texShapes.id);
rlBegin(RL_QUADS);
rlNormal3f(0.0f, 0.0f, 1.0f);
rlColor4ub(color.r, color.g, color.b, color.a);
rlTexCoord2f(texShapesRec.x/texShapes.width, texShapesRec.y/texShapes.height);
rlVertex2f(position.x, position.y);
rlVertex2f(position.x + 1.0f, position.y + 1.0f);
rlTexCoord2f(texShapesRec.x/texShapes.width, (texShapesRec.y + texShapesRec.height)/texShapes.height);
rlVertex2f(position.x, position.y + 1);
rlTexCoord2f((texShapesRec.x + texShapesRec.width)/texShapes.width, (texShapesRec.y + texShapesRec.height)/texShapes.height);
rlVertex2f(position.x + 1, position.y + 1);
rlTexCoord2f((texShapesRec.x + texShapesRec.width)/texShapes.width, texShapesRec.y/texShapes.height);
rlVertex2f(position.x + 1, position.y);
rlEnd();
rlSetTexture(0);
#else
rlBegin(RL_TRIANGLES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f(position.x, position.y);
rlVertex2f(position.x, position.y + 1);
rlVertex2f(position.x + 1, position.y);
rlVertex2f(position.x + 1, position.y);
rlVertex2f(position.x, position.y + 1);
rlVertex2f(position.x + 1, position.y + 1);
rlEnd();
#endif
}
// Draw a line