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Control over srgba textures and srgba framebuffer

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bloeys
2023-10-07 10:58:01 +04:00
parent 9f9744a142
commit da50d597f9
5 changed files with 33 additions and 6 deletions
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22
assets/textures.go
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@ -45,6 +45,7 @@ type TextureLoadOptions struct {
WriteToCache bool
GenMipMaps bool
KeepPixelsInMem bool
TextureIsSrgba bool
}
type Cubemap struct {
@ -102,7 +103,12 @@ func LoadTexturePNG(file string, loadOptions *TextureLoadOptions) (Texture, erro
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
// load and generate the texture
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.SRGB_ALPHA, tex.Width, tex.Height, 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tex.Pixels[0]))
internalFormat := int32(gl.RGBA8)
if loadOptions.TextureIsSrgba {
internalFormat = gl.SRGB_ALPHA
}
gl.TexImage2D(gl.TEXTURE_2D, 0, internalFormat, tex.Width, tex.Height, 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tex.Pixels[0]))
if loadOptions.GenMipMaps {
gl.GenerateMipmap(tex.TexID)
@ -145,7 +151,12 @@ func LoadTextureInMemPngImg(img image.Image, loadOptions *TextureLoadOptions) (T
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
// load and generate the texture
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.SRGB8_ALPHA8, tex.Width, tex.Height, 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tex.Pixels[0]))
internalFormat := int32(gl.RGBA8)
if loadOptions.TextureIsSrgba {
internalFormat = gl.SRGB_ALPHA
}
gl.TexImage2D(gl.TEXTURE_2D, 0, internalFormat, tex.Width, tex.Height, 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tex.Pixels[0]))
if loadOptions.GenMipMaps {
gl.GenerateMipmap(tex.TexID)
@ -205,7 +216,12 @@ func LoadTextureJpeg(file string, loadOptions *TextureLoadOptions) (Texture, err
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
// load and generate the texture
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.SRGB8_ALPHA8, tex.Width, tex.Height, 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tex.Pixels[0]))
internalFormat := int32(gl.RGBA8)
if loadOptions.TextureIsSrgba {
internalFormat = gl.SRGB_ALPHA
}
gl.TexImage2D(gl.TEXTURE_2D, 0, internalFormat, tex.Width, tex.Height, 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tex.Pixels[0]))
if loadOptions.GenMipMaps {
gl.GenerateMipmap(tex.TexID)