diff options
| -rw-r--r-- | src/mesa/main/fbobject.c | 67 |
1 files changed, 43 insertions, 24 deletions
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c index 17c629544b..ce27a6acac 100644 --- a/src/mesa/main/fbobject.c +++ b/src/mesa/main/fbobject.c @@ -960,42 +960,69 @@ _mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers) /** - * Given an internal format token for a renderbuffer, return the + * Given an internal format token for a render buffer, return the * corresponding base format. + * This is very similar to _mesa_base_tex_format() but the set of valid + * internal formats is somewhat different. + * + * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT + * GL_DEPTH_STENCIL_EXT or zero if error. + * + * XXX in the future when we support red-only and red-green formats + * we'll also return GL_RED and GL_RG. */ GLenum _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat) { - GLenum baseFormat; - switch (internalFormat) { + case GL_ALPHA: + case GL_ALPHA4: + case GL_ALPHA8: + case GL_ALPHA12: + case GL_ALPHA16: + return GL_ALPHA; + case GL_RGB: + case GL_R3_G3_B2: + case GL_RGB4: + case GL_RGB5: + case GL_RGB8: + case GL_RGB10: + case GL_RGB12: + case GL_RGB16: + case GL_SRGB8_EXT: + return GL_RGB; + case GL_RGBA: + case GL_RGBA2: + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGBA8: + case GL_RGB10_A2: + case GL_RGBA12: + case GL_RGBA16: case GL_RGBA16_SNORM: - /* This is used internally by Mesa for accum buffers. */ + case GL_SRGB8_ALPHA8_EXT: return GL_RGBA; case GL_STENCIL_INDEX: case GL_STENCIL_INDEX1_EXT: case GL_STENCIL_INDEX4_EXT: case GL_STENCIL_INDEX8_EXT: case GL_STENCIL_INDEX16_EXT: - /* This is not a valid texture internalFormat, but valid for - * renderbuffers. - */ return GL_STENCIL_INDEX; case GL_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT16: case GL_DEPTH_COMPONENT24: case GL_DEPTH_COMPONENT32: - /* This is an override of _mesa_base_tex_format's check that - * ARB_depth_texture is present. We allow depth RBs without it. - */ return GL_DEPTH_COMPONENT; - } - - baseFormat = _mesa_base_tex_format(ctx, internalFormat); - if (baseFormat < 0) + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + if (ctx->Extensions.EXT_packed_depth_stencil) + return GL_DEPTH_STENCIL_EXT; + else + return 0; + /* XXX add floating point formats eventually */ + default: return 0; - - return baseFormat; + } } @@ -1031,14 +1058,6 @@ renderbuffer_storage(GLenum target, GLenum internalFormat, return; } - if (baseFormat != GL_DEPTH_COMPONENT && - baseFormat != GL_STENCIL_INDEX && - baseFormat != GL_DEPTH_STENCIL && - !_mesa_is_legal_color_format(ctx, baseFormat)) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func); - return; - } - if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func); return; |