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Fixed line drawing for D3D

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This commit is contained in:
Sam Lantinga
2009-12-12 20:31:28 +00:00
parent 4f4f40f930
commit cbdba43759
1 changed files with 10 additions and 1 deletions
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11
src/video/win32/SDL_d3drender.c
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@@ -1012,8 +1012,17 @@ D3D_RenderLines(SDL_Renderer * renderer, const SDL_Point * points, int count)
vertices[i].v = 0.0f;
}
result =
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count,
IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_LINESTRIP, count-1,
vertices, sizeof(*vertices));
/* DirectX 9 has the same line rasterization semantics as GDI,
so we need to close the endpoint of the line */
if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) {
vertices[0].x = (float) points[count-1].x;
vertices[0].y = (float) points[count-1].y;
result = IDirect3DDevice9_DrawPrimitiveUP(data->device, D3DPT_POINTLIST, 1, vertices, sizeof(*vertices));
}
SDL_stack_free(vertices);
if (FAILED(result)) {
D3D_SetError("DrawPrimitiveUP()", result);