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graphicsdriver/opengl: Use smaller PBOs

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This commit is contained in:
Hajime Hoshi 2019-11-24 18:32:35 +09:00
parent 78e912e30b
commit 21ba42325c
1 changed files with 3 additions and 6 deletions
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9
internal/graphicsdriver/opengl/pbo_desktop.go
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@ -22,8 +22,6 @@ package opengl
import (
"reflect"
"unsafe"
"github.com/hajimehoshi/ebiten/internal/graphics"
)
const canUsePBO = true
@ -37,7 +35,7 @@ type pboState struct {
var thePBOState pboState
func (s *pboState) mapPBO(img *Image) {
w, h := graphics.InternalImageSize(img.width), graphics.InternalImageSize(img.height)
w, h := img.width, img.height
if img.pbo == *new(buffer) {
img.pbo = img.driver.context.newPixelBufferObject(w, h)
}
@ -57,7 +55,7 @@ func (s *pboState) mapPBO(img *Image) {
}
func (s *pboState) draw(pix []byte, x, y, width, height int) {
w := graphics.InternalImageSize(s.image.width)
w := s.image.width
stride := 4 * w
offset := 4 * (y*w + x)
for j := 0; j < height; j++ {
@ -67,8 +65,7 @@ func (s *pboState) draw(pix []byte, x, y, width, height int) {
func (s *pboState) unmapPBO() {
i := s.image
w, h := graphics.InternalImageSize(i.width), graphics.InternalImageSize(i.height)
i.driver.context.unmapPixelBuffer(i.pbo, w, h)
i.driver.context.unmapPixelBuffer(i.pbo, i.width, i.height)
s.image = nil
s.mappedPBO = 0