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fix pixel offset issue with DrawRectangleLines (#4669)

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Le Juez Victor 2025-01-10 17:36:52 +01:00 • committed by GitHub
parent 433cc23ea4
commit b554b53ede
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1 changed files with 14 additions and 11 deletions
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25
src/rshapes.c
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@ -807,22 +807,25 @@ void DrawRectangleGradientEx(Rectangle rec, Color topLeft, Color bottomLeft, Col
// but it solves another issue: https://github.com/raysan5/raylib/issues/3884 // but it solves another issue: https://github.com/raysan5/raylib/issues/3884
void DrawRectangleLines(int posX, int posY, int width, int height, Color color) void DrawRectangleLines(int posX, int posY, int width, int height, Color color)
{ {
Matrix mat = rlGetMatrixModelview(); Matrix mat = rlGetMatrixTransform();
float zoomFactor = 0.5f/mat.m0; float xOffset = 0.5f/mat.m0;
float yOffset = 0.5f/mat.m5;
rlBegin(RL_LINES); rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a); rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f((float)posX - zoomFactor, (float)posY); rlVertex2f((float)posX + xOffset, (float)posY + yOffset);
rlVertex2f((float)posX + (float)width + zoomFactor, (float)posY); rlVertex2f((float)posX + (float)width - xOffset, (float)posY + yOffset);
rlVertex2f((float)posX + (float)width, (float)posY - zoomFactor); rlVertex2f((float)posX + (float)width - xOffset, (float)posY + yOffset);
rlVertex2f((float)posX + (float)width, (float)posY + (float)height + zoomFactor); rlVertex2f((float)posX + (float)width - xOffset, (float)posY + (float)height - yOffset);
rlVertex2f((float)posX + (float)width + zoomFactor, (float)posY + (float)height); rlVertex2f((float)posX + (float)width - xOffset, (float)posY + (float)height - yOffset);
rlVertex2f((float)posX - zoomFactor, (float)posY + (float)height); rlVertex2f((float)posX + xOffset, (float)posY + (float)height - yOffset);
rlVertex2f((float)posX, (float)posY + (float)height + zoomFactor); rlVertex2f((float)posX + xOffset, (float)posY + (float)height - yOffset);
rlVertex2f((float)posX, (float)posY - zoomFactor); rlVertex2f((float)posX + xOffset, (float)posY + yOffset);
rlEnd(); rlEnd();
/* /*
// Previous implementation, it has issues... but it does not require view matrix... // Previous implementation, it has issues... but it does not require view matrix...
#if defined(SUPPORT_QUADS_DRAW_MODE) #if defined(SUPPORT_QUADS_DRAW_MODE)
@ -845,7 +848,7 @@ void DrawRectangleLines(int posX, int posY, int width, int height, Color color)
rlVertex2f((float)posX + 1, (float)posY + (float)height); rlVertex2f((float)posX + 1, (float)posY + (float)height);
rlVertex2f((float)posX + 1, (float)posY + 1); rlVertex2f((float)posX + 1, (float)posY + 1);
rlEnd(); rlEnd();
//#endif #endif
*/ */
} }