Proxy Texture

I'am try to use GLAdjustTexSize ...

SuperStrict

Framework Brl.GLGraphics

Global Width  : Int
Global Height : Int

Graphics(640, 480)

Width  = 512
Height = 512
GLAdjustTexSize(Width, Height)

EndGraphics()
End

The result is "Unable to calculate tex size".

So I try it self...

Framework Brl.GLGraphics

Global Width  : Int
Global Height : Int

Graphics(640, 480)

glTexImage2D(GL_PROXY_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, Null)
DebugLog glGetError()

glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, Varptr(Width))
DebugLog glGetError()

glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, Varptr(Height))
DebugLog glGetError()

DebugLog Width
DebugLog Height

EndGraphics()
End

glTexImage2D produce the error code 1282 -> 0x502 -> GL_INVALID_OPERATION

GL_INVALID_OPERATION is generated if glTexImage2D is executed between the
execution of glBegin and the corresponding execution of glEnd.

GL_INVALID_OPERATION is generated if type is one of
GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV,
GL_UNSIGNED_SHORT_5_6_5, or GL_UNSIGNED_SHORT_5_6_5_REV and
format is not GL_RGB.

GL_INVALID_OPERATION is generated if type is one of
GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV,
GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV,
GL_UNSIGNED_INT_8_8_8_8, GL_UNSIGNED_INT_8_8_8_8_REV,
GL_UNSIGNED_INT_10_10_10_2, or GL_UNSIGNED_INT_2_10_10_10_REV and
format is neither GL_RGBA nor GL_BGRA.

So whats the problem?

cu olli

Chris C

replace graphics with glgraphics

Vertex

Yes, sorry, GLGraphics, but same problem.

cu olli

Dreamora

Mustn't textures be smaller than the opengl context IE in this case a maximum of 256x256 as this is the largest smaller square PoT size?

Dreamora

Not even in OpenGL 1.2 on which the commands you use are fixed? ;-)

Chris C

on my system it didnt work with graphics but glgraphics did work.

you could try setting the gldriver as default see if that helps...

basically ensure that opengl is initialised and working