simonkellet/ppm-viewer-odin-sdl2
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added arena for storing data

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This commit is contained in:
Simon Kellet 2026-06-02 22:25:33 +01:00
parent b7e7357ef4
commit 8cec191732
1 changed files with 9 additions and 3 deletions
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12
main.odin
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@ -1,6 +1,7 @@
package main package main
import "core:fmt" import "core:fmt"
import vmem "core:mem/virtual"
import "core:os" import "core:os"
import SDL "vendor:sdl2" import SDL "vendor:sdl2"
@ -16,19 +17,24 @@ print_usage :: proc() {
os.exit(1) os.exit(1)
} }
main :: proc() { main :: proc() {
arena: vmem.Arena
arena_err := vmem.arena_init_growing(&arena)
ensure(arena_err == nil)
arena_allocator := vmem.arena_allocator(&arena)
defer vmem.arena_destroy(&arena) //clean up everything!
file := Ppm_file{} file := Ppm_file{}
if len(os.args) > 3 || len(os.args) < 2 { if len(os.args) > 3 || len(os.args) < 2 {
print_usage() print_usage()
} }
filename := os.args[1] filename := os.args[1]
if ok, err := load_ppm(&file, filename); !ok { if ok, err := load_ppm(&file, filename, arena_allocator); !ok {
fmt.eprintfln("ERROR: Failed to load file '%s': %s ", filename, os.error_string(err)) fmt.eprintfln("ERROR: Failed to load file '%s': %s ", filename, os.error_string(err))
os.exit(1) os.exit(1)
} }
ppm_parse(&file) ppm_parse(&file, arena_allocator)
window_width: i32 = i32( window_width: i32 = i32(
file.width, file.width,