33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
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internal void
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DrawSACNUniversePixels (render_command_buffer* RenderBuffer, sacn_universe* ToDraw,
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v2 TopLeft, v2 Dimension)
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{
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Assert(ToDraw);
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s32 PixelsPerRow = 21;
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r32 PixelDim = Dimension.x / PixelsPerRow;
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v2 PixelSize = v2{PixelDim, PixelDim};
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v2 PixelRegister = TopLeft;
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v4 DisplayColor = {0, 0, 0, 1};
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s32 PixelsToDraw = ToDraw->SizeInSendBuffer - STREAM_HEADER_SIZE;
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render_quad_batch_constructor BatchConstructor = PushRenderQuad2DBatch(RenderBuffer, PixelsToDraw);
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u8* ColorCursor = (u8*)ToDraw->StartPositionInSendBuffer + STREAM_HEADER_SIZE;
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s32 PixelsDrawn = 0;
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for (s32 i = 0; i < PixelsToDraw; i++)
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{
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PixelRegister.x = TopLeft.x + (PixelsDrawn % PixelsPerRow) * PixelDim;
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PixelRegister.y = TopLeft.y - (PixelsDrawn / PixelsPerRow) * PixelDim;
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r32 Value = *ColorCursor++ / 255.f;
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DisplayColor.r = Value;
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DisplayColor.g = Value;
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DisplayColor.b = Value;
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PushQuad2DOnBatch(&BatchConstructor, PixelRegister, PixelRegister + PixelSize, DisplayColor);
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++PixelsDrawn;
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}
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}
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