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mesa: simplify the _mesa_get_proxy_tex_image() function

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This commit is contained in:
Brian Paul 2009-01-30 15:51:58 -07:00
parent ea4b183b8c
commit 80684649a6
1 changed files with 30 additions and 85 deletions
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115
src/mesa/main/teximage.c
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@ -1,8 +1,9 @@
/*
* mesa 3-D graphics library
* Version: 7.1
* Version: 7.5
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@ -924,6 +925,7 @@ struct gl_texture_image *
_mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
{
struct gl_texture_image *texImage;
GLuint texIndex;
if (level < 0 )
return NULL;
@ -932,111 +934,54 @@ _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
case GL_PROXY_TEXTURE_1D:
if (level >= ctx->Const.MaxTextureLevels)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
}
return texImage;
texIndex = TEXTURE_1D_INDEX;
break;
case GL_PROXY_TEXTURE_2D:
if (level >= ctx->Const.MaxTextureLevels)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
}
return texImage;
texIndex = TEXTURE_2D_INDEX;
break;
case GL_PROXY_TEXTURE_3D:
if (level >= ctx->Const.Max3DTextureLevels)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
}
return texImage;
texIndex = TEXTURE_3D_INDEX;
break;
case GL_PROXY_TEXTURE_CUBE_MAP:
if (level >= ctx->Const.MaxCubeTextureLevels)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX];
}
return texImage;
texIndex = TEXTURE_CUBE_INDEX;
break;
case GL_PROXY_TEXTURE_RECTANGLE_NV:
if (level > 0)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX];
}
return texImage;
texIndex = TEXTURE_RECT_INDEX;
break;
case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
if (level >= ctx->Const.MaxTextureLevels)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX];
}
return texImage;
texIndex = TEXTURE_1D_ARRAY_INDEX;
break;
case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
if (level >= ctx->Const.MaxTextureLevels)
return NULL;
texImage = ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX];
}
return texImage;
texIndex = TEXTURE_2D_ARRAY_INDEX;
break;
default:
return NULL;
}
texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
if (!texImage) {
texImage = ctx->Driver.NewTextureImage(ctx);
if (!texImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
return NULL;
}
ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
/* Set the 'back' pointer */
texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
}
return texImage;
}