62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"unsafe"
|
||
|
|
|
||
|
|
"github.com/veandco/go-sdl2/sdl"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Whether to use RenderGeometryRaw or not
|
||
|
|
const raw = false
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
sdl.Init(sdl.INIT_EVERYTHING)
|
||
|
|
defer sdl.Quit()
|
||
|
|
|
||
|
|
window, err := sdl.CreateWindow("Test RenderGeometryRaw", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, 800, 600, sdl.WINDOW_SHOWN)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
defer window.Destroy()
|
||
|
|
|
||
|
|
renderer, err := sdl.CreateRenderer(window, -1, sdl.RENDERER_SOFTWARE)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
defer renderer.Destroy()
|
||
|
|
|
||
|
|
vertices := []sdl.Vertex{
|
||
|
|
{sdl.FPoint{400, 150}, sdl.Color{255, 0, 0, 255}, sdl.FPoint{0, 0}},
|
||
|
|
{sdl.FPoint{200, 450}, sdl.Color{0, 0, 255, 255}, sdl.FPoint{0, 0}},
|
||
|
|
{sdl.FPoint{600, 450}, sdl.Color{0, 255, 0, 255}, sdl.FPoint{0, 0}},
|
||
|
|
}
|
||
|
|
|
||
|
|
if raw {
|
||
|
|
log.Println("Using RenderGeometryRaw")
|
||
|
|
} else {
|
||
|
|
log.Println("Using RenderGeometry")
|
||
|
|
}
|
||
|
|
|
||
|
|
running := true
|
||
|
|
for running {
|
||
|
|
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
|
||
|
|
switch event.(type) {
|
||
|
|
case *sdl.QuitEvent:
|
||
|
|
running = false
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
renderer.SetDrawColor(0, 0, 0, sdl.ALPHA_OPAQUE)
|
||
|
|
renderer.Clear()
|
||
|
|
if raw {
|
||
|
|
renderer.RenderGeometryRaw(nil, (*float32)(unsafe.Pointer(&vertices[0])), 20, (*sdl.Color)(unsafe.Add(unsafe.Pointer(&vertices[0]), 8)), 20, (*float32)(unsafe.Add(unsafe.Pointer(&vertices[0]), 12)), 20, len(vertices), nil, 0, 0)
|
||
|
|
} else {
|
||
|
|
renderer.RenderGeometry(nil, vertices, nil)
|
||
|
|
}
|
||
|
|
renderer.Present()
|
||
|
|
|
||
|
|
sdl.Delay(33)
|
||
|
|
}
|
||
|
|
}
|