gpu.h

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void gpu_print_text

• Buffer buffer
• uint8_t ox
• uint8_t oy
• uint8_t foreground
• uint8_t background
• const char *text

Prints null-terminated char array with given foreground and background color to position (ox, oy) on given buffer.

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void gpu_print_transparent_text

• Buffer buffer
• uint8_t ox
• uint8_t oy
• uint8_t foreground
• const char *text

Prints null-terminated char array with given color to position (ox, oy) on given buffer.

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void gpu_swap_buf

• void

Swaps front- and backbuffer.

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void gpu_send_buf

• Buffer buffer
• uint8_t ox
• uint8_t oy
• uint8_t sx
• uint8_t sy
• const uint8_t *buffer

Sends data from buffer of given width sx and height xy to position (ox, oy) on given buffer.

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void gpu_display_buf

• Buffer buffer
• uint8_t ox
• uint8_t oy
• uint8_t sx
• uint8_t sy
• const uint8_t *buffer

Calls gpu_send_buf() and gpu_swap_buf() in order.

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void gpu_send_alpha_buf

• Buffer buffer
• uint8_t ox
• uint8_t oy
• uint8_t sx
• uint8_t sy
• uint8_t alpha
• const uint8_t *buffer

Like gpu_send_buf() but pixels of color are excluded from rendering.

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void gpu_blank

• Buffer buffer
• uint8_t blank_with

Sets every bit in the video buffer to <blank_with>, subsequently only color 0 or color 7 are possible

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void gpu_reset

• void

Resets the GPU.

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void gpu_update_palette

• const uint16_t *palette

Sets data at <palette> as new palette, where every color equals one uint16_t as gpio port configuration.

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void gpu_request_drm

• void

Changes rendering mode to direct rendering (DRM).

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void gpu_block_frame

• void

Waits for next rising edge of gpu_ready.

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void gpu_block_frames

• uint32_t frames

Calls gpu_wait_for_ready() times.

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void gpu_block_ack

• void

Wait until last gpu operation is concluded.

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