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Cherry pick several improvements from #455

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- Use texture over texture2D - the latter was deprecated in GLSL 1.30.
 - Cache the tbo buffer - this saves an allocation when monitors update.

Closes #455. While the rest of the PR has some nice changes, it
performs signlificantly worse on my system.
This commit is contained in:
Lignum 2020-05-31 17:23:49 +01:00 committed by SquidDev
parent 085ae2e74a
commit 014bf55cd4
2 changed files with 10 additions and 2 deletions
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10
src/main/java/dan200/computercraft/client/render/TileEntityMonitorRenderer.java
View File

@ -35,6 +35,7 @@ import static dan200.computercraft.shared.peripheral.monitor.TileMonitor.RENDER_
public class TileEntityMonitorRenderer extends TileEntitySpecialRenderer<TileMonitor>
{
private static final float MARGIN = (float) (TileMonitor.RENDER_MARGIN * 1.1);
private static ByteBuffer tboContents;
@Override
public void render( @Nonnull TileMonitor tileEntity, double posX, double posY, double posZ, float f, int i, float f2 )
@ -162,7 +163,14 @@ public class TileEntityMonitorRenderer extends TileEntitySpecialRenderer<TileMon
if( redraw )
{
ByteBuffer monitorBuffer = GLAllocation.createDirectByteBuffer( width * height * 3 );
int size = width * height * 3;
if( tboContents == null || tboContents.capacity() < size )
{
tboContents = GLAllocation.createDirectByteBuffer( size );
}
ByteBuffer monitorBuffer = tboContents;
monitorBuffer.position( 0 );
for( int y = 0; y < height; y++ )
{
TextBuffer text = terminal.getLine( y ), textColour = terminal.getTextColourLine( y ), background = terminal.getBackgroundColourLine( y );

2
src/main/resources/assets/computercraft/shaders/monitor.frag
View File

@ -35,6 +35,6 @@ void main() {
int bg = int(texelFetch(u_tbo, index + 2).r * 255.0);
vec2 pos = (term_pos - corner) * vec2(FONT_WIDTH, FONT_HEIGHT);
vec4 img = texture2D(u_font, (texture_corner(character) + pos) / 256.0);
vec4 img = texture(u_font, (texture_corner(character) + pos) / 256.0);
colour = vec4(mix(u_palette[bg], img.rgb * u_palette[fg], img.a * mult), 1.0);
}