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Add overlap support for gfx_CopyRectangle and share code with gfx_BlitRectangle
1 parent fe2eb22 commit dc42d0d

7 files changed

Lines changed: 298 additions & 97 deletions

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‎examples/library_examples/graphx/copy_rectangle_overlap/.gitignore‎

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obj/
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bin/
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src/gfx/*.c
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src/gfx/*.h
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src/gfx/*.8xv
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.DS_Store
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convimg.yaml.lst

‎examples/library_examples/graphx/copy_rectangle_overlap/autotest.json‎

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{
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"transfer_files":
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[
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"bin/DEMO.8xp"
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],
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"target":
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{
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"name": "DEMO",
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"isASM": true
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},
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"sequence":
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[
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"action|launch",
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"delay|300",
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"hashWait|1",
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"key|enter",
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"hashWait|2",
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"key|enter",
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"hashWait|3",
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"key|enter",
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"hashWait|4",
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"key|enter",
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"hashWait|5"
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],
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"hashes":
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{
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"1":
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{
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"description": "Horizontal overlap right",
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"start": "vram_start",
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"size": "vram_8_size",
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"expected_CRCs": [ "9D4993C1" ]
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},
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"2":
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{
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"description": "Horizontal overlap left",
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"start": "vram_start",
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"size": "vram_8_size",
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"expected_CRCs": [ "BBD76F1C" ]
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},
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"3":
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{
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"description": "Vertical overlap down",
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"start": "vram_start",
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"size": "vram_8_size",
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"expected_CRCs": [ "7C8FC7BE" ]
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},
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"4":
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{
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"description": "Vertical overlap up",
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"start": "vram_start",
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"size": "vram_8_size",
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"expected_CRCs": [ "1C46A70A" ]
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},
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"5":
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{
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"description": "Test program exit",
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"start": "vram_start",
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"size": "vram_16_size",
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"expected_CRCs": [ "FFAF89BA", "101734A5", "9DA19F44", "A32840C8", "349F4775" ]
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}
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}
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}

‎examples/library_examples/graphx/copy_rectangle_overlap/makefile‎

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# ----------------------------
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# Makefile Options
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# ----------------------------
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NAME = DEMO
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ICON = icon.png
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DESCRIPTION = "CE C Toolchain Demo"
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COMPRESSED = NO
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CFLAGS = -Wall -Wextra -Oz
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CXXFLAGS = -Wall -Wextra -Oz
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# ----------------------------
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include $(shell cedev-config --makefile)

‎examples/library_examples/graphx/copy_rectangle_overlap/readme.md‎

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### Copy Rectangle Overlap Demo
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This example demonstrates `gfx_CopyRectangle` on overlapping regions of the same buffer.
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It shows horizontal and vertical moves in both directions using memmove-like behavior.

‎examples/library_examples/graphx/copy_rectangle_overlap/src/main.c‎

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#include <stdint.h>
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#include <graphx.h>
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#include <ti/getcsc.h>
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static void draw_base_pattern(void)
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{
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uint8_t stripe;
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gfx_FillScreen(239);
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gfx_SetColor(26);
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gfx_FillRectangle_NoClip(0, 0, GFX_LCD_WIDTH, 14);
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gfx_SetColor(27);
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gfx_FillRectangle_NoClip(0, GFX_LCD_HEIGHT - 12, GFX_LCD_WIDTH, 12);
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for (stripe = 0; stripe < 6; stripe++)
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{
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static const uint8_t colors[6] = { 224, 9, 27, 56, 186, 250 };
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uint24_t x = 24 + stripe * 40;
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gfx_SetColor(colors[stripe]);
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gfx_FillRectangle_NoClip(x, 24, 40, 120);
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gfx_SetColor(0);
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gfx_VertLine_NoClip(x, 24, 120);
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gfx_VertLine_NoClip(x + 39, 24, 120);
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gfx_SetColor(255);
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gfx_FillRectangle_NoClip(x + 6, 34 + stripe * 12, 28, 6);
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gfx_FillRectangle_NoClip(x + 6, 108 - stripe * 10, 28, 6);
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}
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gfx_SetColor(0);
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gfx_Rectangle_NoClip(23, 23, 241, 121);
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gfx_SetTextFGColor(255);
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gfx_SetTextBGColor(26);
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gfx_PrintStringXY("gfx_CopyRectangle overlap demo", 6, 3);
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gfx_SetTextFGColor(255);
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gfx_SetTextBGColor(27);
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gfx_PrintStringXY("Black border = SRC White border = DST", 6, GFX_LCD_HEIGHT - 10);
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}
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static void draw_overlay(const char *title,
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uint24_t src_x,
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uint8_t src_y,
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uint24_t dst_x,
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uint8_t dst_y,
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uint24_t width,
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uint8_t height)
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{
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gfx_SetColor(0);
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gfx_Rectangle_NoClip(src_x - 1, src_y - 1, width + 2, height + 2);
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gfx_SetColor(255);
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gfx_Rectangle_NoClip(dst_x - 1, dst_y - 1, width + 2, height + 2);
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gfx_SetColor(255);
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gfx_FillRectangle_NoClip(src_x + 2, src_y + 2, 24, 10);
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gfx_SetColor(0);
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gfx_Rectangle_NoClip(src_x + 2, src_y + 2, 24, 10);
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gfx_SetTextFGColor(0);
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gfx_SetTextBGColor(255);
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gfx_PrintStringXY("SRC", src_x + 4, src_y + 3);
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gfx_SetColor(255);
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gfx_FillRectangle_NoClip(dst_x + 2, dst_y + 2, 24, 10);
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gfx_SetColor(0);
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gfx_Rectangle_NoClip(dst_x + 2, dst_y + 2, 24, 10);
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gfx_SetTextFGColor(0);
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gfx_SetTextBGColor(255);
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gfx_PrintStringXY("DST", dst_x + 4, dst_y + 3);
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gfx_SetColor(52);
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gfx_FillRectangle_NoClip(188, 2, 130, 10);
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gfx_SetTextFGColor(255);
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gfx_SetTextBGColor(52);
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gfx_PrintStringXY(title, 192, 3);
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}
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static void show_stage(void)
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{
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gfx_BlitBuffer();
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while (!os_GetCSC())
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{
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}
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}
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int main(void)
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{
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gfx_Begin();
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gfx_SetDrawBuffer();
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draw_base_pattern();
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gfx_CopyRectangle(gfx_buffer, gfx_buffer, 24, 18, 72, 18, 180, 64);
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draw_overlay("Move right", 24, 18, 72, 18, 180, 64);
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show_stage();
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draw_base_pattern();
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gfx_CopyRectangle(gfx_buffer, gfx_buffer, 72, 18, 24, 18, 180, 64);
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draw_overlay("Move left", 72, 18, 24, 18, 180, 64);
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show_stage();
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draw_base_pattern();
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gfx_CopyRectangle(gfx_buffer, gfx_buffer, 30, 24, 30, 60, 128, 96);
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draw_overlay("Move down", 30, 24, 30, 60, 128, 96);
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show_stage();
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draw_base_pattern();
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gfx_CopyRectangle(gfx_buffer, gfx_buffer, 30, 60, 30, 24, 128, 96);
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draw_overlay("Move up", 30, 60, 30, 24, 128, 96);
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show_stage();
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gfx_End();
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return 0;
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}

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