GSPGPU:SetBufferSwap: Difference between revisions

← Older edit

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 |-
 | 1
-| Screen ID: 0=main, 1=sub
+| Screen ID (0 = top, 1 = bottom)
 |-
-| 2-7
+| 2-8
-| Framebuffer info structure
+| [[GSP_Shared_Memory#Framebuffer_info_structure|Framebuffer info structure]]
 |}
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 |}
-=Framebuffer info structure=
+=Description=
-{| class="wikitable" border="1"
+This sets GSP state for the LCD framebuffers. When the value of [[GPU/External_Registers#LCD_Source_Framebuffer_Setup|VCount]] (offset 0x54) is greater than a certain constant, the GSP state for the specified screen is immediately written to the LCD registers. This constant is 0x52 on GSP for [[11.16.0-48|11.16.0-48]], though it used to be 0x54.
-|-
-!  Index Word
-!  Description
-|-
-| 0
-| Active framebuffer: 0=first, 1=second
-|-
-| 1
-| [[LCD#Framebuffers|Framebuffer]] virtual address, for the main screen this is the 3D left framebuffer
-|-
-| 2
-| For the main screen: 3D right framebuffer address
-|-
-| 3
-| Value for [[LCD|0x1EF00X90]], controls framebuffer width
-|-
-| 4
-| Framebuffer [[LCD|format]], this u16 is written to the low u16 for LCD register 0x1EF00X70.
-|-
-| 5
-| Value for [[LCD|0x1EF00X78]], controls which framebuffer is displayed
-|-
-| 6
-| "Attribute" (can be zero?)
-|}
-=Description=
+This command should only be used when directly writing to the framebuffers; when using the GPU the framebuffer info stored in [[GSP_Shared_Memory#Framebuffer_info|GSP shared memory]] should be used instead.
-This sets GSP state for the LCD framebuffers, and other state as well. When the value of [[LCD]] register 0x1EF00X54 is >0x54, the GSP state for the specified screenID is immediately written to the LCD registers. This command should only be used when directly writing to the framebuffers, otherwise when rendering to the framebuffers with the [[GPU]] the framebuffer info stored in [[GSP_Shared_Memory|GSP shared memory]] should be used instead.